I continue my benchmarks of Intel SSD 910, the raw IO results are available in my previous experiment. Now I want to test this card under MySQL workload to see if the card is suitable to use with MySQL. Benchmark date: Sep-2012 Benchmark goal: Test Intel SSD 910 under tpcc-mysql workload and compare with baseline [...]
Testing Intel® SSD 910
September 4, 2012 By 2 Comments
Intel came on PCI-e SSD market with their Intel SSD 910 card. With a slogan “The ultimate data center SSD” I assume Intel targets rather a server grade hardware, not consumer level. I’ve got one of this card into our lab. I should say it is very price competitive, comparing with other enterprise level PCIe [...]
Adaptive flushing in MySQL 5.6
September 4, 2012 By 8 Comments
As you may know, flushing in MySQL is an area of my interest, I wrote about it several times, i.e. http://www.mysqlperformanceblog.com/2011/09/18/disaster-mysql-5-5-flushing/ http://www.mysqlperformanceblog.com/2011/03/31/innodb-flushing-a-lot-of-memory-and-slow-disk/ http://www.mysqlperformanceblog.com/2011/01/03/mysql-5-5-8-in-search-of-stability/ In MySQL 5.6 there was implemented a new flushing logic, so I decided to check what do we have now.
Clarification on MySQL security vulnerability
June 19, 2012 By 2 Comments
Contrary to initial reports here and here, further investigation has revealed that under some specific and limited circumstances, Percona Server and Percona XtraDB Cluster binaries, similar to other MySQL variants, are susceptible to the security vulnerability in MySQL/MariaDB sql/password.c: 64bit Ubuntu Oneiric (11.10) binaries are vulnerable in Percona Server ONLY on some hardware/virtualization platforms (confirmed [...]
NO Security vulnerability in Percona Server / XtraDB Cluster provided binaries
June 11, 2012 By 13 Comments
Many of you heard of this nasty security vulnerability in MySQL, and as we are getting a lot of inquiries how does it affect Percona Server, I decided to address it in this post. The issue exists in the source code of MySQL 5.5.23 or earlier and MySQL 5.1.62 or earlier. The same is true [...]
Announcement of Percona XtraDB Cluster 5.5.24
June 7, 2012 By 4 Comments
I am happy to announce next version Percona XtraDB Cluster 5.5.24, which is mostly jump to the current version of Percona Server. It includes an important bug fix: table with no PK but still having UK, can cause crash in slave using PA Binaries are available from downloads area or from our repositories. For this [...]
btrfs – probably not ready yet
May 22, 2012 By 17 Comments
Every time I have a conversation on SSD, someone mentions btrfs filesystem. And usually it is colored as a solution that will solve all our problems, improve overall performance and SSD in particular, and it is a saviour. Of course it caught my curiosity and I decided to perform a benchmark similar to what I [...]
Intel 520 SSD in MySQL sysbench oltp benchmark
May 21, 2012 By 11 Comments
In my raw IO benchmark of Intel 520 SSD we saw that the drive does not provide uniform throughput and response time, but it is interesting how does it affect workload if it comes from MySQL. I prepared benchmarks results for Sysbench OLTP workload with MySQL running on Intel 520. You can download it there.
Announcement of Percona XtraDB Cluster 5.5.23
May 14, 2012 By 16 Comments
Our previous GA release of Percona XtraDB Cluster caused a lot of interest and feedback. I am happy to announce next version Percona XtraDB Cluster 5.5.23, which comes with bug fixes and improvements. List of changes: Fixes merged from upstream (Codership-mysql) Support for MyISAM, now changes to MyISAM tables are replicated to other nodes Improvements [...]
Testing Fusion-io ioDrive2 Duo
May 10, 2012 By 21 Comments
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. [...]
