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What are the differences between virtual memory and physical memory?
...ocesses to have their own address spaces. This protects one process's data from being written over by another process. It also lets you give different permissions to different address spaces, so some users of the system can have higher read/write privileges than others. Having the same amount of vir...
How to access environment variable values?
... PYTHONPATH is used to add new search path to Python (sys.path) from outside Python. Have a look at docs.python.org/using/cmdline.html#environment-variables
– Rod
Feb 7 '11 at 14:41
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Django TemplateDoesNotExist?
...achine is running Python 2.5 and Nginx on Ubuntu 8.10, with Django builded from latest development trunk.
20 Answers
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How to check SQL Server version
... Connect to the instance of SQL Server, and then run the following query:
Select @@version
An example of the output of this query is as follows:
Microsoft SQL Server 2008 (SP1) - 10.0.2531.0 (X64) Mar 29 2009
10:11:52 Copyright (c) 1988-2008 Microsoft Corporation Express
Edition (64-bit) ...
ListView item background via custom selector
...t possible to apply a custom background to each Listview item via the list selector?
10 Answers
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Technically, why are processes in Erlang more efficient than OS threads?
From Erlang Programming (2009):
7 Answers
7
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AsyncTask Android example
...ticed that your onClick listener does not check to see which View has been selected. I find the easiest way to do this is via switch statements. I have a complete class edited below with all suggestions to save confusion.
import android.app.Activity;
import android.os.AsyncTask;
import android.os.B...
Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
I want to capture the Ctrl+C ( SIGINT ) signal sent from the console and print out some partial run totals.
10 Answers
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How is Docker different from a virtual machine?
...sources, a full VM is the way to go. If you just want to isolate processes from each other and want to run a ton of them on a reasonably sized host, then Docker/LXC/runC seems to be the way to go.
For more information, check out this set of blog posts which do a good job of explaining how LXC works...
Maximum Java heap size of a 32-bit JVM on a 64-bit OS
...er. On most modern 32-bit Windows systems the maximum heap size will range from 1.4G to 1.6G. On 32-bit Solaris kernels the address space is limited to 2G. On 64-bit operating systems running the 32-bit VM, the max heap size can be higher, approaching 4G on many Solaris systems.
(http://www.oracle....