Re: Sequential sever?

From: Henrik Nordstrom <>
Date: Sat, 02 Oct 1999 22:15:54 +0200

James R Grinter wrote:

> oh, this is a shame - I've obviously not been following closly enough,
> recently. Is anyone looking at implementing in a different manner (eg
> multiple processes to schedule the reads/writes in a way akin to the
> dnsservers)?

Don't worry to much.

The current async-io code is there, but the design of it can't be
brought much further than it is. The current code quickly makes the CPU
a bottleneck.

Yes, there are activities in finding a suitable replacement, both for
the I/O and the actual storage.

What Alex refers to is that I have now officially ended my attempts in
getting the current async-io code to perform better and more stable in
high workloads, and will instead spend my time on a different approach
to the problem, when time permits that is.

The net effect is that the async-io in Squid 2.3 may not perform as well
or stable a in patched Squid-2.2, but in time there will be other
alternatives which hopefully perform better, even thou it may take some
time before everything is in place.

Henrik Nordstrom
Squid hacker
Received on Sat Oct 02 1999 - 15:49:36 MDT

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