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From "Mikhail Fursov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-3651) [drlvm][jit][win-x64] Very slow compilation in Jitrino on Windows x86-64.
Date Fri, 13 Apr 2007 15:14:15 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-3651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12488699
] 

Mikhail Fursov commented on HARMONY-3651:
-----------------------------------------

It's normal situation: JET is 10 times faster then OPT

Other  reasons of slow compilation time
1) Debug build turns a lot of additional and complex checking routines in OPT on.
2) Aggresive inlining parametes can make OPT compile more methods then JET

What are the timings for release builds?


> [drlvm][jit][win-x64] Very slow compilation in Jitrino on Windows x86-64.
> -------------------------------------------------------------------------
>
>                 Key: HARMONY-3651
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3651
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Pavel Afremov
>            Priority: Minor
>         Attachments: log.txt
>
>
> Kernel test "java.lang.ThreadTest" on JET works 15 seconds, but 2.5 minutes on OPT.
> Command:
> ~/trunk-debug-20070405/working_vm/build $ time deploy/jdk/jre/bin/java -Xbootclasspath/a:"../../working_classlib/depends/jars/junit_3.8.2/junit.jar;win_em64t_msvc_debug/semis/kernel.tests/classes"
-Dtest.resource.path=win_em64t_msvc_debug/semis/kernel.tests/resources -Xem:opt junit.textui.TestRunner
java.lang.ThreadTest
> Output:
> .........................................
> .........................................
> .........
> Time: 24.297
> OK (91 tests)
> real    2m35.573s
> user    0m0.000s
> sys     0m0.000s

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