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From: Szabolcs Nagy <nsz@port70.net>
To: musl@lists.openwall.com
Subject: Re: sign (in)consistency between architectures
Date: Thu, 2 May 2013 15:08:03 +0200	[thread overview]
Message-ID: <20130502130802.GP12689@port70.net> (raw)
In-Reply-To: <1367496757.28119.196.camel@eris.loria.fr>

* Jens Gustedt <jens.gustedt@inria.fr> [2013-05-02 14:12:37 +0200]:
> Am Donnerstag, den 02.05.2013, 12:13 +0200 schrieb Szabolcs Nagy:
> > 
> >   t = (double)clock();
> > 
> > (eg the time module in python does this) where interesting
> > low bits may get lost if clock_t is uint64_t
> 
> 
> *and* if the actual value is larger than (1ull << 50) or something
> like that.


larger than (1ull << 53)

so it does not matter if the counter always start from 0
at process startup

btw the times() fallback in the current clock code seems
to be wrong: it multiplies the result by 100 which would
mean 10000 Hz kernel clock tick


      reply	other threads:[~2013-05-02 13:08 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-01 17:05 Z. Gilboa
2013-05-01 18:00 ` Szabolcs Nagy
2013-05-01 20:00   ` Rich Felker
2013-05-01 22:41     ` Rich Felker
2013-05-02  1:39       ` Z. Gilboa
2013-05-02  2:47         ` Rich Felker
2013-05-02  8:12           ` Jens Gustedt
2013-05-02 10:13             ` Szabolcs Nagy
2013-05-02 12:12               ` Jens Gustedt
2013-05-02 13:08                 ` Szabolcs Nagy [this message]

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