Request for approval: JDK-8073108 "Use x86 and SPARC CPU instructions for GHASH acceleration"
Yuri Gaevsky
ygaevsky at azul.com
Fri Sep 27 14:50:38 UTC 2019
Hello,
Please approve backport of JDK-8073108 "Use x86 and SPARC CPU instructions for GHASH acceleration" to jdk8u.
Bug:
https://bugs.openjdk.java.net/browse/JDK-8073108
JDK9 review thread:
http://mail.openjdk.java.net/pipermail/hotspot-dev/2015-February/017178.html
Changesets:
http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/ce0c612ea443
http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/1e10709d34af
Webrevs:
http://cr.openjdk.java.net/~ygaevsky/8073108.8u/webrev.hotspot/
http://cr.openjdk.java.net/~ygaevsky/8073108.8u/webrev.jdk/
The original changes for jdk9 do not apply cleanly to jdk8u codebase
due to slightly different file layouts and absence of aarch64 platform.
Testing:
windows-i586: ( known failures due to https://bugs.openjdk.java.net/browse/JDK-8130341 (work in progress))
windows-x64:
linux-x64:
JTREG tests:
(jdk8u) hotspot/test/compiler/7184394/
(jdk8u) jdk/test/com/sun/crypto/provider/Cipher/AES/
(also checked the output from TestAESMain for performance improvements w/ -XX:+UseGHASHIntrinsics)
build for PowerPC:
checked output for -XX:+UseGHASHIntrinsics ("GHASH intrinsics are not available on this CPU")
build for Solaris-sparcv9:
no JTREG tests were run because the available sparc machine doesn't support VIS3 instruction set,
so just checked output for -XX:+UseGHASHIntrinsics ("GHASH intrinsics require VIS3 insructions
support. Intriniscs will be disabled").
It would be great if someone could check the real intrinsic code on the appropriate
solaris-sparc (SPARC T4?) hardware.
Thank you,
Yuri Gaevsky
Azul Systems, Inc.
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