linux-ext4 - Re: fsck memory usage

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Message-ID: <20130501040919.GA22839@thunk.org>
Date:	Wed, 1 May 2013 00:09:19 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Subranshu Patel <spatel.ml@...il.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: fsck memory usage

On Wed, May 01, 2013 at 08:12:14AM +0530, Subranshu Patel wrote:
> 
> I used the sar command for tracking memory usage. The total memory
> usage reported by sar command is around 8GB, but it includes the
> buffer and cache memory.
> 
> memused = 8GB
> 
> buffer = 6.7GB
> 
> cache = negligible (some MBs)
> 
> So I think the effective memory usage will be 1.3GB (8 - 6.7). So the
> memory reported under buffer and cache is available for use (if any
> other process requires it). Please correct my understanding.

Yes, in general this is true.  I'm curious why you are you don't just
use /usr/bin/time, though.

						- Ted
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