https://bugzilla.redhat.com/show_bug.cgi?id=1069718
--- Comment #3 from Lennart Poettering <lpoetter(a)redhat.com> ---
The O(n^2) PropertiesChanged messages will not be generated anymore with
systemd git:
http://cgit.freedesktop.org/systemd/systemd/commit/?id=ff5f34d08c191c326c...
But I am working on a couple of more fixes to follow.
And again, the kernel interface of /proc/self/mountinfo forces us to do some
time O(n^2) things here, so we cannot really fix this without kernel support to
scale better than that: when you mount a thousand mounts, then this will in the
worst case generate a thousand POLLURG events to systemd, which will then read
in the worst case a thousand entries from /proc/self/mountinfo, each time. The
kernel interface would need have to tell us about invidiual mounts coming/going
if we want this to scale better than O(n^2) in the long run...
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