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From "Rana Dasgupta (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-2154) port_CPUs_number returns incorrect information on EM64T in wow mode
Date Sun, 12 Nov 2006 02:20:38 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-2154?page=all ]

Rana Dasgupta updated HARMONY-2154:
-----------------------------------

    Attachment: platformapi.patch

Adding the patch

> port_CPUs_number returns incorrect information on EM64T in wow mode
> -------------------------------------------------------------------
>
>                 Key: HARMONY-2154
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2154
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: msvc, Windows XP
>            Reporter: Rana Dasgupta
>         Attachments: platformapi.patch
>
>
> port_CPUs_number uses GetSystemInfo which returns incorrect platform information in emulation
mode. This fix looks for GetNativeSystemInfo in the kernel and uses it if available; if not
uses GetSystemInfo. On native 64 bit mode GetNative SystemInfo delegates to GetSystemInfo.
This, and the way WOW redirection works, enables the correct api to be used in all 32 and
64 bit situations.
> The patch also adds an api port_Cores_number for core counting on 32 and 64 bit platforms.
This is a placeholder implementataion to be extended if we decide to access NUMA or related
information through this api.

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