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Alternatives to gprof [closed]
... I'm emphasizing call instructions, but it applies to any instructions. If one has an honest-to-goodness hotspot bottleneck, such as a bubble sort of a large array of numbers, then the compare/jump/swap/increment instructions of the inner loop will be at the top/bottom of nearly every stack sample. ...
Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?
...
In the same way, if you have two references to the same string, modifying one doesn't affect the other
let a = b = "hello";
a = a + " world";
// b is not affected
However, I've always heard what Ash mentioned in his answer (that using Array.join is faster for concatenation) so I wanted to test o...
How would you count occurrences of a string (actually a char) within a string?
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If you're using .NET 3.5 you can do this in a one-liner with LINQ:
int count = source.Count(f => f == '/');
If you don't want to use LINQ you can do it with:
int count = source.Split('/').Length - 1;
You might be surprised to learn that your original technique...
What is the difference between iterator and iterable and how to use them?
... am new in Java and I'm really confused with iterator and iterable. Can anyone explain to me and give some examples?
13 Ans...
When should I use Memcache instead of Memcached?
...emcache and memcached . What is the difference and how do you know which one to use? Is one outdated? It seems that memcached offers more methods so I would assume that means it has had the most development - but it also seems to require external C/C++ libraries so I'm not sure if I can install ...
MSysGit vs. Git for Windows
...n MSysGit and Git for Windows . How are they different? Why would I choose one over the other?
9 Answers
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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...ot show this weird behavior.
Of course, if an inappropriate alignment is done, it makes things worse. An unnecessary / bad alignment just eats up bytes for no reason and potentially increases cache misses, etc.
The noise it makes pretty much makes timing micro-optimizations
impossible.
H...
how can I Update top 100 records in sql server
...ion is "up" and which is "down" for the concept of top to be meaningful.
Nonetheless SQL Server allows it but doesn't guarantee a deterministic result.
The UPDATE TOP syntax in the accepted answer does not support an ORDER BY clause but it is possible to get deterministic semantics here by using a...
Pros and cons of Java rules engines [closed]
...se that example was from that first article. Not so sure how credible that one's looking anymore...:)
– Jeb
Dec 15 '11 at 21:56
6
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How can I use swift in Terminal?
...elect -switch /Applications/Xcode.app/Contents/Developer
then you can do one of these:
xcrun swift
lldb --repl
As of Xcode 6.1 - typing swift in the terminal launches the REPL as well.
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