Re: [Caml-list] Manually triggering garbage collection

[Damien Doligez <damien.doligez@inria.fr>]

On 2008-07-29, at 15:39, Jean Krivine wrote:

> OK great I' ll try,
> For the moment I just set a Gc alarm that detects whether memory usage
> is above a certain limit and if so, sets the overhead to 0, which
> stops completely the memory "leak".

Setting the overhead to 0 seems a bit overkill.  You might want to
do a Gc.compact() at this point.  Or you might just need to change
the max_overhead parameter: the lower it is, the more often the
GC will compact the heap.

> Do you think that would improve to increase the size of the major  
> heap?

Yes, sometimes it helps with fragmentation.  Also, increasing the
heap_increment may help.

> Also, do you know how often the alarm is tested? is it each time a
> major collection is performed?

The GC alarms are triggered at the end of each major collection.

-- Damien