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-rw-r--r--web/api/queries/percentile/Makefile.am8
-rw-r--r--web/api/queries/percentile/README.md62
-rw-r--r--web/api/queries/percentile/percentile.c6
-rw-r--r--web/api/queries/percentile/percentile.h172
4 files changed, 0 insertions, 248 deletions
diff --git a/web/api/queries/percentile/Makefile.am b/web/api/queries/percentile/Makefile.am
deleted file mode 100644
index 161784b8f..000000000
--- 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 e0d21ee76..000000000
--- a/web/api/queries/percentile/README.md
+++ /dev/null
@@ -1,62 +0,0 @@
-<!--
-title: "Percentile"
-sidebar_label: "Percentile"
-description: "Use percentile in API queries and health entities to find the 'percentile' value from a sample, eliminating any unwanted spikes in the returned metrics."
-custom_edit_url: https://github.com/netdata/netdata/edit/master/web/api/queries/percentile/README.md
-learn_status: "Published"
-learn_topic_type: "References"
-learn_rel_path: "Developers/Web/Api/Queries"
--->
-
-# 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
-
-- <https://en.wikipedia.org/wiki/Percentile>.
diff --git a/web/api/queries/percentile/percentile.c b/web/api/queries/percentile/percentile.c
deleted file mode 100644
index da3b32696..000000000
--- 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 0532f9d3f..000000000
--- 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
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-04 22:50:58 +0000