Re: svn commit: r184471 - in head/bin: cat cp

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From
Peter Jeremy <peterjeremy@optushome.com.au>
Date
3 Nov 2008 17:56:02
Subject
Re: svn commit: r184471 - in head/bin: cat cp
Message-ID
20081103075818.GK99398@server.vk2pj.dyndns.org


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On 2008-Nov-03 00:34:47 +0100, Ivan Voras <ivoras@freebsd.org> wrote:
>2008/10/31 Giorgos Keramidas <keramida@freebsd.org>:
>The difference between the best and the worst is 247 context switches
>(total, not per second).
>
>> It looks like it's probably worth pushing the limit up to 8 MB when we
>> have lots of memory :)
>
>Yes, it's an improvement, but who will ever notice? :)

Note that you will eventually hit a limit and start getting worse
performace: Once the buffer size exceeds the available free RAM
then cp/cat will start eating into inactive pages or (worse) active
pages for other processes.

--
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.


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