linux-kernel - Re: [LTP] [PATCH 1/8] Scaling msgmni to the amount of lowmem

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Date:	Fri, 22 Feb 2008 07:25:20 +0100
From:	Nadia Derbey <Nadia.Derbey@...l.net>
To:	subrata@...ux.vnet.ibm.com
Cc:	Matt Helsley <matthltc@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	ltp-list@...ts.sourceforge.net,
	containers@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, cmm@...ibm.com,
	y-goto@...fujitsu.com
Subject: Re: [LTP] [PATCH 1/8] Scaling msgmni to the amount of lowmem

Subrata Modak wrote:
>>Nadia Derbey wrote:
>>
>>>Matt Helsley wrote:
>>>
>>>
>>>>On Tue, 2008-02-19 at 18:16 +0100, Nadia Derbey wrote:
>>>>
>>>><snip>
>>>>
>>>>>+#define MAX_MSGQUEUES  16      /* MSGMNI as defined in linux/msg.h */
>>>>>+
>>>>
>>>>
>>>>
>>>>It's not quite the maximum anymore, is it? More like the minumum
>>>>maximum ;). A better name might better document what the test is
>>>>actually trying to do.
>>>>
>>>>One question I have is whether the unpatched test is still valuable.
>>>>Based on my limited knowledge of the test I suspect it's still a correct
>>>>test of message queues. If so, perhaps renaming the old test (so it's
>>>>not confused with a performance regression) and adding your patched
>>>>version is best?
>>>>
>>>
>>>So, here's the new patch based on Matt's points.
>>>
>>>Subrata, it has to be applied on top of the original ltp-full-20080131. 
>>>Please tell me if you'd prefer one based on the merged version you've 
>>>got (i.e. with my Tuesday patch applied).
> 
> 
> Nadia, I would prefer Patch on the top of the already merged version (on
> top of latest CVS snapshot as of today). Anyways, thanks for all these
> effort :-)
> 
> --Subrata
> 

In attachment, you'll find a patch to apply on top of the patches I sent 
you on Tuesday.

Regards,
Nadia

View attachment "ipc_ltp_full_20080131.2.patch" of type "text/x-patch" (37758 bytes)