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Re: [libvirt] PATCH: Parallelize OOM testing



On Thu, Jul 03, 2008 at 02:41:33PM +0100, Daniel P. Berrange wrote:
> The OOM testing takes a long time to run. Add in valgrind, and it takes a
> very very very long time to run. My dev box has 8 cpus though and it'd be
> nice to use all 8 rather than just 1 to cut the time by a factor of 8. So
> this patch tweaks the control harness for the OOM testrig so that it can
> fork off multiple worker processes. Each worker is assigned a number from
> 1 -> n, and will be responsible for test all allocations failures divisible
> by their number. 
> 
> By default it still runs single process, but if you set VIR_TEST_MP=1 then
> we use sysconf() to get the actual number of online CPUs and fork off one
> worker per CPU.
> 
> eg, so to run the OOM testing with valgrind, parallelized
> 
>   $ VIR_TEST_MP=1 VIR_TEST_OOM=1 make valgrind
> 
> Or to run a test directly
> 
>   $ VIR_TEST_MP=1 VIR_TEST_OOM=1 valgrind --leak-check=full ./xmconfigtest

  haha, sure, go for it :-) ! +1

Daniel

-- 
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Daniel Veillard      | virtualization library  http://libvirt.org/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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