Performance on FromDual GmbH

dbstat for MariaDB after one month of productive use

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 26 Apr 2024 14:13:55 +0000

Review

After we introduced dbstat for MariaDB (and MySQL) a good 5 weeks ago, we naturally also rolled it out on our systems to test the behaviour in daily use (eat your own dog food).

dbstat for MariaDB (and MySQL)

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 14 Mar 2024 15:36:57 +0000

An idea that I have been thinking about for a long time and have now, thanks to a customer, finally tackled is dbstat for MariaDB/MySQL. The idea is based on sar/sysstat by Sebastien Godard:

Comparing Optimizer Results

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 18 Nov 2022 10:59:18 +0000

A while ago I read a paper about Optimizer Benchmarks: How Good Are Query Optimizers, Really? by Viktor Leis from Fakultät für Informatik of the Technische Universität München.

FromDual Performance Monitor for MariaDB/MySQL allows SNMP monitoring

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 23 Jun 2022 12:03:59 +0000

The newest release of the Performance Monitor for MariaDB and MySQL v2.0.0 (fpmmm) allows you to monitor your MariaDB and MySQL databases via SNMP (Simple Network Management Protocol).

SQL Query Tuning - Performance

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 05 Oct 2020 16:13:10 +0000

How could the following SQL queries be improved performance wise and otherwise and can you also explain why your change is more optimal?

Creating synthetic data sets for tuning SQL queries

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 02 Oct 2020 16:50:33 +0000

When it comes to SQL Query tuning with customers we often get the slow running SQL query and possibly, in good cases, also the table structure. But very often, for various reasons, we do not get the data.

innodb_deadlock_detect - Rather Hands off!

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 23 Mar 2020 11:24:15 +0000

Recently we had a new customer who has had from time to time massive database problems which he did not understand. When we reviewed the MySQL configuration file (my.cnf) we found, that this customer had disabled the InnoDB Deadlock detection (innodb_deadlock_detect).

Do not underestimate performance impacts of swapping on NUMA database systems

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 21 Jun 2019 09:26:59 +0000

If your MariaDB or MySQL database system is swapping it can have a significant impact on your database query performance! Further it can also slow down your database shutdown and thus influence the whole reboot of your machine. This is especially painful if you have only short maintenance windows or if you do not want to spend the whole night with operation tasks.

To NULL, or not to NULL, that is the question!

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 14 Dec 2018 08:33:25 +0000

As we already stated in earlier articles in this blog
[1 and 2
] it is a good idea to use NULL values properly in MariaDB and MySQL.

Download Performance Monitor

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 07 Aug 2015 15:41:50 +0000

FromDual Performance Monitor for MySQL and MariaDB including MaaS

The FromDual Performance Monitor for MySQL, Galera Cluster, MariaDB and Percona Server is a Monitoring solution based on Zabbix. Its various alerts, advisors and graphs help you to monitor and operate your MySQL databases. This solution is also available as Monitoring as a Service solution if you want to avoid the hassle of installing your own monitoring solution.

InnoDB Flush Log at Transaction Commit

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 16 Jul 2015 20:11:36 +0000

InnoDB Flush Log at Transaction Commit is set to a values != 1. This can lead to a loss of committed transactions in case of a power failure or an unclean shutdown of your database.

Nagios and Icinga plugins for MySQL 1.0.0 have been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 04 Feb 2015 22:02:00 +0000

FromDual has the pleasure to announce the release of the new version 1.0.0 of its widely used Nagios and Icinga plugins for MySQL, Galera Cluster, MariaDB and Percona Server.

Impact of General Query Log on MySQL Performance

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 08 Apr 2014 11:19:06 +0000

Sometimes, it is required to enable the General Query Log (which is disabled by default). If the General Query Log is enabled the server writes to this log information when clients connect or disconnect, and each SQL statement received from the client.

MySQL single query performance - the truth!

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 13 Dec 2013 17:33:44 +0000

MySQL single query performance - the truth!

As suggested by morgo I did a little test for the same query and the same data-set mentioned in Impact of column types on MySQL JOIN performance but looking into an other dimension: the time (aka MySQL versions).

Deadlocks, indexing and Primary Key's

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 16 Aug 2012 10:51:40 +0000

Recently a customer has shown up with some deadlocks occurring frequently. They were of the following type (I have shortened the output a bit):

How to make the MySQL Performance Monitor work on Windows?

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 20 Apr 2012 18:22:00 +0000

What can MySQL performance monitoring graphs tell you?

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 16 Feb 2012 18:32:45 +0000

Many of you may monitor their databases for different purposes. Beside alerting it is often good to also make some graphs from MySQL performance counters to see what is actually happening on your database.

MaaS Key Request

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 18 Jan 2012 17:26:37 +0000

' . 'ERROR: Internal error. File does not exist.' . '

MySQL JMeter Webshop Benchmark

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 10 Aug 2011 17:23:02 +0000

Abstract: In this article we provide a little JMeter WebShop Example Benchmark for MySQL.

How good is MySQL INSERT TRIGGER performance

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 03 Aug 2011 17:08:36 +0000

Abstract: In this article we discuss how big is the performance impact of MySQL TRIGGERs compared to application side logging (with INSERT) into a MySQL table.

MySQL Performance Monitor with DRBD monitoring capabilities

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sat, 26 Mar 2011 11:25:31 +0000

The FromDual Performance Monitor for MySQL has now a new module for monitoring DRBD. Since more an more of our customers want to run MySQL High Availability solutions based on DRBD we have implemented this module.

Impact of indices on MySQL

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 31 Dec 2010 17:05:17 +0000

It is generally well known that indexes help a lot to speed up database queries (especially SELECT but also UPDATE and DELETE). It is less known, that indexes also have some disadvantages.

MySQL Performance Monitor

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 18 Aug 2010 11:31:12 +0000

FromDual launches its database Performance Monitoring solution for MySQL, Percona Server and MariaDB. This solution provides monitoring capabilities for most MySQL Storage Engines (Aria, InnoDB, MyISAM, NDB, PBXT and XtraDB). Further you can monitor MySQL Master - Slave replication set-ups, UNIX processes (mysqld, ndbd) and MySQL specific information.

MariaDB and MySQL Benchmarking

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 11 Mar 2010 23:29:59 +0000

Database Benchmark

sysbench (filesystems and OS/HW tests), Sysbench source, sysbench v0.5, sysbench scripts
OSDL Database Test Suite (download)
DBT2 (TPC-C, OLTP), DBT2 Benchmark Tool for MySQL
DBT3 (TPC-H, complex and long running queries, data warehouse (DWH))
TM1 (3^rd party, ODBC, telecom benchmark)
TPC Benchmarks
TPCC-mysql
db_STRESS
HammerDB
db_bench
Acronis perfkit (benchmark, benchmark-db)
Web3Bench (TiDB, MySQL written in Java/Python)
Finch (Finch is a MySQL benchmark tool developed for software engineers and modern infrastructures.)

General Benchmarking Tools

Apache JMeter: To test performance on static and dynamic resources (files, Servlets, Perl scripts, Java Objects, Data Bases and Queries, FTP Servers and more).
Gatling: Gatling is a highly capable load testing tool. It is designed for ease of use, maintainability and high performance.
Tsung: Open-source multi-protocol distributed load testing tool.
Slamd Java-based Distributed Load Generation Engine application designed for stress testing and performance analysis of network-based applications.
Grinder A Java load testing framework that makes it easy to run a distributed test using many load injector machines.
mysqlslap mysqlslap is a diagnostic program designed to emulate client load for a MySQL server and to report the timing of each stage. It works as if multiple clients are accessing the server.
bm
httperf
apachebench (ab)

CPU Benchmarking

CoreMark

Disk benchmarking

FIO
Filesystem Benchmark: IOzone, Bonnie
Harddisk-Benchmark: Bonnie++, Iometer

# bonnie -s 2047 -S 10000

Bonnie 1.4: File './Bonnie.12330', size: 2146435072, volumes: 1
Writing with putc()... done: 20440 kB/s 89.7 %CPU
Rewriting... done: 18940 kB/s 18.3 %CPU
Writing intelligently... done: 46256 kB/s 28.8 %CPU
Reading with getc()... done: 18771 kB/s 82.1 %CPU
Reading intelligently... done: 32549 kB/s 17.3 %CPU

 ---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
 -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --10k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
master 1*2047 20440 89.7 46256 28.8 18940 18.3 18771 82.1 32549 17.3 183.6 1.5

with fsync

Presentations

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 26 Feb 2010 21:29:43 +0000

The following presentations are available:

Date	Title	Location	Lang
November, 2025	MySQL Honeypot (PDF, 324 kib)	DOAG 2025 Konferenz + Ausstellung, 18 - 20 November 2025, Nürnberg, D	D
November, 2024	MySQL Performance Tuning (PDF, 791 kib), Was ist neu in MySQL 8.4? (PDF, 407 kib)	DOAG 2024 Konferenz + Ausstellung, 19 - 21 November 2024, Nürnberg, D	D
August, 2024	Was ist neu in MariaDB 11.4? (PDF, 271 kib)	FrOSCon 2024, 17 and 18 August 2024, St. Augustin, D	D
November, 2023	Das relationale Open Source Datenbank Ökosystem - IT strategische Gedanken (PDF, 496.4 kib)	DOAG 2023 Konferenz + Ausstellung: 22 November 2023, Nürnberg, D	D
November, 2023	MariaDB und MySQL HA Lösungen - Ein Datenbank-Quartett im Hochverfügbarkeitsvergleich (PDF, 30.2 kib)	DOAG 2023 Konferenz + Ausstellung: 21 November 2023, Nürnberg, D	D
November, 2023	Upgrade MySQL 5.7 Galera Cluster auf MySQL 8.0 (PDF, 132.7 kib)	Galera Webinar, 17 November 2023, Webinar, DACH	D
May, 2023	Galera Cluster for MySQL and Master/Slave Replication (PDF, 300.1 kib)	Datenbank-Tage 2023, 24 and 25 May 2023, virtual in Frankfurt, Germany	D
May, 2023	MariaDB - aber sicher! (PDF, 1.1 Mib)	Secure Linux Administration Converence (SLAC) 2023, 23 to 25 May 2023, Berlin, Germany	D
September, 2022	Galera Cluster for MySQL and Master/Slave Replication (PDF, 223 kib), MySQL Point-in-Time-Recovery (PiTR) (PDF, 154 kib)	DOAG 2022 Konferenz + Ausstellung, 20 to 23 September 2022, Nürnberg, Germany	D
March, 2022	MariaDB Galera Cluster and M/S replication (PDF, 352 kib)	Chemnitzer Linux-Tage, 12 and 13 March 2022, virtual in Chemnitz, Germany	D
February, 2022	MariaDB Connection ID (PDF, 301 kib), MariaDB Galera Cluster and M/S replication (PDF, 239 kib), MariaDB Point-in-Time-Recovery (PDF, 168 kib)	FOSDEM 2022, 5/6 February 2022, virtual in Brussels, Belgium	E
November, 2021	MySQL Security (PDF, 266 kib)	DOAG 2021 Conference and Expo, 16 - 18 November 2021, virtual in Nuremberg, Germany	D
February, 2021	Mariabackup - too rarely used (PDF, 226 kib)	FOSDEM 2021, MariaDB devroom, 6/7 February 2021, Brussels, remote, Belgium	E
December, 2020	MariaDB and MySQL for Web Developers (PDF, 623 kib), Examples	Web Developer Congress 2020, 18 - 20 December 2020, remote, DACH	D
November, 2020	MariaDB / MySQL Stolperfallen - und wie komme ich da wieder raus? (PDF, 695 kib)	DOAG Konferenz und Expo, 19 November 2020, remote in Nürnberg, Germany	D
October, 2020	MariaDB / MySQL Stolperfallen und wie komme ich da wieder raus? (PDF, 768 kib)	GNU/LinuxDay in Vorarlberg, 10 October 2020, Dornbirn (remote), Austria	D
March, 2020	Migration Workshop PXC 5.5 to MariaDB 10.4 (PDF, 445 kib)	Customer Event, March 2020, Paris, France	E
December, 2019	MariaDB 10.4 New Features (PDF, 443 kib)	IT-Tage 2019, 9 - 12 December 2019, Frankfurt, Germany	D
November, 2019	MariaDB 10.4 New Features (PDF, 399 kib)	DOAG K + A 2019, 19 - 21 November 2019, Nürnberg, D	D
November, 2018	MySQL 8.0 New Features (PDF, 393 kib), MariaDB 10.3 - MySQL with PL/SQL (PDF, 518 kib)	DOAG K + A 2018, 20 - 22 November 2018, Nürnberg, D	D
May, 2018	MariaDB 10.2 - New Features (PDF, 1.6 Mib)	SLAC 2018, 7 - 9 May 2018, Berlin, D	D
March, 2018	MariaDB 10.2 - New Features (PDF, 683 kib)	Chemnitzer Linux-Tage 2018, 11 March 2018, Chemnitz, D	D
November, 2017	MySQL Query Tuning (PDF, 2.2 Mib), MySQL Replication and GTID (PDF, 293 kib), Wenn rwx für ugo zu ungenau ist - SELinux und AppArmor (PDF, 291 kib)	DOAG K + A 2017, 21 - 23 November 2017, Nürnberg, D	D
August, 2017	Wenn rwx für ugo zu ungenau ist - SELinux und AppArmor (PDF, 303 kib)	FrOSCon 2017, 19 - 20 August 2017, St.Augustin, D	D
July, 2017	Wenn rwx für ugo zu ungenau ist - SELinux und AppArmor (PDF, 280 kib)	Admin-Runde, 6 July 2017, Berlin, D	D
March, 2017	Katastrophenschutz durch Backup - auch privat (PDF, 1.1 Mib) Wenn rwx für ugo zu ungenau ist - SELinux und AppArmor (PDF, 265 kib)	Chemnitzer Linux-Tage 2017, 11 + 12 March 2017, Chemnitz, D	D
December, 2016	MySQL/MariaDB für nicht-MySQL DBAs (PDF, 491 kib)	IT-Tage 2016, 15 December 2016, Frankfurt, D	D
November, 2016	MySQL Security für Oracle DBAs (PDF, 480 kib), MySQL HA vs HA (PDF, 358 kib), Einführung in das Tuning von MySQL (PDF, 421 kib), MySQL 5.7: JSON und GIS (PDF, 1.9 Mib)	DOAG K + A 2016, 15 -17 November 2016, Nürnberg, D	D
September, 2016	MySQL Database Scalability (PDF, 300 kib)	Nextcloud Conference 2016, 16 - 22 September 2016, Berlin, D	E
August, 2016	ClickHouse Column Store (PDF, 943 kib), Vergleich von Replikation und Galera Cluster (PDF, 633 kib), MySQL-Auswahl auch gegen die Distribution (PDF, 407 kib), Der DB-Backup ist gemacht - was nun? (PDF, 419 kib), MySQL 5.7, JSON und GIS (PDF, 1.3 Mib), MySQL 5.7: Migration und Sicherheit (PDF, 1.6 Mib)	FrOSCON 2016, 20 - 21 August 2016, St. Augustin, D	D
July, 2016	MySQL 5.7 New Features (PDF, 980 kib)	DOAG Webinar, 8 July 2016, Webinar	D
June, 2016	MySQL für Oracle DBAs (PDF, 3.35 Mib), MySQL Beispiele aus der Praxis - Wie setzen Kunden MySQL ein? (PDF, 3.3 Mib)	SOUG DAY 2016, 23 June 2016, Baden-Dättwil, CH	D
June, 2016	Sicherheitsrelevante Änderungen (und einige andere) in MySQL 5.7 (PDF, 289 kib)	SLAC 2016, 15 - 17 June 2016, Berlin, D	D
May, 2016	MySQL für Oracle DBAs (PDF, 991 kib)	DOAG 2016 Datenbank, 10 May 2016, Düsseldorf, D	D
April, 2016	MySQL Servers Working as a Team - Replication or Galera Cluster (PDF, 631 kib)	Open Source Data Center Conference (OSDC), 27 April 2016, Berlin, D	E
March, 2016	RPM-Konventionen - ein moderner Turm von Babel (PDF, 384 kib)	Chemnitzer Linux-Tage 2016, 20 March 2016, Chemnitz, D	D
March, 2016	MySQL 5.7 New Features (PDF, 990 kib)	CeBIT 2016, 14 March 2016, Hannover, D	D
January, 2016	PERFORMANCE_SCHEMA and sys schema - What can we do with it? (PDF, 406 kib)	FOSDEM 2016, 29/30 January 2016, Brussels, B	E
January, 2016	MySQL für Oracle DBA's (PDF, 1.7 Mib), MySQL Backup/Recovery (PDF, 348 kib)	DOAG Regionaltreffen Freiburg/Südbaden, 26 January 2016, Freiburg, D	D
January, 2016	MySQL-Server im Teamwork - Replikation und Cluster (PDF, 631 kib)	Admin-Runde, 7 January 2016, Berlin, D	D
December, 2015	MySQL Beispiele aus der Praxis - Wie setzen Kunden MySQL ein? (PDF, 3.3 Mib)	DOAG Regionaltreffen Nürnberg/Franken, 17 December 2015, Nürnberg, D	D
November, 2015	MySQL Performance Tuningfür Oracle-DBA's (PDF, 680 kib), Der Datenbank-Backup ist gemacht - was nun ? (PDF, 415 kib), MySQL-Server im Teamwork - Replikation und Cluster (PDF, 456 kib), Weltweite Produktionsdatenverwaltung mit MySQL-Replikation (PDF, 625 kib)	DOAG Conference 2015, 17 - 19 November 2015, Nürnberg, D	D
September, 2015	MySQL-Server im Teamwork (PDF, 395 kib) MySQL Replikation und Galera Cluster im Überblick	DOAG Regionaltreffen München, 28 September 2015, Munich, D	D
June, 2015	Der Datenbank-Backup ist gemacht - was nun? (PDF, 743 kib) Recovery testen und dann als Produktiv-Kopie nutzen, MySQL sicher aufsetzen und betreiben (PDF, 863 kib)	SLAC 2015, 24 - 26 June 2015, Berlin, D	D
April, 2015	MySQL für Oracle DBA's (PDF, 890 kib)	DOAG Regionaltreffen Stuttgart, 1 April 2015, Stuttgart, D	D
March, 2015	MySQL Performance Tuning für Entwickler (PDF, 961 kib)	Chemnitzer Linux-Tage 2015, 21/22 March 2015, Chemnitz, D	D
March, 2015	MySQL für Oracle DBA's (PDF, 1006 kib)	SOUG GV 2015 + SIG, 19 March 2015, Baden-Dättwil, CH	D
March, 2015	MySQL Performance Tuning für Entwickler (PDF, 755 kib)	CeBIT 2015, 16 March 2015, Hannover, D	D
January, 2015	MySQL Replikation - Die Eier legende Wollmilchsau? (PDF, 1.2 Mib)	DOAG Webinar, 9 January 2015, Webinar	D
November, 2014	Konsolidieren von MySQL Landschaften (PDF, 438.0 kib), Backup und Point-in-Time-Recovery mit MySQL (PDF, 183.8 kib)	DOAG Conference 2014, 18 - 20 November 2014, Nürnberg, D	D
November, 2014	GTID Replication Implementation and Troubleshooting (PDF, 175.6 Mib)	Percona Live London 2014, November 3-4, 2014, London, UK.	E
September, 2014	High-availability with Galera Cluster for MySQL (PDF, 277 kib), Reading MySQL fingerprints (PDF, 161 kib), What is a Backup Good For? (PDF, 51 kib) & How to implement GTID Replication? (PDF, 99 kib)	FromDual Company Meeting 2014, September 10 - 12, Barcelona, E/Catalonia	E
May, 2014	MySQL always-up with Galera (PDF, 438 kib)	SLAC 2014, May 14 2014, Berlin, D	D
May, 2014	High-availability with Galera Cluster for MySQL (PDF, 313 kib)	LinuxTag 2014, May 10 2014, Berlin, D	D
March, 2014	Need for Speed: MySQL Indexing (PDF, 1.1 Mib)	CeBIT 2014, March 11 2014, Hannover, D	D
November, 2013	MySQL Backup (PDF, 315 kib), MySQL Cluster with Galera (PDF, 297 kib)	DOAG Conference 2013, November 10-12 2013, Nürnberg, D	D
November, 2013	Need for Speed: MySQL Indexing (PDF, 977 kib)	Percona Live London 2013, November 11-12, 2013, London, UK	E
October, 2013	Simple usage of Xtrabackup tool (PDF, 107.8 kib), Galera Cluster for MySQL (PDF, 325 kib)	FromDual annual company Meeting, October 9, 2013, Leoforos Vravronos	E
June, 2013	MySQL for Oracle DBAs (PDF, 331 kib)	MySQL für Oracle DBAs, June 14 2013, Online	D
June, 2013	MySQL HA and Security (PDF, 719 kib)	SLAC 2013, June 5 to 7 2013, Berlin	D
May, 2013	MySQL Security (PDF, 295 kib), MySQL High-Availability (PDF, 244 kib)	DOAG 2013 Datenbank, May 14 2013, Düsseldorf	D
March, 2013	MySQL Performance Tuning (PDF, 633 kib)	Frankfurter Datenbanktage 2013, March 13 to 15 2013, Oberems-Glashütten	D
February, 2012	Synchronous multi-Master Replication for MySQL (PDF, 134 kib), MySQL Replication: New Features in 5.5 and 5.6 (PDF, 490 kib)	DOAG SIG MySQL, February 27 2013, Munich	D
November, 2012	Data Warehouse (DWH) with MySQL (PDF, 1.3 Mib), MySQL New Features 5.6 (PDF, 474 kib), MySQL Replication (PDF, 451 kib)	DOAG Conference 2012, November 20-22 2012, Nürnberg	D
August, 2012	We build a Data Warehouse with MySQL (PDF, 1.3 Mib)	FrOSCon 2012, August 25-26 2012, St. Augustin	D
March, 2012	MySQL Configuration - the most important parameters (PDF, 727 kib), Indexing with MySQL (PDF, 520 kib)	DOAG SIG MySQL - Performance, March 13 2012, Wiesbaden	D
February, 2012	New Features in MySQL 5.6 (PDF, 459 kib), MySQL synchronous replication in practice with Galera (PDF, 176 kib)	FOSDEM 2012 at MySQL and Friends Devroom, February 5 2012, Brussels	E
December, 2011	HandlerSocket und ähnliche Architekturen, NoSQL für MySQL (PDF, 524 kib)	Internet Briefing Developer Conference 2011, December 8 2011, Zürich	D
December, 2011	MySQL Architectures for Oracle DBA's (PDF, 700 kib), Practical MySQL Tuning (PDF, 796 kib)	UK Oracle User Group (UKOUG) Conference 2011, December 5-7 2011, Birmingham	E
November, 2011	MySQL Performance Tuning (PDF, 811 kib), MySQL Replication for Beginners (PDF, 503 kib)	DOAG Conference 2011, November 15 - 17 2011, Nürnberg	D
October, 2011	Various MySQL High Availability (HA) Solutions (PDF, 234 kib)	Percona Live MySQL Conference, October 24 - 25 2011, London	E
August, 2011	MySQL Performance Tuning (PDF, 693 kib), MySQL Replication for Beginners (PDF, 380 kib)	FrOSCon 2011, August 20-21 2011, St. Augustin	D
June, 2011	DB-Programming in a different way: HandlerSocket and similar Technologies - NoSQL for MySQL (PDF, 448 kib)	DOAG SIG Development, June, 9^th 2011, Kassel	D
May, 2011	HA Architectures with MySQL (PDF, 228 kib)	DOAG SIG Database MySQL, May, 19^th 2011, Hanover	D
April, 2011	HandlerSocket und ähnliche Architekturen, NoSQL für MySQL (PDF, 897 kib)	Grazer Linuxtage 2011 April 9^th 2011, Graz	D
March, 2011	MySQL Replication - Scale-Out, Master-Master, Backup (PDF, 381 kib)	DOAG Regionaltreffen München March 23^rd 2011, Munich	D
February, 2011	HandlerSocket and similar architectures - NoSQL for MySQL (PDF, 880 kib)	FOSDEM 2011, Brussels	E
November, 2010	MySQL Architectures for Oracle DBA's (PDF, 479 kib)	DOAG Conference 2010, Nürnberg	D
August, 2010	MySQL Performance Monitoring with Zabbix (PDF, 2.1 Mib)	OpenSQL Camp EU 2010 / FrOSCon, St. Augustin	D
March, 2010	MySQL, where are you going? (PDF, 171 kib)	OpenExpo, Bern	E
March, 2010	Performance Tuning & Scale-Out mit MySQL (PDF, 339 kib)	Internet Briefing, Zürich	D
September, 2007	MySQL High-Availability and Scale-Out architectures (PDF, 547 kib)	/ch/open Workshop-Tage, Zürich	E
September, 2007	MySQL Performance Tuning (PDF, 834 kib)	/ch/open Workshop-Tage, Zürich	E
August, 2007	Locality of (P)reference (PDF, 467 kib)	MySQL PS EMEA Meeting, Budapest	E

If you want us to have a talk at your conference or event please let us know and we will get in contact with you asap!

MySQL Database Health Check

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sat, 07 Nov 2009 22:13:39 +0000

MySQL Active - Active Clustering

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 13 Mar 2007 12:06:00 +0000

It is possible to use an active - active shared-disk cluster in MySQL in some cases. For doing this you have to fulfill the following requirements:

Transaction performance

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 12 Mar 2007 12:06:00 +0000

Transaction performance relates among other things from I/O performance. This means hard disk performance.

SATA Flash Solid State Disk up to 160 Gbyte announced!

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 26 Feb 2007 09:33:00 +0000

The price for a 160 Gbyte disk will be around USD 15'000. This is still a bit expensive. But the access time is around 0.5 ms (both for reading and writing) which is around 10 times faster than a normal 15'000 rpm SCSI disk! The disk has NO cache because it is a cache itself (according to the supplier. Maybe this will change in the future). And the lifetime of a cell is > 5 mio writes. For the same performance one needs usually an array of around 10 disks. If your database is heavily write-I/O bound you should consider this solution.

Materialized Views (MV) with MySQL

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 06 Nov 2006 20:22:00 +0000

Materialised View (MV) is the pre-calculated (materialised) result of a query. Unlike a simple VIEW the result of a Materialised View is stored somewhere, generally in a table. Materialised Views are used when immediate response is needed and the query where the Materialised View bases on would take to long to produce a result. Materialised Views have to be refreshed once in a while. It depends on the requirements how often a Materialised View is refreshed and how actual its content is. Basically a Materialised View can be refreshed immediately or deferred, it can be refreshed fully or to a certain point in time. MySQL does not provide Materialised Views by itself. But it is easy to build Materialised Views yourself.

FromDual Performance Monitor 2.2.1 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 19 Feb 2026 18:18:00 +0100

FromDual has the pleasure to announce the release of the new version 2.2.1 of its popular Database Performance Monitor for MariaDB, Galera Cluster, MySQL and PostgreSQL fpmmm.

FromDual Performance Monitor for MariaDB 2.1.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sat, 09 Dec 2023 18:27:02 +0100

FromDual has the pleasure to announce the release of the new version 2.1.0 of its popular Database Performance Monitor for MariaDB and Galera Cluster fpmmm.

FromDual Performance Monitor for MariaDB 2.0.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 19 May 2022 20:09:49 +0200

FromDual has the pleasure to announce the release of the new version 2.0.0 of its popular Database Performance Monitor for MariaDB and Galera Cluster fpmmm.

Query performance comparison between MariaDB ColumnStore and other Storage Engines

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 03 Jun 2021 15:53:51 +0200

Storage Engines like InnoDB, Aria and MyISAM are Row Stores. They store rows one after the other in blocks or even directly in a single file (MyISAM). On the other hand a Column Store like MariaDB ColumnStore stores all the same attributes (columns) of the rows together in chunks.

Do not trust other peoples benchmarks!

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 06 Apr 2021 13:26:06 +0200

Because they do NOT reflect your problems.

One of our customers upgraded last month from MariaDB 10.2 to MariaDB 10.5. In the same change he also converted all his data warehouse (DWH)/BI tables from MyISAM to Aria. An all this, naturally, without testing. And it miserably failed! And then we were under heavy time pressure to make things working again…

FromDual Performance Monitor for MariaDB 1.2.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 12 Jun 2020 16:47:48 +0200

FromDual has the pleasure to announce the release of the new version 1.2.0 of its popular Database Performance Monitor for MariaDB and Galera Cluster fpmmm.

FromDual Performance Monitor for MariaDB and MySQL 1.1.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 24 Dec 2019 12:34:55 +0100

FromDual has the pleasure to announce the release of the new version 1.1.0 of its popular Database Performance Monitor for MariaDB, MySQL and Galera Cluster fpmmm.

FromDual Performance Monitor for MariaDB and MySQL 1.0.2 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 13 Mar 2019 20:58:18 +0100

FromDual has the pleasure to announce the release of the new version 1.0.2 of its popular Database Performance Monitor for MariaDB, MySQL, Galera Cluster and Percona Server fpmmm.

FromDual Performance Monitor for MySQL and MariaDB 1.0.1 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 10 Feb 2017 15:13:11 +0100

FromDual has the pleasure to announce the release of the new version 1.0.1 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

FromDual Performance Monitor for MySQL and MariaDB 1.0.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 03 Nov 2016 23:03:46 +0100

FromDual has the pleasure to announce the release of the new version 1.0.0 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

FromDual Performance Monitor for MySQL and MariaDB 0.10.6 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 03 Aug 2016 19:40:09 +0200

FromDual has the pleasure to announce the release of the new version 0.10.6 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

FromDual Performance Monitor for MySQL and MariaDB 0.10.5 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 06 Aug 2015 18:29:22 +0200

FromDual has the pleasure to announce the release of the new version 0.10.5 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

Performance on FromDual GmbH

dbstat for MariaDB after one month of productive use

Table of contents

Review

dbstat for MariaDB (and MySQL)

Table of contents

Comparing Optimizer Results

FromDual Performance Monitor for MariaDB/MySQL allows SNMP monitoring

SQL Query Tuning - Performance

Creating synthetic data sets for tuning SQL queries

innodb_deadlock_detect - Rather Hands off!

Do not underestimate performance impacts of swapping on NUMA database systems

To NULL, or not to NULL, that is the question!

Download Performance Monitor

FromDual Performance Monitor for MySQL and MariaDB including MaaS

InnoDB Flush Log at Transaction Commit

Nagios and Icinga plugins for MySQL 1.0.0 have been released

Impact of General Query Log on MySQL Performance

MySQL single query performance - the truth!

MySQL single query performance - the truth!

Deadlocks, indexing and Primary Key's

How to make the MySQL Performance Monitor work on Windows?

What can MySQL performance monitoring graphs tell you?

MaaS Key Request

MySQL JMeter Webshop Benchmark

How good is MySQL INSERT TRIGGER performance

MySQL Performance Monitor with DRBD monitoring capabilities

Impact of indices on MySQL

MySQL Performance Monitor

MariaDB and MySQL Benchmarking

Table of Contents

Database Benchmark

General Benchmarking Tools

CPU Benchmarking

Disk benchmarking

Presentations

MySQL Database Health Check

MySQL Active - Active Clustering

Transaction performance

SATA Flash Solid State Disk up to 160 Gbyte announced!

Materialized Views (MV) with MySQL

FromDual Performance Monitor 2.2.1 has been released

FromDual Performance Monitor for MariaDB 2.1.0 has been released

FromDual Performance Monitor for MariaDB 2.0.0 has been released

Query performance comparison between MariaDB ColumnStore and other Storage Engines

Do not trust other peoples benchmarks!

FromDual Performance Monitor for MariaDB 1.2.0 has been released

FromDual Performance Monitor for MariaDB and MySQL 1.1.0 has been released

FromDual Performance Monitor for MariaDB and MySQL 1.0.2 has been released

FromDual Performance Monitor for MySQL and MariaDB 1.0.1 has been released

FromDual Performance Monitor for MySQL and MariaDB 1.0.0 has been released

FromDual Performance Monitor for MySQL and MariaDB 0.10.6 has been released

FromDual Performance Monitor for MySQL and MariaDB 0.10.5 has been released