PerfMon - Performance Monitor
$2.49
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About PerfMon - Performance Monitor
PerfMon is a "floating" performance monitor tool. It shows on top of any other app you are running. Aside from being useful for powerusers wanting to know what their device is doing, it is a great tool to use during debugging and profiling.
PerfMon offers you four categories of metrics:
- Foreground App
- CPU
- Disk I/O
- Network I/O
PerfMon will also show you a new and unique-to-PerfMon performance metric: "CPU Capacity Usage". The CPU usage percentage traditionally used to measure and compare how much of the computational resources an app (or the entire device) is currently using does not make sense in a mobile multi-core setting. The capacity metric will take the CPU usage and scale it to what it would be if all cores were running at full capacity.
For example: if you have a 1.6ghz quad-core running a light app, it could be using 10% CPU with only one of the four cores active, and that core running at 200mhz. If you translate that to all four cores running at 1.6ghz, that app is using only 0.3% of total CPU capacity.
It's the only CPU Usage metric that makes any sense!
--- Foreground App ---
This window shows metric of the currently foreground (running and visible) application:
- Application title
- Application package name
- Memory usage total (in megabytes)
- Dalvik, Native, and Other memory usage (in megabytes)
- Overall CPU Usage (normal percentage and capacity)
- User and System CPU Usage (normal percentage)
--- CPU ---
This window displays overall CPU metrics:
- Capacity usage and current divider
- Overall CPU usage percentage
- Per-core CPU usage percentage and megahertz
--- Disk I/O ---
This window displays the disk I/O metrics of your MMC-based storage devices. Usually, mmcblk0 is your internal flash, and mmcblk1 is your removable SD-card. Please note that currently MTD-based storage is not supported by this display. Also note that the metrics displayed are raw I/O, so if the OS has I/O requests buffered/cached, you will not see anything happen here.
- Per-device read and write kilobytes/second
--- Network I/O ---
This window displays the network I/O metrics of your network interfaces.
- Per-interface transmit (Tx) and receive (Rx) kilobytes/second
PerfMon offers you four categories of metrics:
- Foreground App
- CPU
- Disk I/O
- Network I/O
PerfMon will also show you a new and unique-to-PerfMon performance metric: "CPU Capacity Usage". The CPU usage percentage traditionally used to measure and compare how much of the computational resources an app (or the entire device) is currently using does not make sense in a mobile multi-core setting. The capacity metric will take the CPU usage and scale it to what it would be if all cores were running at full capacity.
For example: if you have a 1.6ghz quad-core running a light app, it could be using 10% CPU with only one of the four cores active, and that core running at 200mhz. If you translate that to all four cores running at 1.6ghz, that app is using only 0.3% of total CPU capacity.
It's the only CPU Usage metric that makes any sense!
--- Foreground App ---
This window shows metric of the currently foreground (running and visible) application:
- Application title
- Application package name
- Memory usage total (in megabytes)
- Dalvik, Native, and Other memory usage (in megabytes)
- Overall CPU Usage (normal percentage and capacity)
- User and System CPU Usage (normal percentage)
--- CPU ---
This window displays overall CPU metrics:
- Capacity usage and current divider
- Overall CPU usage percentage
- Per-core CPU usage percentage and megahertz
--- Disk I/O ---
This window displays the disk I/O metrics of your MMC-based storage devices. Usually, mmcblk0 is your internal flash, and mmcblk1 is your removable SD-card. Please note that currently MTD-based storage is not supported by this display. Also note that the metrics displayed are raw I/O, so if the OS has I/O requests buffered/cached, you will not see anything happen here.
- Per-device read and write kilobytes/second
--- Network I/O ---
This window displays the network I/O metrics of your network interfaces.
- Per-interface transmit (Tx) and receive (Rx) kilobytes/second
All Application Badges
Paid
app
app
Android
2.2+
2.2+
Android app
App History & Updates
What's Changed
- Minor change to foreground app detection
- Minor change to foreground app detection
More downloads PerfMon - Performance Monitor reached 5 000 - 10 000 downloads
Price update Price changed from $2.10 to $2.49.
Price update Price changed from $2.49 to $2.10.
Version update PerfMon - Performance Monitor was updated to version 1.21
What are users saying about PerfMon - Performance Monitor
M
by M####:
by M####:
Amazing light weight monitor. Only issue is the foreground app monitor doesn't work in android M. I know he will get it tho, simular issue with L when it first came out. New blobs, new commands
Z
by Z####:
by Z####:
Why not support Android 7.1.1? Something can't be used (such as open/close all, Foreground app , etc.Please update the app!
Z
by Z####:
by Z####:
Doesn't work on Pixel .... Just shows offline , no response to emails
N
by N####:
by N####:
I have I have total control of my Android device I run it like it's a slave
S
by S####:
by S####:
Don't work no more
S
by S####:
by S####:
The floating monitors are promising but they're always in the way and they're too opaque. Limited to foreground/visible task makes it kind of a gimmick or proof-of-concept. If we're trying to see an elusive resource hog in action, it's not usually foreground/visible. This has promise, but it needs more intelligence. Unfortunately, it appears the app is no longer being enhanced.
S
by S####:
by S####:
Still a great app , IMO best one for these kind of apps can u add GPU please only thing its missing
Y
by Y####:
by Y####:
I have I have total control of my Android device I run it like it's a slave
E
by E####:
by E####:
Beautiful what I need
F
by F####:
by F####:
Probably the best floating app to monitor cpu usage. Immediately helped me determine whether I had a background process hogging cpu cycles. Other similar apps took longer for me to identify cpu hogs because they are not as accurate, lacking the useful "cpu capacity" gauge, which I've never seen implemented in any other apps except for Chainfire's. My only problem is that opening the "Foreground App" window crashes the app every time.
S
by S####:
by S####:
I love Chainfire, but the foreground app button kills this app every time. Hopefully an easy fix.
X
by X####:
by X####:
Nice tiny app, just not so much useful to me.
B
by B####:
by B####:
Shows me if the hardware is being used optimally.
O
by O####:
by O####:
Beautiful what I need
R
by R####:
by R####:
Excellent
R
by R####:
by R####:
Nice idea but wasteful of screen space (sparkline graphs would be much more useful, e.g. see how Cool Tool does it). Also crashed within minutes of installing.
R
by R####:
by R####:
Foreground app floating window won't open, FC now. All other ones work. I did just update a bunch of stuff including some Google apps. I'll see if I can isolate the offender. Nexus 6 rooted on latest Fi build of shamu
P
by P####:
by P####:
Amazing light weight monitor. Only issue is the foreground app monitor doesn't work in android M. I know he will get it tho, simular issue with L when it first came out. New blobs, new commands
R
by R####:
by R####:
Happy to use this handy application and grateful to have an android thanks in part for all of your effort in towards making android the best in my opinion.. Thank you sincerely.
R
by R####:
by R####:
But why not develop a bit further? Or no? Last update a year ago. I do agree that the overbloating is counter productive. Simplicity is what makes this app so great. And thanks for fixing that pop up "to buy the app" when already bought it.
R
by R####:
by R####:
Only works when opening one window after another, which is very cumbersome. Plz fix. SGN12.1 Lollipop
R
by R####:
by R####:
Of displayed information while being compact. Just needs to be touch through capable.
R
by R####:
by R####:
Excellent
L
by L####:
by L####:
I dont think I need this apk.. but being his ONLY paid app which I've yet to purchase..ibought it anyway.. to support the dev. Thx for the work.
M
by M####:
by M####:
Great app. Thnx again Chainfire!
R
by R####:
by R####:
I have I have total control of my Android device I run it like it's a slave
K
by K####:
by K####:
Good
M
by M####:
by M####:
Awesome.
M
by M####:
by M####:
Just deleted the free xda version to give some support and buy it, great work as always chainfire, only as well a +1 on transparent overlay and settings, but I'm pretty sure it will come soon anyway, the initial release can't have it all^^
M
by M####:
by M####:
Best util to monitor cpu usage. Is it possible to also show tegra 5th core usage?
D
by D####:
by D####:
Need to have widgets created, but still 5 stars without it.
H
by H####:
by H####:
Love Chainfire's work, happy to show my appreciation and purchase
M
by M####:
by M####:
You need every app Chain has ever thought of!! Buy it!!
M
by M####:
by M####:
Excellent job. Thanks for new and good ideas
M
by M####:
by M####:
CF KING
X
by X####:
by X####:
So far I'm satisfied with this app. Motorola Atrix *4G Samsung Galaxy Nexus
M
by M####:
by M####:
buying your apps because they are great and to support you for your work. thank you.
M
by M####:
by M####:
+1 for opacity.
M
by M####:
by M####:
Awesome!
by H####:
It would be great if the developer would update this app since it's been almost 2 years. Several updates and a major version of Android since last app update. . (1) I was never able to see the Disk I/O window work at all on Samsung S6 Edge or newer Samsung device. It never hooked in. Wifi connection stopped showing up with Nougat as well. . (2) It would be nice to be able to set opacity for all 4 windows and have the title bar for each also take the transparency/opacity setting to prevent burn-in on these amoled screens. Mine burned in one of the windows as I always placed it in the same corner.