On Sat, May 26, 2001 at 07:25:16PM +1000, Andrew Reilly wrote:
> One of my personal mail folders has 4400 messages in it, and
> I've only been collecting that one for a few years. It's not
> millions, but its a few more than the "500" that I've seen some
> discuss here as a reasonable limit (why is that reasonable?) and
> it's many many more than the 72 or so limit available in ADFS.
I realised as soon as I pressed the send button that my current
use of large directories for mail files doesn't actually involve
any random access: the directory is read sequentially to build
the header list.
It is quite concievable that a performance tweak to the IMAP
server could involve a header cache in a relational database of
some sort, and that would certainly contain references to the
individual files, which would then be accessed randomly.
/usr/ports/distfiles on any of the mirrors probably contains
upwards of 5000 files too, and there is a strong likelyhood that
these will be accessed out-of-order by ports-makefile-driven
fetch requests.
--
Andrew
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