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How many socket connections can a web server handle?
...n a single Unix flavoured OS machine - https://blog.whatsapp.com/index.php/2012/01/1-million-is-so-2011/.
And finally, this one, http://highscalability.com/blog/2013/5/13/the-secret-to-10-million-concurrent-connections-the-kernel-i.html, goes into a lot of detail, exploring how even 10 million could...
jQuery checkbox checked state changed event
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1268
Bind to the change event instead of click. However, you will probably still need to check whet...
Setting individual axis limits with facet_wrap and scales = “free” in ggplot2
...e_act <- range(range(results$act), range(results$pred))
d <- reshape2::melt(results, id.vars = "pred")
dummy <- data.frame(pred = range_act, value = range_act,
variable = "act", stringsAsFactors=FALSE)
ggplot(d, aes(x = pred, y = value)) +
facet_wrap(~variable, scal...
How do I resize a Google Map with JavaScript after it has loaded?
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28
If you're using Google Maps v2, call checkResize() on your map after resizing the container. l...
Two single-column indexes vs one two-column index in MySQL?
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answered Feb 28 '10 at 2:32
Mark ByersMark Byers
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In-Place Radix Sort
...d easily be translated to some other language. It's in-place but requires 2 * seq.length passes through the array.
void radixSort(string[] seqs, size_t base = 0) {
if(seqs.length == 0)
return;
size_t TPos = seqs.length, APos = 0;
size_t i = 0;
while(i < TPos) {
i...
MongoDB: How to update multiple documents with a single command?
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12 Answers
12
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How to stop C# console applications from closing automatically? [duplicate]
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172
You can just compile (start debugging) your work with Ctrl+F5.
Try it. I always do it and the ...
Java 8 Streams - collect vs reduce
...n would do a great deal of string copying, and the run
time would be O(n^2) in the number of characters. A more performant
approach would be to accumulate the results into a StringBuilder,
which is a mutable container for accumulating strings. We can use the
same technique to parallelize mut...
SQLite with encryption/password protection
...an for encryption.
sqleet - another encryption implementation, using ChaCha20/Poly1305 primitives. Note that wxSQLite mentioned above can use this as a crypto provider.
The SEE and SQLiteCrypt require the purchase of a license.
Disclosure: I created botansqlite3.
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