wrk2 vs wrk Lua difference

[olotenko]

threads = {}
resps = {}

setup = function(thread)
   table.insert(threads, thread)
end

response = function(status, headers, body)
   if status == 200 then
      resps['a'] = 1
   end
end

done = function(summary, latency, requests)
   for _, thread in ipairs(threads) do
      for k, v in pairs(thread:get('resps')) do
         print(k, v)
      end
   end
end

Then:

$ wrk -d 3 -s report.lua ...
a       1
a       1

(Observe it printed keys and values)

$ wrk2 -d 3 -s report.lua ...
1       a
1       a

(Observe pairs swapped around k and v for the table returned by thread.get)

This is based on the latest wrk and wrk2.

FROM buildpack-deps:bionic

RUN apt-get update && apt-get install -yqq libluajit-5.1-dev libssl-dev luajit

WORKDIR /wrk
COPY wrk-4.1.0.tar.gz wrk-4.1.0.tar.gz
RUN tar xfz wrk-4.1.0.tar.gz --strip-components=1
ENV LDFLAGS="-O3 -march=native -flto"
ENV CFLAGS="-I /usr/include/luajit-2.1 $LDFLAGS"
RUN make WITH_LUAJIT=/usr WITH_OPENSSL=/usr -j "$(nproc)"
RUN cp wrk /usr/local/bin

WORKDIR /
COPY wrk2.zip wrk2.zip # downloaded source as zip from github
RUN unzip wrk2.zip
WORKDIR /wrk2-master

ENV LDFLAGS="-O3 -march=native -flto"
ENV CFLAGS="-I /usr/include/luajit-2.1 $LDFLAGS"
RUN make WITH_LUAJIT=/usr WITH_OPENSSL=/usr -j "$(nproc)"
RUN cp wrk /usr/local/bin/wrk2

WORKDIR /wrk