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Ternary operator is twice as slow as an if-else block?
...itional with 1000 iterations: 47710ms
My system details:
x64 i7-2720QM CPU @2.20GHz
64-bit Windows 8
.NET 4.5
So unlike before, I think you are seeing a real difference - and it's all to do with the x86 JIT. I wouldn't like to say exactly what is causing the difference - I may update the post ...
Android: AsyncTask vs Service
...g: Android will not keep your app alive just because your app is using the CPU. It has to have some way of knowing that your app still has work to do; that's why Services are registered with the OS, and AsyncTasks aren't.
Multithreading
AsyncTasks are all about creating a background thread on whic...
how to remove the dotted line around the clicked a element in html
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@cpu_meltdown Try input:focus{outline: none}
– Sowmya
Nov 10 '16 at 10:45
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Creating an object: with or without `new` [duplicate]
...ng to some specific implementation (say, a computer with an x86-compatible CPU) is needlessly restrictive and leads to a lack of rigour/provability within the scope of the rules defined by the C++ standard. The C++ standard gives rules about storage duration, not about some hypothetical data structu...
Why is an int in OCaml only 31 bits?
...for a simple integer.
Also, you cannot pass such an integer object to the CPU to perform fast integer arithmetic. If you want to add two integers, you really only have two pointers, which point to the beginning of the object headers of the two integer objects you want to add. So, you first need to ...
JavaScript sleep/wait before continuing [duplicate]
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this locks the browser, is cpu intensive, causes execution interruption on mobile devices if paused time is too long
– Paolo
Jan 26 '14 at 11:24
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Windows启动过程 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...依赖这些驱动，下表列出了初始的系统驱:
然后再设置CPU的寄存器的值，等等。这些任务完成后，ntldr把系统控制权交给进程ntoskrnl.exe (NT OS Kernel),它的使命就完成了。
NTOSKRNL是主要负责启动以下OS服务（此时你能看到的Windows XP...
tinygrad：不到1000行代码的深度学习框架，天才黑客开源GitHub 2.3k+ stars...
...ad.tensor import Tensor(Tensor.ones(4,4).cuda() + Tensor.ones(4,4).cuda()).cpu()
其实我们当然不会用这样的框架来真正训练网络，但是1000行的代码量我们倒是可以稍微啃一下，对理解深度学习框架内部原理还是非常有帮助的，希望感兴趣的小伙...
How do I check which version of NumPy I'm using?
...t 13 2017, 12:02:49)
[GCC 7.2.0]
Platform: linux-x86_64
AMD/Intel CPU? True
VML available? False
Number of threads used by default: 8 (out of 48 detected cores)
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When is assembly faster than C?
... uint64_t for 32x32 => 64-bit multiplies fails to optimize on a 64-bit CPU, so you need intrinsics or __int128 for efficient code on 64-bit systems.
_umul128 on Windows 32 bits: MSVC doesn't always do a good job when multiplying 32-bit integers cast to 64, so intrinsics helped a lot.
C does...