From: Vladimír Čunát <vladimir.cunat@nic.cz>
Date: Mon, 20 May 2024 11:32:45 +0000 (+0200)
Subject: modules/stats: add answer.sum_ms metric
X-Git-Tag: v5.7.3~2^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea78253482d802c2464c98c030d37c0248c7f59b;p=thirdparty%2Fknot-resolver.git

modules/stats: add answer.sum_ms metric

(cherry picked from commit 44df5dd0d0fedfae390e7137572bcb14270e4d48)
---

diff --git a/modules/stats/README.rst b/modules/stats/README.rst
index 7d423aa8a..014c9f06f 100644
--- a/modules/stats/README.rst
+++ b/modules/stats/README.rst
@@ -89,6 +89,8 @@ Built-in counters keep track of number of queries and answers matching specific
 +-----------------+----------------------------------+
 | answer.slow     | completed in more than 1500ms    |
 +-----------------+----------------------------------+
+| answer.sum_ms   | sum of all latencies in ms       |
++-----------------+----------------------------------+
 
 +-----------------+----------------------------------+
 | **Answer flags**                                   |
diff --git a/modules/stats/stats.c b/modules/stats/stats.c
index 129023f83..c93401cf5 100644
--- a/modules/stats/stats.c
+++ b/modules/stats/stats.c
@@ -42,6 +42,7 @@
 	X(answer,total) X(answer,noerror) X(answer,nodata) X(answer,nxdomain) X(answer,servfail) \
 	X(answer,cached) X(answer,1ms) X(answer,10ms) X(answer,50ms) X(answer,100ms) \
 	X(answer,250ms) X(answer,500ms) X(answer,1000ms) X(answer,1500ms) X(answer,slow) \
+	X(answer,sum_ms) \
 	X(answer,aa) X(answer,tc) X(answer,rd) X(answer,ra) X(answer, ad) X(answer,cd) \
 	X(answer,edns0) X(answer,do) \
 	X(query,edns) X(query,dnssec) \
@@ -220,6 +221,7 @@ static int collect(kr_layer_t *ctx)
 		/* Histogram of answer latency. */
 		struct kr_query *first = rplan->resolved.at[0];
 		uint64_t elapsed = kr_now() - first->timestamp_mono;
+		stat_const_add(data, metric_answer_sum_ms, elapsed);
 		if (elapsed <= 1) {
 			stat_const_add(data, metric_answer_1ms, 1);
 		} else if (elapsed <= 10) {