Mysql workbench query performance test

mysql workbench query performance test

You can decide this by referring to benchmark query execution time for your use case. Using logs to measure query time gives you a lot of. In addition, there is a brief overview of some MySQL performance MySQL Workbench, and Query Profiler in dbForge Studio for MySQL. The simplest way is to run the query in the command line, MYSQL is set to show the query execution time by default. · Similarly, with tools like. 56 FORD THUNDERBIRD Mysql workbench query performance test cyberduck path


If no index is used, consider adding indexes for large tables. Errors or Warnings — Lists statements that have raised errors or warnings. Database Schema Statistics. Note that for instances with a large number of objects, this report may require extended time to execute. Schema Index Statistics — Shows the general statistics related to indexes. Schema Table Statistics — Shows the general statistics related to tables.

Tables with Full Table Scans — Finds tables that are being accessed by full table scans, ordering by the number of rows scanned descending. Wait Event Times Expert. Global Waits by Time — Lists the top global wait events by their total time, ignoring idle this may not be very large.

Waits by User by Time — Lists the top wait events by user and by their total time, ignoring idle this may not be very large. Wait Classes by Time — Lists the top wait classes by total time, ignoring idle this may not be very large. Waits Classes by Average Time — Lists the top wait classes by average time, ignoring idle this may not be very large. InnoDB Statistics. User Resource Use. Overview — Shows the resource use summary for each user.

Statement Statistics — Shows the statement execution statistics for each user. Performance Dashboard. Performance Schema Reports. Query Statistics. How To Report Bugs or Problems. Installation and Configuration. Figure 7. Performance Report Controls. So, as told in the other postings, you should flush your tables in between the queries. Shouldn't your testing take into account that InnoDB will itself have different states during actual performance, such that you become interested in aggregate performance over multiple trials?

How "real" is your performance testing going to be if you want to reset InnoDB for every trial? The query you reject because it performs poorly immediately after restart might be far and away the best query after InnoDB has warmed up a little bit. There's much written about how to tune InnoDB, but it helps to have good queries to start. Have you tried turning query caching off altogether? Have you considered using Maatkit?

One of its capabilities I'm slightly familiar with is to capture MySQL network data with tcpdump and process the dump with mk-query-digest. This tool allows you to show some fine grained details about each query. But there's a whole bunch of other tools which should make query analysis easier. You could try the mysql workbench, i thought it had a sql statement monitor so you can see how fast it is and why it is fast.

Like previously said, you must consider the cache state when comparing results, a primed cache gives extremely performant queries. Finegrained tuning of queries is not a silver bullet, you might be adding complexity to your application for the sake of optimizations that overall in a production enviroment, are negligible. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

Learn more. Testing performance of queries in mysql Ask Question. Asked 11 years, 11 months ago. Modified 10 years, 6 months ago. Viewed 49k times. Improve this question. Martin Vseticka Unreason Unreason Yes, I know that this kind of queries will have to do a lot of comparisons.

The issue is that the query is more complicated and I am usually able to rewrite it in several ways - each of which performs differently. My goal is to reliably measure difference in performance. Add a comment. Sorted by: Reset to default. Highest score default Date modified newest first Date created oldest first.

Improve this answer. David M David M 4, 2 2 gold badges 27 27 silver badges 40 40 bronze badges. Bram Schoenmakers Bram Schoenmakers 1, 13 13 silver badges 19 19 bronze badges. Maatkit is on my list of tools to test. What are the others? Well, I was probably too sleepy when I wrote that.

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