From: Brian Hurt <bhurt@spnz.org>
To: "Lodewijk Vöge" <lvoege@gmail.com>
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] STM support in OCaml
Date: Wed, 8 Mar 2006 21:13:30 -0600 (CST) [thread overview]
Message-ID: <Pine.LNX.4.63.0603082112280.9569@localhost.localdomain> (raw)
In-Reply-To: <A77412AA-96DB-456F-AECD-FB0AE2ABD23F@gmail.com>
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On Thu, 9 Mar 2006, Lodewijk Vöge wrote:
> On 8-mrt-2006, at 23:11, Brian Hurt wrote:
>
>> Love to. Wanna buy me the box? :-} Seriously- my code is attached, if
>> someone wants to run it on other boxes and post the results, feel free.
>> It's GNU-C/x86 specific, as I'm using GNU C's inline assembler and the
>> rdtsc instruction to get accurate cycle counts.
>
> I don't know if rdtsc is accurate on 64bit, but this is what running it on a
> dual opteron 250 running 64bit linux gives:
On 64-bit, I think rdtsc only sets the RAX register. At least that's what
I'm assuming is going on- 144 million clocks for a rdtsc seems a bit
extreme.
Brian
next prev parent reply other threads:[~2006-03-09 3:12 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-07 16:18 Asfand Yar Qazi
2006-03-07 16:50 ` [Caml-list] " Sebastian Egner
2006-03-07 17:44 ` Michael Hicks
2006-03-08 0:37 ` Asfand Yar Qazi
2006-03-08 5:05 ` Erick Tryzelaar
2006-03-11 19:43 ` Deadlock free locking scheme (was: Re: [Caml-list] STM support in OCaml) David MENTRE
2006-03-07 17:15 ` [Caml-list] STM support in OCaml skaller
2006-03-07 19:05 ` Asfand Yar Qazi
2006-03-08 0:52 ` skaller
2006-03-08 7:08 ` Bardur Arantsson
2006-03-08 10:38 ` [Caml-list] " Asfand Yar Qazi
2006-03-08 19:36 ` William Lovas
2006-03-08 20:45 ` Brian Hurt
2006-03-08 21:14 ` Paul Snively
2006-03-08 22:06 ` skaller
2006-03-08 22:10 ` Gerd Stolpmann
2006-03-08 23:48 ` skaller
2006-03-09 7:45 ` Andrae Muys
2006-03-09 9:18 ` David Brown
2006-03-08 22:11 ` Brian Hurt
2006-03-08 23:05 ` Lodewijk Vöge
2006-03-09 3:13 ` Brian Hurt [this message]
2006-03-08 23:45 ` Robert Roessler
2006-03-09 0:23 ` skaller
2006-03-09 3:19 ` Brian Hurt
2006-03-09 4:32 ` skaller
2006-03-09 10:38 ` John Chu
2006-03-09 16:53 ` Stefan Monnier
2006-03-11 15:26 ` [Caml-list] " Florian Weimer
2006-03-08 10:11 yoann padioleau
2006-03-08 10:41 ` Asfand Yar Qazi
2006-03-08 12:23 ` skaller
2006-03-08 23:02 ` Asfand Yar Qazi
2006-03-09 0:36 ` skaller
2006-03-08 11:32 ` Gerd Stolpmann
2006-03-08 12:04 ` skaller
2006-03-08 19:22 ` Dan Grossman
2006-03-08 22:10 ` skaller
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