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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Major Causes of Performance Problems
Performance problems typically come from one or more of 5 major areas: algorithms, memory, CPU, disk, and graphics. Granted, that is pretty much everything your program interacts with in the machine. You can use performance tools to look at each aspect of computer performance in isolation to get a better handle on your overall performance issues, even if one problem is causing problems in several categories.
Memory
Even though modern machines have vast amounts of memory, RAM is still a scarce resource. Once your app or other apps on the system fill up memory, Mac OS X starts sending memory pages to disk, destroying performance. On iOS devices, your program may be killed outright in low-memory situations. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.