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

[Mark Shinwell <mshinwell@janestreet.com>]

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.

Mark