November 23, 2014

ScaleArc: Real-world application testing with WordPress (benchmark test)

ScaleArc recently hired Percona to perform various tests on its database traffic management product. This post is the outcome of the benchmarks carried out by me and ScaleArc co-founder and chief architect, Uday Sawant. The goal of this benchmark was to identify ScaleArc’s overhead using a real-world application – the world’s most popular (according to […]

QA: Advanced Option Combinatorics (Pairwise Testing): Combinatorial mysqld Option Test Case Generation

How do we ensure that, when we have 35+ testable option combinations for mysqld, we test each and every combination of them? For example: will a different innodb_log_file_size combined with more innodb_log_files_in_group and a modified innodb_fast_shutdown setting truly not affect Percona’s log archiving feature? Most option-related bugs are caused by the setting of 1 or […]

Serious build and testing automation

Here at Percona we’ve spent a lot of time improving our development and testing practices. Why? Because constant innovation keeps us ahead and more productive. We want to work smarter, not harder. One of the tools we use is the Jenkins Continuous Integration server. We use Jenkins pretty heavily to help with out development processes […]

Testing Fusion-io ioDrive2 Duo

I was lucky enough to get my hands on new Fusion-io ioDrive2 Duo card. So I decided to run the same series of tests I did for other Flash devices. This is ioDrive2 Duo 2.4TB card and it is visible to OS as two devices (1.2TB each), which can be connected together via software RAID. […]

Testing Fusion-io ioDrive – now with driver 3.1

In my previous post with results for Fusion-io ioDrive we saw some instability in results, I was pointed that it may be fixed in new drivers VSL 3.1.1. I am not sure if this driver is available for everyone – if you are interested, please contact your Fusion-io support representative. I installed new drivers and […]

Testing Fusion-io ioDrive

Following my series of posts on testing different SSD, in my last post I mentioned that SATA SSD performance is getting closer to PCIe cards. It really makes sense to test it under MySQL workload, but before getting to that, let me review the same workload on Fusion-io ioDrive PCIe card. This is yet previous […]

Testing Percona Replication Manager (prm) with Vagrant

If you have recently attended some Percona Live events or if you have checked some slides from Yves Trudeau, you may have heard about Percona Replication Manager (PRM), a new high availability tool for MySQL. Percona Live DC 2012 Percona Live MySQL Conference & Expo 2012   PRM is an OCF Resource Agent for Corosync […]

Testing FusionIO: strict_sync is too strict…

With new updates of FusionIO drivers I was able to test it on our Dell R900 with Ubuntu 8.10 without pain of compiling drives myself and downgrading to older kernel, so I was decided to test it in strict_sync mode. As I understand FusionIO in default mode, like Intel SSD, is “lying” to application, and […]

Testing InnoDB “Barracuda” format with compression

New features of InnoDB – compression format and fast index creation sound so promising so I spent some time to research time and sizes on data we have on our production. The schema of one of shards is

Reducer.sh – A powerful MySQL test-case simplification/reducer tool

Let me start by saying a big “thank you” to the staff at Oracle for deciding to open source reducer.sh. It’s a tool I developed whilst I was working for them several years ago. Its sole purpose is to do one thing – but do it good: test-case simplification. So, let’s say some customer just […]