Re: [gentoo-user] systemd

[Alex Schuster <wonko@wonkology.org>]

Michael Schreckenbauer writes:

> Hi,
> 
> Am Dienstag, 30. August 2011, 13:56:44 schrieb Alex Schuster:
> > Alan McKinnon writes:
[...]
> > > What's your objection to dbus? It gives you a standard message
> > > bus, is small, light, consumes minimal resources and provides a
> > > nice standard way to do IPC. Probably easier than reinventing the
> > > wheel with named pipes and other bits over and over.
> > 
> > Except for me. dbus-daemon often uses 10-20% of my CPU according to
> > top.
> Mine idles most of the time, no CPU is used. My computer is running for
> ~6h now, dbus-daemon used less than 1.5s CPU time.

After a relogin, this is also true here at this moment, dbus-daemon uses 
about 4% of one of my two cores. After 26 days of uptime, its total CPU time 
is 1380 minutes, Followed by udisks-daemon with 990 minutes, and then mysqld 
with 25 minutes.

> > And
> > this morning, it was using about 750M of memory. Which is less than
> > kwin's and Kontact's usage, but still.
> 
> Strange. Mine uses only ~20MB.

Right now I have three dbus-daemon processes (one owned by messagebus, two 
owned by my user), with a total of 4.5M only. The excessive usage of 750M (I 
noticed this for the first time) probably was a memory leak. Like with KWin, 
where it always happens after some days of being logged in.

> > But I think the problem is on my side, I run KDE4 with only 8G of
> > memory, no wonder I need 1.7G of swap right now.
> > </rant>
> 
> I have only 4GB of memory, run kde4, swap is not used at all most of the
> time. There are still ~512MB free with ~1,3GB cached currently.
> I do have programs running :) firefox with some tabs, kdevelop with a
> project (~100.000 LOC), kmail, LibreOffice and 3 konsoles, each with some
> tabs open. I know, I am of no help at all, but I really wonder, why your
> numbers differ so significantly from mine.

I run some more applications. 9 Konsole tabs, two Dolphins, a Konqueror as 
file manager, Amarok, TV-Browser, Kontact, Chromium with 15 tabs, KMyMoney. 
That's what comes up after login, after a while of being logged in more 
stuff is running. Yesterday I had a Windows running in vmplayer, that may 
use 512M.
Right now, 4.7G of memory is needed (free -m, -/+ buffers/cache entry).

[Later]

Whoops, forgot to actually send this mail. Ten hours later I have another 
dbus-daemon process, owned by root, but memory their usage is the same. 
5250M of RAM are needed now altogether.

	Wonko