August 2014
Intermediate to advanced
120 pages
2h 45m
English
Content preview from Mastering Clojure MacrosBecome 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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Benchmarking Your Code
No discussion about performance would be complete (or to my way of thinking, even worth beginning) without that famous quote from Donald Knuth [Knu74]:
“We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%.”
If we apply our time-limited efforts randomly around the codebase, it may not improve any bottlenecks that exist. My experience tends to align with Knuth’s advice here: it saves us time, and a lot of wasted effort, to first find problem areas in our programs. If our program doesn’t need to be fast, any performance work is unnecessary, or at least, premature. If our web application spends the ...
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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.