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Wednesday, April 17 • 10:00am - 11:00am
The Linux Perf Tool: New Features - Jiri Olsa & Arnaldo Carvalho de Melo, Red Hat

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This presentation will give an overview and current development stateof several new perf features, like:

  • Perf diff enhancements: describing newly added computation data comparison methods    ratio, delta and weighted diff plus introducing multiple perf data file comparison
  • Group leader sampling: Describing new way of getting group's samples
  • Callchains DWARF unwind: Moving towards libdwarf
  • Default precise event setup: Forcing precise event profiling whenever possible
  • Interval stat plotting: The stat command can now print event deltas at regular    time interval.

We will describe above features in detail and provide practical usage examples. In addition, this session will cover some 'want to have' features for the future, like: Event toggling event, Non-architectural events support the trace event library integration.

avatar for Jiri Olsa

Jiri Olsa

Senior Software Engineer, Red Hat
Jiri Osla started using Linux around year 2002 while in college and started to play directly with kernel while working for SDE by writing modules for monitoring SS7/IP networks. At that time, Osla became interested in ftrace and perf kernel subsystem and began to contribute patches. Osla left SDE in 2009 to work for RedHat full time as kernel generalist engineer in Brno office, Czech Republic. Osla currently divides work time between upstream perf work and perf maintaining in RHEL.

Wednesday April 17, 2013 10:00am - 11:00am
Cyril Magnin I

Attendees (10)

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