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What killed my process and why?
...r get invoked?
Say you have 512 RAM + 1GB Swap memory. So in theory, your CPU has access to total of 1.5GB of virtual memory.
Now, for some time everything is running fine within 1.5GB of total memory. But all of sudden (or gradually) your system has started consuming more and more memory and it r...
Optimal number of threads per core
Let's say I have a 4-core CPU, and I want to run some process in the minimum amount of time. The process is ideally parallelizable, so I can run chunks of it on an infinite number of threads and each thread takes the same amount of time.
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Android emulator and virtualbox cannot run at same time
... @rudolfbyker, what the answer says is that emulators that run with CPU/ABI x86/x86_64 is a lot faster, but uses the same KVM (Kernel-based Virtual Machine) as VitualBox. Creating an emulator with another CPU, like arm64, will not conflict with VirtualBox, but emulator is a lot slower.
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Do sealed classes really offer performance Benefits?
...iler implementation and execution environment.
Details
Many of modern CPUs use long pipeline structure to increase performance. Because CPU is incredibly faster than memory, CPU has to prefetch code from memory to accelerate pipeline. If the code is not ready at proper time, the pipelines will ...
SQL Server Management Studio, how to get execution time down to milliseconds
...hing like this in your Messages window:
SQL Server Execution Times: CPU time = 6 ms, elapsed time = 6 ms.
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SQL SELECT speed int vs varchar
...... obviously non-float are smaller than strings and floats, and thus more CPU friendly in assembly.
String to string comparison in all languages is slower than something that can be compared in 1 instruction by the CPU. Even comparing 8 byte (64bit) on a 32bit CPU is still faster than a VARCHAR(2)...
Get program execution time in the shell
...] PIPELINE
Execute PIPELINE and print a summary of the real time, user CPU time,
and system CPU time spent executing PIPELINE when it terminates.
The return status is the return status of PIPELINE. The `-p' option
prints the timing summary in a slightly different format. This uses
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Scanner vs. StringTokenizer vs. String.Split
... faster than any of two viz. StringTokenizer or String.split.
But the CPU utilization for all the three is nearly the same. So we also need a method which is less CPU intensive, which I am still not able to find.
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MFC中主窗口和子窗口的菜单问题，如何统一显示MDI主窗体菜单？ - C/C++ - ...
MFC中主窗口和子窗口的菜单问题，如何统一显示MDI主窗体菜单？在 MDI 应用程序中，每一个子窗体的菜单都显示在 MDI 窗体上，而不是在子窗体本身。当子窗体有焦点时，该子窗体的菜单（如果有的话）就...
在 MDI 应用程序...
MFC采用双缓存解决闪屏问题(使用了双缓存还是闪屏的) - C/C++ - 清泛网 - ...
MFC采用双缓存解决闪屏问题(使用了双缓存还是闪屏的)1.为什么出现闪屏？xxxxx2.没有效果？BEGIN_MESSAGE_MAP(Cxxxx, CStatic) ON_WM_ERASEBKGND()END_MESSAGE_MAP()BOOL Cxxxx::OnErase...1.为什么出现闪屏？
xxxxx
2.没有效果？
BEGIN_MESSAGE_MAP(Cxxxx, CSt...