JDK-8302143 : Speed up UnsafeIntrinsicsTest.java
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 21
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2023-02-09
  • Updated: 2023-02-10
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tbdUnresolved
Related Reports
Relates :  
JDK-8295561 - Review running times of hotspot compiler tier1 tests
Description
https://github.com/openjdk/jdk/blob/master/test/hotspot/jtreg/compiler/gcbarriers/UnsafeIntrinsicsTest.java

Z and Shenandoah runs both take about 25 sec each, so a total of 50sec. This is one of the slowest tests in tier1.

compiler/gcbarriers/UnsafeIntrinsicsTest_Z.jtr 24278
compiler/gcbarriers/UnsafeIntrinsicsTest_Shenandoah.jtr 23412

It seems that it runs 5 subtests, and that all of them are supposed to take 4 seconds.
This would therefore take at least 20sec.

Is this justified? Could we do it in fewer seconds?
If we need to keep it as is, can we move it to a higher tier?

We can split the 5 subtasks into separate run statements, at least this makes it run in parallel.
Probably moving it as high as tier5 could be ok.