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Sender: |
Revised LISTSERV forum <LSTSRV-L@CEARN> |
Subject: |
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From: |
Eric Thomas <ERIC@LEPICS> |
Date: |
Fri, 12 Jan 90 22:44:08 GMT |
Reply-To: |
Revised LISTSERV forum <LSTSRV-L@CEARN> |
Since I managed to escape a party tonight I've had time to code all the stuff
I planned to eventually add to the SIGNOFF * improvement. Please consider my
previous note amended as follows:
- The performance improvement now applies also to DELETE * (both single and
multiple user versions), QUERY * and, to a lesser extent, LIST. To avoid any
possible confusion, you are not saving any CPU time for a SIGNOFF or DELETE
where the deletion actually takes place; you're saving time and above all
I/O's when the user is not on the list, which is the most common case with
the * variety of these commands. Finally, the first time such a command is
issued after you've installed the changes, it's going to take much longer.
- Code has been added to the ADD/SIGNUP and SIGNOFF/DELETE commands to
minimize the risk that lists with a significant amount of daily
SIGNUP/SIGNOFF requests might end up costing more CPU time with the new
scheme than with the old one. Unfortunately this further optimization is not
possible under CMS3, ie it will cost more CPU time under CMS3. If this is a
problem for you, install a more recent version of CMS and/or read what the
LISTSERV statement of support says about CMS3.
Eric
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