On Mon, 17 Dec 2001 20:33:23 -0800 Dan Wilder <[EMAIL PROTECTED]> wrote: > On Mon, Dec 17, 2001 at 06:39:54PM -0800, J C Lawrence wrote: >> On Mon, 17 Dec 2001 18:01:56 -0800 Dan Wilder <[EMAIL PROTECTED]> >> wrote:
>> Without those changes in place (more exctly, using the >> Debian/Linux defaults) a Dual PII-333 on the end of a Tier 2 T3 >> has regularly sustained just under 1,400 deliveries (to target >> MX) per minute for me. While I've not maintained that level for >> more than single digit minutes (not enough traffic) that sums to >> 80K messages per hour. I've been happy enough with those numbers >> for the box in question that I haven't looked further. > I began to see signs of thrashing some place between a couple of > thousand recipients, and 10,000. There was what appeared to be a > phase transition of sorts, above which waits began to predominate > and I believe delivery rate may have even gone down. <nod> The largest load I've thrown on that box was 10K spool entries with 50K RCPT TOs. A more typical load is 3K spool entries and 15K RCPT TOs from a single qrunner dump. (Yeah, I do 5 per on RCPT TOs and I hand moderate in messages in batches) At those levels I've not noticed any thrashing. > I'm not getting anything like 1400 deliveries/minute (I don't > think). A typical average for me (given that the box also does web duty and a bunch of other bits) is ~700 per minute (40K per hour), but that's when the spool is well stuffed with dead mail, PostgresQL is getting hit via Apache from other quarters, etc. 1,400/minute is more typical when running off a fairly clean slate with a pre-stuffed DNS cache. > I'll try measuring delivery rate during this week's large > announce-lists posting, then next week set disable_dns_lookups and > see what change there may be. Cool. BTW: I like David Schweikert's MailGraph tool for Postfix stat collection/graphing . Quite sweet if rather CPU intensive. http://people.ee.ethz.ch/~dws/software/mailgraph/ > The DSL does get to be pretty much of a nuisance to run vi on over > an ssh connection, when the list mail is going out. Hehn. I tend to SSH in to the firewall, then SSH to the target box with X11 forwarding turned on all the way so I can run XEmacs on the target and have it display locally... -- J C Lawrence ---------(*) Satan, oscillate my metallic sonatas. [EMAIL PROTECTED] He lived as a devil, eh? http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live. ------------------------------------------------------ Mailman-Users maillist - [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users
