Cashing For Cash, part 1 DPC 2009

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Helgi Þormar Þorbjörnsson

Tecnologia Negócios

Caching For Cash Dutch PHP Conference – Amsterdam, June 2009

Head of R&D at echolibre , pear extraordinaire, published author, party person and an Icelande r

Works at Jelsoft , php core developer, published author, party person and a Scottish person

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You’ve used all the server-side caching tricks in the book: memcache, APC, database cache and so on to squeeze every millisecond out, and now your site is as fast as it will ever get. Well guess again! These technologies are caching and creating the HTML which, if they done correctly, is only 10 – 20% of the user response time, so there is a lot of room for improvement. Learn how to optimize your JavaScript, CSS, Images, Cookies and a whole slew of other things that make frontend caching a magical place.

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Many services / applications now a day are ill equipped with handling a sudden rush of popularity, as is often the case on the internet now a days, to a point where the services either become unavailable or unbearably slow. By taking a chapter from the ant colonies in the wild, where their strength lies in their numbers and the fact that everyone works together towards the same goal, we can apply the same principle to our service by using systems such as - gearman - memcache - daemons - message queues - load balancers and many more, you can achieve greater performance, more redundancy, higher availability and have the ability to scale your services up and down as required easily. During this talk attendees will be lead through the world of distributed systems and scalability, and shown the how, where and what, of how to take the average application and splitting it into smaller more manageable pieces

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Many services / applications now a day are ill equipped with handling a sudden rush of popularity, as is often the case on the internet now a days, to a point where the services either become unavailable or unbearably slow. By taking a chapter from the ant colonies in the wild, where their strength lies in their numbers and the fact that everyone works together towards the same goal, we can apply the same principle to our service by using systems such as - gearman - memcache - daemons - message queues - load balancers and many more, you can achieve greater performance, more redundancy, higher availability and have the ability to scale your services up and down as required easily. During this talk attendees will be lead through the world of distributed systems and scalability, and shown the how, where and what, of how to take the average application and splitting it into smaller more manageable pieces

Think like an ant, distribute the workload - PhpDay, Italy, 2011

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You’ve used all the server-side caching tricks in the book: memcache, APC, database cache and so on to squeeze every millisecond out, and now your site is as fast as it will ever get. Well guess again! These technologies are caching and creating the HTML which, if they done correctly, is only 10 – 20% of the user response time, so there is a lot of room for improvement. Learn how to optimize your JavaScript, CSS, Images, Cookies and a whole slew of other things that make frontend caching a magical place.

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You have done all the caching tricks in the book on the server side: memcache, apc, database cache and so on and squeezed every millisecond out of it, now your site is as fast as it will ever get. Well guess again ! Too often people forget that what you are effectively caching and creating with those technologies is the HTML part of the user response time, now if they are done correctly then HTML is 10 - 20% of your users response time, so there is room for a whole lot of improvements on those other 80 - 90%. You will be taken through a couple of important steps to achieve this, such as how to optimize your JavaScript, CSS, Images, Cookies and a whole sleeve of other things that make frontend caching the magical place that it is. After having attended this talk you will not only have learned to make your sites faster for your long term users but also people coming for the first time as well as people on slower connections.

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Have you come up with the next big thing? Coding it is something every new startup faces but what happens when it really does becomes the next big thing and servers start to crawl under the load? In this workshop we'll cover a number of ways to identify bottlenecks and how to solve them once found. We'll also cover how to perform some extra scaling without expensive hardware. * Benchmarking (f.ex. ab) * Profiling with Xdebug * Memcache * APC * and various other caching methodologies Hopefully this will prevent you from becoming the next failwhale.

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You have done all the caching tricks in the book on the server side: memcache, apc, database cache and so on and squeezed every millisecond out of it, now your site is as fast as it will ever get. Well guess again ! Too often people forget that what you are effectively caching and creating with those technologies is the HTML part of the user response time, now if they are done correctly then HTML is 10 - 20% of your users response time, so there is room for a whole lot of improvements on those other 80 - 90%. You will be taken through a couple of important steps to achieve this, such as how to optimize your JavaScript, CSS, Images, Cookies and a whole sleeve of other things that make frontend caching the magical place that it is. After having attended this talk you will not only have learned to make your sites faster for your long term users but also people coming for the first time as well as people on slower connections.

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1. Caching For Cash Dutch PHP Conference – Amsterdam, June 2009

2. Head of R&D at echolibre , pear extraordinaire, published author, party person and an Icelande r

3. Works at Jelsoft , php core developer, published author, party person and a Scottish person

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Notas do Editor

Websites have more pages than you think. Performance effects are aggregate.
Database Buffer Cache Network etc
Overloaded databases Badly configured machines NFS / File system contention Solutions: Get a real system administrator Pick the right database for the job Clustered / Proxy databases
Missing indexes. Poor schema architecture. Bad database tuning. Selecting too many columns / rows
Proxy callout to external services Remote PHP includes REST / AJAX SOAP / RPC calls Solutions: Cache the network calls Design your AJAX so you can easily cache it
Image manipulation Encryption system/exec/etc. function calls Solutions Off load work to other machines Gearman and similar are your friends
Performing extensive looping text replacements Performing extensive looping in general Badly written Regular Expressions Extensive recursive functionality