scripts: Add a trivial script to show which programs are using the GPU

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 13 insertions, 0 deletions

diff --git a/scripts/who.sh b/scripts/who.sh
new file mode 100755
index 00000000..9aab7041
--- /dev/null
+++ b/scripts/who.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+#
+# usage: sudo who.sh
+#
+# Requires root permissions to both query who has the device open,
+# and to read the mappings of likely root-owned processes
+#
+
+for i in `lsof -t /dev/dri/card0`; do
+	who=`readlink /proc/$i/exe`
+	count=`grep /dev/dri/card0 /proc/$i/maps | wc -l | cut -f1 -d\ `
+	echo "$who: $count"
+done