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Re: faster client pre-1.0: neon prefetching, multithreading

From: solo turn <soloturn99_at_yahoo.com>
Date: 2003-02-11 12:05:16 CET

do you have maybe an explanation wyh the ssh access method has the
same scalability behaviour than local access, and webdav seems to be
factor 3? is it just the asynchrounous, or is it the continouus
opening of a connection and get a little information from the server?


Date: Mon, 10 Feb 2003 15:16:56 -0500
Subject: Re: faster client pre-1.0: neon prefetching, multithreading
Content-Type: text/plain; charset=US-ASCII; format=flowed
From: Daniel Berlin <dberlin@dberlin.org>

> the following points could be time-consuming:
> - there is a lot of disk access and network wait time
> which seems not parallel, ie. multithreaded.
Easier to use AIO when it's available.

You can just aio_read the sockets/disk stuff as we discover what we
need, then aio_suspend in the routine that actually needs the data to

wait for it all to get there (or a timeout to occur).

> - especially urls and their properties seem to be fetched
> in order, without any function which gets an url,
> with the small properties, and the entries, and the
> small properties of the entries in one fetch.
Once again, you can just aio_read this stuff, then wait for it all to

finish at once, rather than wait on them one at a time.

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Received on Tue Feb 11 12:06:02 2003

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