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authorDaniel Baumann <daniel.baumann@progress-linux.org>2023-07-20 04:49:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2023-07-20 04:49:55 +0000
commitab1bb5b7f1c3c3a7b240ab7fc8661459ecd7decb (patch)
tree7a900833aad3ccc685712c6c2a7d87576d54f427 /collectors/ebpf.plugin/ebpf_dcstat.c
parentAdding upstream version 1.40.1. (diff)
downloadnetdata-ab1bb5b7f1c3c3a7b240ab7fc8661459ecd7decb.tar.xz
netdata-ab1bb5b7f1c3c3a7b240ab7fc8661459ecd7decb.zip
Adding upstream version 1.41.0.upstream/1.41.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'collectors/ebpf.plugin/ebpf_dcstat.c')
-rw-r--r--collectors/ebpf.plugin/ebpf_dcstat.c217
1 files changed, 208 insertions, 9 deletions
diff --git a/collectors/ebpf.plugin/ebpf_dcstat.c b/collectors/ebpf.plugin/ebpf_dcstat.c
index 4157f0c87..dba3f44d9 100644
--- a/collectors/ebpf.plugin/ebpf_dcstat.c
+++ b/collectors/ebpf.plugin/ebpf_dcstat.c
@@ -59,6 +59,10 @@ netdata_ebpf_targets_t dc_targets[] = { {.name = "lookup_fast", .mode = EBPF_LOA
{.name = "d_lookup", .mode = EBPF_LOAD_TRAMPOLINE},
{.name = NULL, .mode = EBPF_LOAD_TRAMPOLINE}};
+#ifdef NETDATA_DEV_MODE
+int dcstat_disable_priority;
+#endif
+
#ifdef LIBBPF_MAJOR_VERSION
/**
* Disable probe
@@ -195,7 +199,7 @@ netdata_ebpf_program_loaded_t ebpf_dc_update_load(ebpf_module_t *em)
return EBPF_LOAD_TRAMPOLINE;
if (em->targets[NETDATA_DC_TARGET_LOOKUP_FAST].mode != EBPF_LOAD_RETPROBE)
- info("When your kernel was compiled the symbol %s was modified, instead to use `trampoline`, the plugin will use `probes`.",
+ netdata_log_info("When your kernel was compiled the symbol %s was modified, instead to use `trampoline`, the plugin will use `probes`.",
dc_optional_name[NETDATA_DC_TARGET_LOOKUP_FAST].function_to_attach);
return EBPF_LOAD_RETPROBE;
@@ -285,6 +289,160 @@ void dcstat_update_publish(netdata_publish_dcstat_t *out, uint64_t cache_access,
*
*****************************************************************/
+static void ebpf_obsolete_specific_dc_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_dc_services(ebpf_module_t *em)
+{
+ ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
+ NETDATA_DC_HIT_CHART,
+ "Percentage of files inside directory cache",
+ EBPF_COMMON_DIMENSION_PERCENTAGE,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_LINE,
+ NETDATA_SYSTEMD_DC_HIT_RATIO_CONTEXT,
+ 21200,
+ em->update_every);
+
+ ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
+ NETDATA_DC_REFERENCE_CHART,
+ "Count file access",
+ EBPF_COMMON_DIMENSION_FILES,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_LINE,
+ NETDATA_SYSTEMD_DC_REFERENCE_CONTEXT,
+ 21201,
+ em->update_every);
+
+ ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
+ NETDATA_DC_REQUEST_NOT_CACHE_CHART,
+ "Files not present inside directory cache",
+ EBPF_COMMON_DIMENSION_FILES,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_LINE,
+ NETDATA_SYSTEMD_DC_NOT_CACHE_CONTEXT,
+ 21202,
+ em->update_every);
+
+ ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
+ NETDATA_DC_REQUEST_NOT_FOUND_CHART,
+ "Files not found",
+ EBPF_COMMON_DIMENSION_FILES,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_LINE,
+ NETDATA_SYSTEMD_DC_NOT_FOUND_CONTEXT,
+ 21202,
+ 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_dc_cgroup_charts(ebpf_module_t *em) {
+ pthread_mutex_lock(&mutex_cgroup_shm);
+
+ ebpf_obsolete_dc_services(em);
+
+ ebpf_cgroup_target_t *ect;
+ for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
+ if (ect->systemd)
+ continue;
+
+ ebpf_obsolete_specific_dc_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_dc_apps_charts(struct ebpf_module *em)
+{
+ ebpf_write_chart_obsolete(NETDATA_APPS_FAMILY,
+ NETDATA_DC_HIT_CHART,
+ "Percentage of files inside directory cache",
+ EBPF_COMMON_DIMENSION_PERCENTAGE,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_LINE,
+ NULL,
+ 20100,
+ em->update_every);
+
+ ebpf_write_chart_obsolete(NETDATA_APPS_FAMILY,
+ NETDATA_DC_REFERENCE_CHART,
+ "Count file access",
+ EBPF_COMMON_DIMENSION_FILES,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_STACKED,
+ NULL,
+ 20101,
+ em->update_every);
+
+ ebpf_write_chart_obsolete(NETDATA_APPS_FAMILY,
+ NETDATA_DC_REQUEST_NOT_CACHE_CHART,
+ "Files not present inside directory cache",
+ EBPF_COMMON_DIMENSION_FILES,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_STACKED,
+ NULL,
+ 20102,
+ em->update_every);
+
+ ebpf_write_chart_obsolete(NETDATA_APPS_FAMILY,
+ NETDATA_DC_REQUEST_NOT_FOUND_CHART,
+ "Files not found",
+ EBPF_COMMON_DIMENSION_FILES,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_STACKED,
+ NULL,
+ 20103,
+ em->update_every);
+}
+
+/**
+ * Obsolete global
+ *
+ * Obsolete global charts created by thread.
+ *
+ * @param em a pointer to `struct ebpf_module`
+ */
+static void ebpf_obsolete_dc_global(ebpf_module_t *em)
+{
+ ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY,
+ NETDATA_DC_HIT_CHART,
+ "Percentage of files inside directory cache",
+ EBPF_COMMON_DIMENSION_PERCENTAGE,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_LINE,
+ NULL,
+ 21200,
+ em->update_every);
+
+ ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY,
+ NETDATA_DC_REFERENCE_CHART,
+ "Variables used to calculate hit ratio.",
+ EBPF_COMMON_DIMENSION_FILES,
+ NETDATA_DIRECTORY_CACHE_SUBMENU,
+ NETDATA_EBPF_CHART_TYPE_LINE,
+ NULL,
+ 21201,
+ em->update_every);
+}
+
/**
* DCstat exit
*
@@ -296,16 +454,46 @@ static void ebpf_dcstat_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_dc_cgroup_charts(em);
+ fflush(stdout);
+ }
+
+ if (em->apps_charts & NETDATA_EBPF_APPS_FLAG_CHART_CREATED) {
+ ebpf_obsolete_dc_apps_charts(em);
+ }
+
+ ebpf_obsolete_dc_global(em);
+
+#ifdef NETDATA_DEV_MODE
+ if (ebpf_aral_dcstat_pid)
+ ebpf_statistic_obsolete_aral_chart(em, dcstat_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 (dc_bpf_obj)
+ if (dc_bpf_obj) {
dc_bpf__destroy(dc_bpf_obj);
+ dc_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);
}
@@ -979,7 +1167,9 @@ static void dcstat_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)
@@ -1012,6 +1202,15 @@ static void dcstat_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);
}
}
@@ -1028,7 +1227,7 @@ static void dcstat_collector(ebpf_module_t *em)
*
* @param update_every value to overwrite the update frequency set by the server.
*/
-static void ebpf_create_filesystem_charts(int update_every)
+static void ebpf_create_dc_global_charts(int update_every)
{
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, NETDATA_DC_HIT_CHART,
"Percentage of files inside directory cache",
@@ -1112,7 +1311,7 @@ static int ebpf_dcstat_load_bpf(ebpf_module_t *em)
#endif
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;
}
@@ -1156,12 +1355,12 @@ void *ebpf_dcstat_thread(void *ptr)
algorithms, NETDATA_DCSTAT_IDX_END);
pthread_mutex_lock(&lock);
- ebpf_create_filesystem_charts(em->update_every);
+ ebpf_create_dc_global_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_dcstat_pid)
- ebpf_statistic_create_aral_chart(NETDATA_EBPF_DCSTAT_ARAL_NAME, em);
+ dcstat_disable_priority = ebpf_statistic_create_aral_chart(NETDATA_EBPF_DCSTAT_ARAL_NAME, em);
#endif
pthread_mutex_unlock(&lock);