performance benchmarking

[Trustin Lee (이희승)]

Thanks for the heads up. I am going to perform some performance tests
for Netty HTTP codec before 3.2.0.GA is out.  I will revisit this
issue definitely at that time.  Please feel free to post your findings
so that I can write better test code.

Regards
— Trustin Lee, http://gleamynode.net/



On Mon, Nov 9, 2009 at 1:16 PM, rajks <rajks at hotmail.com> wrote:
>
> Hi,
>
> I am using on linux with 8 cores
>   1. The Http file server example
>
>   2. "httperf" benchmarking tool from HP labs -
> http://www.hpl.hp.com/research/linux/httperf/
>
>       I had to temporarily change the FD_SETSIZE to higher number 65536 to
> allow httperf to compile with higher fd set size, otherwise the default is
> 1024.
>       /usr/include/bits/typesizes.h:#define __FD_SETSIZE  65536
>
>   3. "autobench" perl wrapper for httperf  -
> http://www.xenoclast.org/autobench/
>
>       Autobench runs httperf a number of times against each host,
> increasing the number of requested connections per second on each iteration,
> and extracts the significant data from the httperf output, delivering a CSV
> or TSV format file which can be imported directly into a spreadsheet for
> analysis/graphing.
>
>
> I ran my tests with autobench with start rate of 10 r/s to 100 r/s at step
> rate of 10 r/s for each test at 120 secs period on a static file of 500k
> size.  The req rate, conn rate and reply rate typically should be same or
> close up to some threshold. But here at request rate 20 r/s the stats are
> deviating. When I try the same with say the NGINX/Lighttpd on same static
> files the stats are consistent upto 60 r/s before the saturation.
>
> Also with netty when lots of connections are transferring data, every new
> connection from another machine takes a lot of time and transfer time of
> body also takes a lot of time.
>
> The transfer time of body reported by httperf also increases to a higher
> number between 10 r/s and 20 r/s test.
>
> Is there something I should be tuning in netty to have a consistent scaling
> ?
>
> Has somebody used httperf to benchmark netty apps and how they fixed their
> netty apps to work better ?
>
> Thanks
> Raj
>
> --
> View this message in context: http://n2.nabble.com/performance-benchmarking-tp3971150p3971150.html
> Sent from the Netty User Group mailing list archive at Nabble.com.
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