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OProfile

OProfile

OProfile is a low-overhead, transparent system-wide profiler for Linux, capable of instruction-grain profiling of all processes, shared libraries, the kernel and device drivers, via the hardware performance counters.

It consists of a kernel driver and a daemon for collecting sample data, and several post-profiling tools for turning data into information.

OProfile leverages the hardware performance counters of the CPU to enable profiling of a wide variety of interesting statistics, which can also be used for basic time-spent profiling. All code is profiled: hardware and software interrupt handlers, kernel modules, the kernel, shared libraries, and applications.

 OProfile 1.0.0

Price
Free to download

Size
1.3MB
License

GNU GPL v2

Developer
John Levon, Philippe Elie, Maynard Johnson

Website
oprofile.sourceforge.net

System Requirements
Linux kernel 2.2/2.4/2.6

Support:
Documentation, FAQ, Mailing Lists, SourceForge Project Page

Selected Reviews:
OS Reviews

Features include:

  • System-wide profiling
  • Performance counter support
  • Call-graph support
  • Low overhead
  • Post-profile analysis
  • System support
  • Support for dynamically compiled (JIT) code
  • operf program that allows non-root users to profile a specified individual process

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Last Updated Friday, July 03 2015 @ 03:03 PM EDT


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