BOUIN Alexandre wrote: > Same tests but for AT91SAM9263-EK board : > - one under DD load, latency set to 45µs > - another one under Calibrator load, latency set to 30µs > - and the last under Test_switch load, latency set to 45µs > Xeno-test traces are available and the end of this mail. > > We used kernel 2.6.20.13, Xenomai snapshot from 08/06/2007, > adeos-ipipe-2.6.20-arm-1.7-03.patch included plus 2.6.20-at91.patch. > > A little correction on macb and ipipe patch was needed : > - macb ethernet controler is not detected on startup > - we added some corrections to make 9263 usable under ipipe > - owing to changes in at91 patch (clk are now registered on startup) we made > a little correction for future adeos-ipipe-2.6.21-arm.patch. > > You will find all added patches attached to this mail. > <<adeos-ipipe-2.6.20-arm-AT91.patch>> <<2.6.20-at91-macb-9263.patch>> > <<adeos-ipipe-2.6.20-arm-AT91.patch>> > Latencies are a little worst than on other boards. We presume that it's due > to the large number of peripherals.
<pure theory without looking at details here> Every additional IRQ source can cause additional delays of your benchmarked event. All those IRQs may once in a while line up just in front of your RT-IRQ, delaying it yet a bit more. </end of theory> Jan
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