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Why is reading lines from stdin much slower in C++ than Python?
...x 3.13 (Ubuntu 14.04) system, obtaining these results (these are actually 'best of 3' results; after priming the cache, of course):
$ time wc -l < /tmp/junk
real 0.280s user 0.156s sys 0.124s (total cpu 0.280s)
$ time cat /tmp/junk | wc -l
real 0.407s user 0.157s sys 0.618s (total cpu 0.775s)
$...
How Python web frameworks, WSGI and CGI fit together
...t (database connections, etc.) needs to be build which all take time.
The best if you want to run WSGI would be if your host would install mod_wsgi and made an appropriate configuration to defer control to an application of yours.
Flup is another way to run with WSGI for any webserver that can spe...
INNER JOIN vs LEFT JOIN performance in SQL Server
... have 10 rows matching and in table two you have 100000 rows matching. The best way would be to do an index scan on table one and matching 10 times in table two. The reverse would be an index scan that loops over 100000 rows and tries to match 100000 times and only 10 succeed. So if the statistics i...
Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
... = 4; // now $arr1 and $arr3 are the same
?>
For the first part, the best way to be sure is to try ;-)
Consider this example of code :
function my_func($a) {
$a[] = 30;
}
$arr = array(10, 20);
my_func($arr);
var_dump($arr);
It'll give this output :
array
0 => int 10
1 => in...
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
...ve anything, w/o error. We have found that using all lowercase names works best. E.g. instead of doing something like mongooseInstace.model('MyCollection', { "_id": Number, "xyz": String }) it's better to do (even though the collection name is really MyCollection): mongooseInstace.model('mycollectio...
javax.faces.application.ViewExpiredException: View could not be restored
... If you're submitting the form synchronously (non-ajax) anyway, then you'd best either make the view stateless (see later section), or to send a redirect after POST (see previous section).
Having a ViewExpiredException on page refresh is in default configuration a very rare case. It can only happe...
Why does Unicorn need to be deployed together with Nginx?
... combination of both traditional web servers and Rack servers to apply the best of both of their capabilities. Nginx is incredibly fast at request redirection through proxy balancing and serving up static content. Unicorn is quite capable of processing HTTP headers and balancing inbound requests t...
What is the difference between “INNER JOIN” and “OUTER JOIN”?
...
best answer so far, alternative syntax - that's what I've been looking for, thanks!
– Joey
Sep 8 '19 at 8:21
...
C++ - passing references to std::shared_ptr or boost::shared_ptr
... hierarchies or scopes that nest around the call stack, so that's why it's best to assume that lifetimes don't do that in such programs.
– Daniel Earwicker
Nov 30 '08 at 19:47
7
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How do I choose grid and block dimensions for CUDA kernels?
...ing in multiples of the warp size, the search space is very finite and the best configuration for a given piece of code relatively easy to find.
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