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How to recognize USB devices in Virtualbox running on a Linux host? [closed]
I tried to use USB devices without any success. It seems they are not detected by Virtualbox itself, since if I select the guest from the Virtualbox home (I'm using a Windows XP 3 guest), choose Settings -> USB -> Add filter from device, no devices is listed, even if an USB pen is attached and recog...
How can I find where Python is installed on Windows?
I want to find out my Python installation path on Windows. For example:
19 Answers
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Context switches much slower in new linux kernels
...t /sys/devices/system/cpu/cpuidle/current_driver
If you want your modern Linux OS to have the lowest context switch latency possible, add the following kernel boot parameters to disable all of these power saving features:
On Ubuntu 12.04, you can do this by adding them to the GRUB_CMDLINE_LINUX_D...
How to install pip for Python 3 on Mac OS X?
OS X (Mavericks) has Python 2.7 stock installed. But I do all my own personal Python stuff with 3.3. I just flushed my 3.3.2 install and installed the new 3.3.3. So I need to install pyserial again. I can do it the way I've done it before, which is:
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How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
I've been digging through some parts of the Linux kernel, and found calls like this:
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Get current time in seconds since the Epoch on Linux, Bash
...xt Fri'
Better yet, take some time to read the man page
http://man7.org/linux/man-pages/man1/date.1.html
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Executing multi-line statements in the one-line command-line?
I'm using Python with -c to execute a one-liner loop, i.e.:
17 Answers
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How do I check if a string is unicode or ascii?
What do I have to do in Python to figure out which encoding a string has?
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What is the difference between sigaction and signal?
...gaction() are OK in multi-threaded applications.
Cornstalks observes:
The Linux man page for signal() says:
The effects of signal() in a multi-threaded process are unspecified.
Thus, I think sigaction() is the only that can be used safely in a multi-threaded process.
That's interesting. The L...
What are the correct link options to use std::thread in GCC under linux?
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I think on Linux pthread is used to implement std::thread so you need to specify the -pthread compiler option.
As this is a linking option, this compiler option need to be AFTER the source files:
$ g++ -std=c++0x test.cpp -pthread
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