old_contents: from flask import render_template, g, redirect, request
  from db import connect_db, get_all_sum
  
  from statistics import app
  
  @app.before_request
  def before_request():
      g.db = connect_db()
      g.fields = ["CPU", "TOTAL", "SQL", "SOLR", "REDIS", "MEMCACHED"]
  
  @app.route("/")
  def main_page():
      sort_by = request.args.get('sort_by', None)
      data = get_all_sum(g.db)
      if sort_by:
          data = sorted(data, key=lambda row: row[sort_by])
      return render_template("main_page.html", data=data)
  
  @app.route("/add/")
  def add_page():
      key = request.args.get('KEY')
      for field in g.fields:
          new_val = int(request.args.get(field, '0'))
          old_val = int(g.db.hget(key, field) or '0')
          new_val += old_val
          g.db.hset(key, field, new_val)
      g.db.hincrby(key, "REQUESTS", "1")
      return redirect("/")
  
new_contents: from flask import render_template, g, redirect, request
  from db import connect_db, get_all_sum
  
  from statistics import app
  
  @app.before_request
  def before_request():
      g.db = connect_db()
      g.fields = ["CPU", "TOTAL", "SQL", "SOLR", "REDIS", "MEMCACHED"]
  
  @app.route("/")
  def main_page():
      sort_by = request.args.get('sort_by', None)
      data = get_all_sum(g.db)
      if sort_by:
          data = sorted(data, key=lambda row: row[sort_by])
      return render_template("main_page.html", data=data)
  
  @app.route("/average/")
  def average():
      data = get_all_sum(g.db)
      for row in data:
          req_count = row['REQUESTS']
          for k in row:
              if k != 'NAME' and k != 'REQUESTS':
                  row[k] = float(row[k])/req_count
      return render_template("main_page.html", data=data)
  
  @app.route("/add/")
  def add_page():
      key = request.args.get('KEY')
      for field in g.fields:
          new_val = int(request.args.get(field, '0'))
          old_val = int(g.db.hget(key, field) or '0')
          new_val += old_val
          g.db.hset(key, field, new_val)
      g.db.hincrby(key, "REQUESTS", "1")
      return redirect("/")
  
subject: Add proto of average page. Without sorting.