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ab load testing
...While ab runs, there will be -c clients hitting the site. This is what actually decides the amount of stress your site will suffer during the benchmark.
-n: Indicates how many requests are going to be made. This just decides the length of the benchmark. A high -n value with a -c value that your ser...
WAMP/XAMPP is responding very slow over localhost
...t the problem is. WAMP was very slow, so I reformatted my computer and installed WAMP. Still, accessing localhost is very, very slow, and sometimes it doesn't even load at all. I even removed it and replaced it with XAMPP, but I still got the same result. What might possibly be the problem? Here's m...
navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't
...ame problem, and finding almost no information online about it. Nothing at all in the books. Finally I found this sober query on stackoverflow and (ha!) it was the final impetus I needed to set up an account here.
And I have a partial answer, but alas not a complete one.
First of all, realise that...
What is the meaning of symbol $ in jQuery?
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You know, this REALLY should be the right answer for this question... I can't believe all those joke-y answers got all the up-votes.
– reedvoid
Aug 15 '13 at 12:59
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Mapping a function on the values of a map in Clojure
...I like this version because it's super short and obvious if you understand all the functions and such it uses. And if you don't it's an excuse to learn them!
– Runevault
Nov 5 '09 at 3:14
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Disable Automatic Reference Counting for Some Files
... clear on this point, seem to suggest that as long as each class is either all ARC or all manually-managed, the classes can be integrated into a single program.
You only can't mix ARC and non-ARC in a single class; the document says that sending retain, release, autorelease, or retainCount messages...
String vs. StringBuilder
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I like this answer a lot, especially the advice to code for clarity before performance. As developers, we spend as much or more time reading code as we do writing it.
– Scott Lawrence
Sep 16 '08 at 18:18
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What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
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First of all shuffling is the process of transfering data from the mappers to the reducers, so I think it is obvious that it is necessary for the reducers, since otherwise, they wouldn't be able to have any input (or input from every ...
JPA EntityManager: Why use persist() over merge()?
...ed (any changes you make will not be part of the transaction - unless you call merge again). You can through use returned instance (managed one).
Maybe a code example will help.
MyEntity e = new MyEntity();
// scenario 1
// tran starts
em.persist(e);
e.setSomeField(someValue);
// tran ends, an...
Stretch and scale a CSS image in the background - with CSS only
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CSS3 has a nice little attribute called background-size:cover.
This scales the image so that the background area is completely covered by the background image while maintaining the aspect ratio. The entire area will be covered. However, part of the image may...