EmergencyEMERGENCY? Get 24/7 Help Now!

A closer look at the MySQL ibdata1 disk space issue and big tables

 | August 21, 2014 |  Posted In: Benchmarks, InnoDB, Insight for DBAs, MySQL, Percona MySQL Support

A recurring and very common customer issue seen here at the Percona Support team involves how to make the ibdata1 file “shrink” within MySQL. I can only imagine there’s a degree of regret by some of the InnoDB architects on their design decisions regarding disk-space management by the shared tablespace* because this has been a big […]

Read More

Measuring failover time for ScaleArc load balancer

 | August 19, 2014 |  Posted In: Benchmarks, Insight for DBAs, MySQL, Percona MySQL Consulting, Percona Software, Percona XtraDB Cluster

ScaleArc hired Percona to benchmark failover times for the ScaleArc database traffic management software in different scenarios. We tested failover times for various clustered setups, where ScaleArc itself was the load balancer for the cluster. These tests complement other performance tests on the ScaleArc software – sysbench testing for latency and testing for WordPress acceleration. […]

Read More

Benchmarking IBM eXFlash™ DIMM with sysbench fileio

 | August 12, 2014 |  Posted In: Benchmarks, Insight for DBAs, MySQL

Diablo Technologies engaged Percona to benchmark IBM eXFlash™ DIMMs in various aspects. An eXFlash™ DIMM itself is quite an interesting piece of technology. In a nutshell, it’s flash storage, which you can put in the memory DIMM slots. Enabled by Diablo’s Memory Channel Storage™ technology, this practically means low latency and some unique performance characteristics. These […]

Read More

Sysbench Benchmarking of Tesora’s Database Virtualization Engine

 | June 24, 2014 |  Posted In: Benchmarks, MySQL, OpenStack

Tesora, previously called Parelastic, asked Percona to do a sysbench benchmark evaluation of its Database Virtualization Engine on specific architectures on Amazon EC2. The focus of Tesora is to provide a scalable Database As A Service platform for OpenStack. The Database Virtualization Engine (DVE) plays a part in this as it aims at allowing databases […]

Read More

Do not trust vmstat IOwait numbers

 | June 3, 2014 |  Posted In: Benchmarks, Insight for DBAs, MySQL, Percona Cloud Tools, Percona Server

I’ve been running a benchmark today on my old test box with conventional hard drives (no raid with BBU) and noticed something unusual in the CPU utilization statistics being reported. The benchmark was run like this:

Which means: create 64 threads and hammer the database with queries as quickly as possible. As the test […]

Read More

How to improve InnoDB performance by 55% for write-bound loads

 | May 23, 2014 |  Posted In: Benchmarks, Hardware and Storage, Insight for DBAs, MySQL, Percona Live

During April’s Percona Live MySQL Conference and Expo 2014, I attended a talk on MySQL 5.7 performance an scalability given by Dimitri Kravtchuk, the Oracle MySQL benchmark specialist. He mentioned at some point that the InnoDB double write buffer was a real performance killer. For the ones that don’t know what the innodb double write […]

Read More

Benchmark: SimpleHTTPServer vs pyclustercheck (twisted implementation)

 | May 16, 2014 |  Posted In: Benchmarks, Insight for DBAs, MySQL

Github user Adrianlzt provided a python-twisted alternative version of pyclustercheck per discussion on issue 7. Due to sporadic performance issues noted with the original implementation in SimpleHTTPserver, the benchmarks which I’ve included as part of the project on github use mutli-mechanize library, cache time 1 sec 2 x 100 thread pools 60s ramp up time 600s […]

Read More

Tips on benchmarking Go + MySQL

 | May 14, 2014 |  Posted In: Benchmarks, MySQL, Percona Cloud Tools, Percona Server, Percona Software

We just released, as an open source release, our new percona-agent (https://github.com/percona/percona-agent), the agent to work with Percona Cloud Tools. This agent is written in Go. I will give a webinar titled “Monitoring All MySQL Metrics with Percona Cloud Tools” on June 25 that will cover the new features in percona-agent and Percona Cloud Tools, […]

Read More

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

 | April 29, 2014 |  Posted In: Benchmarks, Insight for DBAs, MySQL

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 […]

Read More

ScaleArc: Benchmarking with sysbench

 | March 31, 2014 |  Posted In: Benchmarks, Insight for DBAs, MySQL, Percona Live, Percona MySQL Consulting

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 Uday Sawant (ScaleArc) and myself. You can also download the report directly as a PDF here. The goal of these benchmarks is to identify the potential overhead of the ScaleArc […]

Read More

Percona’s widely read Percona Data Performance blog highlights our expertise in enterprise-class software, support, consulting and managed services solutions for both MySQL® and MongoDB® across traditional and cloud-based platforms. The decades of experience represented by our consultants is found daily in numerous and relevant blog posts.

Besides specific database help, the blog also provides notices on upcoming events and webinars.
Want to get weekly updates listing the latest blog posts? Subscribe to our blog now! Submit your email address below and we’ll send you an update every Friday at 1pm ET.

No, thank you. Please do not ask me again.