set testpmd num-mbufs to limit memory allocation

testpmd-container-app/cnfapp/scripts/testpmd-wrapper

@@ -58,7 +58,7 @@ CORES_STR=$LCORES
 IFS=',' read -ra CORES_ARR <<< "$CORES_STR"
 CORES_LEN=${#CORES_ARR[@]}
 if [[ $CORES_LEN -gt $TESTPMD_CPU_COUNT ]]; then
-    echo "ERROR: Acutal cores (${CORES_LEN}) is greater than configured cores (${TESTPMD_CPU_COUNT})"
+    echo "ERROR: Actual cores (${CORES_LEN}) is greater than configured cores (${TESTPMD_CPU_COUNT})"
     exit 1
 fi
 
@@ -78,10 +78,11 @@ TXQ=${tx_queues:=1}
 RXD=${rx_descriptors:=1024}
 TXD=${tx_descriptors:=1024}
 STATS_PERIOD=${stats_period:=1}
+NUM_MBUFS=${num_mbufs:=187456}
 
 RUN="/usr/local/bin/example-cnf/testpmd-run"
 CMD="/usr/local/bin/example-cnf/testpmd"
-CMD="${CMD} -l $LCORES --in-memory $PCI --socket-mem ${SOCKET_MEM} -n ${MEMORY_CHANNELS} --proc-type auto --file-prefix pg"
+CMD="${CMD} -l $LCORES --in-memory $PCI --total-num-mbufs ${NUM_MBUFS} --socket-mem ${SOCKET_MEM} -n ${MEMORY_CHANNELS} --proc-type auto --file-prefix pg"
 CMD="${CMD} --"
 CMD="${CMD} --disable-rss --nb-cores=${FORWARDING_CORES} --rxq=${RXQ} --txq=${TXQ} --rxd=${RXD} --txd=${TXD}"
 CMD="${CMD} --auto-start ${ETH_PEER} --forward-mode=mac --stats-period ${STATS_PERIOD}"