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[BUG] proxy: connection rate limiting was eating lots of CPU

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The rate-limit feature relied on a timer to define how long a frontend
must remain idle. It was not considering the pending connections, so it
was almost always ready to be used again and only the accept's limit was
preventing new connections from coming in. By accounting for the pending
connection, we can compute a correct delay and effectively make the
frontend go idle for that (short) time.
This commit is contained in:
Willy Tarreau 2010-06-07 10:40:48 +02:00
parent 4fe4190278
commit d9bbe17b7f
1 changed files with 1 additions and 1 deletions
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2
src/proxy.c
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@ -485,7 +485,7 @@ void maintain_proxies(int *next)
goto do_block;
if (p->fe_sps_lim &&
(wait = next_event_delay(&p->fe_sess_per_sec, p->fe_sps_lim, 0))) {
(wait = next_event_delay(&p->fe_sess_per_sec, p->fe_sps_lim, 1))) {
/* we're blocking because a limit was reached on the number of
* requests/s on the frontend. We want to re-check ASAP, which
* means in 1 ms before estimated expiration date, because the