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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...rmula:
set = ( address / lineSize ) % numberOfsets
This sort of formula ideally gives a uniform distribution across the sets, because each memory address is as likely to be read (I said ideally).
It's clear that overlaps can occur. In case of a cache miss, the memory is read in the cache and the...
Open popup and refresh parent page on close popup
...
I didn't know window.opener, thanks! I always put the caller window in a variable in the contentWindow of the child. :-/
– kay
May 29 '12 at 2:36
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how to debug the js in jsfiddle
I am looking at this jsfiddle: http://jsfiddle.net/carpasse/mcVfK/
It works fine that is not the problem , I just want to know how to debug through the javascript. I tried to use the debugger command and I cant find it in the sources tab?
any idea how I can debug this?
...
How to profile a bash shell script slow startup?
... is an octal tab character.
You should get a trace log in /tmp/bashstart.PID.log that shows the seconds.nanoseconds timestamp of each command that was executed. The difference from one time to the next is the amount of time that the intervening step took.
As you narrow things down, you can move se...
Pretty-Print JSON in Java
... Nice answer, more better than using shit like GSON and other side libraries
– Acuna
May 21 at 20:01
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How to make Twitter Bootstrap menu dropdown on hover rather than click
... users:
body {
padding-top: 60px;
padding-bottom: 40px;
}
.sidebar-nav {
padding: 9px 0;
}
.dropdown-menu .sub-menu {
left: 100%;
position: absolute;
top: 0;
visibility: hidden;
margin-top: -1px;
}
.dropdown-menu li:hover .sub-menu {
visibility: visible;
...
How to show loading spinner in jQuery?
...o the ajaxStart/Stop events on the element itself.
$('#loadingDiv')
.hide() // Hide it initially
.ajaxStart(function() {
$(this).show();
})
.ajaxStop(function() {
$(this).hide();
})
;
The ajaxStart/Stop functions will fire whenever you do any Ajax calls.
Upda...
How to easily truncate an array with JavaScript?
... edited May 21 '15 at 1:37
David Mason
2,58433 gold badges2626 silver badges3939 bronze badges
answered Jun 4 '09 at 21:04
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What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...ray) to a primitive returns its default value, which for objects with a valid toString() method is the result of calling object.toString() (§8.12.8). For arrays this is the same as calling array.join() (§15.4.4.2). Joining an empty array results in an empty string, so step #7 of the addition opera...
How to use the same C++ code for Android and iOS?
Android with NDK has support to C/C++ code and iOS with Objective-C++ has support too, so how can I write applications with native C/C++ code shared between Android and iOS?
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