90 lines
1.9 KiB
Ruby
90 lines
1.9 KiB
Ruby
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#!/usr/bin/env ruby
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require 'socket'
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require 'timeout'
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def start(*exe)
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puts "Starting #{exe}"
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pid = spawn(*exe, out: "/dev/null")
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Process.detach(pid)
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return pid
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end
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def is_port_open?(ip, port)
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begin
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Timeout::timeout(1) do
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begin
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s = TCPSocket.new(ip, port)
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s.close
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return true
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rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH
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return false
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end
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end
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rescue Timeout::Error
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end
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return false
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end
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def killall(pids)
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pids.each do |pid|
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puts "Killing #{pid}"
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begin
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Process.kill "TERM", pid
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Process.wait pid
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rescue => ex
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puts "ERROR: Couldn't kill #{pid}. #{ex.class}=#{ex.message}"
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end
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end
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end
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def run
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ab = ["ab", "-n", "10000", "http://0.0.0.0:9089/main.go"]
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puts("$ " + ab.join(" "))
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out = ""
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IO.popen(ab) do |io|
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out = io.read
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puts(out)
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out.split(/\n/).map do |l|
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next unless l =~ /^Requests per second:\s+(\d+.\d+)/
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return $1
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end
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end
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abort("failed to parse ab output: #{out}")
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end
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def main()
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pids = []
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pids << start("docker", "run", "-p", "9089:80", "-v", "#{File.realpath(".")}/:/usr/share/nginx/html:ro", "--rm", "nginx:alpine")
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open = false
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10.times do
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sleep(1)
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open ||= is_port_open?("0.0.0.0", 9089)
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rc = Process.waitpid(pids[0], Process::WNOHANG)
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unless rc.nil?
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abort("failed to start nginx container")
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end
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break if open
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end
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unless open
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abort("failed to start nginx container")
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end
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run() # warmup
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median1 = run()
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pids << start("./callgraph", "-skip-test", "-rancher-host", "rancher.local:8080", "http://sharelatex.local/login", "127.0.0.1")
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sleep(2)
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median2 = run()
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killall([pids.pop]) rescue nil
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puts (pids)
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pids << start("sudo", "tcpdump", "-i", "any", "-n")
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sleep(2)
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median3 = run()
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puts "####median request time/s without, with sysdig and with tcpdump: #{median1} #{median2} #{median3}"
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ensure
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killall(pids)
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end
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main
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