Re: [yocto] [meta-java] can zero shark be enabled again?
> Am 16.10.2015 um 16:26 schrieb Federico Pietro Briata > : > > Hi again, > > I saw that some JIT optimization for arm32 has been announcement in icedtea > > the announcement is available at > http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2015-January/030392.html > > So I'm just wondering if anyone know if shark can be enabled again also in > yocto recipes and can suggest me some tip to use it. I fear you mix between ARMJIT provided by IceadTea and ZeroShark provided by OpenJDK. While IcedTea maintains the ARMJIT within hotspot ported from OpenJDK6, ZeroShark uses LLVM's JIT. Since ARM support in LLVM's JIT was utterly broken, MCJIT support is required for ZeroShark. I was working on that but my ARMv7 and my ARMv5 are still crashing - even when I can realize some progress (how quick does it crash ^^). Dunno if - and if, when - I find some tuits to continue the crash detection and fixing... Cheers -- Jens Rehsack - rehs...@gmail.com -- ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
Re: [yocto] [meta-java] can zero shark be enabled again?
2015-10-16 16:14 GMT+01:00, Jens Rehsack : > > I fear you mix between ARMJIT provided by IceadTea and ZeroShark provided by > OpenJDK. Ops > While IcedTea maintains the ARMJIT within hotspot ported from OpenJDK6, > ZeroShark uses LLVM's JIT. I thought ARMJIT was part of Shark and provided with hotspot Zero, thanks for clarification! > Since ARM support in LLVM's JIT was utterly broken, MCJIT support is > required for ZeroShark. > I was working on that but my ARMv7 and my ARMv5 are still crashing - even > when I can realize some progress (how quick does it crash ^^). > > Dunno if - and if, when - I find some tuits to continue the crash detection > and fixing... Can I help you with testing and debugging? If you give me some tip, I've lot of time to spend for it! :) > > Cheers Ciao federico -- ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
Re: [yocto] [meta-java] can zero shark be enabled again?
2015-10-16 17:14 GMT+02:00 Jens Rehsack : > > While IcedTea maintains the ARMJIT within hotspot ported from OpenJDK6, > ZeroShark uses LLVM's JIT. > > Since ARM support in LLVM's JIT was utterly broken, MCJIT support is > required for ZeroShark. > I was working on that but my ARMv7 and my ARMv5 are still crashing - even > when I can realize some progress (how quick does it crash ^^). > > Hi I'm trying to compare performance of openjdk 7 with Oracle ejdk 8 # java -version java version "1.7.0_85" OpenJDK Runtime Environment (IcedTea 2.6.1) (85b01-2.6.1) OpenJDK Zero VM (build 24.85-b03, mixed mode) # java Linpack Mflops/s: 13.205 Time: 0.05 secs Norm Res: 1.43 Precision: 2.220446049250313E-16 # /usr/local/java.oracle/bin/java -version java version "1.8.0_06" Java(TM) SE Embedded Runtime Environment (build 1.8.0_06-b23) Java HotSpot(TM) Embedded Client VM (build 25.6-b23, mixed mode) # /usr/local/java.oracle/bin/java Linpack Mflops/s: 22.151 Time: 0.03 secs Norm Res: 1.43 Precision: 2.220446049250313E-16 As I prefer stay free and avoid commercial solution, anyone can confirm me that I didn't forgot some optimization in my OpenJDK or something it's still improved? thanks and regards federico -- ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
