182 lines
7.3 KiB
Markdown
182 lines
7.3 KiB
Markdown
# inotify-info
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> Easily track down the number of inotify watches, instances, and which files are being watched.
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The Linux inotify system has a few issues [1][problem1][2][problem2] and it can be difficult to debug when you for instance run out of watches. Using this app should hopefully aid you in tracking down how many inotify watches, instances, and what files are being watched.
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## Screenshot
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## Build
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```
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$ make
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Building _release/inotify-info...
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---- inotify-info.cpp ----
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---- lfqueue/lfqueue.c ----
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Linking _release/inotify-info...
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```
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```
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$ CFG=debug make
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Building _debug/inotify-info...
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---- inotify-info.cpp ----
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---- lfqueue/lfqueue.c ----
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Linking _debug/inotify-info...
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```
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## Install
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The resulting executable will be at `_release/inotify-info`. You are free to
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copy the resulting executable to any suitable location in your `$PATH` or run
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`make install` to install to `/usr/local/bin`.
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## Run (Prints Summary)
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```
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$ _release/inotify-info
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------------------------------------------------------------------------------
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INotify Limits:
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max_queued_events: 16384
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max_user_instances: 128
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max_user_watches: 65536
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------------------------------------------------------------------------------
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Pid App Watches Instances
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2632 systemd 23 3
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2653 pulseaudio 2 2
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2656 dbus-daemon 2 1
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2987 dbus-daemon 1 1
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3056 xfsettingsd 56 1
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3068 xfdesktop 10 1
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3072 wrapper-2.0 6 1
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3091 xfce4-clipman 1 1
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3099 xiccd 1 1
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3343 xfce4-terminal 1 1
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3997 xfce4-appfinder 11 1
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4048 xdg-desktop-portal 1 1
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4086 xdg-desktop-portal-gtk 56 1
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205668 vivaldi-bin 8 1
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205705 vivaldi-bin 2 1
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------------------------------------------------------------------------------
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Total inotify Watches: 181
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Total inotify Instances: 18
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------------------------------------------------------------------------------
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```
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## Run with Appname Filter
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```
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$ _release/inotify-info xfce4
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------------------------------------------------------------------------------
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INotify Limits:
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max_queued_events: 16384
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max_user_instances: 128
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max_user_watches: 65536
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------------------------------------------------------------------------------
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Pid App Watches Instances
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2632 systemd 23 3
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2653 pulseaudio 2 2
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2656 dbus-daemon 2 1
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2987 dbus-daemon 1 1
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3056 xfsettingsd 56 1
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3068 xfdesktop 10 1
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3072 wrapper-2.0 6 1
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3091 xfce4-clipman 1 1
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94111050 [10304h]
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3099 xiccd 1 1
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3343 xfce4-terminal 1 1
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71048655 [10304h]
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3997 xfce4-appfinder 11 1
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94111468 [10304h] 15339430 [10304h] 14554799 [10304h] 70254617 [10304h] 70254684 [10304h] 16786993 [10304h] 14551253 [10304h] 14550430 [10304h] 70254647 [10304h] 70254646 [10304h]
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92275589 [10304h]
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4048 xdg-desktop-portal 1 1
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4086 xdg-desktop-portal-gtk 56 1
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205668 vivaldi-bin 8 1
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205705 vivaldi-bin 2 1
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------------------------------------------------------------------------------
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Total inotify Watches: 181
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Total inotify Instances: 18
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------------------------------------------------------------------------------
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Searching '/' for listed inodes... (8 threads)
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14550430 [10304h] /usr/share/applications/
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14551253 [10304h] /usr/local/share/
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14554799 [10304h] /usr/share/xfce4/
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15339430 [10304h] /usr/share/desktop-directories/
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16786993 [10304h] /usr/share/xfce4/applications/
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70254617 [10304h] /home/mikesart/.local/share/
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70254646 [10304h] /home/mikesart/.config/menus/
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70254647 [10304h] /home/mikesart/.config/menus/applications-merged/
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70254684 [10304h] /home/mikesart/.local/share/applications/
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71048655 [10304h] /home/mikesart/.config/xfce4/terminal/
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92275589 [10304h] /etc/xdg/menus/
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94111050 [10304h] /home/mikesart/.config/xfce4/panel/
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94111468 [10304h] /home/mikesart/.cache/xfce4/xfce4-appfinder/
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```
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## Run with Specific Pid(s)
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```
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$ _release/inotify-info 3997
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------------------------------------------------------------------------------
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INotify Limits:
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max_queued_events: 16384
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max_user_instances: 128
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max_user_watches: 65536
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------------------------------------------------------------------------------
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Pid App Watches Instances
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2632 systemd 23 3
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2653 pulseaudio 2 2
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2656 dbus-daemon 2 1
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2987 dbus-daemon 1 1
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3056 xfsettingsd 56 1
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3068 xfdesktop 10 1
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3072 wrapper-2.0 6 1
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3091 xfce4-clipman 1 1
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3099 xiccd 1 1
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3343 xfce4-terminal 1 1
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3997 xfce4-appfinder 11 1
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94111468 [10304h] 15339430 [10304h] 14554799 [10304h] 70254617 [10304h] 70254684 [10304h] 16786993 [10304h] 14551253 [10304h] 14550430 [10304h] 70254647 [10304h] 70254646 [10304h]
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92275589 [10304h]
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4048 xdg-desktop-portal 1 1
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4086 xdg-desktop-portal-gtk 56 1
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205668 vivaldi-bin 8 1
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205705 vivaldi-bin 2 1
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------------------------------------------------------------------------------
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Total inotify Watches: 181
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Total inotify Instances: 18
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------------------------------------------------------------------------------
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Searching '/' for listed inodes... (8 threads)
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14550430 [10304h] /usr/share/applications/
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14551253 [10304h] /usr/local/share/
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14554799 [10304h] /usr/share/xfce4/
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15339430 [10304h] /usr/share/desktop-directories/
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16786993 [10304h] /usr/share/xfce4/applications/
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70254617 [10304h] /home/mikesart/.local/share/
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70254646 [10304h] /home/mikesart/.config/menus/
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70254647 [10304h] /home/mikesart/.config/menus/applications-merged/
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70254684 [10304h] /home/mikesart/.local/share/applications/
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92275589 [10304h] /etc/xdg/menus/
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94111468 [10304h] /home/mikesart/.cache/xfce4/xfce4-appfinder/
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```
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## Run on Docker/podman
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```sh
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docker build . -t inotify-info
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docker run --rm --privileged -v /proc:/proc inotify-info
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```
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When running under [podman][podman] non-root mode, append `--ulimit
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nofile=65535:65535` to the `podman build` command.
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## Run on Nix(OS)
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```
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nix run nixpkgs#inotify-info
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```
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## Credits
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[lfqueue][lfqueue] is [BSD-2-Clause License][bsd]
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[problem1]: https://code.visualstudio.com/docs/setup/linux#_visual-studio-code-is-unable-to-watch-for-file-changes-in-this-large-workspace-error-enospc
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[problem2]: https://unix.stackexchange.com/questions/15509/whos-consuming-my-inotify-resources
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[lfqueue]: https://github.com/Taymindis/lfqueue
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[bsd]: https://github.com/Taymindis/lfqueue/blob/master/LICENSE
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[podman]: https://podman.io/
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