linux-kernel - Re: [PATCH] mm: add ratio in slabinfo print

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Message-ID: <5693AAD5.6090101@huawei.com>
Date:	Mon, 11 Jan 2016 21:15:01 +0800
From:	Xishi Qiu <qiuxishi@...wei.com>
To:	Michal Hocko <mhocko@...nel.org>
CC:	<cl@...ux.com>, Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>, <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	zhong jiang <zhongjiang@...wei.com>,
	Linux MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: add ratio in slabinfo print

On 2016/1/11 20:25, Michal Hocko wrote:

> On Mon 11-01-16 11:54:57, Xishi Qiu wrote:
>> Add ratio(active_objs/num_objs) in /proc/slabinfo, it is used to show
>> the availability factor in each slab.
> 
> What is the reason to add such a new value when it can be trivially
> calculated from the userspace?
> 
> Besides that such a change would break existing parsers no?

Oh, maybe it is.

How about adjustment the format because some names are too long?

Thanks,
Xishi Qiu