Mercurial > jdk8-mips64-public > hotspot / annotate
README@569333e03a95 (annotated)
README
Wed, 19 Oct 2016 15:22:23 +0800
- author
- aoqi
- date
- Wed, 19 Oct 2016 15:22:23 +0800
- changeset 137
- 569333e03a95
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
#4659 C2: Fixed a performance bug, causing many unlock operations to go through slow path.
ObjectMonitor::owner_offset_in_bytes is a pointer to owning thread.
$ stress -c 100 -i 10
$ time java SSLEngineDeadlock
Before the patch:
real 0m29.566s
user 0m38.156s
sys 0m1.590s
After the patch:
real 0m26.213s
user 0m34.996s
sys 0m1.668s
The improvement is nearly 13%.
| 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 |
