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# Profiling
## Sysprof
Typical profiling of JavaScript code is performed by passing the `--gjs` and
`--no-perf` options:
```sh
$ sysprof-cli --gjs --no-perf -- gjs script.js
```
This will result in a `capture.syscap` file in the current directory, which can
then be reviewed in the sysprof GUI:
```sh
$ sysprof capture.syscap
```
Other flags can also be combined with `--gjs` when appropriate:
```sh
sysprof-cli --gjs --gtk -- gjs gtk.js
```
#### See Also
* Christian Hergert's [Blog Posts on Sysprof](https://blogs.gnome.org/chergert/category/sysprof/)
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