Perf Sees Big Changes With Linux 3.7 Kernel
Written by Michael Larabel in Linux Kernel on 1 October 2012 at 07:34 PM EDT. 7 Comments
The perf performance counters sub-system and utility are seeing some mighty improvements with the Linux 3.7 kernel.

Ingo Molnar writes in the merge, "Lots of changes in this cycle as well, with hundreds of commits from over 30 contributors. Most of the activity was on the tooling side."

Among the Linux 3.7 perf changes is a new perf kvm analysis tool, a perf trace system-wide tracing tool, UProbes fixes, patches for making perf build on Android, extending the ftrace function utility to be dynamic, improved perf sched performance, event group parsing support, and much more.

On the infrastructure side of the Linux perf sub-system, there's also many improvements as outlined in the merge message.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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