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How to benchmark efficiency of PHP script

... If you actually want to benchmark real world code, use tools like Xdebug and XHProf. Xdebug is great for when you're working in dev/staging, and XHProf is a great tool for production and it's safe to run it there (as long as you read the instructions). The results of any one single page load aren...
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Find out who is locking a file on a network share

...an even use Action -> Connect to another computer to the file on a NAS, and it even works with our linux based NAT! Why didn't I try this earlier? – olorin Sep 24 '10 at 12:51 ...
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Switch statement: must default be the last case?

... The C99 standard is not explicit about this, but taking all facts together, it is perfectly valid. A case and default label are equivalent to a goto label. See 6.8.1 Labeled statements. Especially interesting is 6.8.1.4, which enables...
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How to perform .Max() on a property of all objects in a collection and return the object with maximu

...rating through the data, remembering the maximum element we've seen so far and the maximum value it produced under the projection. In your case you'd do something like: var item = items.MaxBy(x => x.Height); This is better (IMO) than any of the solutions presented here other than Mehrdad's se...
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What is the difference between declarative and procedural programming paradigms?

What is the difference between the declarative and procedural programming paradigms? Could you please provide some examples? ...
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Separation of business logic and data access in django

I am writing a project in Django and I see that 80% of the code is in the file models.py . This code is confusing and, after a certain time, I cease to understand what is really happening. ...
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Why both no-cache and no-store should be used in HTTP response?

...d response you may have, on every request. must-revalidate, on the other hand, only needs to revalidate when the resource is considered stale. If the server says that the resource is still valid then the cache can respond with its representation, thus alleviating the need for the server to resend ...
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A simple scenario using wait() and notify() in java

... The wait() and notify() methods are designed to provide a mechanism to allow a thread to block until a specific condition is met. For this I assume you're wanting to write a blocking queue implementation, where you have some fixed size ...
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Efficient string concatenation in C++

I heard a few people expressing worries about "+" operator in std::string and various workarounds to speed up concatenation. Are any of these really necessary? If so, what is the best way to concatenate strings in C++? ...
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Parse a .py file, read the AST, modify it, then write back the modified source code

...on source code. Basically I want to read a .py file, generate the AST , and then write back the modified python source code (i.e. another .py file). ...