RFR: 8272970: Parallelize runtime/InvocationTests/

Igor Ignatyev iignatyev at openjdk.java.net
Tue Aug 31 21:32:47 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`.

LGTM. one nit: it should be possible to reduce clutter by removing `@compile` actions, could you please either do that here or file an RFE? 

PS I wish jtreg had a way not to duplicate all these tags, perhaps w/ some kind of a preprocessor.

-------------

Marked as reviewed by iignatyev (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5250


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