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CPU Privilege Rings: Why rings 1 and 2 aren't used?
...the modern protection model) only has a concept of privileged (ring 0,1,2) and unprivileged, the benefit to rings 1 and 2 were diminished greatly.
The intent by Intel in having rings 1 and 2 is for the OS to put device drivers at that level, so they are privileged, but somewhat separated from the r...
Activity transition in Android
How can I define the transition between two activities for Android 1.5 and later?
I would like an activity to fade in.
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Command line to remove an environment variable from the OS level configuration
Windows has the setx command:
9 Answers
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How to stop Flask from initialising twice in Debug Mode? [duplicate]
When building a Flask service in Python and setting the debug mode on, the Flask service will initialise twice. When the initialisation loads caches and the like, this can take a while. Having to do this twice is annoying when in development (debug) mode. When debug is off, the Flask service only in...
How to download Xcode DMG or XIP file?
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You can find the DMGs or XIPs for Xcode and other development tools on https://developer.apple.com/download/more/ (requires Apple ID to login).
You must login to have a valid session before downloading anything below.
*(Newest on top. For each minor version (6.3, 5...
Why is Linux called a monolithic kernel?
...d that Linux is a monolithic kernel. Does monolithic kernel mean compiling and linking the complete kernel code into an executable?
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How do I deploy Node.js applications as a single executable file? [duplicate]
Supposed I have written a Node.js application, and I now would like to distribute it. Of course, I want to make it easy for the user, hence I do not want him to install Node.js, run npm install and then manually type node app.js .
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Converting newline formatting from Mac to Windows
...In conclusion, simply replace every occurence of \n by \r\n.
Both unix2dos and dos2unix are not by default available on Mac OSX.
Fortunately, you can simply use Perl or sed to do the job:
sed -e 's/$/\r/' inputfile > outputfile # UNIX to DOS (adding CRs)
sed -e 's/\r$//' inputfil...
How to monitor the memory usage of Node.js?
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node-memwatch : detect and find memory leaks in Node.JS code.
Check this tutorial Tracking Down Memory Leaks in Node.js
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How to recognize USB devices in Virtualbox running on a Linux host? [closed]
...d filter from device, no devices is listed, even if an USB pen is attached and recognized by my Lubuntu 13.10. If i run the guest, nothing happens if I attach the device and, as above, no USB device is detected in Devices -> USB devices
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