Displaying 2 results from an estimated 2 matches for "smp_afin".
2007 May 14
3
zaptel huge irq problem
...d lots of issues on forums concerning the sensibility of zaptel
with IRQs, and tried about everything: moving PCI slots, noapic and
acpi=off boot options, play with different kernel options:
iosched/preemption/timer/..., play with BIOS PCI options, change
priorities, PCI latencies, IRQ balance, smp_afinity, ................
but impossible to come up with anything correcting that problem.
Any idea about this? Is it possible to force the timer to ztdummy (RTC
timer) when you have a zap card plugged in? It's the only thing i could
try to make it work.
Thanks,
Fran?ois.
Just in case:
- Linu...
2006 Sep 16
2
Performance problem on a linux bridge used for shaping.
...ent
access. The machine is a dual Xeon 2.8GHz with HT. With 2.6.8 kernel
from debian (testing) and htb with u32 on, i usually get about 30-40%
software interrupts on CPU0 and CPU2, and without htb and u32, 10% less.
Now, if I boot with 2.6.17.9 kernel, first all irqs are on same CPU. I
managed with smp_afinity to "move" irq of one card to a different CPU.
In these circumstances, I have about 20% or a little less soft
interrupts on each CPU without shaping, but about 60-70% os soft
interrupts with shapping, and sometimes there is packet loss, also
dropped packets are shown on ifconfig. The ht...