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How Scalable is SQLite? [closed]
...and how relatively bad the performance was. I expect that those new to the platform will encounter similar problems, and I would hope that they can identify with the first paragraph, then read the following edits and realize that there are ways of speeding up SQLite to have acceptable performance.
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OpenShift rhc setup using multiple accounts
I have two accounts on Openshift platform. How can I setup my computer so that I can manage both of them with rhc ? I cannot find any relevant option in the command line arguments.
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Why are function pointers and data pointers incompatible in C/C++?
...nverting a function pointer to a data pointer and vice versa works on most platforms but is not guaranteed to work. Why is this the case? Shouldn't both be simply addresses into main memory and therefore be compatible?
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Open files in 'rt' and 'wt' modes
...here's an additional difference between text and binary file modes (on all platforms). In text mode, read returns Unicode strings. In binary mode, read returns a bytes instance. If you want to write Python 2 code with forwards compatibility in mind, you can use io.open rather than the standard open ...
Get an OutputStream into a String
...e as you just ignore the problem instead of tackling it; Java will use the platform encoding which could be correct...or not. It's random basically. You need to find out what encoding was used to write the text to bytes and pass that encoding to toString.
– Stijn de Witt
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Timeout command on Mac OS X?
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Another simple approach that works pretty much cross platform (because it uses perl which is nearly everywhere) is this:
function timeout() { perl -e 'alarm shift; exec @ARGV' "$@"; }
Snagged from here:
https://gist.github.com/jaytaylor/6527607
Instead of putting it in a funct...
Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?
...import org.bytedeco.javacpp.*;
import org.bytedeco.javacpp.annotation.*;
@Platform(include = "Dot.h", compiler = "fastfpu")
public class Dot {
static { Loader.load(); }
static float[] a = new float[50], b = new float[50];
static float dot() {
float sum = 0;
for (int i =...
How to measure time taken by a function to execute
...result in very erronous results being displayed, especially on the Windows platform where results may be rounded+floored to the nearest 15ms boundary, resulting in weird stuff such as 0ms timings on tiny code bits.
– oligofren
Mar 6 '13 at 9:59
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CSS background image alt attribute
...ituations:
nowadays, Web browsers are available in a very wide variety of platforms with very different capacities; some cannot display images at all or only a restricted set of type of images; some can be configured to not load images. If your code has the alt attribute set in its images, most of ...
How to open a specific port such as 9090 in Google Compute Engine
...t.
For Cloud Console:
Go to the Firewall rules page in the Google Cloud Platform Console.
Click Create firewall rule.
Enter a Name for the firewall rule.
This name must be unique for the project.
Specify the Network where the firewall rule will be implemented.
Specify the Priority of the rule. ...