Hi, On 11/09/2014 09:45 PM, Aleksey Shipilev wrote: > Thread.getName() returns String, and does new String instantiation every > time, because the thread name is stored in char[]. Even though we use a > private String constructor that shares the char[] array without copying > it, this still hurts some use cases (think extra-fast logging). To the > extent some people actually maintain Map<Thread, String> to avoid it. > https://bugs.openjdk.java.net/browse/JDK-8059677 > > Here's the attempt to maintain String instead of char[]: > http://cr.openjdk.java.net/~shade/8059677/webrev.01.jdk/ > http://cr.openjdk.java.net/~shade/8059677/webrev.01.hs/
Updated webrevs: http://cr.openjdk.java.net/~shade/8059677/webrev.02.jdk/ http://cr.openjdk.java.net/~shade/8059677/webrev.02.hs/ This version incorporates feedbacks from Chris, Staffan and David. I think it is very close to what we would like to push. Opinions? Testing: JPRT, jdk/test/java/lang/Thread jtreg, hotspot/test/runtime/ jtreg, vm.quick.testlist, nsk.jvmti.testlist, svc.quick.testlist, vm.tmtools.testlist Thanks, -Aleksey.
