CPU Spy by Brandon Valosek


(5 stars)


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Expert's Review

"Inside the guts of CPU"

Reviewed by / May 04, 2012

CPU Spy is a simple app that allows you to monitor your CPU usage

This is just an app for monitoring, you can't modify nor your CPU frequency either any other parameter. You can check how much time CPU spends in each frequency state. Your CPU isn't always at highest performance: its frequency varies depending on the process you're executing. For example, you're in lower CPU frequency when airplane mode than over WiFi. You're in the lowest CPU frequency levels when, what's more, display is off.

CPU Spy shows 6 states: 1000Mhz, 800Mhz, 400Mhz, 200Mhz, 100Mhz and deep sleep. What's more it sows how many time you spend in each frequency and how much it represents out of the total. It also shows total state time and kernel info. You can reset/restore timers anytime.

In summary, an useful tool to keep track of what's going on your device's heart. Recommendable.

Tags: cpu spy, cpu spy apk, cpu spy deep sleep, cpuspy, cpu deep sleep, cpuspy deep sleep, cpu sleep, cpu spy source, how does cpu spy work, deep sleep cpu.

Developer's original description available here
This is a simple app to display the time the CPU spends in each frequency state. This can be a useful tool in diagnosing battery problems or tweaking your over-clock settings.

It also displays the current kernel information.

Source: https://github.com/bvalosek/cpuspy
XDA Developers thread: http://forum.xda-developers.com/showthread.php?t=1011497

Recently changed in this version

-Display total state time
-Massive code cleanup
-Fix duration overflow bug
-Removed read-as-root attempt when unable to access states file due to instability
-Better tablet support (still work to do, though)

Lists with CPU Spy

Some lists where this application appears: Reviewed by Emmanuel Lund.

Screenshots CPU Spy
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View bigger - CPU Spy for Android screenshot
Comments and ratings for CPU Spy
  • (72)

    by Swastik Dhamija on 15/06/2014

    Very light app. It accurately calculates the time CPU spends in each state and hence helps to relate to the battery consumption. Perfect app ^_^

  • (72)

    by Jason Cloete on 26/05/2014

    Does what it says and has no ads. Must have.

  • (72)

    by Doron L on 04/05/2014

    I have an 8 core note 3 with 1.9 Ghz clock, and the app says the phone uses only 650Mhz max clock speed...

  • (72)

    by Kishan Govinda on 03/05/2014

    Can anyone explain me what this app is all about as i am unable to figure it out..i hve installed this app and it shows different layers like 700 mhz 248 mzh,, sleep..as far as the reviews are concerned after reading a few i got to the conclusion that the battry life is better when the fone is in dead sleep..but how to achieve it.what is the use of reseting timers can anybody explain..most of u ha

  • (72)

    by Subhomay Ghosh on 12/04/2014

    Not working on my HTC Desire x

  • (72)

    by Tariq Khan on 05/04/2014

    Must have app

  • (72)

    by Xiaozhang Zhu on 01/04/2014

    Simple but steady

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