On Sun, 8 Dec 2019 09:39:52 -0500
Tom Horsley <horsley1953(a)gmail.com> wrote:
The most reproducible one is claws-mail which always
takes 25 seconds to start, and the delay seems to be
something to do with dbus messages. Here's some
debug-monitor output that shows the delay:
sig 1575815215.835943 4294967295 org.freedesktop.DBus
<none> /org/freedesktop/DBus org.freedesktop.DBus
NameOwnerChanged mc 1575815240.865401 1 :1.8953
org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus
Hello mr 1575815240.865440 4294967295
Went from 15 to 40 sending that Hello. (Which seems to be just the
way you setup a dbus connection, so it isn't very exotic).
Anyone have any clue what might cause this? I tried loading
a bunch of debuginfo files and debugging, but it is all gibberish,
and the most I could tell was that it was waiting on a dbus reply
to a Hello message.
I have no answer for the delay, but as a point of reference, claws
starts within a second or two here on F31. It used to be faster.
Within the last 6 months to a year, I remember it starting in less than
a second. So, something is interfering on your system. From your
description, it sounds like it is waiting on something, a dependency
that isn't already loaded and is blocked by something else. What is
happening on top when the delay happens? How about iotop? Is there a
process hogging a lot of cpu or a lot of io?