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Subject: Re: Performance of ext3 on large systems
From: Sean Neakums <sneakums@zork.net>
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In-Reply-To: <1045497374.12615.1.camel@phantasy> (Robert Love's message of
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commence  Robert Love quotation:

> On Mon, 2003-02-17 at 10:29, John Bradford wrote:
>
>> > ext3 doesn't implement noatime!?  Hurg...
>
> noatime is implemented.
>
>> Actually, it makes sense in a way - noatime only speeds up reads, not
>> writes, (access time is always updated on a write), whereas a
>> journaled filesystem is presumably intended to be tuned for write
>> performance.  So, for it's intended usage, not implementing noatime
>> shouldn't be a huge problem, although it would be useful.
>
> But updating the access time _is_ a write, even if its due to a read. 
> And using 'noatime' does help, and it is implemented.  I guess Andrew's
> statement was just misinterpreted, because this is what he said.

Ah, yes.  My bad.

-- 
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[|] Sean Neakums            | Size *does* matter.
[|] <sneakums@zork.net>     | That's why I use Emacs.
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