From: Richard Jones <rich@annexia.org>
To: Hugo Ferreira <hmf@inescporto.pt>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Tracking memory usage: GC output not same order as unix top command
Date: Mon, 30 Aug 2010 11:06:48 +0100 [thread overview]
Message-ID: <20100830100648.GB7715@annexia.org> (raw)
In-Reply-To: <20100830100252.GA7715@annexia.org>
On Mon, Aug 30, 2010 at 11:02:52AM +0100, Richard Jones wrote:
> On Mon, Aug 30, 2010 at 10:43:42AM +0100, Hugo Ferreira wrote:
> > The output
> > shows memory usage below the 100M mark, however the unix command
> > "top" shows usage in the order of Gigabytes (at least 4.8). This
> > memory consumption grows gradually.
>
> The output of top isn't a reliable way to measure memory usage.
>
> Really you should be looking at /proc/<pid>/maps. That will show you
> if, for example, the heap is becoming fragmented or if there's some
> memory leak. There is a nice utility for examining maps files and
> system memory usage, but the name of it escapes me at the moment.
I might have been thinking of this one:
http://lwn.net/Articles/329458/
Rich.
--
Richard Jones
Red Hat
next prev parent reply other threads:[~2010-08-30 10:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-30 9:43 Hugo Ferreira
2010-08-30 10:02 ` [Caml-list] " Richard Jones
2010-08-30 10:06 ` Richard Jones [this message]
2010-08-30 10:33 ` Hugo Ferreira
2010-08-30 13:53 ` Richard Jones
2010-08-30 14:12 ` Pietro Abate
2010-08-30 14:17 ` Hugo Ferreira
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