147. Short-lived Application Tests

147.1. Description

This feature is to reduce application start-up time, and do more cleanup when exit so that it could rerun many times.

147.2. Prerequisites

To test this feature, need to use linux time and start testpmd by: create and mount hugepage, must create more hugepages so that could measure time more obviously:

# echo 8192 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
# mount -t hugetlbfs hugetlbfs /mnt/huge

Bind nic to DPDK:

./usertools/dpdk-devbind.py -b vfio-pci device_bus_id

Start testpmd using time:

# echo quit | time ./app/dpdk-testpmd -c 0x3 -n 4 -- -i

147.2.1. Test Case 1: Basic fwd testing

  1. Start testpmd:

    ./app/dpdk-testpmd -c 0x3 -n 4 -- -i

  2. Set fwd mac.

  3. Send packet from pkg.

  4. Check all packets could be fwd back.

147.2.2. Test Case 2: Get start up time

  1. Start testpmd:

    echo quit | time ./app/dpdk-testpmd -c 0x3 -n 4 --huge-dir /mnt/huge -- -i

  2. Get the time stats of the startup.

  3. Repeat step 1~2 for at least 5 times to get the average.

147.2.3. Test Case 3: Clean up with Signal – testpmd

  1. Create 4G hugepages, so that could save times when repeat:

    echo 2048 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
mount -t hugetlbfs hugetlbfs /mnt/huge1

  2. Start testpmd:

    ./app/dpdk-testpmd -c 0x3 -n 4 --huge-dir /mnt/huge1 -- -i --portmask=0x3

  3. Set fwd mac.

  4. Send packets from pkg.

  5. Check all packets could be fwd back.

  6. Kill the testpmd in shell using below commands alternately:

    SIGINT:  pkill -2  dpdk-testpmd
SIGTERM: pkill -15 dpdk-testpmd

  7. Repeat step 1-6 for 20 times, and packet must be fwd back with no error for each time.

147.2.4. Test Case 4: Clean up with Signal – l2fwd

  1. Build l2fwd example:

    meson configure -Dexamples=l2fwd x86_64-native-linuxapp-gcc
ninja -C x86_64-native-linuxapp-gcc

  2. Create 4G hugepages, so that could save times when repeat:

    echo 2048 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
mount -t hugetlbfs hugetlbfs /mnt/huge1

  3. Start testpmd:

    ./examples/dpdk-l2fwd -c 0x3 -n 4 --huge-dir /mnt/huge1 -- -p 0x03

  4. Set fwd mac.

  5. Send packets from pkg.

  6. Check all packets could be fwd back.

  7. Kill the testpmd in shell using below commands alternately:

    SIGINT:  pkill -2  dpdk-l2fwd
SIGTERM: pkill -15 dpdk-l2fwd

  8. Repeat step 1-6 for 20 times, and packet must be fwd back with no error for each time.

147.2.5. Test Case 5: Clean up with Signal – l3fwd

  1. Build l3fwd example:

    meson configure -Dexamples=l3fwd x86_64-native-linuxapp-gcc
ninja -C x86_64-native-linuxapp-gcc

  2. Create 4G hugepages, so that could save times when repeat:

    echo 2048 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
mount -t hugetlbfs hugetlbfs /mnt/huge1

  3. Start testpmd:

    ./examples/dpdk-l3fwd -c 0x3 -n 4 --huge-dir /mnt/huge1 -- -p 0x03 --config='(0,0,1),(1,0,2)' &

  4. Set fwd mac.

  5. Send packets from pkg.

  6. Check all packets could be fwd back.

  7. Kill the testpmd in shell using below commands alternately:

    SIGINT:  pkill -2  dpdk-l3fwd
SIGTERM: pkill -15 dpdk-l3fwd

  8. Repeat step 1-6 for 20 times, and packet must be fwd back with no error for each time.