Integrated: 8272970: Parallelize runtime/InvocationTests/

[Aleksey Shipilev]

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`.

This pull request has now been integrated.

Changeset: 6cfe3142
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/6cfe314262dacd6ca1a74c000d045b1cabd374db
Stats:     263 lines in 6 files changed: 215 ins; 25 del; 23 mod

8272970: Parallelize runtime/InvocationTests/

Reviewed-by: dholmes, iignatyev

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

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