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Re: [bug-diffutils] Multithreading support?

From: David Balažic
Subject: Re: [bug-diffutils] Multithreading support?
Date: Mon, 12 Aug 2013 21:53:07 +0200

On 12 August 2013 17:52, Paul Eggert <address@hidden> wrote:
> David Balažic wrote:
>> Was this ever considered?
> Not for cmp, no.  I'm surprised it's CPU-bound for you.
> What options were you using?
None. I ran "cmp /dev/sda /dev/sdb" after mirroring the disk.

On weaker CPUs like Atom (ARM?) this can be an issue, I guess?

More details: top reported 99% CPU usage of the cmp process.
iostat reported about 88 MB/s throughput, when simple reading would
give 130 MB/s.

I'll try the 64 bit version to see if it behaves differently.


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