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|
#!/bin/sh
# PCP QA Test No. 910
# Exercise online/offline state changes in the Linux kernel PMDA.
#
# Copyright (c) 2017 Red Hat.
#
seq=`basename $0`
# get standard environment, filters and checks
. ./common.product
. ./common.filter
. ./common.check
case $PCP_PLATFORM
in
linux)
;;
*)
_notrun "No Linux PMDA for platform $PCP_PLATFORM"
;;
esac
echo "QA output created by $seq"
status=1 # failure is the default!
trap "cd $here; $sudo rm -rf $tmp $tmp.*; exit \$status" 0 1 2 3 15
_filter()
{
sed \
-e '/^host:/d' \
-e '/^samples:/s/25/26/' \
# end
}
# real QA test starts here
mkdir $tmp.root
export LINUX_NCPUS=8
export LINUX_NNODES=1
export LINUX_STATSPATH=$tmp.root
cd $tmp.root
tar xzf $here/linux/meminfo-root-001.tgz
cd $here
echo "Running pmval in the background"
pmda=$PCP_PMDAS_DIR/linux/pmda_linux.so
pmval -f2 -w5 -t0.2sec -T5.5sec -L -Kclear -Kadd,60,$pmda,linux_init \
kernel.percpu.cpu.user > $tmp.out 2> $tmp.err &
echo pmval started: `date` >> $seq_full
pmsleep 1.75
echo "Mutating the CPU instance domain"
echo Initial /proc/stat contents: `date` >> $seq_full
ls -li $tmp.root/proc/stat >> $seq_full
cat $tmp.root/proc/stat >> $seq_full
# Take some processors offline
cp $tmp.root/proc/stat $tmp.orig
cp $tmp.root/proc/stat $tmp.stat
sed -e '/^cpu3 /d' -e '/^cpu7 /d' <$tmp.stat >$tmp.tmp
mv -f $tmp.tmp $tmp.root/proc/stat
pmsleep 1.75
echo Changed /proc/stat contents: `date` >> $seq_full
ls -li $tmp.root/proc/stat >> $seq_full
cat $tmp.root/proc/stat >> $seq_full
# re-enable all processors
mv -f $tmp.orig $tmp.root/proc/stat
echo Final /proc/stat contents: `date` >> $seq_full
ls -li $tmp.root/proc/stat >> $seq_full
cat $tmp.root/proc/stat >> $seq_full
echo .
wait # for reporting tool to complete (-T option)
echo Finished wait for pmval: `date` >> $seq_full
echo "Observed from running pmval:"
cat $tmp.out | tee -a $seq_full | _filter | uniq
cat $tmp.err >>$seq_full
# success, all done
status=0
exit
|
