What's the correct repository on which to base changes to "jdk"?

David Chase david.r.chase at oracle.com
Wed May 15 14:30:56 UTC 2013

The changed files are these:

M src/share/classes/java/util/zip/Adler32.java
M src/share/classes/java/util/zip/CRC32.java
M src/share/classes/sun/misc/VM.java
M src/share/native/java/util/zip/CRC32.c
M test/java/util/zip/TimeChecksum.java
A test/java/util/zip/CRCandAdlerTest.java

This is for a performance RFE filed against "compiler",

JDK-7088419: "Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32 and java.util.zip.Adler32"

The nature of the changes is
1) adding fork-join parallelism for Adler32 and CRC32,
2) handling small cases in Java when that is cheaper than JNI overheads, 
3) on suitable Intel platforms, using a fancy instruction to make CRC go faster.

There's a companion patch for the hotspot side -- the two conspire to pass platform feature information
through a property "sun.zip.clmulSupported".

And to which list should I post the request for reviews?


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