From c69cb8cc094cc916adbc516b09e944cd3d137c01 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 13:08:07 +0200 Subject: Adding upstream version 1.29.3. Signed-off-by: Daniel Baumann --- web/api/queries/incremental_sum/Makefile.am | 8 +++ web/api/queries/incremental_sum/README.md | 41 ++++++++++++++ web/api/queries/incremental_sum/incremental_sum.c | 69 +++++++++++++++++++++++ web/api/queries/incremental_sum/incremental_sum.h | 15 +++++ 4 files changed, 133 insertions(+) create mode 100644 web/api/queries/incremental_sum/Makefile.am create mode 100644 web/api/queries/incremental_sum/README.md create mode 100644 web/api/queries/incremental_sum/incremental_sum.c create mode 100644 web/api/queries/incremental_sum/incremental_sum.h (limited to 'web/api/queries/incremental_sum') diff --git a/web/api/queries/incremental_sum/Makefile.am b/web/api/queries/incremental_sum/Makefile.am new file mode 100644 index 0000000..161784b --- /dev/null +++ b/web/api/queries/incremental_sum/Makefile.am @@ -0,0 +1,8 @@ +# 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/incremental_sum/README.md b/web/api/queries/incremental_sum/README.md new file mode 100644 index 0000000..e5f3dfc --- /dev/null +++ b/web/api/queries/incremental_sum/README.md @@ -0,0 +1,41 @@ + + +# Incremental Sum (`incremental_sum`) + +This modules finds the incremental sum of a period, which `last value - first value`. + +The result may be positive (rising) or negative (falling) depending on the first and last values. + +## how to use + +Use it in alarms like this: + +``` + alarm: my_alarm + on: my_chart +lookup: incremental_sum -1m unaligned of my_dimension + warn: $this > 1000 +``` + +`incremental_sum` 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=incremental_sum` in the URL. + +## 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=max&after=-60&label=max) +- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=incremental_sum&after=-60&label=incremental+sum&value_color=orange) + +## References + +- none + +[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fweb%2Fapi%2Fqueries%2Fincremental_sum%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>) diff --git a/web/api/queries/incremental_sum/incremental_sum.c b/web/api/queries/incremental_sum/incremental_sum.c new file mode 100644 index 0000000..131d85d --- /dev/null +++ b/web/api/queries/incremental_sum/incremental_sum.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "incremental_sum.h" + +// ---------------------------------------------------------------------------- +// incremental sum + +struct grouping_incremental_sum { + calculated_number first; + calculated_number last; + size_t count; +}; + +void *grouping_create_incremental_sum(RRDR *r) { + (void)r; + return callocz(1, sizeof(struct grouping_incremental_sum)); +} + +// resets when switches dimensions +// so, clear everything to restart +void grouping_reset_incremental_sum(RRDR *r) { + struct grouping_incremental_sum *g = (struct grouping_incremental_sum *)r->internal.grouping_data; + g->first = 0; + g->last = 0; + g->count = 0; +} + +void grouping_free_incremental_sum(RRDR *r) { + freez(r->internal.grouping_data); + r->internal.grouping_data = NULL; +} + +void grouping_add_incremental_sum(RRDR *r, calculated_number value) { + if(!isnan(value)) { + struct grouping_incremental_sum *g = (struct grouping_incremental_sum *)r->internal.grouping_data; + + if(unlikely(!g->count)) { + g->first = value; + g->count++; + } + else { + g->last = value; + g->count++; + } + } +} + +calculated_number grouping_flush_incremental_sum(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) { + struct grouping_incremental_sum *g = (struct grouping_incremental_sum *)r->internal.grouping_data; + + calculated_number value; + + if(unlikely(!g->count)) { + value = 0.0; + *rrdr_value_options_ptr |= RRDR_VALUE_EMPTY; + } + else if(unlikely(g->count == 1)) { + value = 0.0; + } + else { + value = g->last - g->first; + } + + g->first = 0.0; + g->last = 0.0; + g->count = 0; + + return value; +} diff --git a/web/api/queries/incremental_sum/incremental_sum.h b/web/api/queries/incremental_sum/incremental_sum.h new file mode 100644 index 0000000..990a2ac --- /dev/null +++ b/web/api/queries/incremental_sum/incremental_sum.h @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#ifndef NETDATA_API_QUERY_INCREMENTAL_SUM_H +#define NETDATA_API_QUERY_INCREMENTAL_SUM_H + +#include "../query.h" +#include "../rrdr.h" + +extern void *grouping_create_incremental_sum(RRDR *r); +extern void grouping_reset_incremental_sum(RRDR *r); +extern void grouping_free_incremental_sum(RRDR *r); +extern void grouping_add_incremental_sum(RRDR *r, calculated_number value); +extern calculated_number grouping_flush_incremental_sum(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr); + +#endif //NETDATA_API_QUERY_INCREMENTAL_SUM_H -- cgit v1.2.3