June 19, 2013

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

…on the Star Schema Benchmark. In my previous blog post I compared MySQL 5.5.30 to MySQL 5.6.10, both… Flight #2 Flight #2 is similar to Flight #1. MyISAM is faster than InnoDB when the …recommended to prevent assorted security risks symbolic-links=0 innodb_stats_persistent innodb_stats_auto_update=off…

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

… the plugin: http://dev.mysql.com/doc/refman/5.6/en/innodb-memcached-setup.html As a quick benchmark, I ran some batches of fetch and store against both a standard memcached instance and a minimally tuned MySQL 5.6… ms range per/cmd Fetching [1,000,000] items: 288257 ms total 0.288257 ms per/cmd 0.2843 ms min per/cmd…

Post: MySQL and Percona Server in LinkBench benchmark

… run this benchmark, can be found here. We decided to run this benchmark for MySQL Server 5.5.30, 5.6.11 and Percona Server 5.5.30…_type=0 performance_schema=0 #56only loose-innodb_flush_neighbors=0 loose-metadata_locks_hash_instances=256 innodb_buffer_pool_instances=16 # MySQL 5.5 and 5… 10x dataset: ./bin/linkbench -D dbid=linkdb -D host=127.0.0.1 -D user=root -D port=3306 -D password= -D maxid1…

Post: More on MySQL transaction descriptors optimization

5.5.30-30.2 and a followup by Dimitri Kravchuk, we have received a large number of questions on why the benchmark… on case #1. Which is the perfect case for read-only transaction optimization in MySQL 5.6,… [mysqld] user=root port=3306 innodb_status_file=0 innodb_data_file_path=ibdata1:100M:autoextend…

Post: Benchmarking Percona Server TokuDB vs InnoDB

… non-decreasing ID $K=rand(0,10000) // distributed by pareto distribution … if you want to repeat this benchmark, the sysbench code is on…5.5.30-rel30.2-500.Linux.x86_64/lib/mysql/libjemalloc.so [mysqld] gdb datadir=/mnt/data/mysql…innodb_flush_log_at_trx_commit = 1 innodb_buffer_pool_size = 36G innodb…

Post: Virident vCache vs. FlashCache: Part 2

… the benchmarks on both systems. The benchmark tool used was sysbench 0.5 and the version of MySQL used was Percona Server 5.5.30-rel30.1-465… think vCache can be declared the clear winner. Base MySQL & Benchmark Configuration All benchmarks were conducted with the following: sysbench ­­–num­-threads=32…

Post: Death match! EBS versus SSD price, performance, and QoS

…do benchmarks, but that would not be interesting — we already know that benchmarks0.0 0.0 0.0 0.0 0.0 2.5 0% 0 23.2 sdi2 0.0 0.0 0.0 0.0 0.0 2.0 0% 0 23.2 sdj5 0.0 0.0 0.0 0.0 0.0 1.0 0% 0 23.2 sdi4 0.0 0.0 0.0 0.1 0.0 2.2 1% 0 23.2 sdi3 0.0 0.0 0.0 0.1 0.0 2.5 1% 0 23.2 sdj3 0.0 0.0 0.0 0.1 0.0

Post: Multi Range Read (MRR) in MySQL 5.6 and MariaDB 5.5

… the benchmark on IO bound workload, mentioned above. Counter Name MySQL 5.5 MySQL 5.6 MySQL 5.6 w/ read_rnd_bufer_size=4M MariaDB 5.5 MariaDB 5.5 w/ mrr_buffer_size=4M Created_tmp_disk_tables 1 1 1 1 1 Created_tmp_tables 1 1 1 1 1 Handler_mrr_init N/A 0 0 1 1 Handler…

Post: Join Optimizations in MySQL 5.6 and MariaDB 5.5

benchmarks, to see the difference in numbers. Benchmark results For the purpose of this benchmarkMySQL 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

Post: DROP TABLE and stalls: Lazy Drop Table in Percona Server and the new fixes in MySQL

MySQL used for benchmarking pre 5.5.23 DROP TABLE implementation is MySQL 5.5.15, the version of MySQL used for benchmarking the new DROP TABLE implementation is MySQL 5.5