diff options
Diffstat (limited to 'collectors/ebpf.plugin/ebpf_shm.c')
| -rw-r--r-- | collectors/ebpf.plugin/ebpf_shm.c | 201 |
1 files changed, 195 insertions, 6 deletions
diff --git a/collectors/ebpf.plugin/ebpf_shm.c b/collectors/ebpf.plugin/ebpf_shm.c index 94ac624b3..78ada81f7 100644 --- a/collectors/ebpf.plugin/ebpf_shm.c +++ b/collectors/ebpf.plugin/ebpf_shm.c @@ -50,6 +50,10 @@ netdata_ebpf_targets_t shm_targets[] = { {.name = "shmget", .mode = EBPF_LOAD_TR {.name = "shmctl", .mode = EBPF_LOAD_TRAMPOLINE}, {.name = NULL, .mode = EBPF_LOAD_TRAMPOLINE}}; +#ifdef NETDATA_DEV_MODE +int shm_disable_priority; +#endif + #ifdef LIBBPF_MAJOR_VERSION /***************************************************************** * @@ -288,6 +292,150 @@ static inline int ebpf_shm_load_and_attach(struct shm_bpf *obj, ebpf_module_t *e * FUNCTIONS TO CLOSE THE THREAD *****************************************************************/ +static void ebpf_obsolete_specific_shm_charts(char *type, int update_every); + +/** + * Obsolete services + * + * Obsolete all service charts created + * + * @param em a pointer to `struct ebpf_module` + */ +static void ebpf_obsolete_shm_services(ebpf_module_t *em) +{ + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SHMGET_CHART, + "Calls to syscall <code>shmget(2)</code>.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_APPS_IPC_SHM_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20191, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SHMAT_CHART, + "Calls to syscall <code>shmat(2)</code>.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_APPS_IPC_SHM_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20192, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SHMDT_CHART, + "Calls to syscall <code>shmdt(2)</code>.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_APPS_IPC_SHM_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20193, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SHMCTL_CHART, + "Calls to syscall <code>shmctl(2)</code>.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_APPS_IPC_SHM_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20193, + em->update_every); +} + +/** + * Obsolete cgroup chart + * + * Send obsolete for all charts created before to close. + * + * @param em a pointer to `struct ebpf_module` + */ +static inline void ebpf_obsolete_shm_cgroup_charts(ebpf_module_t *em) { + pthread_mutex_lock(&mutex_cgroup_shm); + + ebpf_obsolete_shm_services(em); + + ebpf_cgroup_target_t *ect; + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (ect->systemd) + continue; + + ebpf_obsolete_specific_shm_charts(ect->name, em->update_every); + } + pthread_mutex_unlock(&mutex_cgroup_shm); +} + +/** + * Obsolette apps charts + * + * Obsolete apps charts. + * + * @param em a pointer to the structure with the default values. + */ +void ebpf_obsolete_shm_apps_charts(struct ebpf_module *em) +{ + ebpf_write_chart_obsolete(NETDATA_APPS_FAMILY, + NETDATA_SHMGET_CHART, + "Calls to syscall <code>shmget(2)</code>.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_APPS_IPC_SHM_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20191, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_APPS_FAMILY, + NETDATA_SHMAT_CHART, + "Calls to syscall <code>shmat(2)</code>.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_APPS_IPC_SHM_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20192, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_APPS_FAMILY, + NETDATA_SHMDT_CHART, + "Calls to syscall <code>shmdt(2)</code>.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_APPS_IPC_SHM_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20193, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_APPS_FAMILY, + NETDATA_SHMCTL_CHART, + "Calls to syscall <code>shmctl(2)</code>.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_APPS_IPC_SHM_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20194, + em->update_every); +} + +/** + * Obsolete global + * + * Obsolete global charts created by thread. + * + * @param em a pointer to `struct ebpf_module` + */ +static void ebpf_obsolete_shm_global(ebpf_module_t *em) +{ + ebpf_write_chart_obsolete(NETDATA_EBPF_SYSTEM_GROUP, + NETDATA_SHM_GLOBAL_CHART, + "Calls to shared memory system calls", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_SYSTEM_IPC_SHM_SUBMENU, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_SYSTEM_IPC_SHARED_MEM_CALLS, + em->update_every); +} + /** * SHM Exit * @@ -299,16 +447,46 @@ static void ebpf_shm_exit(void *ptr) { ebpf_module_t *em = (ebpf_module_t *)ptr; + if (em->enabled == NETDATA_THREAD_EBPF_FUNCTION_RUNNING) { + pthread_mutex_lock(&lock); + if (em->cgroup_charts) { + ebpf_obsolete_shm_cgroup_charts(em); + fflush(stdout); + } + + if (em->apps_charts & NETDATA_EBPF_APPS_FLAG_CHART_CREATED) { + ebpf_obsolete_shm_apps_charts(em); + } + + ebpf_obsolete_shm_global(em); + +#ifdef NETDATA_DEV_MODE + if (ebpf_aral_shm_pid) + ebpf_statistic_obsolete_aral_chart(em, shm_disable_priority); +#endif + + fflush(stdout); + pthread_mutex_unlock(&lock); + } + + ebpf_update_kernel_memory_with_vector(&plugin_statistics, em->maps, EBPF_ACTION_STAT_REMOVE); + #ifdef LIBBPF_MAJOR_VERSION - if (shm_bpf_obj) + if (shm_bpf_obj) { shm_bpf__destroy(shm_bpf_obj); + shm_bpf_obj = NULL; + } #endif - if (em->objects) + if (em->objects) { ebpf_unload_legacy_code(em->objects, em->probe_links); + em->objects = NULL; + em->probe_links = NULL; + } pthread_mutex_lock(&ebpf_exit_cleanup); em->enabled = NETDATA_THREAD_EBPF_STOPPED; + ebpf_update_stats(&plugin_statistics, em); pthread_mutex_unlock(&ebpf_exit_cleanup); } @@ -859,7 +1037,9 @@ static void shm_collector(ebpf_module_t *em) heartbeat_init(&hb); int counter = update_every - 1; int maps_per_core = em->maps_per_core; - while (!ebpf_exit_plugin) { + uint32_t running_time = 0; + uint32_t lifetime = em->lifetime; + while (!ebpf_exit_plugin && running_time < lifetime) { (void)heartbeat_next(&hb, USEC_PER_SEC); if (ebpf_exit_plugin || ++counter != update_every) continue; @@ -895,6 +1075,15 @@ static void shm_collector(ebpf_module_t *em) pthread_mutex_unlock(&lock); pthread_mutex_unlock(&collect_data_mutex); + + pthread_mutex_lock(&ebpf_exit_cleanup); + if (running_time && !em->running_time) + running_time = update_every; + else + running_time += update_every; + + em->running_time = running_time; + pthread_mutex_unlock(&ebpf_exit_cleanup); } } @@ -1037,7 +1226,7 @@ static int ebpf_shm_load_bpf(ebpf_module_t *em) if (ret) - error("%s %s", EBPF_DEFAULT_ERROR_MSG, em->thread_name); + netdata_log_error("%s %s", EBPF_DEFAULT_ERROR_MSG, em->thread_name); return ret; } @@ -1084,10 +1273,10 @@ void *ebpf_shm_thread(void *ptr) pthread_mutex_lock(&lock); ebpf_create_shm_charts(em->update_every); ebpf_update_stats(&plugin_statistics, em); - ebpf_update_kernel_memory_with_vector(&plugin_statistics, em->maps); + ebpf_update_kernel_memory_with_vector(&plugin_statistics, em->maps, EBPF_ACTION_STAT_ADD); #ifdef NETDATA_DEV_MODE if (ebpf_aral_shm_pid) - ebpf_statistic_create_aral_chart(NETDATA_EBPF_SHM_ARAL_NAME, em); + shm_disable_priority = ebpf_statistic_create_aral_chart(NETDATA_EBPF_SHM_ARAL_NAME, em); #endif pthread_mutex_unlock(&lock); |