$ docker run --rm -v "$(pwd)/multi-request-json.lua":/multi-request-json.lua -v "$(pwd)/requests.json":/requests.json czerasz/wrk-json wrk -c1 -t1 -d5s -s /multi-request-json.lua https://www.example.com
multiplerequests: Found 2 requests
multiplerequests: Found 2 requests
Running 5s test @ https://www.example.com
1 threads and 1 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 887.09ms 415.48ms 1.36s 60.00%
Req/Sec 0.60 0.55 1.00 60.00%
5 requests in 5.10s, 1.54MB read
Requests/sec: 0.98
Transfer/sec: 309.12KB
Dockerfile
FROM debian:jessie
MAINTAINER Michał Czeraszkiewicz <czerasz.hosting@gmail.com>
# Set the reset cache variable
ENV REFRESHED_AT 2015-06-15
ENV DEBIAN_FRONTEND noninteractive
# Update packages list
RUN apt-get update -y
# Install useful packages
# RUN apt-get install -y strace procps tree vim git curl wget gnuplot
# Install required software
RUN apt-get install -y git make build-essential libssl-dev
# Install wrk - benchmarking software
# Resource: https://github.com/wg/wrk/wiki/Installing-Wrk-on-Linux
WORKDIR /tmp
RUN git clone https://github.com/wg/wrk.git &&\
cd wrk &&\
make &&\
mv wrk /usr/local/bin
# Install Luarocks dependencies
RUN apt-get install -y curl \
make \
unzip \
lua5.1 \
liblua5.1-dev
# Install Luarocks - a lua package manager
RUN curl http://keplerproject.github.io/luarocks/releases/luarocks-2.2.2.tar.gz -O &&\
tar -xzvf luarocks-2.2.2.tar.gz &&\
cd luarocks-2.2.2 &&\
./configure &&\
make build &&\
make install
# Install the cjson package
RUN luarocks install lua-cjson
WORKDIR /
# Cleanup
RUN apt-get clean
RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
# Raise the limits to successfully run benchmarks
RUN ulimit -c -m -s -t unlimited
ENV DEBIAN_FRONTEND=newt
multi-request-json.lua
-- http://czerasz.com/2015/07/19/wrk-http-benchmarking-tool-example/
-- https://github.com/czerasz/docker-wrk-json
-- docker run --rm -v "$(pwd)/multi-request-json.lua":/multi-request-json.lua -v "$(pwd)/requests.json":/requests.json czerasz/wrk-json wrk -c1 -t1 -d5s -s /multi-request-json.lua https://www.example.com
-- TRIED LOCAL SETUP ON MAC BUT MODULE STILL COULDN'T BE FOUND...
-- sudo luarocks install lua-cjson
-- package.path = package.path .. ';/usr/local/lib/luarocks/rocks-5.2/?/?.lua'
-- wrk -c1 -t1 -d5s -s multi-request-json.lua https://www.example.com
-- Module instantiation
local cjson = require "cjson"
local cjson2 = cjson.new()
local cjson_safe = require "cjson.safe"
-- Initialize the pseudo random number generator
-- Resource: http://lua-users.org/wiki/MathLibraryTutorial
math.randomseed(os.time())
math.random(); math.random(); math.random()
-- Shuffle array
-- Returns a randomly shuffled array
function shuffle(paths)
local j, k
local n = #paths
for i = 1, n do
j, k = math.random(n), math.random(n)
paths[j], paths[k] = paths[k], paths[j]
end
return paths
end
-- Load URL paths from the file
function load_request_objects_from_file(file)
local data = {}
local content
-- Check if the file exists
-- Resource: http://stackoverflow.com/a/4991602/325852
local f=io.open(file,"r")
if f~=nil then
content = f:read("*all")
io.close(f)
else
-- Return the empty array
return lines
end
-- Translate Lua value to/from JSON
data = cjson.decode(content)
return shuffle(data)
end
-- Load URL requests from file
requests = load_request_objects_from_file("/requests.json")
-- Check if at least one path was found in the file
if #requests <= 0 then
print("multiplerequests: No requests found.")
os.exit()
end
print("multiplerequests: Found " .. #requests .. " requests")
-- Initialize the requests array iterator
counter = 1
request = function()
-- Get the next requests array element
local request_object = requests[counter]
-- Increment the counter
counter = counter + 1
-- If the counter is longer than the requests array length then reset it
if counter > #requests then
counter = 1
end
-- Return the request object with the current URL path
return wrk.format(request_object.method, request_object.path, request_object.headers, request_object.body)
end