RFR (S): CR 8005926: (thread) Merge ThreadLocalRandom state into java.lang.Thread

Aleksey Shipilev aleksey.shipilev at oracle.com
Wed Jan 16 10:37:50 UTC 2013

On 01/16/2013 01:23 PM, Peter Levart wrote:
> The test I used is simple:
> https://raw.github.com/plevart/lambda-hacks/master/jdk-test/src/org/openjdk/tests/java/util/concurrent/atomic/RandomTest.java

OK, you can't get serious with that test. The failures visible at the
surface are:
  - dead-code elimination for parts of nextInt(): you should consume the
  - thread start/stops are not synchronized; there are significant
chances threads are running solo for considerable amount of time.

This should be much easier to write once our microbenchmark harness goes
into OpenJDK; in the mean time, you will need to invest considerably
more time into making this right.


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