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Bug ID: JDK-6791672 enable 1G and larger pages on solaris
JDK-6791672 : enable 1G and larger pages on solaris

Details
Type:
Enhancement
Submit Date:
2009-01-08
Status:
Closed
Updated Date:
2011-11-25
Project Name:
JDK
Resolved Date:
2011-11-25
Component:
hotspot
OS:
generic,solaris_nevada
Sub-Component:
runtime
CPU:
x86,generic
Priority:
P3
Resolution:
Fixed
Affected Versions:
hs11
Fixed Versions:
hs22 (b02)

Related Reports
Backport:
Backport:

Sub Tasks

Description
HotSpot does not use 1G pages on amd processors that support them when running solaris.  They should be used when appropriate to improve performance.
The Intel teams says:
'We received the JVM hotspot binary that support 1GB page size, very quick run of SJBB shows above 1.10x speedup!'

John, Can you please provide a target release & build?  thanks.

                                    

Comments
EVALUATION

Detect 1G pages on amd processors running solaris and use them when appropriate.  See comments.
                                     
2009-01-08
EVALUATION

http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/24cee90e9453
                                     
2011-08-17
EVALUATION

http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/24cee90e9453
                                     
2011-08-19
EVALUATION

http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/24cee90e9453
                                     
2011-08-23
EVALUATION

See main CR
                                     
2011-09-12



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