W dniu 20.03.2012 17:54, Dave Pigott pisze:
As per Zygmunt's request, adding linaro-validation for discussion.
Dave
Dave Pigott
Validation Engineer
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On 20 Mar 2012, at 14:33, Zygmunt Krynicki wrote:
W dniu 20.03.2012 15:22, Dave Pigott pisze:
Hi,
I think we need to seriously look at allowing a timeout parameter around
"deploy_linaro_image", because vexpress is going to need around 4 hours
to deploy a full desktop, and it seems crazy that we should hard code
that big a timeout into master.py for *all* platforms.
Could we move that to linaro-validation please?
I realise there is an issue as to which part the timeout is applied to
and how it's apportioned, but even if we just allowed to pass through
the whole timeout to each stage it would be better than what we have at
the moment.
I think that we have two general problems with timeouts:
1) We've pulled most of the initial values out of a hat
2) Timeouts are expressions, not constants.
I'm very glad that with our health jobs we're actually looking at the
constants we're using. I'd like to see a more scientific and thorough
approach to this problem:
-> Keep a shared google doc spreadsheet with timeouts for various
actions that we put in our health jobs
-> Track that per board
-> Track the age and cycle count for each SD we purchase and allocate in
the lab
-> Benchmark the SD periodically
Given that data we could turn timeout constants into timeout expressions
that can use the following variables:
$normalized_cpu_time
$average_sd_speed
Having that we could say that, for example: deploy_linaro_image takes
2GB of writes and an 30 minutes of normalized CPU. The expression would
then evaluate to actual values for each test job. We could also track
how average_sd_speed changes over time.
Thanks
ZK
--
Zygmunt Krynicki
Linaro Validation Team
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