[winswitch] windows xpra client CPU usage
tmesposito00 at gmail.com
Thu Nov 17 15:47:54 GMT 2016
On Thu, Nov 17, 2016 at 12:21 AM, Antoine Martin <antoine at nagafix.co.uk>
> Please don't top post.
> On 17/11/16 12:14, Thomas Esposito wrote:
> > I'm pretty sure that I have audio disabled on the server side,
> There are 3 possible values for the "speaker" option: on, off, disabled.
> If you disable it server side, the client cannot enable it.
> > but I'll check again tomorrow.
> > Do I have to do anything special to disable audio
> > on the client side?
> There are many ways of doing this on the client side, you can add:
> * "--speaker=off" to you command line, as a one-off.
> * "speaker=off" to your connection file if you use one (for that host)
> * "speaker=off" to your user settings (affects all connections)
> * "speaker=off" to your global xpra settings (affects all users)
> * turn it off using the system tray at runtime
Both speaker and microphone are set to disabled. Accordingly, they are both
"grayed out" on the client because they are disabled on the server.
Nevertheless, I still have a constant CPU usage of 5% to 7%. I don't know
if this matters, but since I have a reasonable high-bandwidth connection to
the server, I'm using zlib/lz4/lzo encoding which seems to result in
quicker response times.
Client version is beta 1.0 r14228, running on Windows 7.
Server is beta 1.0 r14232 running on RHEL 6.6.
FWIW, I observed the same behavior on 0.17.5.
> > On Nov 16, 2016 9:27 PM, "Antoine Martin via shifter-users"
> > <shifter-users at lists.devloop.org.uk
> > <mailto:shifter-users at lists.devloop.org.uk>> wrote:
> > On 16/11/16 22:41, Thomas Esposito via shifter-users wrote:
> > > My Xpra-Launcher.exe process is ALWAYS using from 5% to 10% of my
> > > capacity, even when my X applications are TOTALLY idle (i.e.
> > windows are
> > > out of focus and/or no redrawing from X clients).
> > My guess is that sound is enabled, sound forwarding uses a stream and
> > will consume network and CPU even when no sound is being played.
> > > This is a HUGE increase in CPU usage (and heat generation) on my
> > laptop
> > > relative to when I'm just doing simple browsing and email. For
> > example, if
> > > i'm just browsing and reading/writing email, my total CPU usage
> > stays under
> > > 1% to 2% and the laptop stays cool with the fan off. If I add the
> > > client to this, even though I'm not interacting with the X
> > > windows and they are not redrawing, my laptop starts getting hot
> > and the
> > > fan turns on. Note this is only with a single X application window
> > running.
> > Without sound, there should not be any network or CPU usage unless
> > application's window is refreshing.
> > (bar ping packets every few seconds, but those are tiny)
> > > In comparison, the TigerVNC viewer and x2go CPU usage is
> > effectively 0% if
> > > the windows are not updating.
> > TigerVNC does not do sound, or printing, and many other things!
> > Cheers
> > Antoine
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