On Tue, Apr 02, 2002 at 05:56:01PM -0500, Alan Brown wrote:
> On Tue, 2 Apr 2002, Randall Gellens wrote:
> 
> > Thus, after making the switch pre-existing messages in the spool will
> > have UIDs that contain a random element, while new messages won't.
> > So there shouldn't be a problem with downloading old mail again.
> 
> The question is what the CPU hit is like.

The more I research performance, the more I'm becoming aware that email
machines are nearly completely I/O bound.  I believe it would be worth
trading a fairly walloping CPU hit for fewer disk accesses (because
there is no longer a need to rewrite the spool to insert the UIDLs.)

> > However, there is a greater chance of duplicate UIDs, which means
> > that potentially some messages might not get downloaded (since they
> > seem to be the same as an earlier message to the client).
> 
> putting that in context, it was more of a problem with the older,
> shorted UIDLs, with current ones it should be unlikely even with a few
> thousand messages in the inbox on the client machine and the servefr.

Thanks for the clarification.

  -- Clifton

-- 
    Clifton Royston  --  LavaNet Systems Architect --  [EMAIL PROTECTED]
"What do we need to make our world come alive?  
   What does it take to make us sing?
 While we're waiting for the next one to arrive..." - Sisters of Mercy

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