Post: Intel Nehalem vs AMD Opteron shootout in sysbench workload
… took sysbench oltp ( both read-only and read-write) and MySQL 5.6.2 as it seems most scalable system at the moment… actually suspect this is rather MySQL problem, and 32 cores may be limit of scaling...
View ArticlePost: TPC-H Run on MySQL 5.1 and 6.0
… here So let us first take a look at MySQL 5.1.23 vs 6.0.4 results for 10GB data set which “fits… MySQL 5.1 time so if it is less than 1 MySQL 6.0 is faster if more than 1 slower: Query MySQL 5.0.23...
View ArticlePost: MySQL 5.6.7-RC in tpcc-mysql benchmark
… bumped into two bugs: MySQL 5.6.7 locks itself on CREATE INDEX MySQL 5.6.7-rc crashed under tpcc-mysql workload But at the end… get more stable results. So there it is with 2x4GB vs 2x8GB innodb...
View ArticlePost: Index Condition Pushdown in MySQL 5.6 and MariaDB 5.5 and its...
… preparation for the talk comparing the optimizer enhancements in MySQL 5.6 and MariaDB 5.5. We are taking a look at and benchmarking optimizer… enhancement Index Condition Pushdown (ICP). Its...
View ArticlePost: Join Optimizations in MySQL 5.6 and MariaDB 5.5
… time for MySQL 5.6 becomes approximately equal to that of MySQL 5.5. MariaDB 5.5 is quite slow as compared to both MySQL 5.5 and MySQL 5.6. For MariaDB 5.5 the… status counters. Counter Name MySQL...
View ArticlePost: Read/Write Splitting with PHP Webinar Questions Followup
… different modes on successive queries. Q: Is RBR faster replicating vs SBR replication? RBR is faster than statement based, correct? A… production. Even the official manual page for MySQL Proxy...
View ArticlePost: Common MySQL traps webinar questions followup
…: Do you have a recommendation on when to use ENUM vs. CHAR? Especially for one character values? Let’s say you… all versions of MySQL? If not which versions? The recommendations I made are valid for...
View ArticleComment: Is MySQL 5.6 slower than MySQL 5.5?
… mysql-5.5.30-linux2.6-x86_64.tar.gz -rw-rw-rw- 1 root root 303263359 Jan 23 03:55 mysql-5.6.10-linux-glibc2.5… the post this is not about testing the best tuned 5.5 vs 5.6 but rather to see how out...
View ArticlePost: Mystery Performance Variance with MySQL Restarts
Based on a lot of surprising comments about my MySQL 5.5 vs 5.6 performance post I decided to perform deeper investigation to see … confirm there is a significant performance difference between MySQL...
View ArticlePost: MySQL 5.5 and 5.6 default variable values differences
As the part of analyzing surprising MySQL 5.5 vs 5.6 performance results I've been looking at changes to default .../msb_5_5_30/data/mysq | /mnt/data/sandboxes/msb_5_6_10/data/mysq | |...
View ArticlePost: MySQL 5.6 vs MySQL 5.5 and the Star Schema Benchmark
…=”alignright” width=”210″] MySQL 5.6 vs MySQL 5.5 & the Star Schema Benchmark[/caption] So far most of the benchmarks posted about MySQL 5.6 use the sysbench OLTP… MySQL 5.5 and MySQL 5.6, no...
View ArticlePost: MySQL Backup tools used by Percona Remote DBA for MySQL
… these major components: Percona XtraBackup for MySQL for binary backups mydumper for logical backups mysqlbinlog 5.6 Amazon S3 monitoring for all the… as painless as possible. Compressed mydumper...
View ArticleComment: MySQL 5.6 - InnoDB Memcached Plugin as a caching layer
... any information how memcached cache time expiry being apply into MySQL 5.6 memcached. e.g. if i want to store a cache... cache life time as 12hours. Can this apply to the MySQL innodb memcache?...
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InnoDB Full-text Search in MySQL 5.6: Part 2, The Queries!
InnoDB Full-text Search in MySQL 5.6: Part 2, The Queries!This is part 2 in a 3 part series. In part 1, we took a quick look at some initial configuration of InnoDB full-text search and discovered a...
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Testing the Virident FlashMAX II
Approximately 11 months ago, Vadim reported some test results from the Virident FlashMax 1400M, an MLC PCIe SSD device. Since that time, Virident has released the FlashMAX II, which promises both...
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Is your MySQL buffer pool warm? Make it sweat!
li, ol { font-size: 12px !important }Today’s blog post diving into the waters of the MySQL buffer pool is a cross-post from Groupon’s engineering blog, and is Part 1 of 2. Thank you to Kyle Oppenheim...
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Percona XtraDB Cluster 5.5.30-23.7.4 for MySQL now available
Percona is glad to announce the release of Percona XtraDB Cluster 5.5.30-23.7.4 for MySQL on April 17, 2013. Binaries are available from the downloads area or from our software repositories.New...
View ArticleDisconnecting a replication slave is easier with MySQL 5.5+ (RESET SLAVE vs....
It’s not uncommon to promote a server from slave to master. One of the key things to protect your data integrity is to make sure that the promoted slave is permanently disconnected from its old master....
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Percona Monitoring Plugins 1.0.3 for MySQL now available
Percona is glad to announce the release of Percona Monitoring Plugins 1.0.3 for MySQL — high-quality components to add enterprise-grade MySQL monitoring and graphing capabilities to your existing...
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More on MySQL transaction descriptors optimization
Since my first post on MySQL transaction descriptors optimization introduced in Percona Server 5.5.30-30.2 and a followup by Dimitri Kravchuk, we have received a large number of questions on why the...
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