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How can I propagate exceptions between threads?
...d). Within the body of the function we spawn multiple worker threads to do CPU intensive work, wait for all threads to finish, then return the result on the main thread.
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C# List of objects, how do I get the sum of a property
...recommend you change it to: "Here is how you could do it" and "Here is the cpu performance of each option". Also in principle if you describe your testing methodology you need-not show us the code.
– Meirion Hughes
Feb 19 '16 at 10:08
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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
32
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Verify if a point is Land or Water in Google Maps
...and it is working not too bad... you can improve the test if you have more cpu to waste by adding pixels.
function isItWatter($lat,$lng) {
$GMAPStaticUrl = "https://maps.googleapis.com/maps/api/staticmap?center=".$lat.",".$lng."&size=40x40&maptype=roadmap&sensor=false&zoom=12&a...
OnNotify函数 ON_NOTIFY消息总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...个窗口发的(当然可以用参数进行约定)。
如何解决这个问题？
有几种思路：1.重写ON_MESSAGE宏，增加ID的限制；2.模拟按钮单击消息；3.自定义WM_NOTIFY消息。基于这些思路都不能修改MFC底层的代码。
用调试的方式查看MFC的实现代...
Disable Interpolation when Scaling a
...n Webkit based) is forced to allow disabling antialiasing. Antialiasing is cpu-intensive operation and antialiasing 6656 x 4096 px image would be too slow, but fortunately unnecessary in such display.
– Timo Kähkönen
Oct 10 '12 at 15:45
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iTextSharp - Sending in-memory pdf in an email attachment
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It's not. It's a waste of memory and CPU time because the bytes have to be copied from one to the other.
– Serguei Fedorov
Jun 4 '15 at 21:09
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Does pandas iterrows have performance issues?
... via SIMD instructions. Some parts of Numpy enable SIMD, depending on your CPU and installation process. The benefits to parallelism won't be as dramatic as the static typing and better caching, but they're still a solid win.
Moral of the story: use the vector operations in Numpy and pandas. They ...
Suppress warning CS1998: This async method lacks 'await'
...1709, Fall Creators Update] (10.0.16299.192)
Processor=Intel Core i5-2500K CPU 3.30GHz (Sandy Bridge), ProcessorCount=4
Frequency=3233537 Hz, Resolution=309.2589 ns, Timer=TSC
.NET Core SDK=2.1.2
[Host] : .NET Core 2.0.3 (Framework 4.6.25815.02), 64bit RyuJIT
Clr : .NET Framework 4.7 (CLR 4.0...
Why main does not return 0 here?
...return value from a function is normally stored in the eax register of the cpu, so the statement "return 4;" would usually compile to
mov eax, 4;
ret;
and return x (depending on your compiler) would be something like:
mov eax, [ebp + 4];
ret;
if you don't specify a return value then the compil...