On Sun, 24 Nov 2013, Dewey Garrett wrote: > Date: Sun, 24 Nov 2013 17:08:11 +0000 (UTC) > From: Dewey Garrett <[email protected]> > Reply-To: EMC developers <[email protected]> > To: [email protected] > Subject: Re: [Emc-developers] Question re newer kernel > > > # 131124:10.05 > I successfully tested these kernel debs on top of a xubuntu-quantal > install on a lenovo sl510 (laptop) and built linuxcnc from git-master: > > $ lsb_release -idcr > Distributor ID: Ubuntu > Description: Ubuntu 12.10 > Release: 12.10 > Codename: quantal > > $ uname -a > Linux u51 3.4.55-rtai-1 #1 SMP PREEMPT Mon Aug 5 21:16:12 MDT 2013 i686 i686 > i686 GNU/Linux > > $ cat /proc/cmdline > BOOT_IMAGE=/vmlinuz-3.4.55-rtai-1 root=/dev/sda7 ro > > $ git l --oneline -1 > 519bb5d deb: provide build-arch and build-indep targets in debian/rules > > Some latency plots: > http://www.panix.com/~dgarrett/stuff/screenshots/latencyhistogram-rtai3.4.55.png > http://www.panix.com/~dgarrett/stuff/screenshots/latencyplot-rtai3.4.55.png
Its great to have a RTAI kernel that will run on newer hardware! One thing that I find bit odd about these latency plots is that they are not in fact latency plots but rather cycle-cycle jitter plots (they are basically a latency plot and its mirror image joined at close to 0) This accounts for the (artificial to my view) symmetry > > A long (>2000 secs) histogram run shows some spikes above 20uS > (but it is a laptop). > > No hardware is hooked to this machine but simulator inifiles > run ok. > > Thanks to the workers on this kernel. > dewey > -- > Dewey Garrett > > > ------------------------------------------------------------------------------ > Shape the Mobile Experience: Free Subscription > Software experts and developers: Be at the forefront of tech innovation. > Intel(R) Software Adrenaline delivers strategic insight and game-changing > conversations that shape the rapidly evolving mobile landscape. Sign up now. > http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
