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author | Jesper Dangaard Brouer <brouer@redhat.com> | 2016-07-13 22:06:04 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2016-07-14 15:19:51 -0700 |
commit | 15f2cbbde4cff41904f5e87504ff45b36796b8d2 (patch) | |
tree | 6b9f08746e2a07f4f2aaba2bae3dd9cfde44b342 /samples/pktgen | |
parent | 53d94892e27409bb2b48140207c0273b2ba65f61 (diff) | |
download | linux-15f2cbbde4cff41904f5e87504ff45b36796b8d2.tar.gz linux-15f2cbbde4cff41904f5e87504ff45b36796b8d2.tar.bz2 linux-15f2cbbde4cff41904f5e87504ff45b36796b8d2.zip |
pktgen: add sample script pktgen_sample04_many_flows.sh
Adding a pktgen sample script that demonstrates how to use pktgen
for simulating flows. Script will generate a certain number of
concurrent flows ($FLOWS) and each flow will contain $FLOWLEN
packets, which will be send back-to-back, before switching to a
new flow, due to flag FLOW_SEQ.
This script obsoletes the old sample script 'pktgen.conf-1-1-flows',
which is removed.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/pktgen')
-rwxr-xr-x | samples/pktgen/pktgen.conf-1-1-flows | 67 | ||||
-rwxr-xr-x | samples/pktgen/pktgen_sample04_many_flows.sh | 93 |
2 files changed, 93 insertions, 67 deletions
diff --git a/samples/pktgen/pktgen.conf-1-1-flows b/samples/pktgen/pktgen.conf-1-1-flows deleted file mode 100755 index 081749c9707d..000000000000 --- a/samples/pktgen/pktgen.conf-1-1-flows +++ /dev/null @@ -1,67 +0,0 @@ -#!/bin/bash - -#modprobe pktgen - - -function pgset() { - local result - - echo $1 > $PGDEV - - result=`cat $PGDEV | fgrep "Result: OK:"` - if [ "$result" = "" ]; then - cat $PGDEV | fgrep Result: - fi -} - -# Config Start Here ----------------------------------------------------------- - - -# thread config -# Each CPU has its own thread. One CPU example. We add eth1. - -PGDEV=/proc/net/pktgen/kpktgend_0 - echo "Removing all devices" - pgset "rem_device_all" - echo "Adding eth1" - pgset "add_device eth1" - - -# device config -# delay 0 -# We need to do alloc for every skb since we cannot clone here. - -CLONE_SKB="clone_skb 0" -# NIC adds 4 bytes CRC -PKT_SIZE="pkt_size 60" - -# COUNT 0 means forever -#COUNT="count 0" -COUNT="count 10000000" -DELAY="delay 0" - -PGDEV=/proc/net/pktgen/eth1 - echo "Configuring $PGDEV" - pgset "$COUNT" - pgset "$CLONE_SKB" - pgset "$PKT_SIZE" - pgset "$DELAY" - # Random address with in the min-max range - pgset "flag IPDST_RND" - pgset "dst_min 10.0.0.0" - pgset "dst_max 10.255.255.255" - - # 8k Concurrent flows at 4 pkts - pgset "flows 8192" - pgset "flowlen 4" - - pgset "dst_mac 00:04:23:08:91:dc" - -# Time to run -PGDEV=/proc/net/pktgen/pgctrl - - echo "Running... ctrl^C to stop" - trap true INT - pgset "start" - echo "Done" - cat /proc/net/pktgen/eth1 diff --git a/samples/pktgen/pktgen_sample04_many_flows.sh b/samples/pktgen/pktgen_sample04_many_flows.sh new file mode 100755 index 000000000000..f60412e445bb --- /dev/null +++ b/samples/pktgen/pktgen_sample04_many_flows.sh @@ -0,0 +1,93 @@ +#!/bin/bash +# +# Script example for many flows testing +# +# Number of simultaneous flows limited by variable $FLOWS +# and number of packets per flow controlled by variable $FLOWLEN +# +basedir=`dirname $0` +source ${basedir}/functions.sh +root_check_run_with_sudo "$@" + +# Parameter parsing via include +source ${basedir}/parameters.sh +# Set some default params, if they didn't get set +[ -z "$DEST_IP" ] && DEST_IP="198.18.0.42" +[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" +[ -z "$CLONE_SKB" ] && CLONE_SKB="0" + +# NOTICE: Script specific settings +# ======= +# Limiting the number of concurrent flows ($FLOWS) +# and also set how many packets each flow contains ($FLOWLEN) +# +[ -z "$FLOWS" ] && FLOWS="8000" +[ -z "$FLOWLEN" ] && FLOWLEN="10" + +# Base Config +DELAY="0" # Zero means max speed +COUNT="0" # Zero means indefinitely + +if [[ -n "$BURST" ]]; then + err 1 "Bursting not supported for this mode" +fi + +# General cleanup everything since last run +pg_ctrl "reset" + +# Threads are specified with parameter -t value in $THREADS +for ((thread = 0; thread < $THREADS; thread++)); do + dev=${DEV}@${thread} + + # Add remove all other devices and add_device $dev to thread + pg_thread $thread "rem_device_all" + pg_thread $thread "add_device" $dev + + # Base config + pg_set $dev "flag QUEUE_MAP_CPU" + pg_set $dev "count $COUNT" + pg_set $dev "clone_skb $CLONE_SKB" + pg_set $dev "pkt_size $PKT_SIZE" + pg_set $dev "delay $DELAY" + pg_set $dev "flag NO_TIMESTAMP" + + # Single destination + pg_set $dev "dst_mac $DST_MAC" + pg_set $dev "dst $DEST_IP" + + # Randomize source IP-addresses + pg_set $dev "flag IPSRC_RND" + pg_set $dev "src_min 198.18.0.0" + pg_set $dev "src_max 198.19.255.255" + + # Limit number of flows (max 65535) + pg_set $dev "flows $FLOWS" + # + # How many packets a flow will send, before flow "entry" is + # re-generated/setup. + pg_set $dev "flowlen $FLOWLEN" + # + # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow + # being send back-to-back, before next flow is selected + # incrementally. This helps lookup caches, and is more realistic. + # + pg_set $dev "flag FLOW_SEQ" + +done + +# Run if user hits control-c +function print_result() { + # Print results + for ((thread = 0; thread < $THREADS; thread++)); do + dev=${DEV}@${thread} + echo "Device: $dev" + cat /proc/net/pktgen/$dev | grep -A2 "Result:" + done +} +# trap keyboard interrupt (Ctrl-C) +trap true SIGINT + +echo "Running... ctrl^C to stop" >&2 +pg_ctrl "start" + +print_result |