Le 3 oct. 2015 02:50, "Daren Sefcik" <[email protected]> a écrit :
>
> So after making the changes (somewhat implied by Cyril) I ran apache
bench with 2 concurrent instances of "-n 10000 -c 500 -w -k" and the result
on haproxy stats page is:
>
> pid = 18093 (process #1, nbproc = 1)
> uptime = 0d 2h55m08s
> system limits: memmax = unlimited; ulimit-n = 100043
> maxsock = 100043; maxconn = 50000; maxpipes = 0
> current conns = 2235; current pipes = 0/0; conn rate = 39/sec
> Running tasks: 1/2252; idle = 85 %
>
> and response times from the client are unacceptable, 15-20 seconds or
longer. once the apache bench tests finish and concurrent conns go down to
a few hundred or less the client response times are normal and quick. Not
scientific but during the long wait on the client the browser reports down
in the bottom browser bar "waiting for socket..." or "waiting for proxy
tunnel..."

Hi,
How is the system during stress ? Here are a few things I would have
checked in similar situation.

Is there an accept filter
Is there some kernel messages
Load, swap usage, disk space

During stress :
Is there more sys/interrupt than user cpu usage
Link saturation
Packet lost

Suboptimal firewall rules : replay stress packet filter unloaded.

Regards
Joris
>
> TIA for any further help anyone can provide, I really would like to get
this figured out.

Reply via email to