Re: Squid performance wish-list

From: Chris Wedgwood <chris@dont-contact.us>
Date: Tue, 25 Aug 1998 17:02:53 +1200

On Tue, Aug 25, 1998 at 12:16:04PM +0800, Michael O'Reilly wrote:

> #1. We delete as often as we create.

Is this necessary?

Assuming the `peaks' times are short enough to to overwhelm the disk
and that cache_min/cache_max are far enough apart - can deletes not
be deferred a little while and perhaps batched?

> #3. We normally sit fairly close to full. (i.e. 95% used).

Or worse...

/dev/sdb1 4292072 4196407 51246 99% /mounts/cache0
/dev/sdc1 4059377 3994873 22495 99% /mounts/cache1

> #5. Most objects are 'soft', in that we're allowed to delete them
> almost any time we like if we really need to.

Some objects also need to unlinked as soon as all references to them
disappear.

> #6. We never do anything other than sequential reading or writing.

Provided we can seek/read - byte range utilization in browsers is
only going to become more common.

-cw
Received on Tue Jul 29 2003 - 13:15:52 MDT

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