Re: [PATCH V3 8/8] memcg: Document cgroup dirty/writeback memorystatistics

From: Kamezawa Hiroyuki
Date: Thu Dec 27 2012 - 20:10:39 EST


(2012/12/26 2:28), Sha Zhengju wrote:
> From: Sha Zhengju <handai.szj@xxxxxxxxxx>
>
> Signed-off-by: Sha Zhengju <handai.szj@xxxxxxxxxx>

I don't think your words are bad but it may be better to sync with meminfo's text.

> ---
> Documentation/cgroups/memory.txt | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
> index addb1f1..2828164 100644
> --- a/Documentation/cgroups/memory.txt
> +++ b/Documentation/cgroups/memory.txt
> @@ -487,6 +487,8 @@ pgpgin - # of charging events to the memory cgroup. The charging
> pgpgout - # of uncharging events to the memory cgroup. The uncharging
> event happens each time a page is unaccounted from the cgroup.
> swap - # of bytes of swap usage
> +dirty - # of bytes of file cache that are not in sync with the disk copy.
> +writeback - # of bytes of file/anon cache that are queued for syncing to disk.
> inactive_anon - # of bytes of anonymous memory and swap cache memory on
> LRU list.
> active_anon - # of bytes of anonymous and swap cache memory on active
>

Documentation/filesystems/proc.txt

Dirty: Memory which is waiting to get written back to the disk
Writeback: Memory which is actively being written back to the disk

even if others are not ;(

Thanks,
-Kame





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