ftrace profiling script

old-commit-hash: c8629a4b36

selfdrive/debug/profiling/ftrace.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/bash
+set -e
+
+cd /sys/kernel/tracing
+
+echo 1 > tracing_on
+echo boot > trace_clock
+echo 1000 > buffer_size_kb
+
+# /sys/kernel/tracing/available_events
+echo 1 > events/irq/enable
+echo 1 > events/sched/enable
+echo 1 > events/kgsl/enable
+echo 1 > events/camera/enable
+echo 1 > events/workqueue/enable
+
+echo > trace
+sleep 5
+echo 0 > tracing_on
+
+cp trace /tmp/trace
+chown comma: /tmp/trace
+echo /tmp/trace