[Rock-dev] pocolog optimizations

[Sylvain Joyeux]

Another tidbit of information: decompressing samples is a serious time hog.
Do not use compression if you can afford it AND need the performance.

I did not look into it further myself. I guess that we use a compression
level that is too high.

Sylvain


On Wed, Jun 11, 2014 at 3:18 PM, Sylvain Joyeux <bir.sylvain at gmail.com>
wrote:

> Hey. Given that I already did the work, I thought that someone would like
> to pick it up.
>
> During the pocolog-related discussion (or "bashing", call it however you
> want), I profiled pocolog and found some very low-hanging fruits open for
> optimization. I've published the result as a PR on github
>   https://github.com/rock-core/tools-pocolog/pull/1
>
> This is NOT tested for correctness (in other words, it works on test
> cases, but has not been fully tested). I won't take care of that, so feel
> free to take it and try it. The pull request describes what kind of
> performance enhancement ON POCOLOG you might expect. The rest of the
> tooling staying untouched do NOT assume that you will get the same
> improvement when running e.g. rock-replay
>
> Sylvain
>
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