Performance

Performance v Scalability – For Employers

In a recent discussion with a fellow peer reviewing a job description he was applying for, we got into a discussion on the specifics of a Performance Engineer verses a Scalability Engineer.

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Announcing the MySQL Plugin for New Relic

Many application developers would know of New Relic . A SaaS performance and monitoring tool targeted towards your web application monitoring including PHP, Ruby, Java, .Net, Python and Node. With the release today (June 19, 2013) of the New Relic Platform , custom monitoring of data stores including MySQL are now possible.

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Reasons to use MySQL 5.5 Presentation

I recently gave a presentation at the New York Effective MySQL Meetup on the new features of, and some of the compelling reasons to upgrade to MySQL 5.5. There are also a number of new MySQL variables that can have a dramatic effect on performance in a highly transactional environment, innodb_buffer_pool_instances and innodb_purge_threads are just two to consider.

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Extra: Using Index

Many people consider this information in the MySQL Query Execution Plan (QEP) to indicate that the referenced table is using an index. It actually means that ONLY the index is used.

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Part 2 – Simple lessons in improving scalability

Given the popular response from my first lesson in improving scalability where I detailed simple ways to eliminate unnecessary SQL, let me share another common bottleneck with MySQL scalability that can be instantly overcome.

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Simple lessons in improving scalability

It can be very easy to improve scalability with a MySQL server by a few simple rules. Here is one of them. “The most efficient way to improve an SQL statement is to eliminate it”

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Five reasons to upgrade to MySQL 5.5

Updated Nov 2011. Check out my Reasons to use MySQL 5.5 Presentation for more in-depth information about installing/configuring and using MySQL 5.5 I have been looking forward to the general availability (GA) release of MySQL 5.

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MySQL HandlerSocket under Ubuntu

Starting with the great work of Yoshinori-san Using MySQL as a NoSQL – A story for exceeding 750,000 qps on a commodity server and Golan Zakai who posted Installing Dena’s HandlerSocket NoSQL plugin for MySQL on Centos I configured and tested HandlerSocket under Ubuntu 10.

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Improving MySQL Insert thoughput

There are three simple practices that can improve general INSERT throughput. Each requires consideration on how the data is collected and what is acceptable data loss in a disaster. General inserting of rows can be performed as single INSERT’s for example.

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Successful MySQL Scalability Presentation

Last night I was the invited guest at the SF MySQL Meetup . In my presentation “Successful MySQL Scalability” I talked about a set of principles to ensure appropriate system architecture, data availability and best practices to build an ideal solution for your business.

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Speaking at Surge Scalability 2010 – Baltimore, MD

I will be joining a great list of quality speakers including John Allspaw, Theo Schlossnagle, Rasmus Lerdorf and Tom Cook at Surge 2010 in Baltimore, Maryland on Thu 30 Sep, and Fri Oct 1st 2010.

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Optimizing SQL Performance – The Art of Elimination

The most efficient performance optimization of a SQL statement is to eliminate it. Cary Millsap’s recent Kaleidoscope presentation again highlighted that improving performance is function of code path. Removing code will improve performance.

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Timing your SQL queries

When working interactively with the MySQL client, you receive feedback of the time the query took to complete to a granularity of 10 ms. Enabling profiling is a simple way to get more a more accurate timing of running queries.

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Why is my database slow?

Not part of my Don’t Assume series, but when a client states “Why is my database slow””, you need to determine if indeed the database is slow. Some simple tools come to the rescue here, one is Firebug .

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