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What is the difference between the kernel space and the user space?
... the kernel processes. The access rights are placed on the kernel space in order to stop the users from messing up with the kernel, unknowingly.
So, when a system call occurs, a software interrupt is sent to the kernel. The CPU may hand over the control temporarily to the associated interrupt handl...
Storing integer values as constants in Enum manner in java [duplicate]
....
EDIT:
The only problem with doing this is that if you add, remove or reorder the enum values you will break the system. For many this is not an issue as they will not remove enums and will only add additional values to the end. It is also no worse than integer constants which also require you no...
File name? Path name? Base name? Naming standard for pieces of a path
...of using references that forces to scroll up. I make an edit by the way in order to improve that. Grettings
– Victor
Feb 13 '14 at 20:09
3
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Node.js vs .Net performance
...running on one core to an IIS and tomcat process using multiple cores. In order to properly compare, you need to run node clustered. See nodejs.org/api/cluster.html for a simple to use cluster solution. However, I can tell you from experience, the difference between node and async c# is 10-15% ei...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...n.
3.) When a client connects to a server, it picks a random, unused high-order source port. This way, a single client can have up to ~64k connections to the server for the same destination port.
So, this is really what gets created when a client connects to a server:
Local Computer | Remot...
Fragment transaction animation: slide in and slide out
...d:duration="@android:integer/config_longAnimTime"
USAGE
(note that the order in which you call methods on the transaction matters. Add the animation before you call .replace, .commit):
FragmentTransaction transaction = supportFragmentManager.beginTransaction();
transaction.setCustomAnimations(R...
What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...$PATH). If you now call bash, the shell will first look for it in $PATH in order, so it starts with ~/bin, where it will find your bash. Same thing happens if scripts search for bash using #!/usr/bin/env bash, so these scripts would now be working on your system using your custom bash build.
One do...
Populate data table from data reader
...on (bool)drow["IsUnique"]. I didn't need them, getting the column names in order to populate the new DataTable is enough. This managed to help me overcome a ds.Fill(adapter) issue where I could not load a large table with SELECT * FROM MyTable.
– vapcguy
Nov 17...
Some projects cannot be imported because they already exist in the workspace error in Eclipse
...stead of <name>Project2</name>.
So, I did following things in order to get the issue fixed:
Cut and paste Project2 outside the workspace
Change .project file to have <name>Project2</name>
Try importing Project2 again.
It worked for me.
...
Why use jQuery on() instead of click()
...n that live() is now depreciated is because it was poorly implemented. In order to use live(), you had to be able to select at least one element in the DOM initially (I believe). It also caused a copy of the function to run to be bound to each element - and if you have 1000 elements, that's a lot ...