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On batching vs. latency, and jobqueue models

PHP, Data structures, Performance, Scalability, Message Queues    14 November 2012
A little journey exploring job queue models and debunking some programming folklore around the effects of batching on latency.

Musings on some technical papers I read this weekend: Google Dremel, NoSQL comparison, Gossip Protocols

Database, Data structures, Performance, Scalability, NoSQL    3 September 2012
Some random comments on Dremel and a benchmark on Key-Value stores. How to evaluate technical papers and read between the lines.

Historical Twitter access - A journey into optimising Hadoop jobs

Data structures, Performance, Scalability, Hadoop    7 August 2012
A journey into optimising Hadoop jobs: the strategies to scan and filter a PetaByte of archived data, schedule new jobs and deliver data fast.

NoSQL Databases: What, When and Why (PHPUK2011)

Database, Data structures, Performance, Scalability, NoSQL    27 February 2011
Some considerations about NoSQL databases, and slides of my talk given at PHPUK 2011: "NoSQL Databases: What, When and Why".

PHP UK 2010: RDBMS in the social networks age

PHP, Database, PostgreSQL, Firebird SQL, Oracle, SQL Server, Data structures    27 February 2010
Wrapup of the PHP UK Conference 2010. Uploaded slides of my talk "RDBMS in the social networks age" about graphs in the database.

New article: Graphs in the database, SQL meets social networks

Database, PostgreSQL, Firebird SQL, Oracle, SQL Server, Tutorial, Data structures    7 September 2009
Graphs in the database: how to store a graph data structure in a DBMS, and answer the most common queries typical of social networks, like "You might also know" or "You might also like", or "How you are connected to XYZ" (degrees of separation).

Graphs in the database: SQL meets social networks

Database, PostgreSQL, Firebird SQL, Oracle, Data structures    7 September 2009
How to store a graph data structure in a DBMS, and query it to solve many of the problems of social networks.

Trees in the database: It sure ain't no CouchDB!

PHP, Database, PostgreSQL, Firebird SQL, Oracle, SQL Server, Data structures    27 June 2009
Wrap-up of the Dutch PHP Conference, Amsterdam, 11-13 June 2009.

PHP 5.3 SPL data structures: SplStack, SplHeap, SplPriorityQueue, SplDoublyLinkedList

PHP, SPL, Data structures    8 April 2008
A sneak peak at some new SPL data structures (stack, heap, queue, list) introduced in PHP 5.3.

Lorenzo Alberton

Lorenzo Alberton Lorenzo PHP5 ZCE - Zend Certified Engineer has been working with large enterprise UK companies for the past years and is now Chief Tech Architect at DataSift. He's an international conference speaker and a long-time contributor to many open source projects. Lorenzo Alberton's profile on LinkedIN View Lorenzo Alberton's Twitter stream

Lorenzo Alberton - Sun Certified MySQL 5 Developer