From: Damien Doligez <damien.doligez@inria.fr>
To: OCaml List <caml-list@yquem.inria.fr>
Subject: Re: [Caml-list] Gc.compact surprisingly helpful
Date: Sat, 5 Dec 2009 18:06:48 +0100 [thread overview]
Message-ID: <95594484-7A9F-4ECA-B7A8-079D433BF4FB@inria.fr> (raw)
In-Reply-To: <c413fcb70912041109n287c3244q7d51cc08a5af036d@mail.gmail.com>
On 2009-12-04, at 20:09, Aaron Bohannon wrote:
> So in a 15 second run (with no
> idle time, as I said), it now does about 130 heap compactions instead
> of 3 and gets better total performance because of it, utterly defying
> my GC intuition.
What is the size of your heap? Have you tried compacting only once
every 2, 3, 5, or 10 loops?
One possible explanation is that compaction will also compact the
free list into a few large blocks, which makes allocation faster.
-- Damien
next prev parent reply other threads:[~2009-12-05 17:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-04 19:09 Aaron Bohannon
2009-12-04 19:31 ` [Caml-list] " Florian Hars
2009-12-05 17:06 ` Damien Doligez [this message]
2009-12-08 3:30 ` Aaron Bohannon
2009-12-05 17:35 ` Xavier Leroy
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