[PATCH tip/core/rcu 03/20] torture: Make kvm.sh "--dryrun sched" summarize number of builds

From: paulmck@kernel.org
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
	mingo@kernel.org, jiangshanlai@gmail.com,
	akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
	josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
	rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
	fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
	"Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH tip/core/rcu 03/20] torture: Make kvm.sh "--dryrun sched" summarize number of builds
Date: Wed,  6 Jan 2021 09:25:50 -0800	[thread overview]
Message-ID: <20210106172607.22816-3-paulmck@kernel.org> (raw)
In-Reply-To: <20210106172547.GA22404@paulmck-ThinkPad-P72>

From: "Paul E. McKenney" <paulmck@kernel.org>

Knowing the number of builds that kvm.sh will split a run into allows
estimation of the duration of a test, give or take build duration.
This commit therefore adds a line of output to "--dryrun sched" that
gives the number of builds that will be run.  This excludes "builds"
for repeated scenarios that reuse an earlier build.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 tools/testing/selftests/rcutorture/bin/kvm.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 1078be1..55a18a9 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -536,6 +536,10 @@ then
 	egrep 'Start batch|Starting build\.' $T/script |
 		grep -v ">>" |
 		sed -e 's/:.*$//' -e 's/^echo //'
+	nbuilds="`grep 'Starting build\.' $T/script |
+		  grep -v ">>" | sed -e 's/:.*$//' -e 's/^echo //' |
+		  awk '{ print $1 }' | grep -v '\.' | wc -l`"
+	echo Total number of builds: $nbuilds
 	nbatches="`grep 'Start batch' $T/script | grep -v ">>" | wc -l`"
 	echo Total number of batches: $nbatches
 	exit 0
-- 
2.9.5

