Fwd: nginx performance on Amazon EC2
rakan.alhneiti at gmail.com
Fri Feb 22 15:10:49 UTC 2013
Since my requests according to my profiling take around 0.065 seconds to
execute. I am really unsure of what happens after the response leaves the
django side and uwsgi starts handling it with nginx. Is there a way to do
some profiling at uwsgi or nginx level?
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On Fri, Feb 22, 2013 at 9:54 AM, mex <nginx-forum at nginx.us> wrote:
> now you **only** need to find the bootleneck :)
> maybe its better to run ab from a machine in the same network
> instead of running on the same machine, esp. with one core.
> Rakan Alhneiti Wrote:
> > Hello,
> > Thank you all for your support.
> > *Mex: *
> > *1) is the setup of your vmware similar to you ec2 - instance? i talk
> > esp.
> > about RAM/CPU-power here.*
> > Yes, i've setup the vmware machine to be 1.7 G in ram and 1 core just
> > like
> > the small ec2 instance.
> > *2) do you have a monitoring on your instances, checking for
> > load/ram-zusage, iowait etc?*
> > What goes on here is that my CPU usage per uwsgi process is around 13%
> > and
> > server load starts to get much higher. MySQL operations usually take
> > 6-8 ms
> > which are optimized and not slowing the app down. once the load starts
> > rising, the app slows down and more connections start to fail.
> > *Jan-Philip:*
> > *Do you run the benchmark program on the same virtual machine as the
> > web
> > stack?? For yielding conclusive results, you certainly don't want to
> > make
> > ab, nginx, and all other entities involved compete for the same CPU.
> > *Yes, on both machines i try to run ab on the same machine. So that i
> > am
> > profiling the app from within taking away any network latency that can
> > affect the response rate. I tried running the test from a linode
> > machine to
> > an EC2 instance... same results.
> > Again, thank you for your support, i am persevering on this until i
> > find
> > out what the issue is.
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