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torture: Print run duration at end of kvm.sh execution

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Yes, you can mentally subtract the timestamps, but this commit makes
the computer do this work.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2020-11-22 09:55:34 -08:00
parent 452613719e
commit 0bcca18348
2 changed files with 39 additions and 0 deletions
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33
tools/testing/selftests/rcutorture/bin/functions.sh
View file

@ -108,6 +108,39 @@ configfrag_hotplug_cpu () {
grep -q '^CONFIG_HOTPLUG_CPU=y$' "$1"
}
# get_starttime
#
# Returns a cookie identifying the current time.
get_starttime () {
awk 'BEGIN { print systime() }' < /dev/null
}
# get_starttime_duration starttime
#
# Given the return value from get_starttime, compute a human-readable
# string denoting the time since get_starttime.
get_starttime_duration () {
awk -v starttime=$1 '
BEGIN {
ts = systime() - starttime;
tm = int(ts / 60);
th = int(ts / 3600);
td = int(ts / 86400);
d = td;
h = th - td * 24;
m = tm - th * 60;
s = ts - tm * 60;
if (d >= 1)
printf "%dd %d:%02d:%02d\n", d, h, m, s
else if (h >= 1)
printf "%d:%02d:%02d\n", h, m, s
else if (m >= 1)
printf "%d:%02d.0\n", m, s
else
print s " seconds"
}' < /dev/null
}
# identify_boot_image qemu-cmd
#
# Returns the relative path to the kernel build image. This will be

6
tools/testing/selftests/rcutorture/bin/kvm.sh
View file

@ -47,6 +47,9 @@ cpus=0
ds=`date +%Y.%m.%d-%H.%M.%S`
jitter="-1"
startdate="`date`"
starttime="`get_starttime`"
usage () {
echo "Usage: $scriptname optional arguments:"
echo " --allcpus"
@ -548,6 +551,9 @@ then
else
# Not a dryrun, so run the script.
sh $T/script
ret=$?
echo " --- Done at `date` (`get_starttime_duration $starttime`)"
exit $ret
fi
# Tracing: trace_event=rcu:rcu_grace_period,rcu:rcu_future_grace_period,rcu:rcu_grace_period_init,rcu:rcu_nocb_wake,rcu:rcu_preempt_task,rcu:rcu_unlock_preempted_task,rcu:rcu_quiescent_state_report,rcu:rcu_fqs,rcu:rcu_callback,rcu:rcu_kfree_callback,rcu:rcu_batch_start,rcu:rcu_invoke_callback,rcu:rcu_invoke_kfree_callback,rcu:rcu_batch_end,rcu:rcu_torture_read,rcu:rcu_barrier