From: Avi Kivity <avi@redhat.com>
To: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
qemu-devel@nongnu.org, armbru@redhat.com, quintela@redhat.com
Subject: Re: [Qemu-devel] Re: [PATCH 2/5] Support human unit formats in strtobytes, eg. 1.0G
Date: Thu, 16 Sep 2010 12:46:53 +0200 [thread overview]
Message-ID: <4C91F59D.4000707@redhat.com> (raw)
In-Reply-To: <4C91F47F.6020800@redhat.com>
On 09/16/2010 12:42 PM, Jes Sorensen wrote:
> On 09/16/10 12:40, Avi Kivity wrote:
> > On 09/15/2010 09:31 PM, Jes Sorensen wrote:
> >> Floating point is just plain wrong.
> >
> > Why? If command-line processing becomes too slow, you can always buy a
> > math co-processor.
> >
>
> Because it's imprecise anyway
52 bits = 4PB. At that point some rounding will take place.
> and requires dealing with fp regs.
The compiler takes care of allocating registers.
> Besides, most users will probably hit their shell command line limit
> before hitting the problem with the decimals.
>
20 digits will overflow your divider.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2010-09-16 10:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-15 12:23 [Qemu-devel] [PATCH 0/5] Introduce strtobytes and make use of it Jes.Sorensen
2010-09-15 12:23 ` [Qemu-devel] [PATCH 1/5] Introduce strtobytes() library function to convert string to byte count Jes.Sorensen
2010-09-15 18:46 ` Andreas Färber
2010-09-15 20:50 ` Stefan Weil
2010-09-15 12:23 ` [Qemu-devel] [PATCH 2/5] Support human unit formats in strtobytes, eg. 1.0G Jes.Sorensen
2010-09-15 14:50 ` [Qemu-devel] " Juan Quintela
2010-09-15 19:29 ` Jes Sorensen
2010-09-15 15:45 ` Paolo Bonzini
2010-09-15 15:50 ` Anthony Liguori
2010-09-15 19:31 ` Jes Sorensen
2010-09-16 7:19 ` Paolo Bonzini
2010-09-16 10:14 ` Jes Sorensen
2010-09-16 10:40 ` Avi Kivity
2010-09-16 10:42 ` Jes Sorensen
2010-09-16 10:46 ` Avi Kivity [this message]
2010-09-16 11:09 ` Paolo Bonzini
2010-09-15 12:23 ` [Qemu-devel] [PATCH 3/5] Add support for 'o' octet (bytes) format as monitor parameter Jes.Sorensen
2010-09-15 12:23 ` [Qemu-devel] [PATCH 4/5] Switch migrate_set_speed() to take an 'o' argument rather than a float Jes.Sorensen
2010-09-15 12:24 ` [Qemu-devel] [PATCH 5/5] Remove obsolete 'f' double parameter type Jes.Sorensen
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