EmergencyEMERGENCY? Get 24/7 Help Now!

Monthly Archives: June 2009

Few more ideas for InnoDB features

As you see MySQL is doing great in InnoDB performance improvements, so we decided to concentrate more on additional InnoDB features, which will make difference. Beside ideas I put before https://www.percona.com/blog/2009/03/30/my-hot-list-for-next-innodb-features/ (and one of them …

Read More
 
check-unused-keys: A tool to interact with INDEX_STATISTICS
by:

With the growing adoption of Google’s User Statistics Patch**, the need for supporting scripts has become clear. To that end, we’ve created check-unused-keys, a Perl script to provide a nicer interface than directly querying the …

Read More
 
Another look at improving TPC-H-like queries – Q17
by:

Summary: An alternate approach, offered in response to our original post, provides excellent improvements for smaller databases, but clustered indexes offer better performance as database size increases. (This posting is by Dave.) Jay Pipes suggested …

Read More
 
A Second Rule of Thumb for Choosing Column Order in Indexes

A couple of weeks ago, Baron Schwartz wrote an interesting post describing a rule of thumb he sometimes uses to choose the order of columns in an index. In a nutshell, he recommends putting highly …

Read More
 
Hosting the BOF at Velocity Conference

I have not got a chance to have a standard session on Velocity Conference this year, However I’m hosting the BOF. Bring your flash, IO Performance, and general performance stories and questions if you have …

Read More
 
Scaling IO Bound Workloads Webinar

I will co-present in webinar on Performance Challenges and Solutions for IO Bound Workloads in MySQL. My part of the presentation will be speaking about why switching from CPU bound workload to IO bound is …

Read More
 
Announcing Percona.tv
by:

Today marks the official launch of Percona.tv. We’ll be uploading technical screencasts, conference video, and anything else cool we can think up. If you’ve got ideas or requests, let us know and we’ll do our …

Read More
 
Slow DROP TABLE

It is a known fact that ext3 is not the most efficient file system out there and for example file removals can be painfully slow and cause a lot of random I/O. However, as it …

Read More
 
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 …

Read More
 
Improving TPC-H-like queries – Q17
by:

Executive Summary: A query like TPC-H Query 17 can be sped up by large factors by using straight_joins and clustering indexes. (This entry posted by Dave.) In a previous post, we wrote about queries like …

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.

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