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Re: [Qemu-devel] [kvm-unit-tests PATCH 0/2] run_tests: support concurren

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [kvm-unit-tests PATCH 0/2] run_tests: support concurrent test execution
Date: Mon, 2 Jan 2017 18:07:56 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1

On 01/01/2017 11:34, Peter Xu wrote:
> run_tests.sh is getting slower. Maybe it's time to let it run faster.
> An obvious issue is that, we were running the tests sequentially in
> the past.
> This series provides another new "-j" parameter. "-j 8" means we run
> the tests on 8 task queues. That'll fasten the script a lot. A very
> quick test of mine shows 3x speed boost with 8 task queues.
> Most of the changes are in scripts/tash.bash of patch 2, which
> implemented the main logic for task managements. Please see commit
> message for more information.
> I did a quick "make standalone" test to make sure this series won't
> break it. However I am not sure whether it'll break other thing that I
> don't know...

Would it work if run_tests.sh wrote a Makefile for all the tests (with
phony targets only), and then simply ran "make -f Makefile.tmp -jN"?



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