May 24, 2012

Comment: How much memory Innodb locks really take ?

… VB6 to PhP/MySQL/Apache/InnoDB. Do you think you can show a program where row-locks are used by one user to lock…

Comment: Testing Fusion-io ioDrive - now with driver 3.1

…: when you configure MySQL, what portion of it resides on the Fusion-IO card? Do you just have your datadir on there? Or is it more complex than that? I’m new to Fusion-IO and I am going to do some testing with a couple of MySQL servers with ioDrive2 cards…

Comment: ext4 vs xfs on SSD

Benoit, nice little script you’ve got there; using it!

Comment: Learning about MySQL Table Fragmentation

… set files_per_table variable. i executed the following query to know the fragmentation SELECT TABLE_SCHEMA, TABLE_NAME, CONCAT(ROUND… table could not be defragmented. is there any other way to defragment innodb tables? thanks Kuldeep

Comment: How SHOW SLAVE STATUS relates to CHANGE MASTER TO

Is there any option to save the result of show slave status in a table like insert into temp show slave status;

Comment: Benchmarking single-row insert performance on Amazon EC2

Aaron, No particular reasons, it doesn’t matter if you have 4 1G or 2 2GB log files, as they are all concatenated together by InnoDB and written to in a circular fashion.

Post: Announcement of Percona XtraDB Cluster 5.5.23

mysql) Support for MyISAM, now changes to MyISAM tables are replicated to other nodes Improvements to XtraBackup SST methods, better error handling New SST wsrep_sst_method=skip, useful whento know more how to migrate to

Post: Testing Samsung SSD SATA 256GB 830 - not all SSD created equal

to use async IO mode. There are two reasons for that. First, MySQL/InnoDB usesto see how stable the performance is, and it really helps to… time). When there …cache or something. ToMySQL Conference 2012, if you did not attend my talk – you are welcome to join the webinar. Follow @VadimTk !function

Comment: Load management Techniques for MySQL

when the DB load increases. And better yet, you could use Percona MySQL Cluster to have a dedicated master for all batch job processing and use Gearman Workers to apply updates to this dedicated master, using pacing…

Post: Testing Fusion-io ioDrive

to PCIe cards. It really makes sense to test it under MySQL workload, but before getting toto have such variety in throughput. It gets even more interesting when we go to…timeline (from 0 to 1800 sec): I am not sure how to explain it, that…and read IO cases. Follow @VadimTk !function(d,s,id){var js,…