June 18, 2013

Post: MySQL and the SSB - Part 2 - MyISAM vs InnoDB low concurrency

…Benchmark. In my previous blog post I compared MySQL 5.5.30 to MySQL 5.6.10, both with default settings using … SSB Flight #2 Flight #2 is similar to Flight #1. MyISAM is faster than InnoDB when the database …faster than InnoDB both cold and hot. SSB Flight #4 There is one query in this flight, Q4.3…

Post: Disconnecting a replication slave is easier with MySQL 5.5+ (RESET SLAVE vs. RESET SLAVE ALL)

… short For MySQL 5.0 and 5.1, run STOP SLAVE, CHANGE MASTER TO MASTER_HOST=” and then RESET SLAVE. For MySQL 5.5 and 5.6, run… supported from MySQL 5.5). If you want to know more details, please read on! MySQL 5.0/5.1 First let’s consider MySQL 5.0 and 5.1. RESET…_File: Read_Master_Log_Pos: 4 Relay_Log_File: mysql_sandbox18676-relay-bin.000001 Relay_Log_Pos: 4 [...] As stated in the documentation…

Post: MySQL 5.6 - InnoDB Memcached Plugin as a caching layer

…. Enter MySQL 5.6 with the memcached plugin… As part of the standard MySQL 5.6 GA…4 Single core VM 528M RAM Host-Only network 1 Box with http/php, 1 box with memcache or mysql… benchmark: // Identical config/code for memcached vs InnoDB $frontendOpts = array( ‘caching’ => true, ‘lifetime’ => 3600, ‘…

Post: Virident vCache vs. FlashCache: Part 2

…device. EXT4 is the filesystem, and CentOS 6.4 the operating system, although the pre-release modules… was sysbench 0.5 and the version of MySQL used was Percona Server 5.5.30-rel30.1-465. Each test… let’s look at some numbers. vCache vs. vCache – MySQL parameter testing The first test was designed to…

Post: Benchmarking Percona Server TokuDB vs InnoDB

…I wanted to compare InnoDB performance vs TokuDB. I have a particular … ). Also please note the transaction produces 4 INSERTs and workload is very write…that is why I also show 5-minute moving averages to TokuDB. …10G myisam_repair_threads = 1 myisam_recover socket=/var/lib/mysql/mysql.sock user=root …

Post: MySQL 5.6 vs MySQL 5.5 and the Star Schema Benchmark

… tested three configurations: Config 1: Default config for MySQL 5.5 and MySQL 5.6, no tuning at all Config 2: MySQL 5.6 with all default settings…). 12GB memory 4 disk 7200RPM RAID 10 array with 512MB write-back cache  Star Schema Benchmark – Scale Factor 1Mysql 5.5 vs 5.6 response times are in seconds (lower is better) Version Buffer Cold Run1 Run2 Run3 5.5.30 128M 361…

Post: Join Optimizations in MySQL 5.6 and MariaDB 5.5

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 5.51 1 1 1 1 1 Sort_scan 1 1 1 1 1 1vs 5G. However, there is one number in MariaDB 5.5 that is quite large as compared to MySQL 5

Post: TPC-H Run on MySQL 5.1 and 6.0

MySQL 5.1.23 vs 6.0.4 results for 10GB data set which “fits in memory”. The cut-off time for this test was 1… by 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 MySQL 6… about it in his MySQL 5.1 vs 6.0 in TPC-H Queries post As a Summary: We can see MySQL capabilities to run…

Post: MySQL 6.0 vs 5.1 in TPC-H queries

… with queries from TPC-H benchmarks, particularly comparing MySQL 6.0.4-alpha with 5.1. MySQL 6.0 is interesting here, as there is… 5.1 and 6.0 in cold mode (I dropped OS caches by `echo 1 > /proc/sys/vm/drop_caches` and restarting mysqld) 5.1 – time 1 hour 14 min 36.90 sec 6.0 – time 1 hour…

Comment: Announcing Percona XtraDB Cluster 5.5.29-23.7.1

… x86_64 1:5.5.29-23.7.1.387.rhel5 /Percona-XtraDB-Cluster-shared-5.5.29-23.7.1.387.rhel5.x86_64 3.4 M… rpm_check_debug vs depsolve: mysql conflicts with Percona-XtraDB-Cluster-client-5.5.29-23.7.1.387.rhel5.x86_64 mysql-devel conflicts with…-Cluster-shared-5.5.29-23.7.1.387.rhel5.x86_64 mysql-server conflicts with Percona-XtraDB-Cluster-server-5.5.29-23.7.1.387…