Small updates to dbench test runs, and integrate some bonnie++ runs too.

Add a header showing mount and mkfs options.

run.bonnie_io

@@ -0,0 +1,38 @@
+#!/bin/sh
+# 
+# Does a bonnie throughput run (80M file and 1K chunksize if the
+# BONNIE_FILESIZE and/or BONNIE_CHUNKSIZE variables are not set),
+# then massages the output into CSV format with the human-readable
+# output preceding it as a "comment" (ie. #-prefixed).
+# 
+BONNIE_FILESIZE=${BONNIE_FILESIZE:=80M}
+BONNIE_CHUNKSIZE=${BONNIE_CHUNKSIZE:=1K}
+
+. $here/common.bonnie
+
+# 
+# Sample bonnie throughput output (stderr):
+#Version 1.02c       ------Sequential Output------ --Sequential Input- --Random-
+#                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
+#Machine   Size:chnk K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
+#          150M:64k           52024  99 88969  99           245492 100  3746 264
+# 
+filter_stderr()
+{
+	sed -e 's/^..................../# /g' | awk '{print} END {print "#"}'
+}
+
+# 
+# Sample bonnie throughput output (stdout):
+# ",150M:64k,,,52024,99,88969,99,,,245492,100,3746.0,264,,,,,,,,,,,,,"
+# 
+filter_stdout()
+{
+	tr -s ',' | sed -e 's/^,//' -e 's/,$//'
+}
+
+if [ $# -gt 0 ]; then
+	echo "size:chnk,writeK/s,wcpu,rewriteK/s,rwcpu,readK/s,rcpu,seek/s,scpu"
+	exit 0
+fi
+run_bonnie -n 0 -s $BONNIE_FILESIZE:$BONNIE_CHUNKSIZE