RFR: 8272970: Parallelize runtime/InvocationTests/
dholmes at openjdk.java.net
Thu Aug 26 02:43:25 UTC 2021
On Wed, 25 Aug 2021 11:58:27 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:
> Current runtime/InvocationTests/ are long and serial. They take about half an hour on a modern desktop, mostly using a single CPU. They can be parallelized better, at least on sub-test level. This would be important as [JDK-8272914](https://bugs.openjdk.java.net/browse/JDK-8272914) would start to run them in tier3.
> Sample run times:
> $ time CONF=linux-x86_64-server-fastdebug make run-test TEST=runtime/InvocationTests/
> # Before
> real 32m2.188s
> user 59m12.818s
> sys 0m45.612s
> # After
> real 17m21.110s
> user 63m31.851s
> sys 0m55.391s
> I think we can technically go even deeper, for example parallelising by `packageSet` in the generators themselves, but that would be much more intrusive. I think 17 minutes is already quite good, given other tests running in prospective `hotspot:tier3`.
Marked as reviewed by dholmes (Reviewer).
I can't find any jtreg documentation that indicates that multiple @test entries within a single Java file will be run concurrently. ??
That aside the split you have done seem quite reasonable.
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