grab from my box running some network io. top - 18:14:59 up 51 min, 1 user, load average: 1.68, 0.61, 0.56 Tasks: 61 total, 2 running, 59 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0% us, 19.6% sy, 0.0% ni, 10.7% id, 46.4% wa, 0.0% hi, 23.2% si i guess that the "wa" is the time spent on wait io to finish. then will these cpu cycles available for other tasks if there are other task need cpu at that time? and is this "wait" another kind of "idle"? ps, i have my e1000 NAPI enabled, so is this why "hi" is always 0? thanks! Ming On Tue, 2006-06-13 at 09:00 -0400, Ming Zhang wrote: > thx! > > On Tue, 2006-06-13 at 16:25 +0700, Mulyadi Santosa wrote: > > Hi... > > > > > One more question, what is the difference from HI and SI? > > > > Hard interrupt is interrupt that coming from hardware, or in other > > words, it is the total time the kernel spent to acknowledging hardware > > interrupt > > > > On the other hand, Soft Interrupt is actually softirq and "friends" > > (bottom halves that works in interrupt context). > > > > regards, > > > > Mulyadi > > > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/