Willy Tarreau 4e9df2737d BUG/MEDIUM: checks: don't needlessly take the server lock in health_adjust() ...

The server lock was taken preventively for anything in health_adjust(),
including the static config checks needed to detect that the lock was not
needed, while the function is always called on the response path to update
a server's status. This was responsible for huge contention causing a
performance drop of about 17% on 16 threads. Let's move the lock only
where it should be, i.e. inside the function around the critical sections
only. By doing this, a 16-thread process jumped back from 575 to 675 krps.

This should be backported to 2.3 as the situation degraded there, and
maybe later to 2.2.

2021-02-18 10:06:45 +01:00

..

haproxy

BUG/MEDIUM: checks: don't needlessly take the server lock in health_adjust()

2021-02-18 10:06:45 +01:00

import

BUG/MINOR: xxhash: make sure armv6 uses memcpy()

2021-02-04 17:14:58 +01:00