diff options
Diffstat (limited to 'nfvbenchvm/dib/elements/nfvbenchvm/static/etc/rc.d/rc.local')
| -rw-r--r-- | nfvbenchvm/dib/elements/nfvbenchvm/static/etc/rc.d/rc.local | 45 |
1 files changed, 40 insertions, 5 deletions
diff --git a/nfvbenchvm/dib/elements/nfvbenchvm/static/etc/rc.d/rc.local b/nfvbenchvm/dib/elements/nfvbenchvm/static/etc/rc.d/rc.local index 94fbd74..59cb4a1 100644 --- a/nfvbenchvm/dib/elements/nfvbenchvm/static/etc/rc.d/rc.local +++ b/nfvbenchvm/dib/elements/nfvbenchvm/static/etc/rc.d/rc.local @@ -19,10 +19,37 @@ echo "Generating configurations for forwarder..." eval $(cat $NFVBENCH_CONF) touch /nfvbench_configured.flag +# WE assume there are at least 2 cores available for the VM +CPU_CORES=$(grep -c ^processor /proc/cpuinfo) -CPU_CORES=`grep -c ^processor /proc/cpuinfo` -CPU_MASKS=0x`echo "obase=16; 2 ^ $CPU_CORES - 1" | bc` -WORKER_CORES=`expr $CPU_CORES - 1` +# We need at least 1 admin core. +if [ $CPU_CORES -le 2 ]; then + ADMIN_CORES=1 +else + # If the number of cores is even we + # reserve 2 cores for admin (second being idle) so the number of + # workers is either 1 (if CPU_CORES is 2) or always even + if (( $CPU_CORES % 2 )); then + ADMIN_CORES=1 + else + ADMIN_CORES=2 + fi +fi +# 2 vcpus: AW (core 0: Admin, core 1: Worker) +# 3 vcpus: AWW (core 0: Admin, core 1,2: Worker) +# 4 vcpus: AWWU (core 0: Admin, core 1,2: Worker, core 3: Unused) +# 5 vcpus: AWWWW +# 6 vcpus: AWWWWU +WORKER_CORES=$(expr $CPU_CORES - $ADMIN_CORES) +# worker cores are all cores except the admin core (core 0) and the eventual unused core +# AW -> 1 +# AWW -> 1,2 +# AWWU -> 1,2 +WORKER_CORE_LIST=$(seq -s, $ADMIN_CORES $WORKER_CORES) +# always use all cores +CORE_MASK=0x$(echo "obase=16; 2 ^ $CPU_CORES - 1" | bc) + +logger "NFVBENCHVM: CPU_CORES=$CPU_CORES, ADMIN_CORES=$ADMIN_CORES, WORKER_CORES=$WORKER_CORES ($WORKER_CORE_LIST)" # CPU isolation optimizations echo 1 > /sys/bus/workqueue/devices/writeback/cpumask @@ -33,7 +60,9 @@ for irq in `ls /proc/irq/`; do echo 1 > /proc/irq/$irq/smp_affinity fi done -tuna -c $(seq -s, 1 1 $WORKER_CORES) --isolate + +# Isolate all cores that are reserved for workers +tuna -c $WORKER_CORE_LIST --isolate NET_PATH=/sys/class/net @@ -52,6 +81,8 @@ get_pci_address() { pci_addr=$(readlink $NET_PATH/$f | cut -d "/" -f5) # some virtual interfaces match on MAC and do not have a PCI address if [ "$pci_addr" -a "$pci_addr" != "N/A" ]; then + # Found matching interface + logger "NFVBENCHVM: found interface $f ($pci_addr) matching $mac" break else pci_addr="" @@ -93,9 +124,10 @@ if [ $PCI_ADDRESS_1 ] && [ $PCI_ADDRESS_2 ]; then /dpdk/dpdk-devbind.py -b igb_uio $PCI_ADDRESS_1 /dpdk/dpdk-devbind.py -b igb_uio $PCI_ADDRESS_2 screen -dmSL testpmd /dpdk/testpmd \ - -c $CPU_MASKS \ + -c $CORE_MASK \ -n 4 \ -- \ + --nb-ports=2 \ --burst=32 \ --txd=256 \ --rxd=1024 \ @@ -103,6 +135,8 @@ if [ $PCI_ADDRESS_1 ] && [ $PCI_ADDRESS_2 ]; then --eth-peer=1,$TG_MAC2 \ --forward-mode=mac \ --nb-cores=$WORKER_CORES \ + --txq=$VIF_MQ_SIZE \ + --rxq=$VIF_MQ_SIZE \ --max-pkt-len=9000 \ --cmdline-file=/dpdk/testpmd_cmd.txt echo "testpmd running in screen 'testpmd'" @@ -115,6 +149,7 @@ if [ $PCI_ADDRESS_1 ] && [ $PCI_ADDRESS_2 ]; then sed -i "s/{{PCI_ADDRESS_1}}/$PCI_ADDRESS_1/g" /etc/vpp/startup.conf sed -i "s/{{PCI_ADDRESS_2}}/$PCI_ADDRESS_2/g" /etc/vpp/startup.conf sed -i "s/{{WORKER_CORES}}/$WORKER_CORES/g" /etc/vpp/startup.conf + sed -i "s/{{VIF_MQ_SIZE}}/${VIF_MQ_SIZE}/g" /etc/vpp/startup.conf service vpp start sleep 10 |