Crank up dbench, now that everything seems to be quite stable under load.

We now do 1, 10, 50, and 100 client runs each night.
Make sure the path back to the scripts directory is available in the
environment for scripts to get at if need be.

bench

@@ -50,7 +50,7 @@
 owner=nathans@sgi.com
 
 tmp=/tmp/$$
-here=`pwd`
+here=`pwd`; export here
 status=1	# failure is the default!
 
 # get standard environment, filters and checks
@@ -134,7 +134,7 @@ _run_benchmark()
 _merge_results()
 {
     echo Results for $bench benchmark >>$OUT
-    echo results.$bench.* | sort -u | xargs cat >>$OUT
+    echo results.$bench.* | sort -nu | xargs cat >>$OUT
     echo >>$OUT
 }