RFR(S): 8166738 - Enable concurrency in Hotspot jtreg testing
erik.joelsson at oracle.com
Tue Sep 27 08:07:43 UTC 2016
Looks good to me.
On 2016-09-26 23:07, Christian Tornqvist wrote:
> Hi everyone,
> Please review this small change that enables concurrency for the
> Hotspot jtreg tests when running them through the make system. Testing
> done so far shows very promising speed ups, both when running locally
> and in JPRT.
> It’ll automatically calculate a sane concurrency number based on the
> number of cores / 2 (with a maximum of 12) and then sets
> MaxRAMFraction=concurrency*4 to make sure we don’t run out of memory.
> The concurrency value can be overridden by setting TEST_JOBS to the
> desired concurrency value.
> On Windows, this change is temporarily commented out since we run into
> the intermittent issue described in JDK-8159799.
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