Mercurial > jdk8-mips64-public > hotspot / annotate
README@e7d0505c8a30 (annotated)
README
Fri, 10 Oct 2014 15:51:58 +0200
- author
- tschatzl
- date
- Fri, 10 Oct 2014 15:51:58 +0200
- changeset 7257
- e7d0505c8a30
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
8059758: Footprint regressions with JDK-8038423
Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything.
Reviewed-by: jwilhelm, brutisso
| aoqi@0 | 1 | README: |
| aoqi@0 | 2 | This file should be located at the top of the hotspot Mercurial repository. |
| aoqi@0 | 3 | |
| aoqi@0 | 4 | See http://openjdk.java.net/ for more information about the OpenJDK. |
| aoqi@0 | 5 | |
| aoqi@0 | 6 | See ../README-builds.html for complete details on build machine requirements. |
| aoqi@0 | 7 | |
| aoqi@0 | 8 | Simple Build Instructions: |
| aoqi@0 | 9 | |
| aoqi@0 | 10 | cd make && gnumake |
| aoqi@0 | 11 | |
| aoqi@0 | 12 | The files that will be imported into the jdk build will be in the "build" |
| aoqi@0 | 13 | directory. |
| aoqi@0 | 14 |
