On 10/17/2005 05:42 PM Fillod Stephane wrote: > Hi Philippe, > > Sorry for the late report, Xenomai appears to work fine on a Freescale > e500 > board (MPC8541E) under Linux 2.6.13. Xenomai version was v1.9.9, ie. the > daily > snapshot as of today. Here are some preliminary figures (CPU 800MHz, Bus > 133MHz, > 32 kiB I-Cache 32 kiB D-Cache, 256 kiB L2): > > switch $ ./run > == Sampling period: 100 us > RTH| lat min| lat avg| lat max| lost > RTD| 3660| 3690| 8070| 0 > > kaltency $ ./run > RTH|----klat min|----klat avg|----klat max| overrun| > RTS| -7350| -5715| 6420| 0| > 00:03:17/00:03:17 > > latency $ ./run > == Sampling period: 100 us > RTT| 00:08:04 > RTH|-----lat min|-----lat avg|-----lat max|-overrun| > RTS| -6930| -4260| 8700| 0| > 00:08:06/00:08:06 > > Load for klatency/latency was ping flooding on FCC (piece of cake), > and cache calibrator. IMHO, we can do nastier.
Comparing the corrected latency figures (+9500ns) of your MPC8541E with my Ocotea-Board (AMCC 440 GX at 533 MHz) gives: Ocotea | 3575| 7438| 24474| 0| 00:10:50 MPC8541E | 2570| 5240| 18200| 0| This scales rather well with the CPU clocks 533/800. L1 and L2 caches and the memory interface seem almost identical. Wolfgang. _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
