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Unix+clones

Postfix performance tuning

Post date: May 21, 2005, 11:05 Category: Optimizing Views: 3451 Comments
Tutorial quote: Postfix is fast out of the box, but like other packages, you can usually tune it to work even faster. Furthermore, there are situations where Postfix may not perform as well as you expected, whether because of hardware or software limitations on the server system or other adverse conditions, such as a big influx of spam or undeliverable mail. This article shows you how to find and analyze the most common performance problems.
OpenSUSE

Network Performance Fine Tuning in openSUSE & SUSE

Post date: October 8, 2008, 23:10 Category: Network Views: 4267 Comments
Tutorial quote: openSUSE and SUSE Linux sets default values for some of the network related Kernel parameters. With Kernel 2.6 (default in recent releases of openSUSE & SuSE Linux), there are some fine tuning you can do to improve Network performance and get that extra out of your system.
Unix+clones

High Performance MySQL

Post date: December 1, 2006, 04:12 Category: Optimizing Views: 5830 Comments
Tutorial quote: The operating system your MySQL server runs on and the server's configuration can be just as important to your server's performance as the indexes, schema, or queries themselves. In this chapter, we will help you understand how to tune your server to improve performance, as opposed to tuning schema or queries. We'll be looking at changes to your hardware, operating system, and MySQL configuration to see what effects they have on overall performance.

We assume that you've already made efforts to boost the performance of your queries. If you haven't done that already, stop now and read Chapter 4 and Chapter 5 to get a handle on optimizing your queries and your application code. Only then should you worry about server settings. Hardware is often not the solution to MySQL performance problems. Poorly optimized queries can slow you down far more than not having the latest CPU or SCSI disk. To put this in perspective, one of the MySQL AB trainers even says that changing hardware might, in the best cases, give you a 10-fold performance increase. But tuning queries (and schemas) can often give you 1000-fold performance increase. Seriously.

Some topics covered in this chapter are platform-specific. The authors' knowledge of the various platforms on which MySQL runs is limited. In many cases, you'll need to consult your local documentation for various operating system tools and specifics.

We start with an overview of the factors that limit performance and then look more in depth at RAID, hardware, and operating system issues. The chapter finishes with a discussion of techniques you can use to locate, identify, and fix bottlenecks.
Unix+clones

Performance Tuning with GCC, Part 1

Post date: November 26, 2005, 01:11 Category: Optimizing Views: 3671 Comments
Tutorial quote: This article provides an overview of the different flags controlling optimization in GCC and some hints on how to use them to get the most performance out of your application. In particular, it discusses some of the new optimization features of the GCC 4.x series included in Fedora™ Core 4 and the upcoming Red Hat® Enterprise Linux® versions.
Linux

Profiling in Linux Performance Tuning

Post date: December 18, 2005, 21:12 Category: Optimizing Views: 3457 Comments
Tutorial quote: This chapter covers several methods to measure execution time and real-time performance. The methods give different types of granularity, from the program’s complete execution time to how long each function in the program takes.
RedHat

Tips & tricks: Performance tuning

Post date: November 26, 2005, 00:11 Category: Optimizing Views: 8668 Comments
Tutorial quote: Advanced tips on optimizing your Red Hat server.
Unix+clones

Considerations for the system architect: Performance

Post date: April 20, 2005, 10:04 Category: Miscellaneous Views: 2886 Comments
Tutorial quote: For many developers and engineers, performance is often an afterthought. But when a product functions as designed and has proven stability and the right feature mix, success in the marketplace often depends upon performance. Architectural decisions define the ultimate feasible performance of any product. In this article, learn how performance-monitoring technology initially developed for mainframes can help you improve your own code's performance.
RedHat

Tuning and Optimizing Red Hat Enterprise Linux for Oracle 9i and 10g Databases

Post date: December 19, 2007, 06:12 Category: Optimizing Views: 9633 Comments
Tutorial quote: This article is a step by step guide for tuning and optimizing Red Hat Enterprise Linux on x86 and x86-64 platforms running Oracle 9i (32bit/64bit) and Oracle 10g (32bit/64bit) standalone and RAC databases. This guide covers Red Hat Enterprise Linux Advanced Server 3 and 4 and the older version 2.1.
Linux

MySQLTuner - Performance Tunning MySQL on Linux

Post date: January 24, 2010, 06:01 Category: Optimizing Views: 4328 Comments
Tutorial quote: MySQLTuner is a script written in Perl that allows you to review a MySQL installation quickly and make adjustments to increase performance and stability. The current configuration variables and status data is retrieved and presented in a brief format along with some basic performance suggestions.
OSX

Optimizing Mac OS X performance

Post date: January 18, 2006, 16:01 Category: Optimizing Views: 7087 Comments
Tutorial quote: This FAQ provides recommendations for optimizing Mac® OS X performance. Additionally, it provides advice and links to advice for troubleshooting certain Mac OS X performance problems.
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