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stress-testing MySQL slave with master's queries

A MySQL host in a slave configuration is in the testing phase before being put into production as a primary server for a specific workload. To make an estimate about how it is going to perform, the ...
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How can I measure the number of IOPs for a certain query

I need to estimate the max IOPs for a certain MySQL DB (one that does not exist yet). The OS is Linux and the DB is MySQL 5.1.x (though I don't think the DB brand is important for the asked topic) ...
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Sysbench insert data between a given range

I was trying to insert 1000000 records of data into 1000 tables in sysbench. But after installing about 278, sybench just crashed with the following error: FATAL: failed to execute function ...
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How to find an application for a specific system?

I have a distributed storage platform that I wanted to test. I launched a benchmark (i.e. IOzone) over it, given the following workload: I/O size = 4kB, 100% read, and 100% write, random access. ...
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Benchmarking MyISAM vs InnoDB using Sysbench on MariaDB-10.0.14

I performed a "read" benchmark on MariaDB-10.0.14 db server using sysbench to compare performance between InnoDB and MyISAM on a single. Below are the sysbench commands i used: Create test table in ...
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Which benchmark assess string pattern matching in a database?

I have a postgresql DB in which I do a lot of string matching ala : UPDATE table1 SET colum1 = TRUE WHERE colum2 LIKE '%teststring%'; colum2 is a whole html file As I said I do A LOT of this and ...
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What dialect is recommended for MySQL when using TPC-DS query generator?

I am trying to do a benchmark using TPC-DS and I was wondering what value should be used in the parameter "Dialect" for the dsqgen when the tests are going to be performed in MySQL. Also, I was ...
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How to generate TPC_DS queries for Oracle?

I have downloaded the DSGEN tool from the TPC-DS web site and already generated the tables and loaded the data into Oracle XE. I am using the following command to generate the SQL statements: ...