June 19, 2013

Comment: Webinar: MySQL 5.6 Performance Schema

… I would also like to have a copy of the slides to reference/search in directly while trying out the MySQL Performance Schema tool…

Post: Sphinx search performance optimization: attribute-based filters

… common causes of a poor Sphinx search performance I find our customers face is misuse of search filters. In this article I will… superb Sphinx performance. The Problem While Sphinx is great for full text search, you can certainly go beyond full text search, but before… sort of like unindexed MySQL columns. They are the extra details you may want to filter by, which is usually things like gender…

Post: InnoDB Full-text Search in MySQL 5.6: Part 2, The Queries!

… records with name, address, and the like. We are using MySQL 5.5.30 and MySQL 5.6.10 with no configuration tuning… front of our search term, then that term *must* appear in the search results. But does it? With 5.5: mysql: SELECT id… that actually matches all three search terms, and in this case, both MyISAM and InnoDB FTS performed identically and found it. I…

Post: InnoDB Full-text Search in MySQL 5.6 (part 1)

…-text search in MySQL 5.6 (part 1) in MySQL 5.6 is syntactically identical to MyISAM full-text search, … to traditional MyISAM FTS. We’ll get to performance in the third installment. For now, the important…find that kind of behavior unsettling. I don’t like case-sensitivity in my table or column names…

Post: Scaling problems still exist in MySQL 5.5 and Percona Server 5.5

… world values distribution. The query looks something like this: SELECT * FROM table WHERE deleted = 0 … gain system shows from performance at 1 thread to the peak performance we see the number …search_to_nth_level,btr_p cur_open_with_no_init_func,row_sel_get_clust_rec_for_mysql,row_search_for_mysql

Post: Goal driven performance optimization

performance_log_081221 where page_type=’search‘ and wtime>1; +———-+—————–+——————+——————+——————+——————+ | count(*) | avg(wtime) | cpu_ratio | mysql… using mutliple components (like sphinx and MySQL) or multiple MySQL Servers because in …

Post: Full Text Search Webinar Questions Followup

…an overview of several Full Text Search solutions and compare their performance.  Even if you missed the webinar… the Windows partition, and one for the MySQL data partition.  I performed all the tests on this machine….I’d like to see some of the folks who viewed my Full-Text Search Throwdown webinar …

Post: Talking MySQL to Sphinx

….9.9-rc2 there is a support for MySQL wire protocol and SphinxQL – SQL-like language to query Sphinx indexes. This support… MySQL – it is implementation of the wire protocol from scratch. For this test I was not interesting in the full text search performance, we already know Sphinx is much faster than MySQL build in full text search. I was rather interested to look performance of…

Post: BoardReader - Forum Search Engine

… I would like to highlight – first you can use it to Search MySQL Forums Notice simple link structure – you can replace mysql.com in… any other domain to search forums from that domain. For example you can use this link to search our MySQL Performance Forums Second – note the graph which shows how many results were found matching this terms right from search results…

Post: Sphinx search performance optimization: multi-threaded search

Queries in MySQL, Sphinx and many other database or search engines are typically single-threaded. That is when you issue … in MySQL to define those ranges, mixing it with sql_query_range or something else, depending on how your data looks like… nearly as often as I should. Well, it’s not like it is slow or anything, but queries are never too…