<div dir="ltr">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.<div><br></div><div>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.<br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Nov 21, 2014 at 1:21 PM, Maxim Dounin <span dir="ltr"><<a href="mailto:mdounin@mdounin.ru" target="_blank">mdounin@mdounin.ru</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello!<br>
<br>
On Thu, Nov 20, 2014 at 09:49:36PM -0600, Jacob Burkamper wrote:<br>
<br>
[...]<br>
<span class=""><br>
> Does anyone have any suggestions on how I can solve this? I would have<br>
> expected an increase in the number of connections to yield an increase in<br>
> speed, but this was not the result. It seems with the artificial latency<br>
> nginx is only able to handle approximately 3,000 requests per second, where<br>
> without the latency I saw over 7,000.<br>
<br>
</span>Have you checked your OS limits on network buffers? If there<br>
are not enough buffers or buffers are undersized, this may have<br>
negative effect on bandwidth with increased latency.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Maxim Dounin<br>
<a href="http://nginx.org/" target="_blank">http://nginx.org/</a><br>
<br>
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