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How do you create an asynchronous method in C#?
...Seconds(1));
}
return DateTime.Now;
}
If your async method is doing CPU work, you should use Task.Run:
private static async Task<DateTime> CountToAsync(int num = 10)
{
await Task.Run(() => ...);
return DateTime.Now;
}
You may find my async/await intro helpful.
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Position of least significant bit that is set
...worse code in the other. I think you'd either optimize this for a specific CPU or leave it as it is and let the compiler to choose what it thinks it's better.
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...intrinsics like ARM GCC's __clz (no header needed), or x86's _lzcnt_u32 on CPUs that support the lzcnt instruction. (Beware that lzcnt decodes as bsr on older CPUs instead of faulting, which gives 31-lzcnt for non-zero inputs.)
There's unfortunately no way to portably take advantage of the various...
How to set a Timer in Java?
..., since the while loop constantly runs and checks for stuff... bad for the cpu and bad for the battery life time.
– Infinite
Jul 2 '13 at 18:49
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What is the memory consumption of an object in Java?
... memory alignment done by a particular JVM implementation for a particular CPU type. It looks like a Long is 8 bytes of Object overhead, plus 8 bytes more for the actual long value. In contrast, Integer had an unused 4-byte hole, most likely because the JVM I use forces object alignment on an 8-byte...
Why start an ArrayList with an initial capacity?
... tell ArrayList to allocate a larger storage to begin with as to not waste CPU cycles when it tries to allocate more space for the next item. Thus to allocate some space at the beginning is more effiecient.
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The provider is not compatible with the version of Oracle client
...ad no issue since moving over to it / you can set your projects back to AnyCPU etc and it works great :)
– Tod Thomson
Nov 28 '13 at 5:58
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Array.Copy vs Buffer.BlockCopy
...ood performance is almost surely due to locality of reference exploited by CPU L1/L2/L3 memory caching in conjunction with no method call overhead.
For double buffers on 32-bit machines only: The explicit loop copy routine is better than both alternatives for all buffer sizes tested up to 100k. Th...
What is the difference between _tmain() and main() in C++?
...ed as the pair of bytes \0 followed by the ASCII value.
And since the x86 CPU is little-endian, the order of these bytes are swapped, so that the ASCII value comes first, then followed by a null byte.
And in a char string, how is the string usually terminated? Yep, by a null byte. So your program ...
Are there any downsides to passing structs by value in C, rather than passing a pointer?
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Unless your struct is tiny or your CPU has many registers (and Intel CPUs have not), the data ends up on the stack and that is also memory and as fast/slow as any other memory. A pointer on the other hand is always small and just a pointer and the pointer itse...