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| author | Diana Corbacho <diana@rabbitmq.com> | 2017-10-25 08:36:09 +0100 |
|---|---|---|
| committer | Diana Corbacho <diana@rabbitmq.com> | 2017-10-25 08:36:09 +0100 |
| commit | accd6aaf6bbbac378a8acafdfeeef0af539a9f41 (patch) | |
| tree | db666946a9bcf566b171cd9f9211f46b85e610a9 /src | |
| parent | b55f79da5fd50ead74308d8ad3bcf7121dac38c4 (diff) | |
| download | rabbitmq-server-git-accd6aaf6bbbac378a8acafdfeeef0af539a9f41.tar.gz | |
Comment optimisation in format channel stats
[#152240490]
Diffstat (limited to 'src')
| -rw-r--r-- | src/rabbit_channel.erl | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index dae0612e03..c8b497ec9c 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -2008,6 +2008,10 @@ emit_stats(State) -> emit_stats(State, []). emit_stats(State, Extra) -> [{reductions, Red} | Coarse0] = infos(?STATISTICS_KEYS, State), + %% First metric must be `idle_since` (if available), as expected by + %% `rabbit_mgmt_format:format_channel_stats`. This is a performance + %% optimisation that avoids traversing the whole list when only + %% one element has to be formatted. rabbit_core_metrics:channel_stats(self(), Extra ++ Coarse0), rabbit_core_metrics:channel_stats(reductions, self(), Red). |