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Different floating point result with optimization enabled - compiler bug?
... Different optimization levels affect how often floating point values from CPU get saved into memory and thus rounded from 80-bit precision to 64-bit precision.
Use the -ffloat-store gcc option to get the same floating point results with different optimization levels.
Alternatively, use the long d...
Running a cron every 30 seconds
... schedule the next run to coincide with other events, it needs to wake the CPU less often. The 1ms in the example above is not ideal - I usually set accuracy to 1 (1 second) in my sub-minute scheduled jobs, but that would mean that if you look at the log showing the "Hello World" messages, you'd see...
JavaScript OOP in NodeJS: how?
...reate 100 function identities, your server would quickly waste most of its CPU on GC :P), even though you will not use them for anything. The language doesn't have enough expressive power to optimize this away currently.
– Esailija
Aug 12 '13 at 13:45
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AI2 Media Notification
...vely operated, this function gradually switches everything down (display, CPU, WiFi, etc.). In order to bypass Doze mode effectively, it is necessary to create a foreground service. A lot of useful background information can be found in the ZEBRA Developer Portal: Keeping your Android application...
Is < faster than
...on. This was relevant in the era of sub-megahertz processor speed and 1:1 CPU-to-memory speed ratios, but it is almost totally irrelevant today.
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Pass correct “this” context to setTimeout callback?
...or this case, for map(), for forEach(), etc., etc., using less code, fewer CPU cycles, and less memory. ***See: Misha Reyzlin's answer.
– HoldOffHunger
Oct 20 '17 at 17:06
ad...
The purpose of Model View Projection Matrix
...iform to the shader program, having set it up for the current model on the CPU.
– Tommy
Apr 6 '11 at 10:50
Hi Tommy, c...
Why is lazy evaluation useful?
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Lazy evaluation related to CPU the same way as garbage collection related to RAM. GC allows you to pretend that you have unlimited amount of memory and thus request as many objects in memory as you need. Runtime will automatically reclaim unusable obje...
MemoryCache does not obey memory limits in configuration
...blem, but it looks as if the thread of the MemoryCache does not get enough CPU time for cleaning, while many new elements are added.
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Efficiency of premature return in a function
... decide what is better a priori unless he has an intimate knowledge of the CPU architecture.
– fortran
Oct 25 '11 at 9:26
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