All generalizations are incorrect Charles Suresh's blog

Thursday Apr 09, 2009

A map is a lifesaver when embarking down unfamiliar territory. When I recently started working on ZFS performance (in the context of MySQL usage), I needed a code flow chart to know what parts I needed to focus on within ZFS. Take a look at the map of ZFS I generated to help me along the way.[Read More]

Tuesday May 06, 2008

uperf is a network performance evaluation tool which is being open sourced by Sun today. Take a look at how I used it to compare network "ping-pong" traffic rate scaling on Solaris vs Linux.[Read More]

Wednesday Mar 12, 2008

Multi-core/Multi-thread CPUs can exacerbate scaling problems due to locking. A "mux" that pipelines work from multiple producers to a single consumer that avoids high lock hold times is discussed in this blog. Some of the flow control issues that needed to be addressed to deal with fast producers and slow consumers are also discussed along with the politics of source code changes to critical system software.[Read More]