Artem Kuchin wrote:
> Well, problem with top is that on dual 3GHZ box it alsway s
> shows 0% load when not loaded with real traffic (web traffic) no matter
> if it is polling of int handling.
Great, so your machine doesn't have any significant overhead
for the timer interrupt. That was your qu
Artem Kuchin wrote:
> Oliver Fromme wrote:
>> Artem Kuchin wrote:
>>> Oliver Fromme wrote:
Artem Kuchin wrote:
> 3) Is timer int really generated on each cpu? Am i really wasting
> cpu time on ~4000 ints per second?
4000 ints per second is rather nothing on any modern CPU.
Oliver Fromme wrote:
Artem Kuchin wrote:
Oliver Fromme wrote:
Artem Kuchin wrote:
3) Is timer int really generated on each cpu? Am i really wasting
cpu time on ~4000 ints per second?
4000 ints per second is rather nothing on any modern CPU.
Have a look at the top(1) display of an otherwise i
Artem Kuchin wrote:
> Oliver Fromme wrote:
> > Artem Kuchin wrote:
> > > 3) Is timer int really generated on each cpu? Am i really wasting
> > > cpu time on ~4000 ints per second?
> >
> > 4000 ints per second is rather nothing on any modern CPU.
> > Have a look at the top(1) display of an o
3) Is timer int really generated on each cpu? Am i really wasting cpu
time on ~4000 ints per second?
4000 ints per second is rather nothing on any modern CPU.
Have a look at the top(1) display of an otherwise idle
system. The "%interrupt" column should be zero, even if
it's processing 4000 time
Artem Kuchin wrote:
> I enabled device polling in the kernel, in nics and
> set HZ=1000.
HZ=1000 is the default anyway. You only need to set it
if you want a value other than 1000.
For example, on my notebook I have set HZ=600 because that
machine often used for various media playback (video).
Nikos Vassiliadis wrote:
On Tuesday 25 September 2007 12:13, Artem Kuchin wrote:
I have dual CPU with HT. If i turn on HT (and it does help in my
case) it shoud 2000 int x4 = 8000 ints per second. SO, i have saved
200 int/second from NIC and got myself 8000 ints/second from timer.
This kind of
On Tuesday 25 September 2007 12:13, Artem Kuchin wrote:
> I have dual CPU with HT. If i turn on HT (and it does help in my case)
> it shoud 2000 int x4 = 8000 ints per second. SO, i have saved 200
> int/second from NIC and got myself 8000 ints/second from timer.
This kind of load(200intrs/s) earn
Nikos Vassiliadis wrote:
On Monday 24 September 2007 20:58, Artem Kuchin wrote:
What i don't understand is why timer rate on each cpu is 1995? I
have set it to 1000, not 1995 or 2000. I have seen it showing 2000
on another box.
So
1) why not 1000?
I can only make assumptions about the doublin
On Monday 24 September 2007 20:58, Artem Kuchin wrote:
> > What i don't understand is why timer rate on each cpu is 1995? I have
> > set it to 1000, not 1995 or 2000. I have seen it showing 2000 on
> > another box.
> > So
> > 1) why not 1000?
I can only make assumptions about the doubling, and I
Anyone any clue on this issue:
Artem Kuchin wrote:
I enabled device polling in the kernel, in nics and
set HZ=1000.
How, when i do
omni2# vmstat -i
i see
interrupt total rate
irq14: ata0 47 0
irq15: ata1
I enabled device polling in the kernel, in nics and
set HZ=1000.
How, when i do
omni2# vmstat -i
i see
interrupt total rate
irq14: ata0 47 0
irq15: ata1 41 0
irq28: em0
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