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This is simply amazing. Tracing KVM using Dtrace is going to throw up some pretty useful and surprising results. And add ZFS on top that as well - with all its features (sp. dedup+COW) useful for virtualized hosting.

Anyone know if linux has any variant/clone of dtrace yet? (and no, not systemtap)



Paul Fox seems to have been working on a Linux DTrace port since 2008 (based on the directory listing). He blogs about his progress on DTrace (and other things) at http://crtags.blogspot.com/


Here's Bryan Cantrill, one of the original creators of DTrace, on the status of the port:

https://plus.google.com/105843697186982227624/posts/5uk5SHrh...




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