hg: hsx/hotspot-gc/hotspot: 2 new changesets
stefan.karlsson at oracle.com
stefan.karlsson at oracle.com
Sat Oct 5 18:57:17 UTC 2013
Changeset: 263f2c796d6c
Author: stefank
Date: 2013-10-05 10:14 +0200
URL: http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/263f2c796d6c
8024838: Significant slowdown due to transparent huge pages
Summary: Don't turn on transparent huge pages (-XX:+UseTransparentHugePages) unless explicitly specified on the command line. This has the effect that large pages are never turned on Linux unless the user has explicitly enabled any of the large pages flags: -XX:+UseLargePages, -XX:+UseTransparentHugePages, -XX:+UseHugeTLBFS, and -XX:+UseSHM.
Reviewed-by: jwilhelm, tschatzl, brutisso
! src/os/linux/vm/globals_linux.hpp
! src/os/linux/vm/os_linux.cpp
+ test/runtime/memory/LargePages/TestLargePagesFlags.java
Changeset: 8618e0d7735b
Author: stefank
Date: 2013-10-05 08:01 -0700
URL: http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/8618e0d7735b
Merge
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