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Diffstat (limited to 'doc/emacs/files.texi')
| -rw-r--r-- | doc/emacs/files.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/emacs/files.texi b/doc/emacs/files.texi index a57428230cc..990b8f16795 100644 --- a/doc/emacs/files.texi +++ b/doc/emacs/files.texi @@ -988,6 +988,20 @@ the polling interval through the variable @code{auto-revert-interval}. supported, @code{auto-revert-use-notify} will be @code{nil} by default. +@vindex auto-revert-avoid-polling +@vindex auto-revert-notify-exclude-dir-regexp + By default, Auto-Revert mode will poll files for changes +periodically even when file notifications are used. Such polling is +usually unnecessary, and turning it off may save power by relying on +notifications only. To do so, set the variable +@code{auto-revert-avoid-polling} to non-@code{nil}. However, +notification is ineffective on certain file systems; mainly network +file system on Unix-like machines, where files can be altered from +other machines. To force polling when +@code{auto-revert-avoid-polling} is non-@code{nil}, set +@code{auto-revert-notify-exclude-dir-regexp} to match files that +should be excluded from using notification. + One use of Auto-Revert mode is to ``tail'' a file such as a system log, so that changes made to that file by other programs are continuously displayed. To do this, just move the point to the end of |