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rcutorture: Handle different mpstat versions 

The mpstat command recently added the %gnice column, which messes up
the cpu2use.sh script's idle-CPU calculations.  This commit therefore
uses $NF instead of $12 to select the last (%idle) column.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2014-12-10 17:42:16 -08:00
parent 917963d0b3
commit 94162c8daa
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/rcutorture/bin/cpus2use.sh
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@ -24,7 +24,7 @@
ncpus=`grep '^processor' /proc/cpuinfo | wc -l`
idlecpus=`mpstat | tail -1 | \
awk -v ncpus=$ncpus '{ print ncpus * ($7 + $12) / 100 }'`
awk -v ncpus=$ncpus '{ print ncpus * ($7 + $NF) / 100 }'`
awk -v ncpus=$ncpus -v idlecpus=$idlecpus < /dev/null '
BEGIN {
cpus2use = idlecpus;