Am 14.09.2012 um 13:53 schrieb Kenneth Lerman: > On 9/14/2012 1:33 AM, Michael Haberler wrote: >> Am 14.09.2012 um 03:36 schrieb Charles Steinkuehler: >> >>> -----BEGIN PGP SIGNED MESSAGE----- >>> Hash: SHA1 >>> >>> On 9/13/2012 2:13 PM, Michael Haberler wrote: >>>> in addition to the rt-preempt measurements reported before, I built >>>> a xenomai 'GPIO wiggler' in C, using the (actually working) xenomi >>>> hires timers, and ran it on an idle rpi, and then a few times >>>> under some load (2 compiles). >>>> >>>> I collated everything here: >>>> http://linuxcnc.mah.priv.at/rpi/rpi-rtperf.html > Looking at Michael's rpi-rtperf.html it occurred to me where the 125 > usec scheduling issue comes from. Telephone rate audio processing takes > place at 8000 samples per second. Disabling sound might get rid of this. > (Possibly by removing all sound related stuff from the kernel.)
still looking into this, but it looks more like a workaround for an USB problem: http://www.raspberrypi.org/phpBB3/viewtopic.php?t=7866&p=163446 -m > > Regards, > > Ken > > <stuff deleted> > > > ------------------------------------------------------------------------------ > Got visibility? > Most devs has no idea what their production app looks like. > Find out how fast your code is with AppDynamics Lite. > http://ad.doubleclick.net/clk;262219671;13503038;y? > http://info.appdynamics.com/FreeJavaPerformanceDownload.html > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://ad.doubleclick.net/clk;258768047;13503038;j? http://info.appdynamics.com/FreeJavaPerformanceDownload.html _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
