A top clone, written in Rust. Inspired by both gtop and gotop
Note that the background you see is not part of the app, that's just because I use a slightly transparent terminal.
You can install by cloning and using cargo build --release, or download the pre-compiled binary in Releases. Note this needs the nightly toolchain if you are building.
You can currently install by cloning and building yourself. Note this needs the nightly toolchain if you are building.
Currently, I'm unable to really dev or test on MacOS, so I'm not sure how well this will work, if at all. I'll try to source MacOS hardware to test this application.
-h, --help to show the help screen and exit (basically has all of the below CLI option info).
-a, --avgcpu enables showing the average CPU usage on rustop.
-m, --dot-marker uses a dot marker instead of the default braille marker. This is useful for things like Powershell which display braille markers incorrectly.
-c, --celsius displays the temperature type in Celsius. This is the default.
-f, --fahrenheit displays the temperature type in Fahrenheit. This is the default.
-k, --kelvin displays the temperature type in Kelvin. This is the default.
-v, --version displays the version number and exits.
-r <RATE>, --rate <RATE> will set the refresh rate in milliseconds. Pick a range from 250ms to UINT_MAX. Defaults to 1000ms, and higher values may take more resources due to more frequent polling of data, and may be less accurate in some circumstances.
q, Ctrl-C to quit.
f to freeze updating. Press f again to unfreeze. Note updating will still continue in the background.
Up/k, Down/j, Left/h, Right/l to navigate between panels.
Shift+Up and Shift+Down scrolls through the list if the panel is a table (Temperature, Disks, Processes).
Esc to close a dialog window.
? to get a help screen explaining the controls.
dd to kill the selected process - I would highly recommend you to be careful using this, lest you accidentally kill the wrong process.
c to sort by CPU usage. Sorts in descending order by default. Press again to reverse sorting order.
m to sort by memory usage. Sorts in descending order by default. Press again to reverse sorting order.
p to sort by PID. Sorts in ascending order by default. Press again to reverse sorting order.
n to sort by process name. Sorts in ascending order by default. Press again to reverse sorting order.
I cannot guarantee whether they are 100% accurate. I'm using a technique I found online which seems to be a better indicator of process use percentage at the current time, rather than pulling from, say, ps (which is average CPU usage over the entire lifespan of the process). I found the options from the library I used to get other data (heim) to be a bit too inaccurate in my testing.
For reference, the formula I am using to calculate CPU process usage is along the lines of:
```rust let idle = idle + iowait; let non_idle = user + nice + system + irq + softirq + steal + guest;
let total = idle + nonidle; let prevtotal = previdle + prevnon_idle; // Both of these values are calculated using the same formula from the previous polling
let totaldelta : f64 = total - prevtotal; let idledelta : f64 = idle - previdle;
let finaldelta : f64 = totaldelta - idle_delta;
//...
// Get utime and stime from reading /proc/
Any suggestions on more accurate data is welcome! Note all other fields should be accurate.
As mentioned, this project is very much inspired by both gotop and gtop .
This application was written with the following libraries:
I was looking to try writing more things in Rust, and I love the gotop tool. And thus, this project was born.