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I'm trying to benchmark a system with a software RAID-10 volume, backed by Fusion IO cards. Is it possible to display a Linux kernel thread dependency graph?

I would like to know how all the [xfs], [md], [md0_raid10], and [fct-smp] threads communicate and if any are presenting a bottleneck.

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I think you may have a look on SystemTap Flamegraph

It uses systemtap to get the data, and a perl script to create the graphs and dig into the syscalls of your application.

There is many more to share, but you should narrow your needs :)

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Wow, those flame graphs are very neat. Thanks for the suggestion. –  skohrs Nov 12 '13 at 19:04

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