Hi Niall,
can you pls. elaborate about test you're running. You use some simple
EchoFilter or HTTP based one?
Thank you.
WBR,
Alexey.
>
> First of all, great project. I have been watching with interest for
> a long time now. I have always downloaded the latest, and with 1.9.x
> I have found Grizzly in a very stable state. However, I am a little
> ignorant to the strategies Grizzly uses under load. I know they
> exist, including changing from persistent connections to connection
> close under load. Given this I have a question. I myself write an
> open source NIO server, and have paid particular attention to
> performance. With 1.9.x I have been able to sustain a large test on
> Grizzly comparing it to Simple (http://www.simpleframework.org/).
>
>
> In my performance tests I am particularly interested in latency. I
> have found Grizzly has really great performance during the initial
> stages of the test. However, although there is very little latency
> deviation during the test and throughput is maintained it seems to
> slow up a bit after about 10,000 requests. I would assume due to
> strategy change??
>
> For example, here are two runs I have made. Grizzly shows
> exceptional performance up to about 10,000, but looses out badly to
> Simple in a sustained test of 1,000,000. It comes out 50% or so
> slower. Perhaps it peaks early. Before I publish this I want to
> ensure the tests are fair? Is there something I need to do to tune
> the performance? Here is what I see.
>
> Throughput:
> http://www.simpleframework.org/performance/grizzly/run1/ScalabilityApacheBench.png
> http://www.simpleframework.org/performance/grizzly/run2/ScalabilityApacheBench.png
>
> Latency:
> http://www.simpleframework.org/performance/grizzly/run1/LatencyApacheBench.png
> http://www.simpleframework.org/performance/grizzly/run2/LatencyApacheBench.png
>
> Criteria:
> http://www.simpleframework.org/performance/grizzly/README
>
> Do I need to tune the server somehow?
>
> Thanks,
> Niall
>
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