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In which order should floats be added to get the most precise result?
...bly avoid using -ffast-math but that in many applications where you may be CPU-bound but don't care about precise numerical computations, (game programming for instance), -ffast-math is reasonable to use. Thus, I'd like to ammend my strongly worded "banned" comment.
– Chris A....
How slow are .NET exceptions?
...are implemented as Win32 SEH exceptions, so some will even pass the ring 0 CPU boundary!
Obviously in the real world, you'll be doing a lot of other work so the odd exception will not be noticed at all, but if you use them for program flow expect your app to be hammered. This is another example of ...
How do Trigonometric functions work?
...curacy and performance are going to be problematic. By performance I mean CPU execution time.
– Jason S
Jul 18 '12 at 16:41
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What are the dangers when creating a thread with a stack size of 50x the default?
...d the local variables in a method. Minus the ones that can be stored in a CPU register, you can ignore that since there are so few of them.
Increasing the stack size doesn't accomplish anything, you'll just reserve a bunch of address space that will never be used. There is no mechanism that can e...
Is R's apply family more than syntactic sugar?
... It does vary with OS and R version... and in an absolute sense CPU. I just ran with 2.15.2 on Mac and got sapply 50% slower than for and lapply twice as fast.
– John
Jan 13 '13 at 0:08
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What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
...t unless it's stored locally on an SSD, I'd assume getting the file to the CPU to process will be slower than just processing a JPG, especially on a properly-written JPG decoder that uses hardware instructions that have been available for a decade or two.
– Camilo Martin
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Best practices for exception management in Java or C# [closed]
... of code to get by without it would "resolve" it), or whether it means the CPU is on fire and the system should do a "safety shutdown" at first opportunity. It sounds like Mr. Hejlsberg is suggesting that code should assume the former; perhaps that's the best possible strategy given the existing ex...
Java 8: performance of Streams vs Collections
... I think your test is fair, you just need a machine has more cpu cores.
– Mellon
Nov 19 '15 at 19:34
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Proper practice for subclassing UIView?
...s. Personally, I avoid multi-pass layouts when possible because they burn CPU cycles and make everything a headache. Additionally, I put constraint code in the initializers themselves as I rarely invalidate them.
import UIKit
class MyView: UIView {
//------------------------------------------...
Python Process Pool non-daemonic?
...getting memory leak with this try using "with closing(MyPool(processes=num_cpu)) as pool:" to dispose of the pool properly
– Chris Lucian
Mar 15 '15 at 7:00
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