Object Caching for high-performance, scalable web applications
by Johann Schleier-Smith, CTO, Tagged LLC
http://corp.tagged.com/obj-cache-zip

– load balancer
– ZP (30 PHP servers)
– memcached (livejournal) (4 servers) (hash based on keys to decide the storage server)
. Oracle 10g RAC

– Low level cache architecture
. Object serialization
. Basic cache operations
– SET($key, $value, [$lifetime])
– GET($key)
– DELETE($key)
– GETANDWAIT($key)
. Advice: pick something
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Service Data Objects by Graham Charters

Service Data Objects (SDOs) enable PHP applications to work with data from different sources (like a database query, an XML file, and a spreadsheet) using a single interface.

– Data Access Services
. Now we have a data structure we need some way to get data in and out of it..
. SDO applications use DAS to read/write to/from differente sources of data such as databases or XML files
. A DAS converts between a data source format and SDO. For example: SDO Relational Database

(cont…)
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* Creating PHP5 extensions

. PHP5 extensions are the same as in PHP4
. ext_skel generates the basic skeleton

– Build PHP Extensions
src/php5/ext$ ./ext_skel –extname=util

1 $cd ..
2 $ vi ext/util/config.m4
3 $ ./buildconf –force
4 $ ./configure –with-util
5 $ make

(cont…)
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Today I’ll attend two tutorials: XML, Web Services & PHP and PHP Extension Development.

Here are the some notes taken on the XML, Web Services & PHP Tutorial.

Speaker: Christian Wenz- http://www.hauser-wenz.de/s9y/

(cont..)
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After a long trip and a lot of flight changes, finally we arrived at Hyatt Regency Hotel in San Francisco, where the Zend & PHP Expo is going to happen. For the next days I’ll post some notes about the Tutorials and Sessions.

Looks like Intel is working with Skype to improve the VoIP service. Intel is about to release new processors that will improve the sound quality in phone calls and the number of users in conference calls.

Skype has around 50M customers and more than 45% of VoIP calls minutes.