August 2011
Intermediate to advanced
552 pages
23h 48m
English
Content preview from Advanced Mac OS X Programming: The Big Nerd Ranch GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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21Operations
As you saw in Chapter 10: Performance Tuning, multiple processors in a single computer are a fact of life today. CPU manufacturers cannot scale processor speed as they have in the past, so they are putting their transistors into more CPU cores. Getting the best performance out of today’s systems requires parallel programming, which usually means using threads. Threaded programming is difficult and error prone, making it harder and more expensive to take full advantage of the processing power of today’s systems
Mac OS X 10.5 introduced some classes that simplify some kinds of parallel programming. The NSOperation class represents a unit of parallelizable work, and the NSOperationQueue class takes NSOperations and executes them. Even ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.