Nope :|. I've increased somaxconn to 512 and tcp_max_syn_backlog to 2048, but 
with one process, 1M requests, concurrency 500, I still get a bunch of 
timeouts, and the longest transaction still takes most of the test (eg 32 
seconds out of a test that takes 35).

Any other obvious possibilities?

On Friday, 20 November 2015, 4:12, Willy Tarreau <[email protected]> wrote:



On Thu, Nov 19, 2015 at 07:00:32AM +0000, Thrawn wrote:
> Hmm...I haven't tuned anything (this is just my workstation, not a server).
> /proc/sys/net/core/somaxconn 128
> /proc/sys/net/ipv4/tcp_max_backlog doesn't exist
> 
>  /proc/sys/net/ipv4/tcp_max_syn_backlog512

Yep sorry it's this one.

> I guess those are pretty low for trying to thrash an echo server...

Yes they're low even for 16k/s.

> any recommendations?

Start by multiplying both of them by 4. If nothing improves it doesn't
come from there.


Willy

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