linux-kernel - Re: [RFC PATCH 3/3] mm/zsmalloc: change ZS_MAX_PAGES_PER

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Message-ID: <20160219041902.GA976@swordfish>
Date:	Fri, 19 Feb 2016 13:19:02 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc:	Joonsoo Kim <js1304@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Minchan Kim <minchan@...nel.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: Re: [RFC PATCH 3/3] mm/zsmalloc: change ZS_MAX_PAGES_PER_ZSPAGE

On (02/19/16 13:16), Sergey Senozhatsky wrote:
> # cat /sys/kernel/debug/zsmalloc/zram0/classes 
>   class  size  huge almost_full almost_empty obj_allocated   obj_used pages_used pages_per_zspage
>      0    32             0            0             0          0          0                1
>      1    48             0            0             0          0          0                3
>      2    64             3            0         31360      31355        490                1
>      3    80             1            1         62781      62753       1231                1
[..]
>    254  4096 Y           0            0        632586     632586     632586                1
> 

> so BAD classes are 10 times more often than 64 bytes objects for example. and not all of 4096
a typo, 				^^^^^ 80 bytes. and 20 times class 64.

	-ss