[Fwd: NYC*BUG Tonight: Postfix; DCBSDCon starts tomorrow morning]

[George Rosamond <george%ceetonetechnology.com@localhost>]

FYI. . .


February 04, 2009
Postfix Performance Tuning

6:45 pm, Suspenders Restaurant
http://www.suspendersbar.com/location.php
Note new time!

Money can buy you bandwidth, but latency is forever!

John Mashey, MIPS

Victor will cover an array of issues connected to Postfix performance
tuning, including:
# Latency, concurrency and throughput
# Postfix input processing
# Queue file format rationale
# Input processing bottlenecks
# Pre-queue filters, milters, content filters
# Tuning for fast (enough) input
# Postfix on-disk queues, requirements and architecture
# What is a "transport"?
# Postfix "nqmgr" scheduler algorithm
# Per-destination in memory queues
# Per-destination scheduler controls
# SMTP delivery
# Understanding delay logging
# Transport process limits, concurrency limits
# Scaling to thousands of output processes
# Connection caching, TLS session caching, feedback controls

Speaker Bio

Victor Duchovni trained in mathematics, switched tracks to CS in 1980s
leaving Princeton with a master`s degree in mathematics and newly
acquired skills in Unix system administration and system programming. In
1990 moved to Lehman Brothers, worked on system management tooling, and
network engineering. Ported "Moira" from MIT to Lehman, built efficient
build systems that predated (and partly inspired) Jumpstart. In 1994
joined ESM to market "CMDB" tools to enterprise users, but this did not
pan out, in the mean time learned Tcl, and contributed bunch of patches
to the 7.x early 8.x TCL releases. In 1997 returned to New York, working
in IT Security at Morgan Stanley since late 1999. At Morgan Stanley,
developed a hobby in perimeter email security, becoming an active
Postfix user and very soon contributor in May of 2001. In addition to
many smaller feature improvements, contributed initial implementation of
SMTP connection caching, overhauled and currently maintain LDAP and TLS
support. Made significant design contributions to queue manager in
collaboration with Wietse and Patrik Raq. In 2.6 contributing support
for TLS EC ciphers and multi-instance management tooling, ideally also
TLS SNI if time permits.

*       *       *

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