linux-kernel - Re: what's cooking in zram for 4.1

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Message-ID: <20150518095649.GB2330@swordfish>
Date:	Mon, 18 May 2015 18:56:49 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	Karel Zak <kzak@...hat.com>
Cc:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	Minchan Kim <minchan@...nel.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	linux-kernel@...r.kernel.org, util-linux@...r.kernel.org
Subject: Re: what's cooking in zram for 4.1

On (05/18/15 11:36), Karel Zak wrote:
> On Sat, May 09, 2015 at 01:21:48PM +0900, Sergey Senozhatsky wrote:
> > There will be some user-space visible changes in zram 4.1 we'd love to let you know
> > about.
> 
> ...
> 
> > -- /sys/block/zram<id>/mm_stat
> > 
> > The stat file represents device's mm statistics. It consists of a single
> > line of text and contains the following stats separated by whitespace:
> >         orig_data_size
> >         compr_data_size
> >         mem_used_total
> >         mem_limit
> >         mem_used_max
> >         zero_pages
> >         num_migrated
> 
> OK, zramctl(8) code in util-linux git tree supports mm_stat file now.
> It's able to fallback to the original /sys/block/zram<id>/<attr> if
> mm_stat does not exist. The change will be available in v2.27 (~Aug 2015).
> 
> I have also added support for MEM-LIMIT, MEM-USED and MIGRATED columns.
> 

great, thanks!

	-ss
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