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SubjectRe: [PATCH] RUSAGE_THREAD
From


Sripathi Kodi wrote:
> On Friday 22 February 2008 23:13, Michael Kerrisk wrote:
>> Sripathi Kodi wrote:
>>> Hi Andrew,
>>>
>>> This adds the RUSAGE_THREAD option for the getrusage system call.
>>> This is essentially Roland's patch from
>>> http://lkml.org/lkml/2008/1/18/589, but the line about RUSAGE_LWP
>>> line has been removed, as suggested by Ulrich and Christoph.
>>>
>>> Thanks,
>>> Sripathi.
>>>
>>> This adds the RUSAGE_THREAD option for the getrusage system call.
>> Sripathi,
>>
>> Could you write some small piece of text for the getrusage.2 man page
>> that describes the intended behavior of RUSAGE_THREAD?
>
> Michael,
>
> Please take a look at the following patch to getrusage.2. This is the first
> time I have edited a manpage, so I hope I have done it correctly!
>
> Also, the RUSAGE_THREAD patch is currently in -mm, but not in mainline
> yet. Hoping that it will make it, I have put a line in the patch that it is
> supported from 2.6.25 onwards.

Sripathi,

Thanks for the patch -- looks reasonable to me.

I see that RUSAGE_THREAD didin't make the cut for 2.6.25. If you remember,
could you ping me when it does hit mainline.

Cheers,

Michael


> PS: I fixed spelling error in Ulrich's mail id in the CC list.
>
> Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com>
>
> --- getrusage.2.org 2008-02-27 17:00:57.000000000 +0530
> +++ getrusage.2 2008-02-27 17:01:28.000000000 +0530
> @@ -44,12 +44,22 @@ getrusage \- get resource usage
> .PP
> .BR getrusage ()
> returns current resource usages, for a \fIwho\fP
> -of either
> +of
> +.B RUSAGE_THREAD,
> .B RUSAGE_SELF
> or
> .BR RUSAGE_CHILDREN .
> -The former asks for resources used by the current process,
> -the latter for resources used by those of its children
> +.PP
> +.B RUSAGE_THREAD
> +asks for resources used by the calling thread.
> +.PP
> +.B RUSAGE_SELF
> +asks for resources used by the current process,
> +which is the sum of resources used by all threads
> +in the process.
> +.PP
> +.B RUSAGE_CHILDREN
> +asks for resources used by those of its children
> that have terminated and have been waited for.
> .PP
> .in +0.5i
> @@ -130,6 +140,9 @@ Since Linux 2.6,
> and
> .I ru_nivcsw
> are also maintained.
> +.PP
> +.B RUSAGE_THREAD
> +is supported only in Linux kernel versions 2.6.25 and above.
> .SH "SEE ALSO"
> .BR getrlimit (2),
> .BR times (2),
>

--
Michael Kerrisk
Maintainer of the Linux man-pages project
http://www.kernel.org/doc/man-pages/
Want to report a man-pages bug? Look here:
http://www.kernel.org/doc/man-pages/reporting_bugs.html




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