P4
The following is from a run of SPECjvm98 with a 64-bit fastdebug JVM (jdk7-b24) on a machine w/28G of RAM:
[GC [PSYoungGen: 28418K->480K(1888448K)] 30878K->2939K(2195648K), 23.4082886 secs] [Times: user=23.40 sys=0.04, real=23.41 secs]
23 secs is way too long to copy the 480K of data that survives in the young gen.
[GC [PSYoungGen: 28418K->480K(1888448K)] 30878K->2939K(2195648K), 23.4082886 secs] [Times: user=23.40 sys=0.04, real=23.41 secs]
23 secs is way too long to copy the 480K of data that survives in the young gen.
- relates to
-
JDK-6672698 mangle_unused_area() should not remangle the entire heap at each collection.
-
- Resolved
-