From 836b47cb7e99a977c5a23b059ca1d0b5065d310e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 24 Jul 2024 11:54:23 +0200 Subject: Merging upstream version 1.46.3. Signed-off-by: Daniel Baumann --- web/api/queries/percentile/Makefile.am | 8 -- web/api/queries/percentile/README.md | 62 ------------ web/api/queries/percentile/percentile.c | 6 -- web/api/queries/percentile/percentile.h | 172 -------------------------------- 4 files changed, 248 deletions(-) delete mode 100644 web/api/queries/percentile/Makefile.am delete mode 100644 web/api/queries/percentile/README.md delete mode 100644 web/api/queries/percentile/percentile.c delete mode 100644 web/api/queries/percentile/percentile.h (limited to 'web/api/queries/percentile') diff --git a/web/api/queries/percentile/Makefile.am b/web/api/queries/percentile/Makefile.am deleted file mode 100644 index 161784b8..00000000 --- a/web/api/queries/percentile/Makefile.am +++ /dev/null @@ -1,8 +0,0 @@ -# SPDX-License-Identifier: GPL-3.0-or-later - -AUTOMAKE_OPTIONS = subdir-objects -MAINTAINERCLEANFILES = $(srcdir)/Makefile.in - -dist_noinst_DATA = \ - README.md \ - $(NULL) diff --git a/web/api/queries/percentile/README.md b/web/api/queries/percentile/README.md deleted file mode 100644 index e0d21ee7..00000000 --- a/web/api/queries/percentile/README.md +++ /dev/null @@ -1,62 +0,0 @@ - - -# Percentile - -The percentile is the average value of a series using only the smaller N percentile of the values. -(a population or a probability distribution). - -Netdata applies linear interpolation on the last point, if the percentile requested does not give a round number of -points. - -The following percentile aliases are defined: - -- `percentile25` -- `percentile50` -- `percentile75` -- `percentile80` -- `percentile90` -- `percentile95` -- `percentile97` -- `percentile98` -- `percentile99` - -The default `percentile` is an alias for `percentile95`. -Any percentile may be requested using the `group_options` query parameter. - -## how to use - -Use it in alerts like this: - -``` - alarm: my_alert - on: my_chart -lookup: percentile95 -1m unaligned of my_dimension - warn: $this > 1000 -``` - -`percentile` does not change the units. For example, if the chart units is `requests/sec`, the result -will be again expressed in the same units. - -It can also be used in APIs and badges as `&group=percentile` in the URL and the additional parameter `group_options` -may be used to request any percentile (e.g. `&group=percentile&group_options=96`). - -## Examples - -Examining last 1 minute `successful` web server responses: - -- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=min&after=-60&label=min) -- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=average&after=-60&label=average) -- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=percentile95&after=-60&label=percentile95&value_color=orange) -- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=max&after=-60&label=max) - -## References - -- . diff --git a/web/api/queries/percentile/percentile.c b/web/api/queries/percentile/percentile.c deleted file mode 100644 index da3b3269..00000000 --- a/web/api/queries/percentile/percentile.c +++ /dev/null @@ -1,6 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#include "percentile.h" - -// ---------------------------------------------------------------------------- -// median diff --git a/web/api/queries/percentile/percentile.h b/web/api/queries/percentile/percentile.h deleted file mode 100644 index 0532f9d3..00000000 --- a/web/api/queries/percentile/percentile.h +++ /dev/null @@ -1,172 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#ifndef NETDATA_API_QUERIES_PERCENTILE_H -#define NETDATA_API_QUERIES_PERCENTILE_H - -#include "../query.h" -#include "../rrdr.h" - -struct tg_percentile { - size_t series_size; - size_t next_pos; - NETDATA_DOUBLE percent; - - NETDATA_DOUBLE *series; -}; - -static inline void tg_percentile_create_internal(RRDR *r, const char *options, NETDATA_DOUBLE def) { - long entries = r->view.group; - if(entries < 10) entries = 10; - - struct tg_percentile *g = (struct tg_percentile *)onewayalloc_callocz(r->internal.owa, 1, sizeof(struct tg_percentile)); - g->series = onewayalloc_mallocz(r->internal.owa, entries * sizeof(NETDATA_DOUBLE)); - g->series_size = (size_t)entries; - - g->percent = def; - if(options && *options) { - g->percent = str2ndd(options, NULL); - if(!netdata_double_isnumber(g->percent)) g->percent = 0.0; - if(g->percent < 0.0) g->percent = 0.0; - if(g->percent > 100.0) g->percent = 100.0; - } - - g->percent = g->percent / 100.0; - r->time_grouping.data = g; -} - -static inline void tg_percentile_create_25(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 25.0); -} -static inline void tg_percentile_create_50(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 50.0); -} -static inline void tg_percentile_create_75(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 75.0); -} -static inline void tg_percentile_create_80(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 80.0); -} -static inline void tg_percentile_create_90(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 90.0); -} -static inline void tg_percentile_create_95(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 95.0); -} -static inline void tg_percentile_create_97(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 97.0); -} -static inline void tg_percentile_create_98(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 98.0); -} -static inline void tg_percentile_create_99(RRDR *r, const char *options) { - tg_percentile_create_internal(r, options, 99.0); -} - -// resets when switches dimensions -// so, clear everything to restart -static inline void tg_percentile_reset(RRDR *r) { - struct tg_percentile *g = (struct tg_percentile *)r->time_grouping.data; - g->next_pos = 0; -} - -static inline void tg_percentile_free(RRDR *r) { - struct tg_percentile *g = (struct tg_percentile *)r->time_grouping.data; - if(g) onewayalloc_freez(r->internal.owa, g->series); - - onewayalloc_freez(r->internal.owa, r->time_grouping.data); - r->time_grouping.data = NULL; -} - -static inline void tg_percentile_add(RRDR *r, NETDATA_DOUBLE value) { - struct tg_percentile *g = (struct tg_percentile *)r->time_grouping.data; - - if(unlikely(g->next_pos >= g->series_size)) { - g->series = onewayalloc_doublesize( r->internal.owa, g->series, g->series_size * sizeof(NETDATA_DOUBLE)); - g->series_size *= 2; - } - - g->series[g->next_pos++] = value; -} - -static inline NETDATA_DOUBLE tg_percentile_flush(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) { - struct tg_percentile *g = (struct tg_percentile *)r->time_grouping.data; - - NETDATA_DOUBLE value; - size_t available_slots = g->next_pos; - - if(unlikely(!available_slots)) { - value = 0.0; - *rrdr_value_options_ptr |= RRDR_VALUE_EMPTY; - } - else if(available_slots == 1) { - value = g->series[0]; - } - else { - sort_series(g->series, available_slots); - - NETDATA_DOUBLE min = g->series[0]; - NETDATA_DOUBLE max = g->series[available_slots - 1]; - - if (min != max) { - size_t slots_to_use = (size_t)((NETDATA_DOUBLE)available_slots * g->percent); - if(!slots_to_use) slots_to_use = 1; - - NETDATA_DOUBLE percent_to_use = (NETDATA_DOUBLE)slots_to_use / (NETDATA_DOUBLE)available_slots; - NETDATA_DOUBLE percent_delta = g->percent - percent_to_use; - - NETDATA_DOUBLE percent_interpolation_slot = 0.0; - NETDATA_DOUBLE percent_last_slot = 0.0; - if(percent_delta > 0.0) { - NETDATA_DOUBLE percent_to_use_plus_1_slot = (NETDATA_DOUBLE)(slots_to_use + 1) / (NETDATA_DOUBLE)available_slots; - NETDATA_DOUBLE percent_1slot = percent_to_use_plus_1_slot - percent_to_use; - - percent_interpolation_slot = percent_delta / percent_1slot; - percent_last_slot = 1 - percent_interpolation_slot; - } - - int start_slot, stop_slot, step, last_slot, interpolation_slot; - if(min >= 0.0 && max >= 0.0) { - start_slot = 0; - stop_slot = start_slot + (int)slots_to_use; - last_slot = stop_slot - 1; - interpolation_slot = stop_slot; - step = 1; - } - else { - start_slot = (int)available_slots - 1; - stop_slot = start_slot - (int)slots_to_use; - last_slot = stop_slot + 1; - interpolation_slot = stop_slot; - step = -1; - } - - value = 0.0; - for(int slot = start_slot; slot != stop_slot ; slot += step) - value += g->series[slot]; - - size_t counted = slots_to_use; - if(percent_interpolation_slot > 0.0 && interpolation_slot >= 0 && interpolation_slot < (int)available_slots) { - value += g->series[interpolation_slot] * percent_interpolation_slot; - value += g->series[last_slot] * percent_last_slot; - counted++; - } - - value = value / (NETDATA_DOUBLE)counted; - } - else - value = min; - } - - if(unlikely(!netdata_double_isnumber(value))) { - value = 0.0; - *rrdr_value_options_ptr |= RRDR_VALUE_EMPTY; - } - - //log_series_to_stderr(g->series, g->next_pos, value, "percentile"); - - g->next_pos = 0; - - return value; -} - -#endif //NETDATA_API_QUERIES_PERCENTILE_H -- cgit v1.2.3