Julian Field mailscanner at
Wed Feb 18 15:04:26 GMT 2004

At 14:02 18/02/2004, you wrote:
>I have tried in the past to generate traffic that would provide me a decen
>idea of capacity.
>My production system is a dual 550 P4 with 512Mb RAM and SCSI Raid 0+1.
>I'm using tempfs and have made a number of tuning changes thanks to this
>list.  I am running a full contingent of MailWatch (on another machine) and
>my production MTA is running MySQL logging into the second server's db for
>I added a new domain the day before yesterday and ran my message volume up
>over 10X what it was processing.
>I ran almost 20K messages through the system that inline with
>what you guys have seen am I on the high side or the low side.  My machine
>took a beating, but kept on trucking.
>I did have a small bayes db corruption issue late last night...I ended up
>rebuilding from scratch and performance seems better today....
>Any feedback?

Give it some more RAM and increase the Max Children to about 10. It will
need at least 1Gb in total. That should improve throughput. The database
logging is quite an overhead.
Julian Field
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