diff options
Diffstat (limited to 'daemon/global_statistics.c')
| -rw-r--r-- | daemon/global_statistics.c | 533 |
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); + } +} |