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What's the difference between hard and soft floating point numbers?
...s in integer registers. You can still compile your code with a -mfpu=vfp, etc but you should use -mfloat-abi=softfp so that if the libc needs a float it is passed in a way the library understands.
The Linux kernel can support emulation of the VFP instructions. Obviously, you are better off to com...
How to calculate a time difference in C++
...
clock() returns the CPU time consumed by the program. So if the program is run in parallel the time returned by the function would be the accumulated of the time spent on all CPUs, rather than the time elapsed cplusplus.com/reference/ctime/cloc...
Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...on is often to look at the flags register to check for overflow, sign bit, etc. If there's another add after that, it's very difficult to tell whether it's safe to begin execution of the 2nd add before the outcome of the 1st add is known.
On a RISC architecture, the add instruction would specify th...
Are Java static calls more or less expensive than non-static calls?
...( duration, test );
printStream.printf( "%15s | %10d\n", test.getClass().getSimpleName(), iterations );
}
}
long runTest( int duration, Test test ) throws Exception
{
test.terminate = false;
test.count = 0;
Thread thread = new Thread( test );
...
How to run functions in parallel?
...same time" and thinking you can is just plain wrong. Depending on how many cpus you have, the load of the machine, the timing of many things happening on the computer will all have an influence on the time the threads/process start. Also, since the processes are started right after creation, the ove...
SSH to Vagrant box in Windows?
...: 127.0.0.1
Port: 2222
When you connect(Terminal Screen):
User: vagrant
Passwd: vagrant
Before you try to connect, verify your VM using cmd.exe:
vagrant status
If it is down use:
vagrant up
share
|
...
In Windows cmd, how do I prompt for user input and use the result in another command?
...ping? Like if you wanted to do a: set /p id=Enter ID:\r\n set /p pw=Enter Passwd: and didn't want the password text to show in the window, let alone, show in the "DosKey" command buffer? I've tried several different ways, and haven't been able to find a way to do this, outside of writing a little ...
淘宝大秒系统设计详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...系统，文章主要介绍大秒系统以及这种典型读数据的热点问题的解决思路和实践经验。一些数据
大家还记得2013年的小米秒杀吗？三款小米手机各11万台开卖，走的都是大秒系统，3分钟后成为双十一第一家也是最快破亿的旗舰店...
CPU acceleration status: UT feature disabled in BIOS/UEFI - App Invent...
安卓模拟器启动报错：
CPU acceleration status: UT feature disabled in BIOS/UEFI
86_64仿真当前需要硬件加速CPU加速状态：在BIOS/UEFI中禁用了UT功能
需要在主板中开启硬件加速功能，具体如何开启待整理，或者可以直接问问 deepseek...
How do function pointers in C work?
...multiple versions of some functions to take advantage of SSE, popcnt, AVX, etc. At startup, set your function pointers to the best version of each function for the current CPU. In your other code, just call through the function pointer instead of having conditional branches on the CPU features eve...