another possible tiotest improvement

[James Manning]

I find varying the block size *very* interesting :)

James
-- 
Miscellaneous Engineer --- IBM Netfinity Performance Development

--- tiobench.sh.orig    Mon Nov 29 17:53:16 1999
+++ tiobench.sh Mon Nov 29 18:04:14 1999
@@ -8,13 +8,14 @@
     exit 1;
 fi

-if [ $# != 2 ] ; then
-        echo "Usage: tiobench <DataSetSizeInMegs> <TestDirectory>"
-        exit;
+if [ $# -lt 2 -o $# -gt 3 ]; then
+    echo "Usage: $0 <DataSetSizeInMegs> <TestDirectory> [<BlockSizeInBytes>]"
+    exit;
 fi

 size=$1
 dir=$2
+block=${3:-4096}
 datestring=`date +%Y%m%d%H%M%S`
     
 for i in 1 2 4 8 ; do 
@@ -22,7 +23,7 @@
     let tseeks=4000/$i
     ofile=tiob$datestring.$i.txt
     echo -n "Testing with $i threads..."
-    $TIOTEST -t $i -f $tsize -s $tseeks -d $dir >$ofile
+    $TIOTEST -t $i -f $tsize -s $tseeks -b $block -d $dir >$ofile
     echo "Done"
 done