Hi Gilles, Gilles Chanteperdrix wrote: > in Xenomai repository (trunk and v2.3.x branch), you will find > adeos-ipipe-2.6.20-arm-1.7-03.patch, the latest version of the I-pipe > patch for ARM. In addition to merging support for two new boards (ixp4xx > and at91sam926x), this patch adds a few important features: > - the at91 patch now applies after the I-pipe patch with no reject ; > - it is now possible for Xenomai to preempt Linux during the mm switch, > which should improve Xenomai scheduling latency significantly; > - Xenomai is now able to access directly I-pipe tsc emulation in > user-space, providing a low overhead timing facility to user-space > applications. > > Before including this patch in a new release, and because I could only > test the patch on at91rm9200, we would like people to test the patch on > their hardware and give us feedback about the stability and performance. > In order to adequately stress-test Linux mm context switch, please use > something along the lines of the attached test_switch.c.
Finally, I found the time to give adeos-ipipe-2.6.20-arm-1.7-03.patch a try on our S3C2440-based board. At first sight, everything runs stable. The latency test shows noticeable better results although I didn't run it long enough to give a final judgement. I came across some issues for which I will prepare patches very soon. -- Sebastian _______________________________________________ Adeos-main mailing list [email protected] https://mail.gna.org/listinfo/adeos-main
