From: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
To: openembedded-core@lists.openembedded.org
Subject: Re: Confusing Performance Numbers
Date: Wed, 13 Nov 2013 15:02:10 +0100 [thread overview]
Message-ID: <lyppq4z9gd.fsf@ensc-virt.intern.sigma-chemnitz.de> (raw)
In-Reply-To: <1384270308.6460.11.camel@ted> (Richard Purdie's message of "Tue, 12 Nov 2013 15:31:48 +0000")
Richard Purdie
<richard.purdie-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
writes:
> I had some ideas I decided to test out. Specifically:
> Its very hard to figure out what in these tests might be noise and what
> if anything was a real gain (other than the disk usage improvements). I
> suspect the hardlinking patch may be worthwhile, the other two are
> perhaps not useful.
fwiw, we record performance data as part of our normal build process and
it should be possible to compare these statistics. Results are e.g.
https://www.cvg.de/people/ensc/metrics.txt.gz
https://www.cvg.de/people/ensc/metrics.html
(there is much room to improve the visualization; a new colleague just
started to work on it). Relevant changes/classes are
https://www.cvg.de/people/ensc/metrics.py
https://www.cvg.de/people/ensc/elito-metrics.bbclass
https://www.cvg.de/people/ensc/0008-build.py-fire-TaskFailed-with-same-environment-as-Ta.patch
Enrico
prev parent reply other threads:[~2013-11-13 14:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-12 15:31 Confusing Performance Numbers Richard Purdie
2013-11-12 23:33 ` Phil Blundell
2013-11-13 14:02 ` Enrico Scholz [this message]
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