6976350: G1: deal with fragmentation while copying objects during GC
Summary: Create G1ParGCAllocBufferContainer to contain two buffers instead of previously using one buffer, in order to hold the first priority buffer longer. Thus, when some large objects hits the value of free space left in the first priority buffer it has an alternative to fit in the second priority buffer while the first priority buffer is given more chances to try allocating smaller objects. Overall, it will improve heap space efficiency.
Reviewed-by: johnc, jmasa, brutisso
Contributed-by: tamao <tao.mao@oracle.com>
author |
tamao |
date |
Mon, 03 Jun 2013 14:37:13 -0700 |
parents |
a61af66fc99e |
children |
|
rev |
line source |
0
|
1 README:
|
|
2 This file should be located at the top of the hotspot Mercurial repository.
|
|
3
|
|
4 See http://openjdk.java.net/ for more information about the OpenJDK.
|
|
5
|
|
6 See ../README-builds.html for complete details on build machine requirements.
|
|
7
|
|
8 Simple Build Instructions:
|
|
9
|
|
10 cd make && gnumake
|
|
11
|
|
12 The files that will be imported into the jdk build will be in the "build"
|
|
13 directory.
|
|
14
|