caml-list - the Caml user's mailing list
 help / color / mirror / Atom feed
From: "John F. Carr" <jfc@MIT.EDU>
To: Raoul Duke <raould@gmail.com>
Cc: OCaml <caml-list@inria.fr>
Subject: Re: [Caml-list] concurrent gc?
Date: Wed, 23 Jul 2014 20:05:31 -0400	[thread overview]
Message-ID: <21456.19915.45180.915211@gargle.gargle.HOWL> (raw)
In-Reply-To: <CAJ7XQb7DzUkH0TzB1rSkDpw5e_KdyXSqZLMnfYWa_y3X9mqsYQ@mail.gmail.com>


Most programs spend a minority of their time in garbage collection.
Even if the new GC thread did not slow down the main program,
possible speedup would be less than 2x, probably well under 50%.

For technical reasons, offloading major collections in OCaml is easier
than offloading minor collections, so the potential benefit is less.

 > extremely clueless question warning, both generally technically but
 > also vis-a-vie ocaml specifically:
 > 
 > so even if ocaml can't so easily be made to support multiple threads
 > of ocaml code, could the gc be moved off to another thread? so that it
 > could run on another core. would that be of any benefit?

  reply	other threads:[~2014-07-24  0:05 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-23 23:34 Raoul Duke
2014-07-24  0:05 ` John F. Carr [this message]
2014-07-24  0:08   ` Raoul Duke
2014-07-24  0:44     ` John F. Carr
2014-07-24  0:45       ` Raoul Duke
2014-07-24 15:24         ` Shayne Fletcher
2014-07-24  3:45     ` Malcolm Matalka
2014-07-24  5:58       ` Anthony Tavener
2014-07-28 11:20         ` Goswin von Brederlow
2014-07-24  6:58   ` Nicolas Boulay
2014-07-24  7:38     ` Malcolm Matalka
2014-07-24 15:36     ` Fabrice Le Fessant
2014-07-24 15:39       ` Malcolm Matalka
2014-07-24 16:44         ` Fabrice Le Fessant
2014-07-25  7:18           ` Nicolas Boulay
2014-07-28 11:26             ` Goswin von Brederlow
2014-07-28 11:24           ` Goswin von Brederlow
2014-07-28 17:34             ` Raoul Duke
2014-07-29  4:25               ` Gabriel Scherer
2014-07-29  4:49                 ` ygrek
2014-07-29 10:01                   ` Goswin von Brederlow
2014-07-29 10:29                     ` ygrek
2014-07-31 11:10                       ` Goswin von Brederlow
2014-07-29 17:23                 ` Raoul Duke
2014-12-19  0:58                   ` Jon Harrop
2014-07-31 14:26         ` Richard W.M. Jones

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=21456.19915.45180.915211@gargle.gargle.HOWL \
    --to=jfc@mit.edu \
    --cc=caml-list@inria.fr \
    --cc=raould@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).