First attempt at some performance tracking tools.  Includes a script vg_perf
(use "make perf" to run) that executes test programs and times their
slowdowns under various tools.  It works a lot like the vg_regtest script.
It's a bit rough around the edges -- eg. you can't currently directly
compare two different versions of Valgrind, which would be useful -- but it
is a good start.

There are currently two test programs in perf/.  More will be added as time
goes on.  This stuff will be built on so that performance changes can be
tracked over time.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5323 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/perf/ffbench.vgperf b/perf/ffbench.vgperf
new file mode 100644
index 0000000..98dae55
--- /dev/null
+++ b/perf/ffbench.vgperf
@@ -0,0 +1,2 @@
+prog: ffbench
+tools: none memcheck