Drop millions of allocations by using a linked list

Re:Drop millions of allocations by using a linked list by johnlinvc on Friday March 13, 2015 @05:39AM (#9196301)

"The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet." — Michael A. Jackson

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Re:Drop millions of allocations by using a linked list by maddening on Friday March 13, 2015 @05:49AM (#9196323)

I prefer full quote from Knuth:

    "Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. 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%."

I have the problems with many happy-coders that they only remember the part about about not optimizing early and often forget that part when you should measure performance, find bottlenecks and get rid of them.

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Re:Drop millions of allocations by using a linked list by eddd on Friday March 13, 2015 @06:39AM (#9196444)

ok, now i have to rephrase my statement: 1. Make it work 2. Measure 3. Optimize

What people often miss is the measuring part.

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