callgraph/benchmark.rb

90 lines
1.9 KiB
Ruby
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2016-05-09 15:33:33 +00:00
#!/usr/bin/env ruby
require 'socket'
require 'timeout'
def start(*exe)
puts "Starting #{exe}"
pid = spawn(*exe, out: "/dev/null")
Process.detach(pid)
return pid
end
def is_port_open?(ip, port)
begin
Timeout::timeout(1) do
begin
s = TCPSocket.new(ip, port)
s.close
return true
rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH
return false
end
end
rescue Timeout::Error
end
return false
end
def killall(pids)
pids.each do |pid|
puts "Killing #{pid}"
begin
Process.kill "TERM", pid
Process.wait pid
rescue => ex
puts "ERROR: Couldn't kill #{pid}. #{ex.class}=#{ex.message}"
end
end
end
def run
ab = ["ab", "-n", "10000", "http://0.0.0.0:9089/main.go"]
puts("$ " + ab.join(" "))
out = ""
IO.popen(ab) do |io|
out = io.read
puts(out)
out.split(/\n/).map do |l|
next unless l =~ /^Requests per second:\s+(\d+.\d+)/
return $1
end
end
abort("failed to parse ab output: #{out}")
end
def main()
pids = []
pids << start("docker", "run", "-p", "9089:80", "-v", "#{File.realpath(".")}/:/usr/share/nginx/html:ro", "--rm", "nginx:alpine")
open = false
10.times do
sleep(1)
open ||= is_port_open?("0.0.0.0", 9089)
rc = Process.waitpid(pids[0], Process::WNOHANG)
unless rc.nil?
abort("failed to start nginx container")
end
break if open
end
unless open
abort("failed to start nginx container")
end
run() # warmup
median1 = run()
pids << start("./callgraph", "-skip-test", "-rancher-host", "rancher.local:8080", "http://sharelatex.local/login", "127.0.0.1")
sleep(2)
median2 = run()
killall([pids.pop]) rescue nil
puts (pids)
pids << start("sudo", "tcpdump", "-i", "any", "-n")
sleep(2)
median3 = run()
puts "####median request time/s without, with sysdig and with tcpdump: #{median1} #{median2} #{median3}"
ensure
killall(pids)
end
main