You can get a huge performance boost by moving the mqueue to a ramdisk, but to avoid the risk of messages being lost due to a reset add a battery protected ramdisk card like those from Rocketcard. They are about $500 for a one gig card, $1,200 for a four gig.
If you want to test the performance gain before buying a card, and have enough ram to spare try moving the mqueue to a normal linux ramdisk for a day. John -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Aaron Paetznick Sent: Tuesday, March 16, 2004 4:49 PM To: [EMAIL PROTECTED] Subject: [Mimedefang] ramdisks on Linux It's become obvious that using ramdisks with MIMEDefang is very important. This might be a strange/silly question, but if I wanted to use a ramdisk for both the sendmail mqueue and the MIMEDefang work directory, would it be better to use two smaller, or one large ramdisk? Does using two separate ramdisks give the same performance benefit as using two separate physical disks? Also, does the speed of the RAM and memory controller directly affect the speed of the ramdisk? For instance, would a ramdisk on an Intel 7501 based machine running dual-channel DDR266 be slower than a ramdisk on an AMD Opteron 246 based machine (with an on-chip memory controller) using dual-channel DDR400? I'm sorry if this is too off topic for this list. --Aaron _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
