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What's the difference between emulation and simulation? [duplicate]
...lements the CPU, the sound chip, the video output, the controller signals, etc. The unmodified code from a NES castridge can be dumped and then the resulting image can be loaded into our emulator and played.
A simulator is a partial implementation of a device/platform, it does just enough for its o...
Vsphere 6 集群上 安装 oracle rac 遇到的共享磁盘故障 - 数据库(内核) - ...
...。但是 oracle 启动不了。
分析
经过3天的测试，找问题，依然没有完全解决问题， 从三天的测试结果来看 无非是 SCSI 总线， SCSI 共享总线，和 磁盘锁定，多点写入参数的组合
实验结果如下
SCSI 总线
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Android emulator and virtualbox cannot run at same time
... the Virtualbox emulator and unload its driver (vboxdrv) by running 'sudo /etc/init.d/vboxdrv stop'. Google suggests this "solution" on its Android Emulator page in the section about Linux.
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服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的处理方法混为一谈，以为优化系统内核参数就可以解决问题，其实是不恰当的，优化系统内核参 数解决TIME_WAIT可能很容易，但是应对CLOSE_WAIT的情况还是需要从程序本身出发。现在来分别说说这两种情况的处理方法：
1.服务...
How to measure time taken between lines of code in python?
...g about time.time() is that it is affected by time sunchronization ntpdate etc. I would say time.clock() would be the only reliable alternative because of this
– www.jensolsson.se
Jul 26 '16 at 6:58
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What are bitwise shift (bit-shift) operators and how do they work?
...een attempting to learn C in my spare time, and other languages (C#, Java, etc.) have the same concept (and often the same operators) ...
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Read user input inside a loop
...
read input
echo $input;
done
Unit test:
for line in $(cat /etc/passwd); do
read input
echo $input;
echo "[$line]"
done
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What is the difference between task and thread?
...it takes a long time to compute, or it might that it takes a long time to fetch. Only in the former case would you use a Thread to run a Task. (In .NET, threads are freaking expensive, so you generally want to avoid them as much as possible and really only use them if you want to run multiple heavy ...
Sleeping in a batch file
...sys.argv[1]))
It will allow sub-second pauses (for example, 1.5 sec, 0.1, etc.), should you have such a need. If you want to call it as sleep rather than sleep.py, then you can add the .PY extension to your PATHEXT environment variable. On Windows XP, you can edit it in:
My Computer → Properties...
What is the difference between a thread and a fiber?
...eralization and may not always hold true depending on OS/threading package/etc.). This means that for threads, data integrity is a big issue because one thread may be stopped in the middle of updating a chunk of data, leaving the integrity of the data in a bad or incomplete state. This also means th...