linux-kernel - Re: [patch -rss] Make RSS accounting display more user friendly

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Message-ID: <46811D41.3020504@sw.ru>
Date:	Tue, 26 Jun 2007 18:05:53 +0400
From:	Kirill Korotaev <dev@...ru>
To:	balbir@...ux.vnet.ibm.com
CC:	Paul Menage <menage@...gle.com>,
	Linux Containers <containers@...ts.osdl.org>,
	Pavel Emelianov <xemul@...nvz.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [patch -rss] Make RSS accounting display more user friendly

Balbir Singh wrote:
> Kirill Korotaev wrote:
> 
>>Paul Menage wrote:
>>
>>>On 6/22/07, Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:
>>>
>>>
>>>>The problem with input in bytes is that the user will have to ensure
>>>>that the input is
>>>>a  multiple of page size, which implies that she would need to use the
>>>>calculator every time.
>>>>
>>>
>>>Having input in bytes seems pretty natural to me. Why not just have
>>>the RSS controller round the input to the nearest page (or whatever
>>>granularity of memory the controller is able to limit at)?
>>
>>totally agree with Paul.
>>
>>Kirill
>>
> 
> Kirill
> 
> If someone assigns a rss_limit of 1 byte and sees a usage of 1 page,
> won't that be confusing. But having said that it's not a big
> change, it should be easy to accommodate.

Well, from my expirience pages are hardly understandable by people.
So bytes are always better and more convinient for non-programmers.
Rounding is not that big issue, since people still get the result
they expect (unlike to the case when they mess up with the page size).

Thanks,
Kirill

P.S. 1 byte limit is not that common :)

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