Re: [Caml-list] What is triggering a lot of GC work?

[Francois Berenger <berenger@riken.jp>]

On 02/25/2013 07:32 PM, ygrek wrote:
> On Mon, 25 Feb 2013 08:02:54 +0000
> Mark Shinwell <mshinwell@janestreet.com> wrote:
>
>> On 25 February 2013 02:08, Francois Berenger <berenger@riken.jp> wrote:
>>> Is there a way to profile a program in order
>>> to know which places in the source code
>>> trigger a lot of garbage collection work?
>>
>> Well, as of last week, there is!
>>
>> I'm working on a compiler and runtime patch which allows the
>> identification, without excessive overhead, of every location (source
>> file name / line number) which causes a minor or major heap allocation
>> together with the number of words allocated at that point.
>>
>> There should be something available within the next couple of weeks.
>> It only works on native code compiled for x86-64 machines at present.
>> Currently it has only been tested on Linux---although I expect it to
>> work on other Unix-like platforms with little or no modification.
>
> Meanwhile you can use poor man's allocation profiler :
> - http://ygrek.org.ua/p/code/pmpa
> - https://sympa-roc.inria.fr/wws/arc/caml-list/2011-08/msg00050.html

Did the changes reported on mldonkey to do less allocations had a 
significant impact on performances?