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require 'http'

started_at = Time.now
threads = 10.times.map do |i|
  sleep 0.1

  Thread.new do
    begin
      started_at = Time.now
      response = HTTP.get("http://localhost:8001/#{i}")

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# Thread 1
total = 0
loop do
  total = total + 1
end

# Thread 2
response = HTTP.post("/users/create")
data = JSON.parse(response.body)
HTTP.post("/update-profile/#data['user_id']}")

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Thread.new do
 started_at = Time.now.to_f
 sleep 1
 report_time("thread.contention", (Time.now.to_f - started_at - 1) * 1000)
end

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started_at = Time.now.to_f
response = HTTP.post("/users/create")
report_time("users.create", (Time.now.to_f - started_at) * 1000)
response

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started_at = Time.now.to_f # 00:00
# Context switch to another thread
# 00:05, Context switch back 5 seconds later
response = HTTP.post("/users/create") # 00:06
report_time("users.create", (Time.now.to_f - started_at) * 1000) # 00:06

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daemon off;

worker_processes 1;

error_log /dev/stdout debug;
pid /tmp/nginx.pid;

events {
    worker_connections 8192;
}