This commit prints out the CPU time consumed by the grace-period kthread,
if the specified RCU flavor supports this notion.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
.../selftests/rcutorture/bin/kvm-recheck-rcuscale.sh | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh
index b582113178ac..f683e424ddd5 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh
@@ -40,6 +40,10 @@ awk '
sum += $5 / 1000.;
}
+/rcu_scale: Grace-period kthread CPU time/ {
+ cputime = $6;
+}
+
END {
newNR = asort(gptimes);
if (newNR <= 0) {
@@ -78,6 +82,8 @@ END {
print "90th percentile grace-period duration: " gptimes[pct90];
print "99th percentile grace-period duration: " gptimes[pct99];
print "Maximum grace-period duration: " gptimes[newNR];
- print "Grace periods: " ngps + 0 " Batches: " nbatches + 0 " Ratio: " ngps / nbatches;
+ if (cputime != "")
+ cpustr = " CPU: " cputime;
+ print "Grace periods: " ngps + 0 " Batches: " nbatches + 0 " Ratio: " ngps / nbatches cpustr;
print "Computed from rcuscale printk output.";
}'
--
2.40.1
