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From: Chengqi Song <songcq@gmail.com>
To: caml-list@inria.fr
Subject: [Caml-list] Memory usage of ocaml program
Date: Fri, 23 Nov 2012 10:34:55 +0800	[thread overview]
Message-ID: <CADjdUigz-nY8QNNcZfB_DdDonmPz-fGPFb6sFu1kxbNua-SdnQ@mail.gmail.com> (raw)

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I have the same program (same binary) running in different modes. From
GC stats I see they're using the same amount of heap now (209m) and
the stack is small. But in top's RES column, I see one is using 270m
memory and the other one is using 622m. Forcing heap compaction does
not change the numbers.

I don't quite understand this difference. A program's memory usage
should be code, static data, heap and stack. For the same binary, code
and static data segment should be the same, and now that GC stats
tells me heap and stack are the same, why there is a 352m difference
in memory usage?

Thanks

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             reply	other threads:[~2012-11-23  2:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-23  2:34 Chengqi Song [this message]
2012-11-23  6:40 ` Gabriel Scherer
2012-11-23 15:29   ` Edgar Friendly
2012-11-23 16:05 ` Gerd Stolpmann

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