Did you try it on a new instance of the same size?

At my work we occasionally see EC2 instances start getting really poor
performance.

When we replace them with a new instance (same instance type) performance
comes back.

On Mon, Feb 19, 2018 at 5:30 PM, Mirek Suk <mira.su...@gmail.com> wrote:

> Hi everyone.
>
> AKKA 2.5.9 / HTTP 10.0.11
>
> As part of prototyping architecture, I ran some benchmarks (including
> http) few months ago.
> A simple hello world (request handler is completed with result
> immediately) had nice performance ~2.7m requests/minute. with 1,6m r/m when
> response included ask to sharded actor.
>
> Recently I re-did those benchmarks to find out around ~9x performance drop
> on original test system.
> Rolled prototype back to point of original test with similar result.
> Built scala http sample with similar result.
> Reinstalled JVM with similar result.
> Randomly got performance back, until system restart (yeah like what ?)
>
> On EC2-T2.medium I can do ~7k req/s to "hello world" page with 100% CPU
> usage (2 cores).
> No akka.http configuration is changed and system does no background
> processing.
> Default dispatcher is unchanged (only due to clustering throughput = 10).
>
> Is this kind of performance expected ?
> Is there something I can try ?
>
> Thanks,
> M.
>
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