IRQ smp_affinity
Hi,
I have installed fedora-2.6.9-1.681 on SMP 4 way processor(Intel(R) Xeon(TM) CPU 3.00GHz).
the output of
]#sar -A
CPU i000/s i001/s i002/s i008/s i012/s i014/s i169/s i185/s i193/s i201/s i209/s
07:00:01 PM 1 252.70 0.00 0.00 0.00 45.07 3.18 0.00 1.67 0.00 122.91 0.00
07:00:01 PM 2 252.70 0.10 0.00 0.00 2.23 4.24 0.00 0.25 0.00 369.25 0.00
07:00:01 PM 3 251.93 0.18 0.00 0.00 51.20 0.30 0.00 4.38 0.00 134.75 0.00
07:10:01 PM 0 269.43 0.97 0.00 0.00 21.67 2.00 11.26 1.73 0.00 306.23 0.00
07:10:01 PM 1 235.62 0.07 0.00 0.00 37.05 2.00 0.00 6.50 0.00 196.26 0.00
07:10:01 PM 2 252.53 1.16 0.00 0.00 2.20 1.82 0.00 4.24 0.00 486.52 0.00
07:10:01 PM 3 251.94 0.07 0.00 0.00 52.42 2.22 0.00 2.00 0.00 16.83 0.00
Average: CPU i000/s i001/s i002/s i008/s i012/s i014/s i169/s i185/s i193/s i201/s i209/s
Average: 0 253.18 0.39 0.00 0.00 4.97 0.60 6.88 3.11 0.00 N/A 0.00
Average: 1 251.70 0.22 0.00 0.00 24.67 3.92 0.00 1.77 0.00 N/A 0.00
Average: 2 252.45 0.43 0.00 0.00 2.15 3.95 0.00 2.14 0.00 N/A 0.00
Average: 3 252.23 0.18 0.00 0.00 26.94 0.57 0.00 2.48 0.00 N/A 0.00
when i tried to bind IRQ processing to specific CPU or number of CPUs by setting up smp_affinity,affinity value getting changed but within secs the sysetm randomly chaging with some other values..(for IRQ's on the system).
I think you undestood me.
Any help appreciated!
regards,
gangaraju.
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