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Sylvain RayéMeet Magento Germany 2014

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VARNISH?!!!

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Servers Architecture

Source: http://edoceo.com/howto/nginx-varnish-ssl

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Without Varnish200 requests / 5 concurrent clients Result: ~2 req / sec

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With Varnish200 requests / 5 concurrent clients Result: ~1400 req / sec

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• The GoodPeak of visitors (Christmas, Sales period, TV show, etc),low or heavy traffic, grace mode, load balancer, health check#

• The Bad SSL, configuration, wrong web server logs, debugging (web app, varnish), FPC deactivated (EE)#

• The UglyUse for static content, hide bad coding practices

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Hey idiot !!#Did you mentioned Ivan’s Magento Performance tweaks from eComDev?!#http://bit.ly/1abipgf (Presentation)!http://bit.ly/1d2nDPz (Module)!#Or $product->addAttributeUpdate()!http://bit.ly/1eIK5fb (in german)!#Use OpCode, Redis / Memcached, etc

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HTTP Protocol#

Varnish Configuration#

Web Application

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HTTP Protocol

Source: Varnish Book

Request Response

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HTTP Cache headers• Expires / Cache-Control

• ETAG / Last-Modified

• If-Modified-Since / If-None-Match

• Vary

• Age

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Configuration• /etc/default/varnish

#

#

• /etc/varnish/default.vcl

• /usr/bin/varnishadm

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VCL & Routines

Source: http://www.fabrizio-branca.de

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Christmas time!#Hum, sorry… shopping time!##Your shop is fast now?

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Edge Side IncludesHTML generated from server side

Your VCL should have

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Magento Extensions

• Nexcess Turpentine

• Phoenix Media PageCache

• Aoe_Static (forked by S. Hoyer)

Dammit!!!

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Varnish or

not Varnish? #

That’s the question

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Alternatives• Full Page Cache of Bubble Code:

http://bit.ly/1kxRUvc

• Lesti FPC: http://bit.ly/1axNMFb

• Litespeed

• HipHop VM (work in progress)

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THANK YOU

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I can do shopping much faster now

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Links• Varnish Book

https://www.varnish-software.com/book

• Nexcess Turpentine http://bit.ly/1cFAIxe

• Phoenix Media PageCachehttp://bit.ly/19fYzoQ

• Aoe_Static (forked)http://bit.ly/19fYNMO

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Copyright - Jeff Dunham

Achmed the dead terrorist http://www.youtube.com/watch?v=R_jU3FdnNoc