[EMAIL PROTECTED] wrote: > i've got a dual-cpu machine running linux. i'm looking at sar reports > for the box and can't really understand what happens -- the machine > services all interrupts at CPU0 (actually the first hyperthreaded > part of CPU0). > > is this supposed to be normal? > > here is how the interrupts were reported just before a major crash: > > > > 21:30:48 PM CPU i000/s i001/s i002/s i008/s i011/s i014/s i027/s > i028/s i029/s i030/s 21:30:58 PM 0 99.90 0.00 0.00 0.00 0.00 0.00 > 500.60 1.80 671.90 4.30 21:30:58 PM 1 0.00 0.00 0.00 0.00 0.00 0.00 > 0.00 0.00 0.00 0.00 21:30:58 PM 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 > 0.00 0.00 0.00 21:30:58 PM 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 > 0.00 0.00 21:31:08 PM 0 100.00 0.00 0.00 0.00 0.00 0.00 639.80 0.00 > 2570.20 4.10 21:31:08 PM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 > 0.00 0.00 21:31:08 PM 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 > 0.00 21:31:08 PM 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 > Average: 0 100.00 0.00 0.00 0.00 0.00 0.00 > 146.48 0.60 2671.07 1318.77 > Average: 1 0.00 0.00 0.00 0.00 0.00 0.00 > 0.00 0.00 0.00 0.00 > Average: 2 0.00 0.00 0.00 0.00 0.00 0.00 > 0.00 0.00 0.00 0.00 > Average: 3 0.00 0.00 0.00 0.00 0.00 0.00 > 0.00 0.00 0.00 0.00
Yes, quite normal. You have to manually assign interrupts to different processors if you want to spread the load.
