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From "Gregory Shimansky (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HARMONY-3227) [jvmti] significant performance degradation when turning-on jvmti on linux em64t
Date Fri, 23 Feb 2007 01:02:07 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-3227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gregory Shimansky resolved HARMONY-3227.
----------------------------------------

    Resolution: Fixed

Patch applied at 510740. Please check that it was applied as expected.

> [jvmti] significant performance degradation when turning-on jvmti on linux em64t
> --------------------------------------------------------------------------------
>
>                 Key: HARMONY-3227
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3227
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: linux-em64t
>            Reporter: Rustem Rafikov
>         Assigned To: Gregory Shimansky
>         Attachments: jvmti-monitor-capa-check.em64t.diff
>
>
> Hi All, 
> I noticed sugnificant performance degradation when turning-on jvtmi on lnx64. The problem
is that monitor helpers always use slow path when jvmti is enabled without checking whether
the corresponding capability is added. 
> The attached pach adds this check jit_lock_rt_support_em64t.cpp.
> --bwR

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