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]
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]
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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]
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code codeflow dtrace flowchart graphviz linux mysql network niagara path performance perl solaris sysbench t2 t5220 uperf zfs
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This is pretty cool, can you please post the dtrac...