[netperf-dev] netperf2 commit notice r573 - trunk/doc/examples

[raj at netperf.org]

Author: raj
Date: 2012-05-01 15:06:38 -0700 (Tue, 01 May 2012)
New Revision: 573

Added:
   trunk/doc/examples/find_max_burst.sh
   trunk/doc/examples/remote_hosts
Log:
a few additional helpful things

Added: trunk/doc/examples/find_max_burst.sh
===================================================================
--- trunk/doc/examples/find_max_burst.sh	                        (rev 0)
+++ trunk/doc/examples/find_max_burst.sh	2012-05-01 22:06:38 UTC (rev 573)
@@ -0,0 +1,41 @@
+# a crude script to try to find the burst size which results in
+# something approximating peak transactions per second.  once we so
+# pass the peak, we may want to refine further but for now, this
+# should suffice
+
+LAST_TPS=0
+BURST=1
+LAST_BURST=0
+
+TMP_TPS=`netperf -t TCP_RR -P 0 -H $1 -- -b $BURST -D -o throughput`
+
+if [ $? -ne 0 ]
+then
+    echo -1
+    exit -1
+fi
+
+CUR_TPS=`echo $TMP_TPS | awk '{print int($1)}'`
+
+while [ $CUR_TPS -gt $LAST_TPS ]
+do
+    LAST_BURST=$BURST
+    BURST=`expr $BURST \* 2`
+    LAST_TPS=$CUR_TPS
+
+    TMP_TPS=`netperf -t TCP_RR -P 0 -H $1 -- -b $BURST -D -o throughput`
+
+    if [ $? -ne 0 ]
+    then
+	echo -1
+	exit -1
+    fi
+
+    CUR_TPS=`echo $TMP_TPS | awk '{print int($1)}'`
+done
+
+# if we were going to further refine the estimate we would probably do
+# a binary search at this point but for now, just emit the value of
+# LAST_BURST and be done with it.
+
+echo $LAST_BURST


Property changes on: trunk/doc/examples/find_max_burst.sh
___________________________________________________________________
Added: svn:executable
   + *

Added: trunk/doc/examples/remote_hosts
===================================================================
--- trunk/doc/examples/remote_hosts	                        (rev 0)
+++ trunk/doc/examples/remote_hosts	2012-05-01 22:06:38 UTC (rev 573)
@@ -0,0 +1,3 @@
+REMOTE_HOSTS[0]=127.0.0.1
+REMOTE_HOSTS[1]=127.0.0.1
+NUM_REMOTE_HOSTS=2
\ No newline at end of file