From: Simon Wright <simon.j.wright@mac.com>
Subject: Re: real_time.clock is not monotonic
Date: Mon, 26 Feb 2007 20:59:56 +0000
Date: 2007-02-26T20:59:56+00:00 [thread overview]
Message-ID: <m2vehohbxv.fsf@mac.com> (raw)
In-Reply-To: 87ps7xnvze.fsf@mid.deneb.enyo.de
Florian Weimer <fw@deneb.enyo.de> writes:
> * Simon Wright:
>
>> ("rdtsc" & ASCII.LF & ASCII.HT &
>
> This is not monotonic, either, because on some (most?)
> architectures, the cycle counters of the different CPUs are not
> synchronized.
As I said, it was for hi-res timing, and if you get swapped in the
timed code the result is an outlier even if there's onlu one CPU.
next prev parent reply other threads:[~2007-02-26 20:59 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-21 16:16 real_time.clock is not monotonic frederic.ormancey
2007-02-21 19:46 ` Georg Bauhaus
2007-02-21 20:33 ` Michael Bode
2007-02-21 20:17 ` Simon Wright
2007-02-22 9:50 ` Duncan Sands
2007-02-22 10:34 ` Simon Wright
2007-02-22 10:53 ` Duncan Sands
2007-02-22 20:48 ` Simon Wright
2007-02-26 8:50 ` Florian Weimer
2007-02-26 20:59 ` Simon Wright [this message]
2007-02-22 2:05 ` Adam Beneschan
2007-02-22 2:34 ` Randy Brukardt
2007-02-22 3:19 ` Adam Beneschan
2007-02-22 11:04 ` [OT] Broken threading (was RE: real_time.clock is not monotonic) Alex R. Mosteo
2007-02-22 11:39 ` Georg Bauhaus
2007-02-22 14:52 ` Alex R. Mosteo
2007-02-23 0:43 ` Randy Brukardt
2007-02-23 10:11 ` Alex R. Mosteo
2007-02-25 0:39 ` [OT] Broken threading Björn Persson
2007-02-26 8:50 ` Alex R. Mosteo
2007-02-27 0:13 ` Randy Brukardt
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