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What is the difference between HTTP status code 200 (cache) vs status code 304?

...s browser is deciding to request from server and for some it's deciding to read from stored (cached) files. Why is this ? Every files has an expiry date, so If a file is not expired then the browser will use from cache (200 cache). If file is expired, browser requests server for a file. Server ch...
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NTFS performance and large volumes of files and directories

...ntig.exe on a regular basis to keep your big folder's index defragmented. Read below only if you're bored. The actual limit isn't on the # of fragment, but on the number of records of the data segment that stores the pointers to the fragment. So what you have is a data segment that stores pointer...
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What is a Proxy in Doctrine 2?

I just finished reading all the Doctrine 2 documentation, I started my own sandbox, I understood most of the principes, but there is still a question and I couldn't find any complete explanation in the doc. ...
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What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?

...cerier: on a single core machine, yes, but multi-core machines and multi-threaded programs can use more than 1 CPU second per elapsed second. – Jonathan Leffler Dec 16 '14 at 12:19 ...
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Are static methods inherited in Java?

I was reading A Programmer’s Guide to Java™ SCJP Certification by Khalid Mughal. 14 Answers ...
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Vim: What's the difference between let and set?

... a little bit confused. You are quoting parts of the documentation. If you read the whole thing you'll find it agrees with all my cases. [Note: the no-prefixed options can be confusing. Also note option& has a trailing & that you may have missed.] – sehe ...
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Why does this code using random strings print “hello world”?

...e mastered some fork-join-fu to make this thing burn all CPU cores (just threads are boring, right?), please share your code. I would greatly appreciate it. public static void main(String[] args) { long time = System.currentTimeMillis(); generate("stack"); generate("over"); generate...
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How to make a HTML Page in A4 paper size page(s)?

...icle dives into things like setting page-breaks, etc. so you might want to read that completely. In your case, the trick is to create the print CSS first. Most modern browsers (>2005) support zooming and will already be able to display a website based on the print CSS. Now, you'll want to make...
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C/C++ macro string concatenation

... @mr5 Read the comments, carefully. Macro names passed as macro arguments are not expanded before being passed. They are, however, expanded in the body of the macro. So if A is defined as FRED, STRINGIZE_NX(A) expands to "A" but ST...
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Why do people say that Ruby is slow? [closed]

... @ZelphirKaltstahl I am late to this thread, but I would like to comment on your comment :) I agree interpreters and compilers play a major role on how a program performs, but the language is very important too. Dynamic languages like Ruby and Python are slower th...