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-rw-r--r--daemon/global_statistics.c533
1 files changed, 533 insertions, 0 deletions
diff --git a/daemon/global_statistics.c b/daemon/global_statistics.c
new file mode 100644
index 0000000..9933d0d
--- /dev/null
+++ b/daemon/global_statistics.c
@@ -0,0 +1,533 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "common.h"
+
+#define GLOBAL_STATS_RESET_WEB_USEC_MAX 0x01
+
+
+static struct global_statistics {
+ volatile uint16_t connected_clients;
+
+ volatile uint64_t web_requests;
+ volatile uint64_t web_usec;
+ volatile uint64_t web_usec_max;
+ volatile uint64_t bytes_received;
+ volatile uint64_t bytes_sent;
+ volatile uint64_t content_size;
+ volatile uint64_t compressed_content_size;
+
+ volatile uint64_t web_client_count;
+
+ volatile uint64_t rrdr_queries_made;
+ volatile uint64_t rrdr_db_points_read;
+ volatile uint64_t rrdr_result_points_generated;
+} global_statistics = {
+ .connected_clients = 0,
+ .web_requests = 0,
+ .web_usec = 0,
+ .bytes_received = 0,
+ .bytes_sent = 0,
+ .content_size = 0,
+ .compressed_content_size = 0,
+ .web_client_count = 1,
+
+ .rrdr_queries_made = 0,
+ .rrdr_db_points_read = 0,
+ .rrdr_result_points_generated = 0,
+};
+
+#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
+#else
+netdata_mutex_t global_statistics_mutex = NETDATA_MUTEX_INITIALIZER;
+
+static inline void global_statistics_lock(void) {
+ netdata_mutex_lock(&global_statistics_mutex);
+}
+
+static inline void global_statistics_unlock(void) {
+ netdata_mutex_unlock(&global_statistics_mutex);
+}
+#endif
+
+
+void rrdr_query_completed(uint64_t db_points_read, uint64_t result_points_generated) {
+#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
+ __atomic_fetch_add(&global_statistics.rrdr_queries_made, 1, __ATOMIC_SEQ_CST);
+ __atomic_fetch_add(&global_statistics.rrdr_db_points_read, db_points_read, __ATOMIC_SEQ_CST);
+ __atomic_fetch_add(&global_statistics.rrdr_result_points_generated, result_points_generated, __ATOMIC_SEQ_CST);
+#else
+ #warning NOT using atomic operations - using locks for global statistics
+ if (web_server_is_multithreaded)
+ global_statistics_lock();
+
+ global_statistics.rrdr_queries_made++;
+ global_statistics.rrdr_db_points_read += db_points_read;
+ global_statistics.rrdr_result_points_generated += result_points_generated;
+
+ if (web_server_is_multithreaded)
+ global_statistics_unlock();
+#endif
+}
+
+void finished_web_request_statistics(uint64_t dt,
+ uint64_t bytes_received,
+ uint64_t bytes_sent,
+ uint64_t content_size,
+ uint64_t compressed_content_size) {
+#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
+ uint64_t old_web_usec_max = global_statistics.web_usec_max;
+ while(dt > old_web_usec_max)
+ __atomic_compare_exchange(&global_statistics.web_usec_max, &old_web_usec_max, &dt, 1, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
+
+ __atomic_fetch_add(&global_statistics.web_requests, 1, __ATOMIC_SEQ_CST);
+ __atomic_fetch_add(&global_statistics.web_usec, dt, __ATOMIC_SEQ_CST);
+ __atomic_fetch_add(&global_statistics.bytes_received, bytes_received, __ATOMIC_SEQ_CST);
+ __atomic_fetch_add(&global_statistics.bytes_sent, bytes_sent, __ATOMIC_SEQ_CST);
+ __atomic_fetch_add(&global_statistics.content_size, content_size, __ATOMIC_SEQ_CST);
+ __atomic_fetch_add(&global_statistics.compressed_content_size, compressed_content_size, __ATOMIC_SEQ_CST);
+#else
+#warning NOT using atomic operations - using locks for global statistics
+ if (web_server_is_multithreaded)
+ global_statistics_lock();
+
+ if (dt > global_statistics.web_usec_max)
+ global_statistics.web_usec_max = dt;
+
+ global_statistics.web_requests++;
+ global_statistics.web_usec += dt;
+ global_statistics.bytes_received += bytes_received;
+ global_statistics.bytes_sent += bytes_sent;
+ global_statistics.content_size += content_size;
+ global_statistics.compressed_content_size += compressed_content_size;
+
+ if (web_server_is_multithreaded)
+ global_statistics_unlock();
+#endif
+}
+
+uint64_t web_client_connected(void) {
+#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
+ __atomic_fetch_add(&global_statistics.connected_clients, 1, __ATOMIC_SEQ_CST);
+ uint64_t id = __atomic_fetch_add(&global_statistics.web_client_count, 1, __ATOMIC_SEQ_CST);
+#else
+ if (web_server_is_multithreaded)
+ global_statistics_lock();
+
+ global_statistics.connected_clients++;
+ uint64_t id = global_statistics.web_client_count++;
+
+ if (web_server_is_multithreaded)
+ global_statistics_unlock();
+#endif
+
+ return id;
+}
+
+void web_client_disconnected(void) {
+#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
+ __atomic_fetch_sub(&global_statistics.connected_clients, 1, __ATOMIC_SEQ_CST);
+#else
+ if (web_server_is_multithreaded)
+ global_statistics_lock();
+
+ global_statistics.connected_clients--;
+
+ if (web_server_is_multithreaded)
+ global_statistics_unlock();
+#endif
+}
+
+
+static inline void global_statistics_copy(struct global_statistics *gs, uint8_t options) {
+#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
+ gs->connected_clients = __atomic_fetch_add(&global_statistics.connected_clients, 0, __ATOMIC_SEQ_CST);
+ gs->web_requests = __atomic_fetch_add(&global_statistics.web_requests, 0, __ATOMIC_SEQ_CST);
+ gs->web_usec = __atomic_fetch_add(&global_statistics.web_usec, 0, __ATOMIC_SEQ_CST);
+ gs->web_usec_max = __atomic_fetch_add(&global_statistics.web_usec_max, 0, __ATOMIC_SEQ_CST);
+ gs->bytes_received = __atomic_fetch_add(&global_statistics.bytes_received, 0, __ATOMIC_SEQ_CST);
+ gs->bytes_sent = __atomic_fetch_add(&global_statistics.bytes_sent, 0, __ATOMIC_SEQ_CST);
+ gs->content_size = __atomic_fetch_add(&global_statistics.content_size, 0, __ATOMIC_SEQ_CST);
+ gs->compressed_content_size = __atomic_fetch_add(&global_statistics.compressed_content_size, 0, __ATOMIC_SEQ_CST);
+ gs->web_client_count = __atomic_fetch_add(&global_statistics.web_client_count, 0, __ATOMIC_SEQ_CST);
+
+ gs->rrdr_queries_made = __atomic_fetch_add(&global_statistics.rrdr_queries_made, 0, __ATOMIC_SEQ_CST);
+ gs->rrdr_db_points_read = __atomic_fetch_add(&global_statistics.rrdr_db_points_read, 0, __ATOMIC_SEQ_CST);
+ gs->rrdr_result_points_generated = __atomic_fetch_add(&global_statistics.rrdr_result_points_generated, 0, __ATOMIC_SEQ_CST);
+
+ if(options & GLOBAL_STATS_RESET_WEB_USEC_MAX) {
+ uint64_t n = 0;
+ __atomic_compare_exchange(&global_statistics.web_usec_max, &gs->web_usec_max, &n, 1, __ATOMIC_SEQ_CST,
+ __ATOMIC_SEQ_CST);
+ }
+#else
+ global_statistics_lock();
+
+ memcpy(gs, (const void *)&global_statistics, sizeof(struct global_statistics));
+
+ if (options & GLOBAL_STATS_RESET_WEB_USEC_MAX)
+ global_statistics.web_usec_max = 0;
+
+ global_statistics_unlock();
+#endif
+}
+
+void global_statistics_charts(void) {
+ static unsigned long long old_web_requests = 0,
+ old_web_usec = 0,
+ old_content_size = 0,
+ old_compressed_content_size = 0;
+
+ static collected_number compression_ratio = -1,
+ average_response_time = -1;
+
+ struct global_statistics gs;
+ struct rusage me, thread;
+
+ global_statistics_copy(&gs, GLOBAL_STATS_RESET_WEB_USEC_MAX);
+ getrusage(RUSAGE_THREAD, &thread);
+ getrusage(RUSAGE_SELF, &me);
+
+ {
+ static RRDSET *st_cpu_thread = NULL;
+ static RRDDIM *rd_cpu_thread_user = NULL,
+ *rd_cpu_thread_system = NULL;
+
+#ifdef __FreeBSD__
+ if (unlikely(!st_cpu_thread)) {
+ st_cpu_thread = rrdset_create_localhost(
+ "netdata"
+ , "plugin_freebsd_cpu"
+ , NULL
+ , "freebsd"
+ , NULL
+ , "NetData FreeBSD Plugin CPU usage"
+ , "milliseconds/s"
+ , "netdata"
+ , "stats"
+ , 132000
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_STACKED
+ );
+#else
+ if (unlikely(!st_cpu_thread)) {
+ st_cpu_thread = rrdset_create_localhost(
+ "netdata"
+ , "plugin_proc_cpu"
+ , NULL
+ , "proc"
+ , NULL
+ , "NetData Proc Plugin CPU usage"
+ , "milliseconds/s"
+ , "netdata"
+ , "stats"
+ , 132000
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_STACKED
+ );
+#endif
+
+ rd_cpu_thread_user = rrddim_add(st_cpu_thread, "user", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
+ rd_cpu_thread_system = rrddim_add(st_cpu_thread, "system", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
+ }
+ else
+ rrdset_next(st_cpu_thread);
+
+ rrddim_set_by_pointer(st_cpu_thread, rd_cpu_thread_user, thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
+ rrddim_set_by_pointer(st_cpu_thread, rd_cpu_thread_system, thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
+ rrdset_done(st_cpu_thread);
+ }
+
+ // ----------------------------------------------------------------
+
+ {
+ static RRDSET *st_cpu = NULL;
+ static RRDDIM *rd_cpu_user = NULL,
+ *rd_cpu_system = NULL;
+
+ if (unlikely(!st_cpu)) {
+ st_cpu = rrdset_create_localhost(
+ "netdata"
+ , "server_cpu"
+ , NULL
+ , "netdata"
+ , NULL
+ , "NetData CPU usage"
+ , "milliseconds/s"
+ , "netdata"
+ , "stats"
+ , 130000
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_STACKED
+ );
+
+ rd_cpu_user = rrddim_add(st_cpu, "user", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
+ rd_cpu_system = rrddim_add(st_cpu, "system", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
+ }
+ else
+ rrdset_next(st_cpu);
+
+ rrddim_set_by_pointer(st_cpu, rd_cpu_user, me.ru_utime.tv_sec * 1000000ULL + me.ru_utime.tv_usec);
+ rrddim_set_by_pointer(st_cpu, rd_cpu_system, me.ru_stime.tv_sec * 1000000ULL + me.ru_stime.tv_usec);
+ rrdset_done(st_cpu);
+ }
+
+ // ----------------------------------------------------------------
+
+ {
+ static RRDSET *st_clients = NULL;
+ static RRDDIM *rd_clients = NULL;
+
+ if (unlikely(!st_clients)) {
+ st_clients = rrdset_create_localhost(
+ "netdata"
+ , "clients"
+ , NULL
+ , "netdata"
+ , NULL
+ , "NetData Web Clients"
+ , "connected clients"
+ , "netdata"
+ , "stats"
+ , 130200
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rd_clients = rrddim_add(st_clients, "clients", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else
+ rrdset_next(st_clients);
+
+ rrddim_set_by_pointer(st_clients, rd_clients, gs.connected_clients);
+ rrdset_done(st_clients);
+ }
+
+ // ----------------------------------------------------------------
+
+ {
+ static RRDSET *st_reqs = NULL;
+ static RRDDIM *rd_requests = NULL;
+
+ if (unlikely(!st_reqs)) {
+ st_reqs = rrdset_create_localhost(
+ "netdata"
+ , "requests"
+ , NULL
+ , "netdata"
+ , NULL
+ , "NetData Web Requests"
+ , "requests/s"
+ , "netdata"
+ , "stats"
+ , 130300
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rd_requests = rrddim_add(st_reqs, "requests", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+ }
+ else
+ rrdset_next(st_reqs);
+
+ rrddim_set_by_pointer(st_reqs, rd_requests, (collected_number) gs.web_requests);
+ rrdset_done(st_reqs);
+ }
+
+ // ----------------------------------------------------------------
+
+ {
+ static RRDSET *st_bytes = NULL;
+ static RRDDIM *rd_in = NULL,
+ *rd_out = NULL;
+
+ if (unlikely(!st_bytes)) {
+ st_bytes = rrdset_create_localhost(
+ "netdata"
+ , "net"
+ , NULL
+ , "netdata"
+ , NULL
+ , "NetData Network Traffic"
+ , "kilobits/s"
+ , "netdata"
+ , "stats"
+ , 130000
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_AREA
+ );
+
+ rd_in = rrddim_add(st_bytes, "in", NULL, 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
+ rd_out = rrddim_add(st_bytes, "out", NULL, -8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
+ }
+ else
+ rrdset_next(st_bytes);
+
+ rrddim_set_by_pointer(st_bytes, rd_in, (collected_number) gs.bytes_received);
+ rrddim_set_by_pointer(st_bytes, rd_out, (collected_number) gs.bytes_sent);
+ rrdset_done(st_bytes);
+ }
+
+ // ----------------------------------------------------------------
+
+ {
+ static RRDSET *st_duration = NULL;
+ static RRDDIM *rd_average = NULL,
+ *rd_max = NULL;
+
+ if (unlikely(!st_duration)) {
+ st_duration = rrdset_create_localhost(
+ "netdata"
+ , "response_time"
+ , NULL
+ , "netdata"
+ , NULL
+ , "NetData API Response Time"
+ , "milliseconds/request"
+ , "netdata"
+ , "stats"
+ , 130400
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rd_average = rrddim_add(st_duration, "average", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
+ rd_max = rrddim_add(st_duration, "max", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else
+ rrdset_next(st_duration);
+
+ uint64_t gweb_usec = gs.web_usec;
+ uint64_t gweb_requests = gs.web_requests;
+
+ uint64_t web_usec = (gweb_usec >= old_web_usec) ? gweb_usec - old_web_usec : 0;
+ uint64_t web_requests = (gweb_requests >= old_web_requests) ? gweb_requests - old_web_requests : 0;
+
+ old_web_usec = gweb_usec;
+ old_web_requests = gweb_requests;
+
+ if (web_requests)
+ average_response_time = (collected_number) (web_usec / web_requests);
+
+ if (unlikely(average_response_time != -1))
+ rrddim_set_by_pointer(st_duration, rd_average, average_response_time);
+ else
+ rrddim_set_by_pointer(st_duration, rd_average, 0);
+
+ rrddim_set_by_pointer(st_duration, rd_max, ((gs.web_usec_max)?(collected_number)gs.web_usec_max:average_response_time));
+ rrdset_done(st_duration);
+ }
+
+ // ----------------------------------------------------------------
+
+ {
+ static RRDSET *st_compression = NULL;
+ static RRDDIM *rd_savings = NULL;
+
+ if (unlikely(!st_compression)) {
+ st_compression = rrdset_create_localhost(
+ "netdata"
+ , "compression_ratio"
+ , NULL
+ , "netdata"
+ , NULL
+ , "NetData API Responses Compression Savings Ratio"
+ , "percentage"
+ , "netdata"
+ , "stats"
+ , 130500
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rd_savings = rrddim_add(st_compression, "savings", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else
+ rrdset_next(st_compression);
+
+ // since we don't lock here to read the global statistics
+ // read the smaller value first
+ unsigned long long gcompressed_content_size = gs.compressed_content_size;
+ unsigned long long gcontent_size = gs.content_size;
+
+ unsigned long long compressed_content_size = gcompressed_content_size - old_compressed_content_size;
+ unsigned long long content_size = gcontent_size - old_content_size;
+
+ old_compressed_content_size = gcompressed_content_size;
+ old_content_size = gcontent_size;
+
+ if (content_size && content_size >= compressed_content_size)
+ compression_ratio = ((content_size - compressed_content_size) * 100 * 1000) / content_size;
+
+ if (compression_ratio != -1)
+ rrddim_set_by_pointer(st_compression, rd_savings, compression_ratio);
+
+ rrdset_done(st_compression);
+ }
+
+ // ----------------------------------------------------------------
+
+ if(gs.rrdr_queries_made) {
+ static RRDSET *st_rrdr_queries = NULL;
+ static RRDDIM *rd_queries = NULL;
+
+ if (unlikely(!st_rrdr_queries)) {
+ st_rrdr_queries = rrdset_create_localhost(
+ "netdata"
+ , "queries"
+ , NULL
+ , "queries"
+ , NULL
+ , "NetData API Queries"
+ , "queries/s"
+ , "netdata"
+ , "stats"
+ , 130500
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rd_queries = rrddim_add(st_rrdr_queries, "queries", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+ }
+ else
+ rrdset_next(st_rrdr_queries);
+
+ rrddim_set_by_pointer(st_rrdr_queries, rd_queries, (collected_number)gs.rrdr_queries_made);
+
+ rrdset_done(st_rrdr_queries);
+ }
+
+ // ----------------------------------------------------------------
+
+ if(gs.rrdr_db_points_read || gs.rrdr_result_points_generated) {
+ static RRDSET *st_rrdr_points = NULL;
+ static RRDDIM *rd_points_read = NULL;
+ static RRDDIM *rd_points_generated = NULL;
+
+ if (unlikely(!st_rrdr_points)) {
+ st_rrdr_points = rrdset_create_localhost(
+ "netdata"
+ , "db_points"
+ , NULL
+ , "queries"
+ , NULL
+ , "NetData API Points"
+ , "points/s"
+ , "netdata"
+ , "stats"
+ , 130501
+ , localhost->rrd_update_every
+ , RRDSET_TYPE_AREA
+ );
+
+ rd_points_read = rrddim_add(st_rrdr_points, "read", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+ rd_points_generated = rrddim_add(st_rrdr_points, "generated", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
+ }
+ else
+ rrdset_next(st_rrdr_points);
+
+ rrddim_set_by_pointer(st_rrdr_points, rd_points_read, (collected_number)gs.rrdr_db_points_read);
+ rrddim_set_by_pointer(st_rrdr_points, rd_points_generated, (collected_number)gs.rrdr_result_points_generated);
+
+ rrdset_done(st_rrdr_points);
+ }
+}