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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

  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

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