This page provides some benchmark comparisons of sys_metrics against other crates.
The benchmarks were performed on an i7-8750H running Windows 11 WSL2. As a result this does only reflect performance on Linux.
Note that I only listed the benchmarks that were comparable, some benchmarks from heim, sys_metrics, ... are not present in the others.
| sys_metrics | heim | rust_psutil | |
|---|---|---|---|
| cpu_logical_count | 12.714 ns | 228.28 ns | 865.69 ns |
| cpu_physical_count | 149.42 us | 225.26 us | 177.73 us |
| cpu_frequency | 11.837 us | 136.79 us | x |
| cpu_stats | 11.045 us | 74.028 us | x |
| cpu_times | 9.5326 us | 198.55 us | 15.485 us |
| disk_io | 56.766 us | 263.63 us | 124.44 us |
| disk_io_physical | 119.05 us | 2.2577 ms | x |
| disk_partitions | 1.1598 ms | 238.11 us | 95.982 us |
| disk_partitions_physical | 50.970 us | 343.04 us | 96.378 us |
| host_info | 854.26 ns | 887.65 ns | 501.43 ns |
| logged_users | 1.2781 us | 5.0848 us | x |
| memory | 7.0961 us | 79.720 us | 25.918 us |
| swap | 409.02 ns | 102.94 us | 94.424 us |
| net_io | 14.387 us | 206.43 us | x |
| net_io_physical | 409.02 ns | 102.94 us | x |
Due to the particular setup of sysinfo, I've decided to create a different category to compare both.
| sys_metrics | sysinfo | sys_metrics methods | |
|---|---|---|---|
| refresh_cpu* | 20.578 us | 1.545 ms | get_cpustats + get_cputimes |
| refresh_disks | 1.159 ms | 1.268 ms | get_partitions |
| refresh_memory | 7.409 us | 9.584 us | get_memory + get_swap |
| refresh_networks | 14.387 us | 157.39 us | get_ionets |
| refresh_users | 5.3504 us | 193.49 us | get_users |
* refresh_cpu: sysinfo also collects statistics per processor, so it has a lot more work to do, which may explain the big difference in speed. Therefore I don't consider sys_metrics as faster than sysinfo.
If something is not correct in any of these benchmarks, feel free to open an issue and we will discuss it :)