From: "KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Adam Litke <agl@us.ibm.com>
Subject: Re: [RFC PATCH] Report the shmid backing a VMA in maps
Date: Sun, 5 Oct 2008 14:48:39 +0900 [thread overview]
Message-ID: <2f11576a0810042248v209cae42m3ed280f0489b8a0@mail.gmail.com> (raw)
In-Reply-To: <20081004215228.GA20048@x200.localdomain>
2008/10/5 Alexey Dobriyan <adobriyan@gmail.com>:
> On Sat, Oct 04, 2008 at 09:04:03PM +0900, KOSAKI Motohiro wrote:
>> In the other hand, huge page is often used via ipc shm, not mmap.
>> So, administrator often want to know relationship of memory region and shmid.
>>
>> Then, To add shmid attribute in /proc/{pid}/maps is useful.
>>
>>
>> In addition, shmid information is not only useful for huge page, but also for normal shm.
>> Then, this patch works well on normal shm.
>
>> 2000000000500000-2000000000900000 rw-s 00000000 00:09 0 /SYSV00000000 (deleted) (shmid=0)
>> 2000000000900000-2000000000d00000 rw-s 00000000 00:09 32769 /SYSV00000000 (deleted) (shmid=32769)
> ^^^^^ ^^^^^
>
> shmid is already in place, and no, it's not a coincidence ;-)
Oops, Thanks very good information.
I'll drop this patch :)
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next prev parent reply other threads:[~2008-10-05 5:48 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-03 16:46 [PATCH 0/2] Report the size of pages backing VMAs in /proc V3 Mel Gorman
2008-10-03 16:46 ` [PATCH 1/2] Report the pagesize backing a VMA in /proc/pid/smaps Mel Gorman
2008-10-08 21:38 ` Alexey Dobriyan
2008-10-09 2:16 ` KOSAKI Motohiro
2008-10-09 10:24 ` Mel Gorman
2008-10-03 16:46 ` [PATCH 2/2] Report the pagesize backing a VMA in /proc/pid/maps Mel Gorman
2008-10-04 8:14 ` KOSAKI Motohiro
2008-10-04 12:04 ` [RFC PATCH] Report the shmid backing a VMA in maps KOSAKI Motohiro
2008-10-04 12:07 ` KOSAKI Motohiro
2008-10-04 21:52 ` Alexey Dobriyan
2008-10-05 5:48 ` KOSAKI Motohiro [this message]
2008-10-04 22:13 ` [PATCH 2/2] Report the pagesize backing a VMA in /proc/pid/maps Alexey Dobriyan
2008-10-05 6:00 ` KOSAKI Motohiro
2008-10-06 10:09 ` Mel Gorman
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