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Improve advice around fs.inotify.max_user_watches #237

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merged 6 commits into from
Mar 17, 2016
Merged

Improve advice around fs.inotify.max_user_watches #237

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9fd132f
Remove md inline code tags from Linux inotify advice
Tyriar Mar 17, 2016
264d055
Increase advised inotify max_user_watches
Tyriar Mar 17, 2016
270aac4
Advice how to refresh inotify's config
Tyriar Mar 17, 2016
2fcc267
Add inotify config advice for ArchLinux
Tyriar Mar 17, 2016
31a1b7a
Fix grammar
Tyriar Mar 17, 2016
cd91289
Fix grammar
Tyriar Mar 17, 2016
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14 changes: 12 additions & 2 deletions docs/supporting/faq.md
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Expand Up @@ -140,12 +140,22 @@ sudo apt-get install gvfs-bin

### error ENOSPC

When you see this error, it indicates that the VS Code file watcher is running out of handles. To increase the limit open `/etc/sysctl.conf` and add this line to the end of the file:
When you see this error, it indicates that the VS Code file watcher is running out of handles. The current limit can be viewed by running:

```bash
cat /proc/sys/fs/inotify/max_user_watches
```

The limit can be increased to its maximum by editing `/etc/sysctl.conf` and adding this line to the end of the file:

```
`fs.inotify.max_user_watches=16384`
fs.inotify.max_user_watches=524288
```

The new value can then be loaded in by running `sudo sysctl -p`. Note that ArchLinux works a little differently, [view this page for advice](https://github.com/guard/listen/wiki/Increasing-the-amount-of-inotify-watchers).

While 524288 is the maximum number of files that can be watched, if you're in an environment that is particularly memory constrained, you may wish to lower the number. Each file watch [takes up 540 bytes (32-bit) or ~1kB (64-bit)](http://stackoverflow.com/a/7091897/1156119), so assuming that all 524288 watches are consumed that results in an upperbound of around 256MB (32-bit) or 512MB (64-bit).

### I can't see Chinese characters in Ubuntu

We're working on a fix. In the meantime, open the application menu, then choose **File** > **Preferences** > **User Settings**. Then set `editor.fontFamily` as shown:
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