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6962589: remove breadth first scanning code from parallel gc

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Remove the breadth-first copying order from ParallelScavenge and use depth-first by default.

Reviewed-by: jcoomes, ysr, johnc
This commit is contained in:
Antonios Printezis 2010-07-22 10:27:41 -04:00
parent 3a2b2b4fd8
commit 38ab95c64b
30 changed files with 63 additions and 541 deletions
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2
hotspot/src/share/vm/runtime/arguments.cpp
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@ -184,6 +184,8 @@ static ObsoleteFlag obsolete_jvm_flags[] = {
{ "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) },
{ "DefaultInitialRAMFraction",
JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) },
{ "UseDepthFirstScavengeOrder",
JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) },
{ NULL, JDK_Version(0), JDK_Version(0) }
};

4
hotspot/src/share/vm/runtime/globals.hpp
View file

@ -3088,10 +3088,6 @@ class CommandLineFlags {
\
product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
\
product(bool, UseDepthFirstScavengeOrder, true, \
"true: the scavenge order will be depth-first, " \
"false: the scavenge order will be breadth-first") \
\
product(bool, PSChunkLargeArrays, true, \
"true: process large arrays in chunks") \
\