Utility binary to sample the CPU usage of processes with a minimal overhead.
You can use one of the prebuilt binaries from the "Release" section.
Example:
loadtimer -s 60 -n 3 -t `pidof logd`Example output:
loadtimer -s 60 -n 3 -t `pidof logd`
Measuring CPU usage of PIDs [229]
3 sample(s) of 60s
| Process | CPU % | CPU % stddev | total mean | total stddev | utime mean | stime mean |
| logd | 1.03 | 0.05 | 10.33 | 0.47 | 1.67 | 8.67 |
| - logd.daemon | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| - logd.reader | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| - logd.writer | 0.33 | 0.05 | 3.33 | 0.47 | 1.33 | 2.00 |
| - logd.control | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| - logd.klogd | 0.07 | 0.05 | 0.67 | 0.47 | 0.33 | 0.33 |
| - logd.auditd | 0.47 | 0.05 | 4.67 | 0.47 | 0.00 | 4.67 |
| - logd.reader.per | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| - logd.reader.per | 0.03 | 0.05 | 0.33 | 0.47 | 0.00 | 0.33 |
| - logd.reader.per | 0.10 | 0.00 | 1.00 | 0.00 | 0.33 | 0.67 |
| - logd.reader.per | 0.03 | 0.05 | 0.33 | 0.47 | 0.33 | 0.00 |
| - logd.reader.per | 0.03 | 0.05 | 0.33 | 0.47 | 0.00 | 0.33 |
| - logd.reader.per | 0.03 | 0.05 | 0.33 | 0.47 | 0.00 | 0.33 |If you want to build from source, e.g. for Android:
cross build --target aarch64-linux-android --release; adb push target/aarch64-linux-android/release/loadtimer /system/bin/; adb shell chmod a+x /system/bin/loadtimerUsage:
> loadtimer --help
Usage: loadtimer [<pids...>] [-s <sample-secs>] [-n <num-samples>] [-i] [-t]
Measure CPU usage of processes.
Positional Arguments:
pids PIDs of processes to measure
Options:
-s, --sample-secs sample duration in seconds
-n, --num-samples number of sample points
-i, --interactive run in interactive mode
-t, --with-threads
with threads
--help display usage information