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Betreff: Re: [R-sig-hpc] Quickest way to make a large empty file on disk?
Folks:
Asked this question some time ago, and found what appeared (at first) to be
the best solution, but I'm now finding a new problem. First off, it seemed
like ff as Jens
...@illinois.edu j...@illinois.edu
*An:* r-help r-help@r-project.org r-help@r-project.org,
r-sig-...@r-project.org
*Betreff:* [R-sig-hpc] Quickest way to make a large empty file on
disk?
R-helpers:
What would be the absolute fastest way to make a large empty file (e.g.
filled with all zeroes
-sig-...@r-project.org
*Betreff:* [R-sig-hpc] Quickest way to make a large empty file on
disk?
R-helpers:
What would be the absolute fastest way to make a large empty file (e.g.
filled with all zeroes) on disk, given a byte size and a given number
number of empty values. I know I can use writeBin
Uhr
*Von:* Jonathan Greenberg j...@illinois.edu j...@illinois.edu
*An:* r-help r-help@r-project.org r-help@r-project.org,
r-sig-...@r-project.org
*Betreff:* [R-sig-hpc] Quickest way to make a large empty file on
disk?
R-helpers:
What would be the absolute fastest way to make a large empty
gc()
*Gesendet:* Donnerstag, 03. Mai 2012 um 00:23 Uhr
*Von:* Jonathan Greenberg j...@illinois.edu
*An:* r-help r-help@r-project.org, r-sig-...@r-project.org
*Betreff:* [R-sig-hpc] Quickest way to make a large empty file on
disk?
R-helpers:
What would be the absolute fastest way to make
...@illinois.edu
*An:* r-help r-help@r-project.org, r-sig-...@r-project.org
*Betreff:* [R-sig-hpc] Quickest way to make a large empty file on
disk?
R-helpers:
What would be the absolute fastest way to make a large empty file (e.g.
filled with all zeroes) on disk, given a byte size and a given
-sig-hpc] Quickest way to make a large empty file on disk?
R-helpers:
What would be the absolute fastest way to make a large empty file (e.g.
filled with all zeroes) on disk, given a byte size and a given number
number of empty values. I know I can use writeBin, but the object
()
*Gesendet:* Donnerstag, 03. Mai 2012 um 00:23 Uhr
*Von:* Jonathan Greenberg j...@illinois.edu
*An:* r-help r-help@r-project.org, r-sig-...@r-project.org
*Betreff:* [R-sig-hpc] Quickest way to make a large empty file on disk?
R-helpers:
What would be the absolute fastest way to make a large empty file
Look at the man page for dd (assuming you are on *nix)
A quick google will get you a command to try. I'm not at my desk or I would as
well.
Jeff
Jeffrey Ryan|Founder|jeffrey.r...@lemnica.com
www.lemnica.com
On May 2, 2012, at 5:23 PM, Jonathan Greenberg j...@illinois.edu
Something like:
http://markus.revti.com/2007/06/creating-empty-file-with-specified-size/
Is one way I know of.
Jeff
Jeffrey Ryan|Founder|jeffrey.r...@lemnica.com
www.lemnica.com
On May 2, 2012, at 5:23 PM, Jonathan Greenberg j...@illinois.edu wrote:
R-helpers:
What
On May 2, 2012, at 6:23 PM, Jonathan Greenberg wrote:
R-helpers:
What would be the absolute fastest way to make a large empty file (e.g.
filled with all zeroes) on disk, given a byte size and a given number
number of empty values. I know I can use writeBin, but the object in
this case
On most UNIX systems this will leave a large unallocated virtual hole in the
file. If you are not bothered by spreading the allocation task out over the
program execution interval, this won't matter and will probably give the best
performance. However, if you wanted to benchmark your
-sig-hpc-boun...@r-project.org
[mailto:r-sig-hpc-boun...@r-project.org] On Behalf Of Jonathan Greenberg
Sent: Thursday, 3 May 2012 8:24 AM
To: r-help; r-sig-...@r-project.org
Subject: [R-sig-hpc] Quickest way to make a large empty file on disk?
R-helpers:
What would be the absolute fastest way
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