// SPDX-License-Identifier: GPL-3.0-or-later #include #include "ebpf.h" #include "ebpf_vfs.h" static char *vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_END] = { "delete", "read", "write", "fsync", "open", "create" }; static char *vfs_id_names[NETDATA_KEY_PUBLISH_VFS_END] = { "vfs_unlink", "vfs_read", "vfs_write", "vfs_fsync", "vfs_open", "vfs_create"}; static netdata_idx_t *vfs_hash_values = NULL; static netdata_syscall_stat_t vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_END]; static netdata_publish_syscall_t vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_END]; netdata_publish_vfs_t **vfs_pid = NULL; netdata_publish_vfs_t *vfs_vector = NULL; static ebpf_local_maps_t vfs_maps[] = {{.name = "tbl_vfs_pid", .internal_input = ND_EBPF_DEFAULT_PID_SIZE, .user_input = 0, .type = NETDATA_EBPF_MAP_RESIZABLE | NETDATA_EBPF_MAP_PID, .map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED}, {.name = "tbl_vfs_stats", .internal_input = NETDATA_VFS_COUNTER, .user_input = 0, .type = NETDATA_EBPF_MAP_STATIC, .map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED}, {.name = "vfs_ctrl", .internal_input = NETDATA_CONTROLLER_END, .user_input = 0, .type = NETDATA_EBPF_MAP_CONTROLLER, .map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED}, {.name = NULL, .internal_input = 0, .user_input = 0}}; struct config vfs_config = { .first_section = NULL, .last_section = NULL, .mutex = NETDATA_MUTEX_INITIALIZER, .index = { .avl_tree = { .root = NULL, .compar = appconfig_section_compare }, .rwlock = AVL_LOCK_INITIALIZER } }; struct netdata_static_thread vfs_threads = {"VFS KERNEL", NULL, NULL, 1, NULL, NULL, NULL}; static enum ebpf_threads_status ebpf_vfs_exited = NETDATA_THREAD_EBPF_RUNNING; /***************************************************************** * * FUNCTIONS TO CLOSE THE THREAD * *****************************************************************/ /** * Exit * * Cancel thread and exit. * * @param ptr thread data. **/ static void ebpf_vfs_exit(void *ptr) { ebpf_module_t *em = (ebpf_module_t *)ptr; if (!em->enabled) { em->enabled = NETDATA_MAIN_THREAD_EXITED; return; } ebpf_vfs_exited = NETDATA_THREAD_EBPF_STOPPING; } /** * Clean up the main thread. * * @param ptr thread data. **/ static void ebpf_vfs_cleanup(void *ptr) { ebpf_module_t *em = (ebpf_module_t *)ptr; if (ebpf_vfs_exited != NETDATA_THREAD_EBPF_STOPPED) return; freez(vfs_hash_values); freez(vfs_vector); freez(vfs_threads.thread); vfs_threads.enabled = NETDATA_MAIN_THREAD_EXITED; em->enabled = NETDATA_MAIN_THREAD_EXITED; } /***************************************************************** * * FUNCTIONS WITH THE MAIN LOOP * *****************************************************************/ /** * Send data to Netdata calling auxiliary functions. * * @param em the structure with thread information */ static void ebpf_vfs_send_data(ebpf_module_t *em) { netdata_publish_vfs_common_t pvc; pvc.write = (long)vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_WRITE].bytes; pvc.read = (long)vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_READ].bytes; write_count_chart(NETDATA_VFS_FILE_CLEAN_COUNT, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK], 1); write_count_chart(NETDATA_VFS_FILE_IO_COUNT, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 2); if (em->mode < MODE_ENTRY) { write_err_chart(NETDATA_VFS_FILE_ERR_COUNT, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 2); } write_io_chart(NETDATA_VFS_IO_FILE_BYTES, NETDATA_FILESYSTEM_FAMILY, vfs_id_names[NETDATA_KEY_PUBLISH_VFS_WRITE], (long long)pvc.write, vfs_id_names[NETDATA_KEY_PUBLISH_VFS_READ], (long long)pvc.read); write_count_chart(NETDATA_VFS_FSYNC, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1); if (em->mode < MODE_ENTRY) { write_err_chart(NETDATA_VFS_FSYNC_ERR, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1); } write_count_chart(NETDATA_VFS_OPEN, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1); if (em->mode < MODE_ENTRY) { write_err_chart(NETDATA_VFS_OPEN_ERR, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1); } write_count_chart(NETDATA_VFS_CREATE, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], 1); if (em->mode < MODE_ENTRY) { write_err_chart( NETDATA_VFS_CREATE_ERR, NETDATA_FILESYSTEM_FAMILY, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], 1); } } /** * Read the hash table and store data to allocated vectors. */ static void read_global_table() { uint64_t idx; netdata_idx_t res[NETDATA_VFS_COUNTER]; netdata_idx_t *val = vfs_hash_values; int fd = vfs_maps[NETDATA_VFS_ALL].map_fd; for (idx = 0; idx < NETDATA_VFS_COUNTER; idx++) { uint64_t total = 0; if (!bpf_map_lookup_elem(fd, &idx, val)) { int i; int end = ebpf_nprocs; for (i = 0; i < end; i++) total += val[i]; } res[idx] = total; } vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].ncall = res[NETDATA_KEY_CALLS_VFS_UNLINK]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].ncall = res[NETDATA_KEY_CALLS_VFS_READ] + res[NETDATA_KEY_CALLS_VFS_READV]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].ncall = res[NETDATA_KEY_CALLS_VFS_WRITE] + res[NETDATA_KEY_CALLS_VFS_WRITEV]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].ncall = res[NETDATA_KEY_CALLS_VFS_FSYNC]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].ncall = res[NETDATA_KEY_CALLS_VFS_OPEN]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].ncall = res[NETDATA_KEY_CALLS_VFS_CREATE]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].nerr = res[NETDATA_KEY_ERROR_VFS_UNLINK]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].nerr = res[NETDATA_KEY_ERROR_VFS_READ] + res[NETDATA_KEY_ERROR_VFS_READV]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].nerr = res[NETDATA_KEY_ERROR_VFS_WRITE] + res[NETDATA_KEY_ERROR_VFS_WRITEV]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].nerr = res[NETDATA_KEY_ERROR_VFS_FSYNC]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].nerr = res[NETDATA_KEY_ERROR_VFS_OPEN]; vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].nerr = res[NETDATA_KEY_ERROR_VFS_CREATE]; vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_WRITE].bytes = (uint64_t)res[NETDATA_KEY_BYTES_VFS_WRITE] + (uint64_t)res[NETDATA_KEY_BYTES_VFS_WRITEV]; vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_READ].bytes = (uint64_t)res[NETDATA_KEY_BYTES_VFS_READ] + (uint64_t)res[NETDATA_KEY_BYTES_VFS_READV]; } /** * Sum PIDs * * Sum values for all targets. * * @param swap output structure * @param root link list with structure to be used */ static void ebpf_vfs_sum_pids(netdata_publish_vfs_t *vfs, struct pid_on_target *root) { netdata_publish_vfs_t accumulator; memset(&accumulator, 0, sizeof(accumulator)); while (root) { int32_t pid = root->pid; netdata_publish_vfs_t *w = vfs_pid[pid]; if (w) { accumulator.write_call += w->write_call; accumulator.writev_call += w->writev_call; accumulator.read_call += w->read_call; accumulator.readv_call += w->readv_call; accumulator.unlink_call += w->unlink_call; accumulator.fsync_call += w->fsync_call; accumulator.open_call += w->open_call; accumulator.create_call += w->create_call; accumulator.write_bytes += w->write_bytes; accumulator.writev_bytes += w->writev_bytes; accumulator.read_bytes += w->read_bytes; accumulator.readv_bytes += w->readv_bytes; accumulator.write_err += w->write_err; accumulator.writev_err += w->writev_err; accumulator.read_err += w->read_err; accumulator.readv_err += w->readv_err; accumulator.unlink_err += w->unlink_err; accumulator.fsync_err += w->fsync_err; accumulator.open_err += w->open_err; accumulator.create_err += w->create_err; } root = root->next; } // These conditions were added, because we are using incremental algorithm vfs->write_call = (accumulator.write_call >= vfs->write_call) ? accumulator.write_call : vfs->write_call; vfs->writev_call = (accumulator.writev_call >= vfs->writev_call) ? accumulator.writev_call : vfs->writev_call; vfs->read_call = (accumulator.read_call >= vfs->read_call) ? accumulator.read_call : vfs->read_call; vfs->readv_call = (accumulator.readv_call >= vfs->readv_call) ? accumulator.readv_call : vfs->readv_call; vfs->unlink_call = (accumulator.unlink_call >= vfs->unlink_call) ? accumulator.unlink_call : vfs->unlink_call; vfs->fsync_call = (accumulator.fsync_call >= vfs->fsync_call) ? accumulator.fsync_call : vfs->fsync_call; vfs->open_call = (accumulator.open_call >= vfs->open_call) ? accumulator.open_call : vfs->open_call; vfs->create_call = (accumulator.create_call >= vfs->create_call) ? accumulator.create_call : vfs->create_call; vfs->write_bytes = (accumulator.write_bytes >= vfs->write_bytes) ? accumulator.write_bytes : vfs->write_bytes; vfs->writev_bytes = (accumulator.writev_bytes >= vfs->writev_bytes) ? accumulator.writev_bytes : vfs->writev_bytes; vfs->read_bytes = (accumulator.read_bytes >= vfs->read_bytes) ? accumulator.read_bytes : vfs->read_bytes; vfs->readv_bytes = (accumulator.readv_bytes >= vfs->readv_bytes) ? accumulator.readv_bytes : vfs->readv_bytes; vfs->write_err = (accumulator.write_err >= vfs->write_err) ? accumulator.write_err : vfs->write_err; vfs->writev_err = (accumulator.writev_err >= vfs->writev_err) ? accumulator.writev_err : vfs->writev_err; vfs->read_err = (accumulator.read_err >= vfs->read_err) ? accumulator.read_err : vfs->read_err; vfs->readv_err = (accumulator.readv_err >= vfs->readv_err) ? accumulator.readv_err : vfs->readv_err; vfs->unlink_err = (accumulator.unlink_err >= vfs->unlink_err) ? accumulator.unlink_err : vfs->unlink_err; vfs->fsync_err = (accumulator.fsync_err >= vfs->fsync_err) ? accumulator.fsync_err : vfs->fsync_err; vfs->open_err = (accumulator.open_err >= vfs->open_err) ? accumulator.open_err : vfs->open_err; vfs->create_err = (accumulator.create_err >= vfs->create_err) ? accumulator.create_err : vfs->create_err; } /** * Send data to Netdata calling auxiliary functions. * * @param em the structure with thread information * @param root the target list. */ void ebpf_vfs_send_apps_data(ebpf_module_t *em, struct target *root) { struct target *w; for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { ebpf_vfs_sum_pids(&w->vfs, w->root_pid); } } write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_FILE_DELETED); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.unlink_call); } } write_end_chart(); write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.write_call + w->vfs.writev_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.write_err + w->vfs.writev_err); } } write_end_chart(); } write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.read_call + w->vfs.readv_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.read_err + w->vfs.readv_err); } } write_end_chart(); } write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.write_bytes + w->vfs.writev_bytes); } } write_end_chart(); write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_BYTES); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.read_bytes + w->vfs.readv_bytes); } } write_end_chart(); write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.fsync_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.fsync_err); } } write_end_chart(); } write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.open_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.open_err); } } write_end_chart(); } write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.create_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR); for (w = root; w; w = w->next) { if (unlikely(w->exposed && w->processes)) { write_chart_dimension(w->name, w->vfs.create_err); } } write_end_chart(); } } /** * Apps Accumulator * * Sum all values read from kernel and store in the first address. * * @param out the vector with read values. */ static void vfs_apps_accumulator(netdata_publish_vfs_t *out) { int i, end = (running_on_kernel >= NETDATA_KERNEL_V4_15) ? ebpf_nprocs : 1; netdata_publish_vfs_t *total = &out[0]; for (i = 1; i < end; i++) { netdata_publish_vfs_t *w = &out[i]; total->write_call += w->write_call; total->writev_call += w->writev_call; total->read_call += w->read_call; total->readv_call += w->readv_call; total->unlink_call += w->unlink_call; total->write_bytes += w->write_bytes; total->writev_bytes += w->writev_bytes; total->read_bytes += w->read_bytes; total->readv_bytes += w->readv_bytes; total->write_err += w->write_err; total->writev_err += w->writev_err; total->read_err += w->read_err; total->readv_err += w->readv_err; total->unlink_err += w->unlink_err; } } /** * Fill PID * * Fill PID structures * * @param current_pid pid that we are collecting data * @param out values read from hash tables; */ static void vfs_fill_pid(uint32_t current_pid, netdata_publish_vfs_t *publish) { netdata_publish_vfs_t *curr = vfs_pid[current_pid]; if (!curr) { curr = callocz(1, sizeof(netdata_publish_vfs_t)); vfs_pid[current_pid] = curr; } memcpy(curr, &publish[0], sizeof(netdata_publish_vfs_t)); } /** * Read the hash table and store data to allocated vectors. */ static void ebpf_vfs_read_apps() { struct pid_stat *pids = root_of_pids; netdata_publish_vfs_t *vv = vfs_vector; int fd = vfs_maps[NETDATA_VFS_PID].map_fd; size_t length = sizeof(netdata_publish_vfs_t) * ebpf_nprocs; while (pids) { uint32_t key = pids->pid; if (bpf_map_lookup_elem(fd, &key, vv)) { pids = pids->next; continue; } vfs_apps_accumulator(vv); vfs_fill_pid(key, vv); // We are cleaning to avoid passing data read from one process to other. memset(vv, 0, length); pids = pids->next; } } /** * Update cgroup * * Update cgroup data based in */ static void read_update_vfs_cgroup() { ebpf_cgroup_target_t *ect ; netdata_publish_vfs_t *vv = vfs_vector; int fd = vfs_maps[NETDATA_VFS_PID].map_fd; size_t length = sizeof(netdata_publish_vfs_t) * ebpf_nprocs; pthread_mutex_lock(&mutex_cgroup_shm); for (ect = ebpf_cgroup_pids; ect; ect = ect->next) { struct pid_on_target2 *pids; for (pids = ect->pids; pids; pids = pids->next) { int pid = pids->pid; netdata_publish_vfs_t *out = &pids->vfs; if (likely(vfs_pid) && vfs_pid[pid]) { netdata_publish_vfs_t *in = vfs_pid[pid]; memcpy(out, in, sizeof(netdata_publish_vfs_t)); } else { memset(vv, 0, length); if (!bpf_map_lookup_elem(fd, &pid, vv)) { vfs_apps_accumulator(vv); memcpy(out, vv, sizeof(netdata_publish_vfs_t)); } } } } pthread_mutex_unlock(&mutex_cgroup_shm); } /** * VFS read hash * * This is the thread callback. * This thread is necessary, because we cannot freeze the whole plugin to read the data. * * @param ptr It is a NULL value for this thread. * * @return It always returns NULL. */ void *ebpf_vfs_read_hash(void *ptr) { netdata_thread_cleanup_push(ebpf_vfs_cleanup, ptr); heartbeat_t hb; heartbeat_init(&hb); ebpf_module_t *em = (ebpf_module_t *)ptr; usec_t step = NETDATA_LATENCY_VFS_SLEEP_MS * em->update_every; //This will be cancelled by its parent while (ebpf_vfs_exited == NETDATA_THREAD_EBPF_RUNNING) { usec_t dt = heartbeat_next(&hb, step); (void)dt; if (ebpf_vfs_exited == NETDATA_THREAD_EBPF_STOPPING) break; read_global_table(); } ebpf_vfs_exited = NETDATA_THREAD_EBPF_STOPPED; netdata_thread_cleanup_pop(1); return NULL; } /** * Sum PIDs * * Sum values for all targets. * * @param vfs structure used to store data * @param pids input data */ static void ebpf_vfs_sum_cgroup_pids(netdata_publish_vfs_t *vfs, struct pid_on_target2 *pids) { netdata_publish_vfs_t accumulator; memset(&accumulator, 0, sizeof(accumulator)); while (pids) { netdata_publish_vfs_t *w = &pids->vfs; accumulator.write_call += w->write_call; accumulator.writev_call += w->writev_call; accumulator.read_call += w->read_call; accumulator.readv_call += w->readv_call; accumulator.unlink_call += w->unlink_call; accumulator.fsync_call += w->fsync_call; accumulator.open_call += w->open_call; accumulator.create_call += w->create_call; accumulator.write_bytes += w->write_bytes; accumulator.writev_bytes += w->writev_bytes; accumulator.read_bytes += w->read_bytes; accumulator.readv_bytes += w->readv_bytes; accumulator.write_err += w->write_err; accumulator.writev_err += w->writev_err; accumulator.read_err += w->read_err; accumulator.readv_err += w->readv_err; accumulator.unlink_err += w->unlink_err; accumulator.fsync_err += w->fsync_err; accumulator.open_err += w->open_err; accumulator.create_err += w->create_err; pids = pids->next; } // These conditions were added, because we are using incremental algorithm vfs->write_call = (accumulator.write_call >= vfs->write_call) ? accumulator.write_call : vfs->write_call; vfs->writev_call = (accumulator.writev_call >= vfs->writev_call) ? accumulator.writev_call : vfs->writev_call; vfs->read_call = (accumulator.read_call >= vfs->read_call) ? accumulator.read_call : vfs->read_call; vfs->readv_call = (accumulator.readv_call >= vfs->readv_call) ? accumulator.readv_call : vfs->readv_call; vfs->unlink_call = (accumulator.unlink_call >= vfs->unlink_call) ? accumulator.unlink_call : vfs->unlink_call; vfs->fsync_call = (accumulator.fsync_call >= vfs->fsync_call) ? accumulator.fsync_call : vfs->fsync_call; vfs->open_call = (accumulator.open_call >= vfs->open_call) ? accumulator.open_call : vfs->open_call; vfs->create_call = (accumulator.create_call >= vfs->create_call) ? accumulator.create_call : vfs->create_call; vfs->write_bytes = (accumulator.write_bytes >= vfs->write_bytes) ? accumulator.write_bytes : vfs->write_bytes; vfs->writev_bytes = (accumulator.writev_bytes >= vfs->writev_bytes) ? accumulator.writev_bytes : vfs->writev_bytes; vfs->read_bytes = (accumulator.read_bytes >= vfs->read_bytes) ? accumulator.read_bytes : vfs->read_bytes; vfs->readv_bytes = (accumulator.readv_bytes >= vfs->readv_bytes) ? accumulator.readv_bytes : vfs->readv_bytes; vfs->write_err = (accumulator.write_err >= vfs->write_err) ? accumulator.write_err : vfs->write_err; vfs->writev_err = (accumulator.writev_err >= vfs->writev_err) ? accumulator.writev_err : vfs->writev_err; vfs->read_err = (accumulator.read_err >= vfs->read_err) ? accumulator.read_err : vfs->read_err; vfs->readv_err = (accumulator.readv_err >= vfs->readv_err) ? accumulator.readv_err : vfs->readv_err; vfs->unlink_err = (accumulator.unlink_err >= vfs->unlink_err) ? accumulator.unlink_err : vfs->unlink_err; vfs->fsync_err = (accumulator.fsync_err >= vfs->fsync_err) ? accumulator.fsync_err : vfs->fsync_err; vfs->open_err = (accumulator.open_err >= vfs->open_err) ? accumulator.open_err : vfs->open_err; vfs->create_err = (accumulator.create_err >= vfs->create_err) ? accumulator.create_err : vfs->create_err; } /** * Create specific VFS charts * * Create charts for cgroup/application. * * @param type the chart type. * @param em the main thread structure. */ static void ebpf_create_specific_vfs_charts(char *type, ebpf_module_t *em) { ebpf_create_chart(type, NETDATA_SYSCALL_APPS_FILE_DELETED,"Files deleted", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_UNLINK_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5500, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5501, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); if (em->mode < MODE_ENTRY) { ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_ERROR_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5502, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); } ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5503, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); if (em->mode < MODE_ENTRY) { ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_ERROR_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5504, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); } ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk", EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_BYTES_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5505, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk", EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_BYTES_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5506, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls for vfs_fsync", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_FSYNC_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5507, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); if (em->mode < MODE_ENTRY) { ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_FSYNC_ERROR_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5508, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); } ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls for vfs_open", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_OPEN_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5509, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); if (em->mode < MODE_ENTRY) { ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_OPEN_ERROR_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5510, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); } ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls for vfs_create", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_CREATE_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5511, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); if (em->mode < MODE_ENTRY) { ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_CREATE_ERROR_CONTEXT, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5512, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP); } } /** * Obsolete specific VFS charts * * Obsolete charts for cgroup/application. * * @param type the chart type. * @param em the main thread structure. */ static void ebpf_obsolete_specific_vfs_charts(char *type, ebpf_module_t *em) { ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_FILE_DELETED, "Files deleted", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_UNLINK_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5500, em->update_every); ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5501, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_ERROR_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5502, em->update_every); } ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5503, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_ERROR_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5504, em->update_every); } ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk", EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_BYTES_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5505, em->update_every); ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk", EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_BYTES_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5506, em->update_every); ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls for vfs_fsync", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_FSYNC_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5507, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_FSYNC_ERROR_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5508, em->update_every); } ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls for vfs_open", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_OPEN_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5509, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_OPEN_ERROR_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5510, em->update_every); } ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls for vfs_create", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_CREATE_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5511, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_CREATE_ERROR_CONTEXT, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5512, em->update_every); } } /* * Send specific VFS data * * Send data for specific cgroup/apps. * * @param type chart type * @param values structure with values that will be sent to netdata */ static void ebpf_send_specific_vfs_data(char *type, netdata_publish_vfs_t *values, ebpf_module_t *em) { write_begin_chart(type, NETDATA_SYSCALL_APPS_FILE_DELETED); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].name, (long long)values->unlink_call); write_end_chart(); write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name, (long long)values->write_call + (long long)values->writev_call); write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name, (long long)values->write_err + (long long)values->writev_err); write_end_chart(); } write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name, (long long)values->read_call + (long long)values->readv_call); write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name, (long long)values->read_err + (long long)values->readv_err); write_end_chart(); } write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name, (long long)values->write_bytes + (long long)values->writev_bytes); write_end_chart(); write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name, (long long)values->read_bytes + (long long)values->readv_bytes); write_end_chart(); write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].name, (long long)values->fsync_call); write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].name, (long long)values->fsync_err); write_end_chart(); } write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].name, (long long)values->open_call); write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].name, (long long)values->open_err); write_end_chart(); } write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].name, (long long)values->create_call); write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR); write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].name, (long long)values->create_err); write_end_chart(); } } /** * Create Systemd Socket Charts * * Create charts when systemd is enabled * * @param em the main collector structure **/ static void ebpf_create_systemd_vfs_charts(ebpf_module_t *em) { ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_FILE_DELETED, "Files deleted", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20065, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_UNLINK_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20066, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_WRITE_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20067, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_WRITE_ERROR_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); } ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20068, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_READ_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20069, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_READ_ERROR_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); } ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk", EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20070, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_WRITE_BYTES_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk", EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20071, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_READ_BYTES_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls to vfs_fsync", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20072, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_FSYNC_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20073, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_FSYNC_ERROR_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); } ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls to vfs_open", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20074, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_OPEN_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20075, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_OPEN_ERROR_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); } ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls to vfs_create", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20076, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_CREATE_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20077, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_CREATE_ERROR_CONTEXT, NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); } } /** * Send Systemd charts * * Send collected data to Netdata. * * @param em the main collector structure * * @return It returns the status for chart creation, if it is necessary to remove a specific dimension, zero is returned * otherwise function returns 1 to avoid chart recreation */ static int ebpf_send_systemd_vfs_charts(ebpf_module_t *em) { int ret = 1; ebpf_cgroup_target_t *ect; write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_FILE_DELETED); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.unlink_call); } else if (unlikely(ect->systemd)) ret = 0; } write_end_chart(); write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_call + ect->publish_systemd_vfs.writev_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_err + ect->publish_systemd_vfs.writev_err); } } write_end_chart(); } write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_call + ect->publish_systemd_vfs.readv_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_err + ect->publish_systemd_vfs.readv_err); } } write_end_chart(); } write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_bytes + ect->publish_systemd_vfs.writev_bytes); } } write_end_chart(); write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_BYTES); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_bytes + ect->publish_systemd_vfs.readv_bytes); } } write_end_chart(); write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.fsync_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.fsync_err); } } write_end_chart(); } write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.open_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.open_err); } } write_end_chart(); } write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.create_call); } } write_end_chart(); if (em->mode < MODE_ENTRY) { write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR); for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (unlikely(ect->systemd) && unlikely(ect->updated)) { write_chart_dimension(ect->name, ect->publish_systemd_vfs.create_err); } } write_end_chart(); } return ret; } /** * Send data to Netdata calling auxiliary functions. * * @param em the main collector structure */ static void ebpf_vfs_send_cgroup_data(ebpf_module_t *em) { if (!ebpf_cgroup_pids) return; pthread_mutex_lock(&mutex_cgroup_shm); ebpf_cgroup_target_t *ect; for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { ebpf_vfs_sum_cgroup_pids(&ect->publish_systemd_vfs, ect->pids); } int has_systemd = shm_ebpf_cgroup.header->systemd_enabled; if (has_systemd) { static int systemd_charts = 0; if (!systemd_charts) { ebpf_create_systemd_vfs_charts(em); systemd_charts = 1; } systemd_charts = ebpf_send_systemd_vfs_charts(em); } for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { if (ect->systemd) continue; if (!(ect->flags & NETDATA_EBPF_CGROUP_HAS_VFS_CHART) && ect->updated) { ebpf_create_specific_vfs_charts(ect->name, em); ect->flags |= NETDATA_EBPF_CGROUP_HAS_VFS_CHART; } if (ect->flags & NETDATA_EBPF_CGROUP_HAS_VFS_CHART) { if (ect->updated) { ebpf_send_specific_vfs_data(ect->name, &ect->publish_systemd_vfs, em); } else { ebpf_obsolete_specific_vfs_charts(ect->name, em); ect->flags &= ~NETDATA_EBPF_CGROUP_HAS_VFS_CHART; } } } pthread_mutex_unlock(&mutex_cgroup_shm); } /** * Main loop for this collector. * * @param step the number of microseconds used with heart beat * @param em the structure with thread information */ static void vfs_collector(ebpf_module_t *em) { vfs_threads.thread = mallocz(sizeof(netdata_thread_t)); vfs_threads.start_routine = ebpf_vfs_read_hash; netdata_thread_create(vfs_threads.thread, vfs_threads.name, NETDATA_THREAD_OPTION_DEFAULT, ebpf_vfs_read_hash, em); int cgroups = em->cgroup_charts; heartbeat_t hb; heartbeat_init(&hb); usec_t step = em->update_every * USEC_PER_SEC; while (!ebpf_exit_plugin) { (void)heartbeat_next(&hb, step); if (ebpf_exit_plugin) break; netdata_apps_integration_flags_t apps = em->apps_charts; pthread_mutex_lock(&collect_data_mutex); if (apps) ebpf_vfs_read_apps(); if (cgroups) read_update_vfs_cgroup(); pthread_mutex_lock(&lock); ebpf_vfs_send_data(em); fflush(stdout); if (apps & NETDATA_EBPF_APPS_FLAG_CHART_CREATED) ebpf_vfs_send_apps_data(em, apps_groups_root_target); if (cgroups) ebpf_vfs_send_cgroup_data(em); pthread_mutex_unlock(&lock); pthread_mutex_unlock(&collect_data_mutex); } } /***************************************************************** * * FUNCTIONS TO CREATE CHARTS * *****************************************************************/ /** * Create IO chart * * @param family the chart family * @param name the chart name * @param axis the axis label * @param web the group name used to attach the chart on dashboard * @param order the order number of the specified chart * @param algorithm the algorithm used to make the charts. * @param update_every value to overwrite the update frequency set by the server. */ static void ebpf_create_io_chart(char *family, char *name, char *axis, char *web, int order, int algorithm, int update_every) { printf("CHART %s.%s '' 'Bytes written and read' '%s' '%s' '' line %d %d '' 'ebpf.plugin' 'filesystem'\n", family, name, axis, web, order, update_every); printf("DIMENSION %s %s %s 1 1\n", vfs_id_names[NETDATA_KEY_PUBLISH_VFS_READ], vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_READ], ebpf_algorithms[algorithm]); printf("DIMENSION %s %s %s -1 1\n", vfs_id_names[NETDATA_KEY_PUBLISH_VFS_WRITE], vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_WRITE], ebpf_algorithms[algorithm]); } /** * Create global charts * * Call ebpf_create_chart to create the charts for the collector. * * @param em a pointer to the structure with the default values. */ static void ebpf_create_global_charts(ebpf_module_t *em) { ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_FILE_CLEAN_COUNT, "Remove files", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_CLEAN, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_FILE_IO_COUNT, "Calls to IO", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_COUNT, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 2, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); ebpf_create_io_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_IO_FILE_BYTES, EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_BYTES, NETDATA_EBPF_INCREMENTAL_IDX, em->update_every); if (em->mode < MODE_ENTRY) { ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_FILE_ERR_COUNT, "Fails to write or read", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EBYTES, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 2, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_FSYNC, "Calls for vfs_fsync", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_FSYNC, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); if (em->mode < MODE_ENTRY) { ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_FSYNC_ERR, "Fails to synchronize", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EFSYNC, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_OPEN, "Calls for vfs_open", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_OPEN, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); if (em->mode < MODE_ENTRY) { ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_OPEN_ERR, "Fails to open a file", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EOPEN, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_CREATE, "Calls for vfs_create", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_CREATE, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); if (em->mode < MODE_ENTRY) { ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_VFS_CREATE_ERR, "Fails to create a file.", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NULL, NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_ECREATE, ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } } /** * Create process apps charts * * Call ebpf_create_chart to create the charts on apps submenu. * * @param em a pointer to the structure with the default values. * @param ptr a pointer for the targets. **/ void ebpf_vfs_create_apps_charts(struct ebpf_module *em, void *ptr) { struct target *root = ptr; ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_FILE_DELETED, "Files deleted", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20065, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20066, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20067, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20068, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20069, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk", EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20070, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk", EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20071, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls for vfs_fsync", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20072, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20073, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls for vfs_open", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20074, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20075, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls for vfs_create", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20076, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); if (em->mode < MODE_ENTRY) { ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error", EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, NETDATA_EBPF_CHART_TYPE_STACKED, 20077, ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); } em->apps_charts |= NETDATA_EBPF_APPS_FLAG_CHART_CREATED; } /***************************************************************** * * FUNCTIONS TO START THREAD * *****************************************************************/ /** * Allocate vectors used with this thread. * We are not testing the return, because callocz does this and shutdown the software * case it was not possible to allocate. * * @param apps is apps enabled? */ static void ebpf_vfs_allocate_global_vectors(int apps) { memset(vfs_aggregated_data, 0, sizeof(vfs_aggregated_data)); memset(vfs_publish_aggregated, 0, sizeof(vfs_publish_aggregated)); vfs_hash_values = callocz(ebpf_nprocs, sizeof(netdata_idx_t)); vfs_vector = callocz(ebpf_nprocs, sizeof(netdata_publish_vfs_t)); if (apps) vfs_pid = callocz((size_t)pid_max, sizeof(netdata_publish_vfs_t *)); } /***************************************************************** * * EBPF VFS THREAD * *****************************************************************/ /** * Process thread * * Thread used to generate process charts. * * @param ptr a pointer to `struct ebpf_module` * * @return It always return NULL */ void *ebpf_vfs_thread(void *ptr) { netdata_thread_cleanup_push(ebpf_vfs_exit, ptr); ebpf_module_t *em = (ebpf_module_t *)ptr; em->maps = vfs_maps; ebpf_update_pid_table(&vfs_maps[NETDATA_VFS_PID], em); ebpf_vfs_allocate_global_vectors(em->apps_charts); if (!em->enabled) goto endvfs; em->probe_links = ebpf_load_program(ebpf_plugin_dir, em, running_on_kernel, isrh, &em->objects); if (!em->probe_links) { em->enabled = CONFIG_BOOLEAN_NO; goto endvfs; } int algorithms[NETDATA_KEY_PUBLISH_VFS_END] = { NETDATA_EBPF_INCREMENTAL_IDX, NETDATA_EBPF_INCREMENTAL_IDX,NETDATA_EBPF_INCREMENTAL_IDX, NETDATA_EBPF_INCREMENTAL_IDX, NETDATA_EBPF_INCREMENTAL_IDX,NETDATA_EBPF_INCREMENTAL_IDX }; ebpf_global_labels(vfs_aggregated_data, vfs_publish_aggregated, vfs_dimension_names, vfs_id_names, algorithms, NETDATA_KEY_PUBLISH_VFS_END); pthread_mutex_lock(&lock); ebpf_create_global_charts(em); ebpf_update_stats(&plugin_statistics, em); pthread_mutex_unlock(&lock); vfs_collector(em); endvfs: if (!em->enabled) ebpf_update_disabled_plugin_stats(em); netdata_thread_cleanup_pop(1); return NULL; }