October 26, 2014

MySQL and PostgreSQL SpecJAppServer benchmark results

Listening to Josh Berkus presentation on OSCON today I decided to take a closer look at SpecJAppServer benchmarks results which were published by PostgreSQL recently and which as Josh Puts it “This publication shows that a properly tuned PostgreSQL is not only as fast or faster than MySQL, but almost as fast as Oracle (since […]

Top 5 Wishes for MySQL

About a week ago Marten send me email pointing to his article published on Jays Blog (Come on Marten, it is time for you to get your own blog). I should have replied much earlier but only found time to do that now. So here is my list 1. Be Pluggable Unlike many OpenSource projects […]

MySQL – to use or not to use

Reading this slashdot article today and two CIO magazine articles linked from it. Such discussions started at right place at right time always attract a lot of flamers and can be fun to read. What hit me this time is quality of the articles in CIO magazine. If this is what managers suppose to use […]

MySQL Storage Engines – PBXT

I promised to write little articles about all storage engines which sessions I attended during MySQL Users Conference but I did not get too far yet, too busy. So today it is time for PBXT. I was very interested about session about PBXT because this is storage engine does not target the same general purpose […]

MySQL/Innodb scalability tests after fix

This is not freshest news ever but I simply have not yet had a time to comment on it. I already wrote about interesting benchmarks Tweakers.net have done for MySQL and PostgreSQL with different CPUs. I was in contact with Tweakers.net team to see if they miss something obvious in MySQL settings as well as […]

MySQL wins C’T Database Contest

Today MySQL published the press release with results of Database Contest (results on German available here http://www.mysql.de/ct-dbcontest). Peter and me spent quite some time working on this project while being employed by MySQL and it is great to see results finally publicly available. The story began about year ago when C’T magazine had called for […]

Why MySQL could be slow with large tables ?

If you’ve been reading enough database related forums, mailing lists or blogs you probably heard complains about MySQL being unable to handle more than 1.000.000 (or select any other number) rows by some of the users. On other hand it is well known with customers like Google, Yahoo, LiveJournal,Technocarati MySQL has installations with many billions […]

WITHer Recursive Queries?

Over the past few years, we’ve seen MySQL technology advance in leaps and bounds, especially when it comes to scalability. But by focusing on the internals of the storage engine for so long, MySQL has fallen behind regarding support for advanced SQL features. SQLite, another popular open-source SQL database, just released version 3.8.3, including support […]

How Percona strives to remain neutral and independent

Many of the prominent companies in the MySQL ecosystem are Percona customers, including hardware manufacturers, software developers, hosted service providers, and appliance developers. We perform paid and unpaid research on their products, and we publish blog posts related to their products or services. Independence and objectivity are core Percona values. How do we balance the […]

Shard-Query adds parallelism to queries

Preamble: On performance, workload and scalability: MySQL has always been focused on OLTP workloads. In fact, both Percona Server and MySQL 5.5.7rc have numerous performance improvements which benefit workloads that have high concurrency. Typical OLTP workloads feature numerous clients (perhaps hundreds or thousands) each reading and writing small chunks of data. The recent improvements to […]