# Check performance of programs

1. [GNU time](#gnu-time)
1. [Valgrind](#valgrind)
1. [Further readings](#further-readings)
   1. [Sources](#sources)

## GNU time

```sh
# On Mac OS X.
brew install 'gnu-time'
gtime -v pulumi preview
```

## Valgrind

```sh
valgrind --tool='massif' pulumi preview
ms_print 'massif.out.12345'
```

## Further readings

- [Valgrind]

### Sources

- [How can I measure the actual memory usage of an application or process?]

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[valgrind]: valgrind.md

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[how can i measure the actual memory usage of an application or process?]: https://stackoverflow.com/questions/131303/how-can-i-measure-the-actual-memory-usage-of-an-application-or-process