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/configure.in b/configure.in
index 5681fd7..dceba7b 100644
--- a/configure.in
+++ b/configure.in
@@ -496,6 +496,8 @@
    docs/xml/Makefile
    tests/Makefile 
    tests/vg_regtest 
+   perf/Makefile 
+   perf/vg_perf
    include/Makefile 
    auxprogs/Makefile
    coregrind/Makefile