John Fastabend | 6fd980a | 2016-07-02 14:13:13 -0700 | [diff] [blame] | 1 | #!/bin/bash |
| 2 | # |
| 3 | # Benchmark script: |
| 4 | # - developed for benchmarking egress qdisc path, derived (more |
| 5 | # like cut'n'pasted) from ingress benchmark script. |
| 6 | # |
| 7 | # Script for injecting packets into egress qdisc path of the stack |
| 8 | # with pktgen "xmit_mode queue_xmit". |
| 9 | # |
| 10 | basedir=`dirname $0` |
| 11 | source ${basedir}/functions.sh |
| 12 | root_check_run_with_sudo "$@" |
| 13 | |
| 14 | # Parameter parsing via include |
| 15 | source ${basedir}/parameters.sh |
Martin KaFai Lau | 0f06a67 | 2016-07-20 15:48:43 -0700 | [diff] [blame] | 16 | if [ -z "$DEST_IP" ]; then |
| 17 | [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" |
| 18 | fi |
John Fastabend | 6fd980a | 2016-07-02 14:13:13 -0700 | [diff] [blame] | 19 | [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" |
| 20 | |
| 21 | # Burst greater than 1 are invalid for queue_xmit mode |
| 22 | if [[ -n "$BURST" ]]; then |
| 23 | err 1 "Bursting not supported for this mode" |
| 24 | fi |
| 25 | |
| 26 | # Base Config |
| 27 | DELAY="0" # Zero means max speed |
| 28 | COUNT="10000000" # Zero means indefinitely |
| 29 | |
| 30 | # General cleanup everything since last run |
| 31 | pg_ctrl "reset" |
| 32 | |
| 33 | # Threads are specified with parameter -t value in $THREADS |
| 34 | for ((thread = 0; thread < $THREADS; thread++)); do |
| 35 | # The device name is extended with @name, using thread number to |
| 36 | # make then unique, but any name will do. |
| 37 | dev=${DEV}@${thread} |
| 38 | |
| 39 | # Add remove all other devices and add_device $dev to thread |
| 40 | pg_thread $thread "rem_device_all" |
| 41 | pg_thread $thread "add_device" $dev |
| 42 | |
| 43 | # Base config of dev |
| 44 | pg_set $dev "flag QUEUE_MAP_CPU" |
| 45 | pg_set $dev "count $COUNT" |
| 46 | pg_set $dev "pkt_size $PKT_SIZE" |
| 47 | pg_set $dev "delay $DELAY" |
| 48 | pg_set $dev "flag NO_TIMESTAMP" |
| 49 | |
| 50 | # Destination |
| 51 | pg_set $dev "dst_mac $DST_MAC" |
Martin KaFai Lau | 0f06a67 | 2016-07-20 15:48:43 -0700 | [diff] [blame] | 52 | pg_set $dev "dst$IP6 $DEST_IP" |
John Fastabend | 6fd980a | 2016-07-02 14:13:13 -0700 | [diff] [blame] | 53 | |
| 54 | # Inject packet into TX qdisc egress path of stack |
| 55 | pg_set $dev "xmit_mode queue_xmit" |
| 56 | done |
| 57 | |
| 58 | # start_run |
| 59 | echo "Running... ctrl^C to stop" >&2 |
| 60 | pg_ctrl "start" |
| 61 | echo "Done" >&2 |
| 62 | |
| 63 | # Print results |
| 64 | for ((thread = 0; thread < $THREADS; thread++)); do |
| 65 | dev=${DEV}@${thread} |
| 66 | echo "Device: $dev" |
| 67 | cat /proc/net/pktgen/$dev | grep -A2 "Result:" |
| 68 | done |