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From: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH/RFC] mxl4_core: Scale size of MTT table with system RAM
Date: Tue, 13 Mar 2012 08:27:25 +0200	[thread overview]
Message-ID: <4F5EE8CD.7020909@mellanox.com> (raw)
In-Reply-To: <CAL1RGDVaGpVXukyKpJ2vPZE3br4UWn+td8Ba03fKHuY-53H2vg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On 3/13/2012 1:29 AM, Roland Dreier wrote:
> It's just a heuristic, but I figured some app might want to register 
> essentially all of memory, and then we want some more to cover other 
> users. The amount of memory used for unused MTT space is pretty small, 
> I think. 

If an app registered essentially all memory, then practically nothing 
else left for other users, or you refer to the case where the driver 
consumed an MTT segment made of 8 elements on behalf of a certain app 
but didn't use all the MTT entries of that segment?

> I fixed the mxl4->mlx4, thanks.

sure,

Or.

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  parent reply	other threads:[~2012-03-13  6:27 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-05 18:09 [PATCH/RFC] mxl4_core: Scale size of MTT table with system RAM Roland Dreier
     [not found] ` <1330970972-10225-1-git-send-email-roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2012-03-12 21:35   ` Or Gerlitz
     [not found]     ` <CAJZOPZ+qLzZaH=fmKVRE0K559DoeQ1SsrsjSDY0TS-z8+WjnYQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-03-12 23:29       ` Roland Dreier
     [not found]         ` <CAL1RGDVaGpVXukyKpJ2vPZE3br4UWn+td8Ba03fKHuY-53H2vg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-03-13  6:27           ` Or Gerlitz [this message]
     [not found]             ` <4F5EE8CD.7020909-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2012-03-13 17:59               ` Roland Dreier
  -- strict thread matches above, loose matches on Subject: below --
2012-03-05 18:09 Roland Dreier

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