Add buffer size option to tracecmd in run-client

Change -b to -m in tracecmd

scripts/run-client

@@ -7,7 +7,7 @@ usage() {
 Usage: $0 QDISC_OPT [CLIENT_OPTS] BOARD
    QDISC_OPTS: (-e delta [-o etf_offset] | -p)
    CLIENT_OPTS: -bgt -i INTERVAL -d TX_BUF_LEN [TRACE_OPTS]
-   TRACE_OPTS: [-T -P TRACER -E EVENTS]
+   TRACE_OPTS: [-T -P TRACER -E EVENTS -B SIZE]
    default tracer opts: irq, sched, net_dev_start_xmit, 
                         net_dev_xmit, net_dev_xmit_timeout
 ENDUSAGE
@@ -26,7 +26,7 @@ etf_offset=500
 tracecmd_events="-e irq -e sched -e net_dev_start_xmit -e net_dev_xmit -e net_dev_xmit_timeout"
 tracecmd_opts=""
 
-while getopts "bd:e:o:ghi:ptTP:E:" opt; do
+while getopts "bd:e:o:ghi:ptB:E:P:T" opt; do
   case "${opt}" in
     b )
         client_options+=" -b"
@@ -62,15 +62,18 @@ while getopts "bd:e:o:ghi:ptTP:E:" opt; do
         use_timestamps=1
         client_options+=" -t"
       ;;
-    T )
-        use_tracer=1
-        client_options+=" -T"
+    B )
+        tracecmd_opts+=" -m ${OPTARG} -b ${OPTARG}"
+      ;;
+    E )
+        tracecmd_events=${OPTARG}
       ;;
     P )
         tracecmd_opts+=" -p ${OPTARG}"
       ;;
-    E )
-        tracecmd_events=${OPTARG}
+    T )
+        use_tracer=1
+        client_options+=" -T"
       ;;
     * )
         usage