Ok, how about this, which keeps the same $CPU thingy I added and a
command line option for a list of irq's, since that can change?
For example:
./do_cpu "1 2 3"
On Wed, Dec 08, 2004 at 03:11:40PM -0800, Raj, Ashok wrote:
> Getting CPU is fine. Iam going to submit a patch that will not list an
> "online" file for cpu0 (if that is not removable), so basically
> selecting the ones that have "online" file would probably make sense.
>
> I don't think the intr part is ok, since /proc/interrupts list even
> percpu interrupts, there is nothing to migrate there, the numbers I
> picked are the ones that have scsi controller, eth and serial line
> irq's, the ones I picked to generate interrupt activity.
>
> Cheers,
> ashok raj
> - Open Source Technology Center
>
>
-------------- next part --------------
--- do_cpu.orig 2005-01-04 10:50:53.637229064 -0800
+++ do_cpu 2005-01-04 10:50:30.629726736 -0800
@@ -1,11 +1,15 @@
#!/bin/bash
+IRQS_TO_MOVE=$1
+
TMP_FILE=/tmp/cpu_$$
TIME="/usr/bin/time -o $TMP_FILE -f \"%e\""
TM_ONLINE=10 # Time delay after an online of cpu
TM_OFFLINE=10 # Time delay after offline of cpu
TM_DLY=30 # Time delay before start of entire new cycle.
+CPUS=`grep processor /proc/cpuinfo | grep -v " 0$" | awk '{print $3}' | xargs`
+
do_clean()
{
/bin/rm -rf $TMP_FILE
@@ -25,7 +29,7 @@
migrate_irq()
{
MASK=$((1<<$1))
- for irq in 45 48 49
+ for irq in $IRQS_TO_MOVE
do
echo $MASK > /proc/irq/$irq/smp_affinity
done
@@ -48,18 +52,20 @@
migrate_irq $1
}
+echo "Moving the following IRQs: $IRQS_TO_MOVE"
+
CNT=0
while :
do
CNT=$(($CNT+1))
echo "Loop Count $CNT"
- for cpu in 1 2 3
+ for cpu in $CPUS
do
do_offline $cpu
sleep $TM_OFFLINE
done
- for cpu in 1 2 3
+ for cpu in $CPUS
do
do_online $cpu
sleep $TM_ONLINE
