Keith Burdis writes:
> On Tue 1999-07-13 (16:50), Russell Nelson wrote:
> > [EMAIL PROTECTED] writes:
> > >
> > > Wow. Looks like I do :-) Can you explain what it does?
> >
> > It modifies various programs to use hashed todo and intd directories.
> > This allows you to inject mail faster than qmail-send can deal with
> > it. Otherwise, you end up with really big directories with more than
> > 1,000 files. Once that happens, the kernel spends more and more time
> > locked reading/writing those directories. Also, if you're injecting
> > 100,000 messages all at once, make your conf-split bigger -- more like
> > 231 than the default 23.
>
> When does it make sense to apply the big-todo patch and increase the size of
> conf-split?
conf-split needs to be bigger if you have more than 23K distinct
messages (not addresses) in the queue. big-todo is needed if you're
injecting messages faster than qmail-send can process them.
> Is there any ballpark threshhold where these changes become useful?
My rule of thumb is that every directory should have <1000 files in it.
> Would it hurt performance in any way if I made these changes on a relatively
> low volume system?
Slightly, but not in any large manner.
--
-russ nelson <[EMAIL PROTECTED]> http://crynwr.com/~nelson
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