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Difference between sampling and profiling in jVisualVM
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edited Aug 26 '12 at 12:36
answered Aug 26 '12 at 12:31
n...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...faster code if I optimize for size ( -Os ) instead of speed ( -O2 or -O3 ), and I have been wondering ever since why.
6...
How does grep run so fast?
... The result of this is
that, in the limit, GNU grep averages fewer than 3 x86 instructions
executed for each input byte it actually looks at (and it skips many
bytes entirely).
GNU grep uses raw Unix input system calls and avoids copying data
after reading it. Moreover, GNU grep AVOIDS...
Difference between no-cache and must-revalidate
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edited Feb 18 at 2:53
Anish B.
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answered Nov ...
Why doesn't Ruby support i++ or i-- (increment/decrement operators)?
...I got an idea from http://www.pragprog.com:8080/rubyfaq/rubyfaq-5.html#ss5.3
|and thought to try. I didn't manage to make "auto(in|de)crement" working so
|could somebody help here? Does this contain some errors or is the idea
|wrong?
(1) ++ and -- are NOT reserved operator in Ruby.
(2) C's inc...
How to search for a part of a word with ElasticSearch
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Saeed Zhiany
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answered Sep 20 '11 at 9:47
rokaroka
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Check a collection size with JSTL
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433
<c:if test="${companies.size() > 0}">
</c:if>
This syntax works only in EL 2.2...
How can I create directories recursively? [duplicate]
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Jason S
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answered May 14 '11 at 18:48
Cat Plus PlusCat Plus Plus
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Passing arguments with spaces between (bash) script
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answered Jun 13 '13 at 18:21
chepnerchepner
357k4646 gold badges352352 silver badges475475 bronze badges
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Why use String.Format? [duplicate]
...y
string s = string.Format("Hey, {0} it is the {1}st day of {2}. I feel {3}!", _name, _day, _month, _feeling);
vs:
string s = "Hey," + _name + " it is the " + _day + "st day of " + _month + ". I feel " + feeling + "!";
Format Specifiers
(and this includes the fact you can write custom format...