Re: [ANNOUNCE] 3.4.9-rt17

2012-08-24 Thread Tim Sander
Hi After fixing the realtime prios which got shuffled due to other irq thread names I just tested the realtime latency for interrupts on the i.mx35. With our own systemtimer which does not get into the way of the measurement interrupt this kernel has 30µs worst time (caveat: short measurement

Re: [ANNOUNCE] 3.4.9-rt17

2012-08-22 Thread Tim Sander
Hi Rt-Folks I just found out that the name of the rt irq of the fec device changed so it had the same rtprio as my measurement interrupt. With the rt prios fixed the performance seems to be roughly like the 3.0 kernel. If will give a further update if there are any findings. Best regards Tim

Re: [ANNOUNCE] 3.4.9-rt17

2012-08-22 Thread Tim Sander
Dear Linux-Realtimers I just had the time to test this realtime release. Due to time constraints this is the first test on the 3.4 rt series. The HW Platform i used for testing is a ARM PCM043 i.mx35 with some tweaks to decrease latency. One of them is using an interrupt to drive our system tim

[ANNOUNCE] 3.4.9-rt17

2012-08-16 Thread Steven Rostedt
Dear RT Folks, I'm pleased to announce the 3.4.9-rt17 stable release. This release is just an update to the new stable 3.4.9 version and no RT specific changes have been made. You can get this release via the git tree at: git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git