2015-01-22 [☆] Improving Linux networking performance [LWN.net]
60 ns per packet equals 200 CPU cycles or 2 cache misses
performance ethernet linux

2014-05-16 [☆] http://www.slideshare.net/brendangregg/linux-performance-analysis-and-tools
via http://major.io/2014/04/30/helpful-linux-io-stack-diagram/
linux sysadmin performance

2014-02-17 [☆] Swiftstack's Worker Settings
swift performance

2013-08-30 [☆] OpenStack Swift
swift performance xfs

2012-03-07 [☆] Tricks + Seattle S3 Hiring Event
s3 performance