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MXS-1823 Replace meaningless eventq info with meaningful

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The evq_length file held the returned number of descriptors from
the last epoll_wait() call. As such it is highly temporal and not
particularly meaningful.

That has now been removed and the instead the average number of
returned descriptors is maintained. That information changes slowly
and thus carries some meaning.
This commit is contained in:
Johan Wikman
2018-06-28 11:56:55 +03:00
parent d339b89990
commit c89bdb9626
6 changed files with 28 additions and 13 deletions
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6
server/modules/routing/maxinfo/maxinfo_exec.cc
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@ -1057,9 +1057,9 @@ maxinfo_accept_events()
* Interface to poll stats for event queue length
*/
static int64_t
maxinfo_event_queue_length()
maxinfo_avg_event_queue_length()
{
return poll_get_stat(POLL_STAT_EVQ_LEN);
return poll_get_stat(POLL_STAT_EVQ_AVG);
}
/**
@ -1115,7 +1115,7 @@ static struct
{ "Hangup_events", VT_INT, (STATSFUNC)maxinfo_hangup_events },
{ "Error_events", VT_INT, (STATSFUNC)maxinfo_error_events },
{ "Accept_events", VT_INT, (STATSFUNC)maxinfo_accept_events },
{ "Event_queue_length", VT_INT, (STATSFUNC)maxinfo_event_queue_length },
{ "Avg_event_queue_length", VT_INT, (STATSFUNC)maxinfo_avg_event_queue_length },
{ "Max_event_queue_length", VT_INT, (STATSFUNC)maxinfo_max_event_queue_length },
{ "Max_event_queue_time", VT_INT, (STATSFUNC)maxinfo_max_event_queue_time },
{ "Max_event_execution_time", VT_INT, (STATSFUNC)maxinfo_max_event_exec_time },