archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-26 22:34:27 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads

Browse source 
Select number of GC threads dynamically based on heap usage and number of Java threads

Reviewed-by: johnc, ysr, jcoomes
This commit is contained in:
Jon Masamitsu 2011-08-09 10:16:01 -07:00
parent 098ed89645
commit 15070123fa
39 changed files with 1523 additions and 231 deletions
Download patch file Download diff file Expand all files Collapse all files

4
hotspot/src/share/vm/runtime/arguments.cpp
View file

@ -1394,8 +1394,8 @@ void Arguments::set_parallel_gc_flags() {
// If no heap maximum was requested explicitly, use some reasonable fraction
// of the physical memory, up to a maximum of 1GB.
if (UseParallelGC) {
FLAG_SET_ERGO(uintx, ParallelGCThreads,
Abstract_VM_Version::parallel_worker_threads());
FLAG_SET_DEFAULT(ParallelGCThreads,
Abstract_VM_Version::parallel_worker_threads());
// If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the
// SurvivorRatio has been set, reset their default values to SurvivorRatio +