What's the correct repository on which to base changes to "jdk"?
Alan.Bateman at oracle.com
Wed May 15 14:43:14 UTC 2013
On 15/05/2013 15:30, David Chase wrote:
> 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?
The core-libs-dev is best for the java.util.zip code.
You can push changes to the zip code via any of the integration forests
but I think it would be best if you used jdk8/tl/jdk as that is the
route for all changes to the "core" libraries.
More information about the core-libs-dev