My team works on optimization of Java workloads (Cassandra, Kafka, OpenSearch and benchmarks), through the JVM, down to the cpu @intel. Tweets are my own.
Massachusetts, USA
Joined April 2008
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drwhite retweeted
"Re-write the IndexOf code without the use of the pcmpestri instruction, only using AVX2 instructions. This change accelerates String.IndexOf on average 1.3x for AVX2"
github.com/openjdk/jdk/pull/…
drwhite retweeted
m7i deep dive: Run your Java workloads optimized in AWS xitter.cf/i/broadcasts/1ypKdkVYX…
Intel's JPE group has been a long-standing contributor to the #OpenJDK project.
Now hiring! Looking for people excited to work on Java performance and implementation all the way from micro-services to micro-architecture.
linkedin.com/jobs/view/27660…
drwhite retweeted
#NewBlog: Gopal Hegde, VP & GM of the Server Processor BU at #Marvell, shares the continued progress on the Arm based ThunderX platform & the latest updates on the third generation server processor, #ThunderX3 #ThunderX #DataCenter #HPC @Arm Learn More: bit.ly/2TWzSJu
I’m @RedHatSummit this week, working the @arm/@marvellsemi both in the Expo hall (unless I get a break to see sessions 😀). Drop by if you want to talk about @OpenJDK on #arm64!
drwhite retweeted
Docker Desktop cross building images for both ARM and AMD64 in parallel using latest edge version with buildx. asciinema.org/a/lX54HOoqAaK1…
#ARM #ARM64 #Docker
@Docker @DockerCon
Early performance results on ThunderX2 @Arm processors from @marvellsemi in HPC:
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drwhite retweeted
Six years ago, SPECjbb 2013 was released. Version 1.02 of SPECjbb 2015, adding Java SE 11 support, is now available. Licensees of versions 1.0 and 1.01 receive a complimentary upgrade. ow.ly/PAiN30noDGH #SPEC #Java #JavaSE11 #JavaBenchmark #SPEC30
Just noticed that the JVM option PrintSafepointStatics is missing in JDK 12. Use "-Xlog:safepoint+stats=debug" instead. See javathunderx.blogspot.com/20… for more...
I posted a Cheat Sheet for cpuinfo features on AArch64 (Arm64) on javathunderx.blogspot.com/20… and also on en.wikichip.org.
There's a great "Java on ARM" talk at #CodeOne today at 1pm from @bellsoftware [DEV5048]. These guys work with us @marvellsemi (Cavium) to optimize #OpenJDK on #ARMservers and #ThunderX2. They are not marketers - they fix the bits!
OpenJDK 11 is now out for all platforms for both HotSpot and OpenJ9! Hotspot is available here: buff.ly/2OHTC21 and OpenJ9 is available here: buff.ly/2ybnycp #adoptopenjdk #openj9 #openjdk #java11
New article about Java running on ARM processors, and some of the great work that @bellsoftware has done for @CaviumInc improving #OpenJDK on #ThunderX2! #worksonarm on #arm64! Thanks Aleksei!
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