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Re: Another rfe: "cp" this time

From: H. Peter Anvin
Subject: Re: Another rfe: "cp" this time
Date: Mon, 30 Apr 2012 21:15:26 -0700
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.


H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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