Performance

http://engineering.twitter.com/ all sorts of system and software engineering info from Twitter. Also see http://twitter.com/about/opensource

http://www.westnet.com/~gsmith/content/postgresql/chkp-bgw-83.htm improvements to PostgreSQL that could be made by tuning wal/background writer processes

http://www.westnet.com/~gsmith/content/postgresql/TuningPGWAL.htm Notes about PostgreSQL WAL synchronizations methods

http://developer.postgresql.org/pgdocs/postgres/wal-configuration.html Notes about Write-Ahead Log, Check points and other IO configuration related to postgresql transaction log settings

http://wiki.secondlife.com/wiki/Message_Queue_Evaluation_Notes Second Life notes about Message Queue Systems

http://wiki.postgresql.org/wiki/Priorities#Prioritizing_I.2FO some info about managing/prioritizing resources (CPU/IO/RAM) under PostgreSQL from the project’s WIKI

http://en.wikipedia.org/wiki/CFQ notes about Linux IO Scheduler - CFQ [Completely Fair Queue] . Also see http://en.wikipedia.org/wiki/Noop_scheduler http://en.wikipedia.org/wiki/Anticipatory_scheduling http://en.wikipedia.org/wiki/Deadline_scheduler

http://www.linuxjournal.com/article/6931 Kernel Korner - I/O Schedulers

http://www.randombugs.com/linux/mysql-postgresql-benchmarks.html yet another mysql vs postgresql benchmark using “OSDB”. Small difference between the two, but consider that benchmark was done on 2-way SMP, 3GB ram, 1 SATA DISK and a small dataset.

http://vegan.net/lb/archive/11-2009/0022.html discussion on LB-L (load balancing mailing list) about load-balancer performance benchmarks, vendor’s BS and so on.