Replication is a long-awaited feature that allows the creating of reliable high-performance database replicas without user-defined triggers and with full DDL support. This talk presents the replication subsystem architecture, possible replication modes, their impact on performance and available tuning options. We'll demonstrate how to set up a simple standby configuration and use it in practice.
This talk done at Firebird Conference 2019 describes the current state of the v4 development and reviews its key features (new data types, Batch API, timezones). Dimitry Yemanov spoke about the future of Firebird development, including the updated release plan and expected post-v4 features. Review of upcoming features for Firebird 5
Understanding High Performance via Michael Abrash's Graphics Programming Black Book
"Before we can create high-performance code, we must understand what high performance is. The objective (not always attained) in creating high-performance software is to make the software able to carry out its appointed tasks so rapidly that it responds instantaneously, as far as the user is concerned. In other words, high-performance code should ideally run so fast that any further improvement in the code would be pointless.
Notice that the above definition most emphatically does not say anything about making the software as fast as possible. It also does not say anything about using assembly language, or an optimizing compiler, or, for that matter, a compiler at all. It also doesn't say anything about how the code was designed and written. What it does say is that high-performance code shouldn't get in the user's way—and that's all.
That's an important distinction, because all too many programmers think that assembly language, or the right compiler, or a particular high-level language, or a certain design approach is the answer to creating high-performance code. They're not, any more than choosing a certain set of tools is the key to building a house. You do indeed need tools to build a house, but any of many sets of tools will do. You also need a blueprint, an understanding of everything that goes into a house, and the ability to use the tools.
Likewise, high-performance programming requires a clear understanding of the purpose of the software being built, an overall program design, algorithms for implementing particular tasks, an understanding of what the computer can do and of what all relevant software is doing—and solid programming skills, preferably using an optimizing compiler or assembly language. The optimization at the end is just the finishing touch, however."
