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Date: Tue, 25 Nov 2014 10:06:34 +0100
From: Max Reitz <mreitz@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH 0/2] tests: Add check-block to "make check"
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To: Markus Armbruster <armbru@redhat.com>, Fam Zheng <famz@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, =?ISO-8859-15?Q?Andreas_F=E4rber?= <afaerber@suse.de>

On 2014-11-25 at 08:30, Markus Armbruster wrote:
> Markus Armbruster <armbru@redhat.com> writes:
>
>> Fam Zheng <famz@redhat.com> writes:
>>
>>> qemu-iotests contains useful tests that have a nice coverage of block layer
>>> code. Adding check-block (which calls tests/qemu-iotests-quick.sh) to "make
>>> check" is good for developers' self-testing.
>>>
>>> With the first patch, this set takes a half minute on my laptop. If
>>> "-j" option
>>> is used, it only takes a few more seconds than what we have now.
>> Different data point: elderly machine, spinning rust, /tmp is tmpfs, no
>> -j: elapsed time increases from ~2 to ~3 minutes.
> I'm very much in favour of actually running the tests we have.
>
> Running all the block tests for all the formats would be too slow, and
> that's why you run just the "quick" group, and only for qcow2.  Quick
> enough?
>
> Any ideas on speeding it up further?  Trimming image sizes, perhaps?
>
> What are the slowest tests in the quick group?  Why are they slow?  How
> are tests selected for the quick group anyway?

Last time I updated the associations it was "Whatever runs in under five 
seconds on my HDD".

Max