aio_read template.

[David Collier-Brown]

Excellent point!  I'm about to put that logic into a (non-Samba)
program that uses a large copy-buffer, and could use a reduction
in latency.

--dave

Volker Lendecke wrote:
> On Wed, Jun 08, 2005 at 10:33:05AM -0400, David Collier-Brown wrote:
> 
>>	A 256K per-file buffer might be reasonable, but a 512
>>	of 1024K buffer per file sounds excessive at first glance (:-))
>>	If I were building a dedicated server for storing streaming
>>	data, or if my stripe width was 1024K, that might well change.
> 
> 
> Even if you could afford a meg of cache per file this would not help you very
> much, because then the latency of the first read call filling the cache gets
> way too large. You would have to satisfy the first read call directly and
> trigger an async cache filling read call.
> 
> Volker

-- 
David Collier-Brown,      | Always do right. This will gratify
Sun Microsystems, Toronto | some people and astonish the rest
davecb at canada.sun.com     |                      -- Mark Twain
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