https://github.com/thoughtpolice/enable_arm_pmu

Enable user-mode access to ARMv7/Linux performance counters
https://github.com/thoughtpolice/enable_arm_pmu

Last synced: about 2 months ago
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Enable user-mode access to ARMv7/Linux performance counters

• Host: GitHub
• URL: https://github.com/thoughtpolice/enable_arm_pmu
• Owner: thoughtpolice
• License: mit
• Created: 2013-05-03T05:20:34.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2021-06-26T11:02:24.000Z (over 3 years ago)
• Last Synced: 2024-10-20T20:21:38.652Z (2 months ago)
• Language: C
• Homepage:
• Size: 105 KB
• Stars: 80
• Watchers: 11
• Forks: 49
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE.txt

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README

        
# User-mode access to ARM PMU cycle counters

This repository contains a kernel module and library.

ARM performance monitor units (PMUs) are only available on ARMv7 machines. In

general, this means you'll need a Cortex-A7 or better (A8, A9, A15, etc.)

More details are available in [my blog post][blog].

[blog]: http://neocontra.blogspot.com/2013/05/user-mode-performance-counters-for.html

# Testing

To compile, load, test and remove the module, you can just run:

```

$ sudo make runtests

```

## Tested on

  * Samsung Chromebook

    * Exynos 5 Dual, 1.7gHz Cortex-A15

    * Ubuntu 13.04

  * ODROID-U2

    * Exynos 4 Quad, 1.7gHz Cortex-A9

    * Ubuntu/Linaro 12.10 derivative

TBD: PandaBoard.

# Join in

Be sure to read the [contributing guidelines][contribute]. File bugs

in the GitHub [issue tracker][].

Master [git repository][gh]:

* `git clone https://github.com/thoughtpolice/enable_arm_pmu.git`

There's also a [BitBucket mirror][bb]:

* `git clone https://bitbucket.org/thoughtpolice/enable_arm_pmu.git`

# Authors

See [AUTHORS.txt](https://raw.github.com/thoughtpolice/enable_arm_pmu/master/AUTHORS.txt).

# License

MIT. See

[LICENSE.txt](https://raw.github.com/thoughtpolice/enable_arm_pmu/master/LICENSE.txt)

for terms of copyright and redistribution.

[contribute]: https://github.com/thoughtpolice/enable_arm_pmu/blob/master/CONTRIBUTING.md

[issue tracker]: http://github.com/thoughtpolice/enable_arm_pmu/issues

[gh]: http://github.com/thoughtpolice/enable_arm_pmu

[bb]: http://bitbucket.org/thoughtpolice/enable_arm_pmu