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Re: Another rfe: "cp" this time
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From: |
H. Peter Anvin |
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Subject: |
Re: Another rfe: "cp" this time |
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Date: |
Mon, 30 Apr 2012 21:15:26 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120329 Thunderbird/11.0.1 |
On 04/27/2012 08:35 AM, Pádraig Brady wrote:
>
> Yes, cp is bad for high latency links as it has a
> 32KiB buffer which it serially reads to and writes from.
>
Why this that, though? At least for file-to-file copy, it could
certainly do much better with mmap() + write().
32K is so 1990.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
- Re: Another rfe: "cp" this time,
H. Peter Anvin <=
- Re: Another rfe: "cp" this time, Pádraig Brady, 2012/05/01
- Re: Another rfe: "cp" this time, Bruce Korb, 2012/05/01
- Re: Another rfe: "cp" this time, Pádraig Brady, 2012/05/01
- Re: Another rfe: "cp" this time, Bruce Korb, 2012/05/01
- Re: Another rfe: "cp" this time, Pádraig Brady, 2012/05/01
- Re: Another rfe: "cp" this time, Bruce Korb, 2012/05/01
- Re: Another rfe: "cp" this time, Jim Meyering, 2012/05/02