mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 21:38:32 +08:00
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>
This commit is contained in:
Jesper Dangaard Brouer
David S. Miller
parent
53d94892e2
commit
15f2cbbde4
@ -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
|
||||
93
samples/pktgen/pktgen_sample04_many_flows.sh
Executable file
93
samples/pktgen/pktgen_sample04_many_flows.sh
Executable file
@ -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
|
||||
Loading…
Reference in New Issue
Block a user