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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.

Kafka proposed as Apache incubator project

PHP, Performance, Scalability, NoSQL, Message Queues, Kafka    24 June 2011
Kafka is a distributed publish-subscribe messaging system developed at LinkedIn, designed to support a very high throughput, persistent messages and parallel loading into Hadoop. A proposal has been submitted to make Kafka an Apache incubator project.

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".

PHPNW10 slides and new job!

PHP, Zend Framework, Apache, Performance, Scalability, Profiling    19 October 2010
Summary of the PHPNW10 conference, Slides about my talk "Profile your PHP application and make it fly" and new job!

The Art of Scalability - DPC10 wrapup

PHP, Database, Performance, Scalability    13 June 2010
A wrapup of the Dutch PHP Conference 2010. Uploaded slides of my talk "The Art of Scalability - Managing growth".

Profiling PHP applications with XHProf: the path to scalability

PHP, Tutorial, Performance, Scalability, Profiling    1 December 2009
My latest article on Profiling using XHProf, a neat tool developed at Facebook. A step-by-step tutorial to install and use XHProf, and some useful hints on how to improve performances and scalability of your PHP application.

Profiling PHP Applications with XHProf

PHP, Tutorial, Performance, Profiling    1 December 2009
An introduction to PHP Profiling using XHProf, and some techniques on how to get the most out of your application.

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