On Thu, 29 Sep 2022 07:21:46 GMT, Serguei Spitsyn <sspit...@openjdk.org> wrote:
> The test SuspendResume fails on linux-aarch64 with timeouts.
> However, it never fails when test timeout is set to a bigger value:
>
> diff --git
> a/test/hotspot/jtreg/serviceability/jvmti/vthread/SuspendResume1/SuspendResume1.java
>
> b/test/hotspot/jtreg/serviceability/jvmti/vthread/SuspendResume1/SuspendResume1.java
> index cd5b8251fce..562f2eae921 100644
> ---
> a/test/hotspot/jtreg/serviceability/jvmti/vthread/SuspendResume1/SuspendResume1.java
> +++
> b/test/hotspot/jtreg/serviceability/jvmti/vthread/SuspendResume1/SuspendResume1.java
> @@ -29,7 +29,7 @@
> * @library /test/lib
> * @compile --enable-preview -source ${jdk.version} SuspendResume1.java
> * @run driver jdk.test.lib.FileInstaller . .
> - * @run main/othervm/native
> + * @run main/othervm/native/timeout=600
> * --enable-preview
> * -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
> * -agentlib:SuspendResume1
>
>
> I'd like to push this as a trivial fix.
>
> Testing: Submitted mach5 test runs on multiple platforms.
I'm not so sure increasing the timeout is the right thing to do. Here are the
results of running 5 times on each of our 5 platforms with
`-XX:TieredStopAtLevel=2"`
macosx-aarch64-debug 22s
windows-x64-debug 23s
windows-x64-debug 23s
macosx-aarch64-debug 23s
macosx-aarch64-debug 24s
macosx-aarch64-debug 24s
windows-x64-debug 24s
macosx-x64-debug 24s
macosx-aarch64-debug 25s
macosx-x64-debug 26s
macosx-x64-debug 26s
macosx-x64-debug 26s
macosx-x64-debug 26s
windows-x64-debug 28s
windows-x64-debug 33s
linux-x64-debug 43s
linux-x64-debug 45s
linux-aarch64-debug 2m 17s
linux-x64-debug 2m 20s
linux-x64-debug 2m 42s
linux-x64-debug 2m 59s
linux-aarch64-debug 3m 22s
linux-aarch64-debug 4m 31s
linux-aarch64-debug 6m 30s
linux-aarch64-debug 9m 22s
The last one was a timeout. So it seems that linux-aarch64 is consistently
slow. linux-x64 is also a bit slow in some cases. It seems it would be worth
understanding these performance differences.
-------------
PR: https://git.openjdk.org/jdk/pull/10480
