st 18. 11. 2020 v 10:16 odesílatel Gargoyle <g...@rgoyle.com> napsal:
> I've just made the switch from Ubuntu to Fedora 33 for my main desktop > system. Of the few teething problems I am going through, the initial > 8192 limit for fs.inotify.max_user_watches was probably causing the most > side effects. As a developer, I pretty much have netbeans open all day > and am forever tailing log files, so I hit this problem pretty much > straight away. > > After some digging around I found a script to list the current count of > watchers per process. The half-dozen worst offenders were:- > > INOTIFY > WATCHER > COUNT PID CMD > ---------------------------------------- > 4903 4620 /data/Applications/java/jdk-15/bin/java > -Djdk.home=/data/Applications/java/jdk-15 -classpath > /data/Applications/netbeans > 3573 3032 /usr/libexec/tracker-miner-fs-3 > 64 2022 /usr/lib/systemd/systemd --user > 47 2663 /usr/libexec/gsd-xsettings > 27 34846 /usr/share/atom/atom --type=renderer > --enable-experimental-web-platform-features > --field-trial-handle=123480363484759119 > 18 2812 /usr/bin/gnome-software --gapplication-service > > So netbeans + tracker-miner had pretty much consumed the entire pool > within an hour of starting the system. > > I've bumped the figure up to 65K by adding an entry to /etc/sysctl.conf > and asked on #fedora if anyone knew of the side effects of having a high > number - the only answers found were that approx 1K of unswapable kernel > memory is used per watcher. So this increase only puts an additional > 57MB of such memory usage onto my system. > > Are there any other side effects of this to worry about? > > If not, then perhaps the default should be significantly increased with > the aim of removing the problem for new users with modern desktop/laptop > machines which probably have 4GB+ RAM. I've not rebooted my machine > overnight and netbeans is now up to 13,000 watches and tracker-miner > upto 4,500. So in less than 24 hours I have exceeded 16K watches. > > Perhaps an new default value in the region of 32K - 64K would be more > appropriate? > > > -- Gargoyle > _______________________________________________ > devel mailing list -- devel@lists.fedoraproject.org > To unsubscribe send an email to devel-le...@lists.fedoraproject.org > Fedora Code of Conduct: > https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org > I have the exact same experience with Goland and PyCharm. I raised the limit to 524288 using this guide[1] and it works like a charm. [1]: https://confluence.jetbrains.com/display/IDEADEV/Inotify+Watches+Limit -- Ondřej Budai Software Engineer Red Hat <https://www.redhat.com> <https://www.redhat.com>
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