From: "Pierre Etchemaïté" <petchema@concept-micro.com>
To: caml-list@inria.fr
Subject: Re: [Caml-list] caml_oldify_local_roots takes 50% of the total runtime
Date: Fri, 27 Oct 2006 23:16:45 +0200 [thread overview]
Message-ID: <20061027231645.b68969d2.petchema@concept-micro.com> (raw)
In-Reply-To: <454206CF.1080306@janestcapital.com>
Le Fri, 27 Oct 2006 09:17:03 -0400, Brian Hurt <bhurt@janestcapital.com> a écrit :
> With respect to 4146 (minor heap size adjusts to memory size)- I'm not
> sure this is a good idea. 32K is small enough to fit into L1 cache with
> space left over on pretty much all systems these days (64K L1 cache
> seems to be standard).
Default size is 32K *words*, hence 128kB for 32bit archs and 256kB on 64bits.
Small enough to stay in L2 cache, but not L1.
Also, from reading
http://citeseer.ist.psu.edu/goncalves94cache.html
It seems that write-validate cache policy makes minor heaps larger than
L2 cache a non-issue for most programs.
That paper is 10 years old, did that policy become the norm since then ?
next prev parent reply other threads:[~2006-10-27 21:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-25 15:49 Hendrik Tews
2006-10-25 18:21 ` [Caml-list] " Markus Mottl
2006-10-25 19:01 ` skaller
2006-10-26 9:50 ` Hendrik Tews
2006-10-26 13:48 ` Gerd Stolpmann
2006-10-27 11:36 ` Hendrik Tews
2006-10-27 13:17 ` Brian Hurt
2006-10-27 20:05 ` Robert Roessler
2006-10-27 21:16 ` Pierre Etchemaïté [this message]
2006-10-30 7:50 ` Hendrik Tews
2006-10-26 9:47 ` Hendrik Tews
2006-10-26 14:54 ` Markus Mottl
2006-12-15 10:56 ` Hendrik Tews
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=20061027231645.b68969d2.petchema@concept-micro.com \
--to=petchema@concept-micro.com \
--cc=caml-list@inria.fr \
/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).