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Bug Database
Bug ID: 6532536
Votes 0
Synopsis Optimize arraycopy stubs for Intel cpus
Category hotspot:compiler2
Reported Against
Release Fixed hs14(b06), 6u14(b01) (Bug ID:2172781) , 7(b39) (Bug ID:2177318)
State 10-Fix Delivered, request for enhancement
Priority: 3-Medium
Related Bugs
Submit Date 08-MAR-2007
Description
 customer  cpus very sensitive to data moves alignment.
Arraycopy stubs have to be fixed to avoid such misalignment
for these hardware.
Posted Date : 2007-03-08 19:32:50.0

SSE2 movdqu nstruction performance was greatly improved on newest Intel's cpus.
Posted Date : 2008-10-15 01:31:33.0
Work Around
N/A
Evaluation
see comment.
Posted Date : 2007-08-24 23:23:45.0

http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/2649e5276dd7
Posted Date : 2008-10-15 01:26:10.0
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