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From: Sam Steingold <sds@podval.org>
To: caml-list@inria.fr
Subject: compiling large file hogs RAM and takes a long time.
Date: Wed, 06 Jun 2007 12:30:23 -0400	[thread overview]
Message-ID: <4666E11F.6000308@podval.org> (raw)

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I wrote a parser generator for a tick data file.
The generated OCaml file is ~1Mb and contains ~120 variant type
definitions (each with 2 to ~100 variants) plus one polymorphic variant
type.
When I compiled it with ocamlopt (3.09.3), it took almost 10 minutes and
consumed ~500MB RAM (Firefox and Thunderbird were killed by the kernel
to make space for ocamlopt).
I run Linux 2.6.18.8 on a dual CPU Pentium D 2.80GHz with 1GB of RAM.
(in 32-bit mode)

So, is this something to be expected? 10 min / 500MB seems like a little
bit excessive to me, given that the file is really very simple conceptually.

Thanks!
Sam.
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             reply	other threads:[~2007-06-06 16:30 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-06 16:30 Sam Steingold [this message]
2007-06-06 16:51 ` [Caml-list] " skaller
2007-06-06 17:05   ` Sam Steingold
2007-06-07 15:52 ` Sam Steingold
2007-06-08  1:02   ` [Caml-list] " Jacques Garrigue
2007-06-08  1:51     ` skaller
2007-06-08  2:26       ` Yaron Minsky
2007-06-08  9:05       ` Thomas Fischbacher
2007-06-08  9:35         ` skaller
2007-06-08  9:55           ` Thomas Fischbacher
2007-06-08 13:39       ` Sam Steingold
2007-06-08 12:30     ` [Caml-list] " Jacques Garrigue
2007-06-15 15:41       ` Sam Steingold
2007-06-15 18:56         ` [Caml-list] " Jon Harrop
2007-06-15 20:06           ` Sam Steingold
2007-07-09 20:22 ` large parametrized polymorphic variant type combinations take forever to compile Sam Steingold
2007-07-09 22:45   ` Sam Steingold
2007-07-09 23:37   ` [Caml-list] " Jacques Garrigue
2007-07-10  7:09     ` Christophe Raffalli
2007-07-10  7:31       ` Jacques Garrigue
2007-07-10 14:16     ` Sam Steingold
2007-07-10 16:49     ` Sam Steingold
     [not found]     ` <46938BDA.1090605@podval.org>
2007-07-11  0:10       ` [Caml-list] " Jacques Garrigue
2007-07-11  1:19         ` Jon Harrop
2007-07-11  2:23           ` Jacques GARRIGUE
2007-07-11 13:12         ` Sam Steingold
2007-07-11 19:17           ` [Caml-list] " Jon Harrop
2007-07-10  3:34   ` [Caml-list] " skaller
2007-07-10 13:27     ` Sam Steingold

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