Ondrej Vaško Lirt

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.

Television Standards

Digital and analog television standards resolution reference.

Digital TV Standards

Standard	Resolution (dots × lines)	DAR (H:V)	Pixels
PixelVision	120 × 90	4:3	10,800

(from http://www.metabrew.com/article/a-million-user-comet-application-with-mochiweb-part-1)

Save yourself some time and tune the kernel tcp settings before testing with lots of connections, or your test will fail and you’ll see lots of Out of socket memory messages (and if you are masquerading, nf_conntrack: table full, dropping packet.)

Here are the sysctl settings I ended up with - YMMV, but these will probably do:

$ cat /etc/sysctl.conf
# General gigabit tuning:
net.core.rmem_max = 16777216

	<contents of normal file>

	# Add any additional locations to look for master runners
	runner_dirs: [/srv/runners]

	# Register a reactor whenever a cloud provider emits 'created'
	# the * is the name of the VM, we want any, but you could
	# do something like salt/cloud/Webservers-*/created if you only
	# wanted your webservers
	reactor:

	# Use LVM for partitioning
	d-i partman-auto/method string lvm

	# If one of the disks that are going to be automatically partitioned
	# contains an old LVM configuration, the user will normally receive a
	# warning. Preseed this away
	d-i partman-lvm/device_remove_lvm boolean true

	# And the same goes for the confirmation to write the lvm partitions.
	d-i partman-lvm/confirm boolean true

	#!/bin/bash
	#
	# Example of how to parse short/long options with 'getopt'
	#

	OPTS=`getopt -o vhns: --long verbose,dry-run,help,stack-size: -n 'parse-options' -- "$@"`

	if [ $? != 0 ] ; then echo "Failed parsing options." >&2 ; exit 1 ; fi

	echo "$OPTS"