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#!/bin/bash
# Copyright (c) 2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -x
function wrk_utils.installed {
# Check if the WRK utility is installed. Fail if not installed.
# Returns:
# - 0 - If command is installed.
# - 1 - If command is not installed.
set -exuo pipefail
command -v wrk
}
function wrk_utils.traffic_1_url_1_core {
# Send traffic
# - to n URL (NIC)
# - using n instances of wrk, each on separate core.
# The CPU used for wrk
cpu=${1}
# Total number of threads to use by one instance of wrk to send traffic.
threads=${2}
# Total number of HTTP connections to keep open with each thread handling
# N = connections / threads.
connections=${3}
# Duration of the test.
duration=${4}
# HTTP header to add to request.
header=${5}
# Record a timeout if a response is not received within this amount of time.
timeout=${6}
# Path to LuaJIT script.
script=${7}
# Print detailed latency statistics.
latency=${8}
# URL to send the traffic to.
url=${9}
if [ "${timeout}" != "None" ]; then
timeout="--timeout ${timeout}"
else
timeout=""
fi
if [ "${latency}" = "True" ]; then
latency="--latency"
else
latency=""
fi
if [ "${script}" != "None" ]; then
script="--script '${script}'"
else
script=""
fi
if [ "${header}" != "None" ]; then
header="${header}"
else
header="''"
fi
taskset --cpu-list ${cpu} \
wrk --threads ${threads} \
--connections ${connections} \
--duration ${duration} \
--header "${header}" \
${timeout} \
${script} \
${latency} \
${url}
}
function wrk_utils.traffic_n_urls_n_cores {
# Send traffic
# - to n URL (NIC)
# - using n instances of wrk, each on separate core.
# The first CPU used for wrk
first_cpu=${1}
# Total number of threads to use by one instance of wrk to send traffic.
threads=${2}
# Total number of HTTP connections to keep open with each thread handling
# N = connections / threads.
connections=${3}
# Duration of the test.
duration=${4}
# HTTP header to add to request.
header=${5}
# Record a timeout if a response is not received within this amount of time.
timeout=${6}
# Path to LuaJIT script.
script=${7}
# Print detailed latency statistics.
latency=${8}
# URL to send the traffic to.
urls=${9}
if [ "${timeout}" != "None" ]; then
timeout="--timeout ${timeout}"
else
timeout=""
fi
if [ "${latency}" = "True" ]; then
latency="--latency"
else
latency=""
fi
if [ "${script}" != "None" ]; then
script="--script '${script}'"
else
script=""
fi
if [ "${header}" != "None" ]; then
header="${header}"
else
header="''"
fi
urls=$(echo ${urls} | tr ";" "\n")
cpu=${first_cpu}
for url in ${urls}; do
taskset --cpu-list ${cpu} \
wrk --threads ${threads} \
--connections ${connections} \
--duration ${duration} \
--header "${header}" \
${timeout} \
${script} \
${latency} \
${url} &
cpu=$((cpu+1))
done
sleep ${duration}
sleep 2
}
function wrk_utils.traffic_n_urls_m_cores {
# Send traffic
# - to n URL (NIC)
# - using m instances of wrk, each on separate core.
# The first CPU used for wrk
first_cpu=${1}
# The last CPU used for wrk
cpus_per_url=${2}
# Total number of threads to use by one instance of wrk to send traffic.
threads=${3}
# Total number of HTTP connections to keep open with each thread handling
# N = connections / threads.
connections=${4}
# Duration of the test.
duration=${5}
# HTTP header to add to request.
header=${6}
# Record a timeout if a response is not received within this amount of time.
timeout=${7}
# Path to LuaJIT script.
script=${8}
# Print detailed latency statistics.
latency=${9}
# URL to send the traffic to.
urls=${10}
if [ "${timeout}" != "None" ]; then
timeout="--timeout ${timeout}"
else
timeout=""
fi
if [ "${latency}" = "True" ]; then
latency="--latency"
else
latency=""
fi
if [ "${script}" != "None" ]; then
script="--script '${script}'"
else
script=""
fi
if [ "${header}" != "None" ]; then
header="${header}"
else
header="''"
fi
urls=$(echo ${urls} | tr ";" "\n")
cpu=${first_cpu}
for i in `seq 1 ${cpus_per_url}`; do
for url in ${urls}; do
taskset --cpu-list ${cpu} \
wrk --threads ${threads} \
--connections ${connections} \
--duration ${duration} \
--header "${header}" \
${timeout} \
${script} \
${latency} \
${url} &
cpu=$((cpu+1))
done
done
sleep ${duration}
sleep 2
}
args=("$@")
case ${1} in
installed)
wrk_utils.installed
;;
traffic_1_url_1_core)
wrk_utils.traffic_1_url_1_core "${args[@]:1}"
;;
traffic_n_urls_n_cores)
wrk_utils.traffic_n_urls_n_cores "${args[@]:1}"
;;
traffic_n_urls_m_cores)
wrk_utils.traffic_n_urls_m_cores "${args[@]:1}"
;;
esac
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