From 8f92dd15e13552c3968838e9525118fbcef5fb5f Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sun, 3 Sep 2017 13:50:53 +0200
Subject: profiling: add write-trace.bash

Save an execution trace of writing 100MB of data
to a new gocryptfs mount on /tmp
---
 profiling/write-trace.bash | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100755 profiling/write-trace.bash

(limited to 'profiling')

diff --git a/profiling/write-trace.bash b/profiling/write-trace.bash
new file mode 100755
index 0000000..3475140
--- /dev/null
+++ b/profiling/write-trace.bash
@@ -0,0 +1,23 @@
+#!/bin/bash -eu
+#
+# Write an execution trace of writing 100MB of data
+# to a new gocryptfs mount on /tmp
+
+cd "$(dirname "$0")"
+
+T=$(mktemp -d)
+mkdir $T/a $T/b
+
+../gocryptfs -init -quiet -scryptn 10 -extpass "echo test" $T/a
+../gocryptfs -quiet -extpass "echo test" -trace $T/trace \
+	$T/a $T/b
+
+# Cleanup trap
+trap "cd /; fusermount -u -z $T/b; rm -Rf $T/a" EXIT
+
+# Write only 1x100MB, otherwise the trace gets too big.
+dd if=/dev/zero of=$T/b/zero bs=1M count=100
+
+echo
+echo "Hint: go tool trace $T/trace"
+
-- 
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