lacoski

from django import forms

from inventory.models import Computer

class ComputerForm(forms.ModelForm):

	class Meta:
		model = Computer

class ChromebookForm(forms.ModelForm):

lacoski

# Rootユーザに変更
sudo su -

# virtualenvインストール
pip install -U virtualenv

virtualenv /www/sentry/

source /www/sentry/bin/activate

lacoski

INSTALLED_APPS += (
  'raven.contrib.django.raven_compat',
)

MIDDLEWARE_CLASSES += (
  'raven.contrib.django.raven_compat.middleware.Sentry404CatchMiddleware',
)

RAVEN_CONFIG = {
  'dsn': 'http://x:y@sentry.domain.com/2',  # NOQA

lacoski

import sys
from oslo.config import cfg
from oslo_log import log as oslo_logging

CONF = cfg.CONF
CONF.register_opt(cfg.StrOpt('NODE_NAME'), cfg.OptGroup('HA'))

def main():
    oslo_logging.register_options(CONF)
    CONF(sys.argv[1:], default_config_files=['app.conf'])

lacoski

from __future__ import print_function
import time

def query_10k(cur):
    t = time.time()
    for _ in range(10000):
        cur.execute("SELECT 1,2,3,4,5")
        res = cur.fetchall()
        assert len(res) == 1
        assert res[0] == (1,2,3,4,5)

lacoski

/* Useful celery config.

app = Celery('tasks',
             broker='redis://localhost:6379',
             backend='redis://localhost:6379')

app.conf.update(
    CELERY_TASK_RESULT_EXPIRES=3600,
    CELERY_QUEUES=(
        Queue('default', routing_key='tasks.#'),

lacoski

import io.gatling.core.Predef._
import io.gatling.http.Predef._
import io.gatling.jdbc.Predef._

class Repeat extends Simulation {
  val httpProtocol = http.baseURL("http://localhost").inferHtmlResources()
  val scn = scenario("repeat test").repeat(10) { exec(http("Home").get("/")) }
  setUp(scn.inject(rampUsers(10) over(1)).protocols(httpProtocol))
}

lacoski

import scala.concurrent.duration._

import io.gatling.core.Predef._
import io.gatling.http.Predef._
import io.gatling.jdbc.Predef._

class RecordedSimulation extends Simulation {

	val httpProtocol = http
		.baseUrl("http://10.10.10.86")

lacoski

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

lacoski

# maximum capability of system
user@ubuntu:~$ cat /proc/sys/fs/file-max
708444

# available limit
user@ubuntu:~$ ulimit -n
1024

# To increase the available limit to say 200000
user@ubuntu:~$ sudo vim /etc/sysctl.conf