nginx performance with aritificial latency - help?

Maxim Dounin mdounin at
Fri Nov 21 20:07:15 UTC 2014


On Fri, Nov 21, 2014 at 01:33:43PM -0600, Jacob Burkamper wrote:

> This has been a bit of a learning experience for me, and as such I am not
> currently too well versed in tweaking the Linux kernel's TCP code. However,
> if the buffers were incorrect, I would expect to see dropped packets,
> correct? I took a packet capture of a simple ApacheBench test exhibiting
> the problem, but I couldn't find any evidence of dropped packets anywhere.

AFAIR, Linux networking code starts to use smaller socket buffers at some 
point, so it's quite possible that you won't see any errors.

> Even so, I'm willing to try changes. I don't suppose you could suggest some
> improvements or point me in the direction of good reading? I'd appreciate
> it.

Something like "linux network buffers tuning" gives reasonable 
results when googled.

Maxim Dounin

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