Joachim Breitner mail at
Mon Dec 9 22:54:12 UTC 2013


Am Dienstag, den 10.12.2013, 02:21 +0400 schrieb Alexander Pakhomov:
> Hi.
> Do you do performance testing?
> I would be interested in statistics by release.
> I worked at optimizing compiler at my previous job and we had quite huge amount of performance tests for each commit. When something slowed down we fixed it. It is strange but most of times we found and fixed slowdown.

we have a benchmark suite called nofib, see

Unfortunately, we do not run it automatically for each commit, and this
is unfortunate. In fact, I do spend a relevant fraction of my GHC
hacking time starting nofib runs, manually comparing the results etc.
But of course only when I expect a change (or expect that made a change
that I did not want to do) and more automation would help here. But
automatically running the test suite is more urgent, I’d say :-)


Joachim “nomeata” Breitner
  mail at joachim-breitner.de
  Jabber: nomeata at  • GPG-Key: 0x4743206C
  Debian Developer: nomeata at
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