nohz_tests: Make target optable
Let the user choose its full dynticks CPU target test in a variable.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
diff --git a/run b/run
index b461fc8..1f9a88b 100755
--- a/run
+++ b/run
@@ -1,5 +1,9 @@
#!/bin/bash
+# Full dyntick CPU on which we'll run the user loop,
+# it must be part of nohz_full kernel parameter
+TARGET=1
+
NR_CPUS=$(getconf _NPROCESSORS_ONLN)
# Migrate nocb tasks to CPU 0
@@ -43,10 +47,10 @@
echo nop > $DIR/current_tracer
echo 1 > $DIR/tracing_on
-# Run a 10 secs user loop on CPU 1
-taskset -c 1 ./user_loop &
+# Run a 10 secs user loop on target
+taskset -c $TARGET ./user_loop &
sleep 10
killall user_loop
-# Checkout the trace in trace.1
-cat /sys/kernel/debug/tracing/per_cpu/cpu1/trace > trace.1
+# Checkout the trace in trace.* file
+cat /sys/kernel/debug/tracing/per_cpu/cpu$TARGET/trace > trace.$TARGET
