Re: [exim] data-phase efficiency

Top Page
Delete this message
Reply to this message
Author: Philip Hazel
Date:  
To: Kjetil Torgrim Homme
CC: exim-users, Jeremy Harris
Subject: Re: [exim] data-phase efficiency
On Tue, 17 May 2005, Kjetil Torgrim Homme wrote:

> I don't think writability guarantees that a 8 KiB block can be written
> without blocking (think NFS).


Even if it could, how can you ask "will this write complete within 5
minutes?"

> I would worry more about the unaligned writes, but I think the proper
> fix (though painful to implement) is to make Exim use wireformat in its
> spool (ie. dot-stuffed and with CRLF intact)


You lose one way or another. Storing in local format (as it does)
requires conversion for SMTP receipt and delivery; storing in wire
format would require conversion for local receipt and delivery.


-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book:    http://www.uit.co.uk/exim-book