From: "Török Edwin" <edwin+ml-ocaml@etorok.net>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Behaviour of an OCaml program: any possible GC improvement?
Date: Thu, 25 Oct 2012 13:16:10 +0300 [thread overview]
Message-ID: <5089116A.8060907@etorok.net> (raw)
In-Reply-To: <CAC3Lx=aqo-RNC+1wLRQdaYPUR+0s7vCAifxE_UdcBt48d39FwQ@mail.gmail.com>
On 10/25/2012 01:06 PM, David MENTRE wrote:
> Hello Edwin,
>
> 2012/10/24 Török Edwin <edwin+ml-ocaml@etorok.net>:
>> You can try tuning the Gc parameters:
>> http://caml.inria.fr/pub/docs/old-311/libref/Gc.html
>>
>> Try increasing minor_heap_size, and major_heap_increment and see if there is any improvement.
>> Also look at Gc.stat() and see how many major collections and live words you have.
>
> Olivier Andrieu made a similar suggestion and that helps!
>
> 2012/10/25 Olivier Andrieu:
>> Try running your program with OCAMLRUNPARAM=s=256k !
>> (A good value is about the size of the CPU L2 cache I'd say).
>
> Thanks Olivier, your suggestion brings significant improvements!
>
> On a particular example:
> * default: 2m14.142s
> * s=256k: 1m32.185s
> * s=1024k: 0m45.420s
Would using the native code compiler increase the speed further?
--Edwin
next prev parent reply other threads:[~2012-10-25 10:16 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-24 10:08 David MENTRE
2012-10-24 10:33 ` John Whitington
2012-10-24 12:30 ` David MENTRE
2012-10-24 12:39 ` John Whitington
2012-10-24 12:45 ` Edgar Friendly
2012-10-24 12:53 ` John Whitington
2012-10-24 13:19 ` David MENTRE
2012-10-24 13:27 ` John Whitington
2012-10-24 13:38 ` Oliver Bandel
2012-10-24 14:30 ` David MENTRE
2012-10-24 15:09 ` David MENTRE
2012-10-24 16:07 ` AW: " Gerd Stolpmann
2012-10-24 17:23 ` Martin Jambon
[not found] ` <1351094817.12207.11@samsung>
2012-10-25 6:48 ` David MENTRE
2012-10-25 7:37 ` David House
2012-10-24 10:38 ` Török Edwin
2012-10-25 10:06 ` David MENTRE
2012-10-25 10:16 ` Török Edwin [this message]
2012-10-25 10:19 ` David MENTRE
2012-11-07 11:52 ` David MENTRE
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5089116A.8060907@etorok.net \
--to=edwin+ml-ocaml@etorok.net \
--cc=caml-list@inria.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox