On Wed, Dec 08, 2004 at 10:43:26AM -0800, Ashok Raj wrote:
> On Wed, Dec 08, 2004 at 11:52:53AM -0600, Joel Schopp wrote:
>
> This is the test i use for regression testing on IPF. I havent read
> all the test senarious, but its important to test if irq will migrate to this new
> cpu, and also when the cpu will go away, we can handle without loss of work
> transparently.
>
> Attached is a simple shell script. The only one that is hard coded is the irq numbers
> which can be obtained from /proc/interrupts as well.
>
> SInce IPF we dont support boot cpu removal, (due to restriction with CPEI, btw
> this will go away when platforms support ACPI 3.0) the script doesnt really try
> removing cpu0.
>
> The script is a little flaky, i.e we dont check if current state is offline/online
> etc, it might be better to build those in if we need some robustness.
>
> In addition, i leave some time after an online, before i offline (in parallel
> there are ltptest and some make -j running for load) so we let some work be handled
> on this cpu as well before offlining.
>
>
> hope this helps.
>
> Cheers,
> ashok
>
Hi Ashok,
Is doing something horrendous like this ok?
Mark
--- do_cpu.orig 2004-12-08 13:43:37.000000000 -0800
+++ do_cpu 2004-12-08 14:58:14.000000000 -0800
@@ -5,6 +5,8 @@
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`
+IRQS=`grep -e [[:digit:]+]: /proc/interrupts | awk '{print $1}' | sed -e 's/://' | xargs`
do_clean()
{
@@ -25,7 +27,7 @@
migrate_irq()
{
MASK=$((1<<$1))
- for irq in 45 48 49
+ for irq in $IRQS
do
echo $MASK > /proc/irq/$irq/smp_affinity
done
@@ -53,13 +55,13 @@
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
