# CPU

This command gives the maximum amount of memory used by `ls`:
```
/usr/bin/time -v ls
Maximum resident set size (kbytes): 1116
```

[`getrusage()`](https://man7.org/linux/man-pages/man2/getrusage.2.html) can be used in code.

# GPU

Nsight shows the used memory amount.

```
nsys profile --cuda-memory-usage=true ./tester --dim 1000 --target d gemm
```