W dniu 2010-12-30 18:47, Ted Unangst pisze:
On Thu, Dec 30, 2010 at 8:47 AM, RLW<seran...@o2.pl> wrote:
index %time self descendents called+self name index
[1] 83.9 0.00 359.49 sched_idle [1]
You spent> 80% in idle. So while forwarding all that traffic the box was
mostly idle.
although kernel profiling stats show that system spends 80% time in idle,
top during the iperf test shows:
load averages: 0.40, 0.16, 0.11 15:43:02
27 processes: 1 running, 25 idle, 1 on processor
CPU states: 0.6% user, 0.0% nice, 77.6% system, 21.8% interrupt, 0.0%
I forget if the profile counts interrupts as coming from idle. If
you're mostly forwarding traffic, the idle loop will be the top
function on the stack just about always.
any new ideas about where the problem is and how to fix it?
best regards,
RLW
