`self` is how much time was spent doing work directly in that function.

`total` is how much time was spent in that function, and in the functions it called.

**Self Time:** For a function, is the amount of time to execute code within the function (inline statements). 
*Checking the performance of individual functions is known as bottom-up analysis.*

**Total Time:** For a function, is the self time of that function and the self times of all functions that function calls. 
*Checking the performance of functions along with their callees is top-down analysis.*

**NB:** Just because a function has a high self time, doesn&#39;t mean that the function itself is inefficient. It is also important to look at how many times that function is being called.


[Article by Intel][1]


  [1]: https://software.intel.com/en-us/vtune-amplifier-help-self-time-and-total-time

What are the differences between the following commands?:

&lt;!-- language: lang-bash --&gt;

    git diff foo master   # a 
    git diff foo..master  # b
    git diff foo...master # c

[The diff manual](http://jk.gs/git-diff.html#_examples) talks about it:

&gt; Comparing branches
&gt; 
&gt;     $ git diff topic master    &lt;1&gt;
&gt;     $ git diff topic..master   &lt;2&gt;
&gt;     $ git diff topic...master  &lt;3&gt;
&gt; 
&gt; 1. Changes between the tips of the topic and the master branches.
&gt; 2. Same as above.
&gt; 3. Changes that occurred on the master branch since when the topic branch was started off it.

but isn&#39;t totally clear to me.







What are the differences between double-dot &quot;..&quot; and triple-dot &quot;...&quot; in Git diff commit ranges?

From my understanding:

An **interpreted** language is a high-level language run and executed by an interpreter (a program which converts the high-level language to machine code and then executing) on the go; it processes the program a little at a time.

A **compiled** language is a high-level language whose code is first converted to machine-code by a compiler (a program which converts the high-level language to machine code) and then executed by an executor (another program for running the code).

Correct me if my definitions are wrong.

Now coming back to Python, I am bit confused about this. Everywhere you learn that Python is an interpreted language, but it&#39;s interpreted to some intermediate code (like byte-code or IL) and *not* to the machine code. So which program then executes the IM code? Please help me understand how a Python script is handled and run.  

Is Python interpreted, or compiled, or both?

What is the difference between the &#39;self&#39; and &#39;total&#39; columns in the Chrome CPU profiling of JS code?

![enter image description here][1]


  [1]: http://i.stack.imgur.com/JRFqN.png

Difference between &#39;self&#39; and &#39;total&#39; in Chrome CPU Profile of JS

<p>What is the difference between the 'self' and 'total' columns in the Chrome CPU profiling of JS code?</p>
<p><img src="http://i.stack.imgur.com/JRFqN.png" alt="enter image description here"></p>


I have a poll system and I want answers for this poll to be colored.
For example: If it&#39;s 10% it would be red, if 40% it would be yellow and if 80% it would be green, so I want my javascript code to use the rgb colors to make a color according to the given percentage.

 	function hexFromRGB(r, g, b) {
		var hex = [
			r.toString( 16 ),
			g.toString( 16 ),
			b.toString( 16 )
		];
		$.each( hex, function( nr, val ) {
			if ( val.length === 1 ) {
				hex[ nr ] = &quot;0&quot; + val;
			}
		});
		return hex.join( &quot;&quot; ).toUpperCase();
	}  


Now I want hex from percent.

from green to red color depend on percentage

I am using [Flot][1] to graph some of my data and I was thinking it would be great to make this graph appear fullscreen (occupy full space on the monitor) upon clicking on a button. Currently, my `div` is as follows:

    &lt;div id=&quot;placeholder&quot; style=&quot;width:800px;height:600px&quot;&gt;&lt;/div&gt;

Of course, the style attribute is only for testing. I will move this to `CSS` after during the actual design. Is there anyway I could make this div fullscreen and still preserve all event handling?


  [1]: http://people.iola.dk/olau/flot/examples/

How do I make a div full screen?

I&#39;ve found the following contract in a Node.js module:

    module.exports = exports = nano = function database_module(cfg) {...}

I wonder what&#39;s the difference between `module.exports` and `exports` and why both are used here.

module.exports vs exports in Node.js

I&#39;m trying to write a simple code with a `setTimeout`, but the `setTimeout` just won&#39;t wait the time it&#39;s supposes to and the code execute immediately. What am I doing wrong?

    setTimeout(testfunction(), 2000);

Why is the method executed immediately when I use setTimeout?

My situation:

    var id_tag = [1,2,3,78,5,6,7,8,47,34,90];

I would like to *`delete where id_tag = 90`* and to return:

    var id_tag = [1,2,3,78,5,6,7,8,47,34];

How can I do that?

Javascript - remove an array item by value

How do I write a chrome extension such that every time a user clicks the icon, my script is run but no popup is opened?  (I would look this up in the docs myself but for whatever reason they suddenly stopped working, 404ing every page, as I got to this point).

I&#39;m assuming it&#39;s just setting up the manifest correctly.  Here&#39;s what I have now:

    {
      &quot;name&quot;: &quot;My Extension&quot;,
      &quot;version&quot;: &quot;0.1&quot;,
      &quot;description&quot;: &quot;Does some simple stuff&quot;,
      &quot;browser_action&quot;: {
        &quot;popup&quot; : &quot;mine.html&quot;,
        &quot;default_icon&quot;: &quot;logo.png&quot;
      },
      &quot;permissions&quot;: [
    	&quot;notifications&quot;
      ]
    }

Run script each time Chrome extension icon clicked

The code below works well in Safari but in Chrome and Firefox the form will not submit.  Chrome console logs the error `An invalid form control with name=&#39;&#39; is not focusable`.  Any ideas?

Note that whilst the controls below do not have names, they should have names at the time of submission, populated by the Javascript below.  The form DOES work in Safari.

    &lt;form method=&quot;POST&quot; action=&quot;/add/bundle&quot;&gt; 
	&lt;p&gt; 
		&lt;input type=&quot;text&quot; name=&quot;singular&quot; placeholder=&quot;Singular Name&quot; required&gt; 
		&lt;input type=&quot;text&quot; name=&quot;plural&quot; placeholder=&quot;Plural Name&quot; required&gt; 
	&lt;/p&gt; 
	&lt;h4&gt;Asset Fields&lt;/h4&gt; 
    &lt;div class=&quot;template-view&quot; id=&quot;template_row&quot; style=&quot;display:none&quot;&gt; 
        &lt;input type=&quot;text&quot; data-keyname=&quot;name&quot; placeholder=&quot;Field Name&quot; required&gt; 
        &lt;input type=&quot;text&quot; data-keyname=&quot;hint&quot; placeholder=&quot;Hint&quot;&gt; 
        &lt;select data-keyname=&quot;fieldtype&quot; required&gt; 
            &lt;option value=&quot;&quot;&gt;Field Type...&lt;/option&gt; 
            &lt;option value=&quot;Email&quot;&gt;Email&lt;/option&gt; 
            &lt;option value=&quot;Password&quot;&gt;Password&lt;/option&gt; 
            &lt;option value=&quot;Text&quot;&gt;Text&lt;/option&gt; 
        &lt;/select&gt;    
        &lt;input type=&quot;checkbox&quot; data-keyname=&quot;required&quot; value=&quot;true&quot;&gt; Required
        &lt;input type=&quot;checkbox&quot; data-keyname=&quot;search&quot; value=&quot;true&quot;&gt; Searchable
        &lt;input type=&quot;checkbox&quot; data-keyname=&quot;readonly&quot; value=&quot;true&quot;&gt; ReadOnly
        &lt;input type=&quot;checkbox&quot; data-keyname=&quot;autocomplete&quot; value=&quot;true&quot;&gt; AutoComplete
        &lt;input type=&quot;radio&quot; data-keyname=&quot;label&quot; value=&quot;label&quot; name=&quot;label&quot;&gt; Label
        &lt;input type=&quot;radio&quot; data-keyname=&quot;unique&quot; value=&quot;unique&quot; name=&quot;unique&quot;&gt; Unique
        &lt;button class=&quot;add&quot; type=&quot;button&quot;&gt;+&lt;/button&gt; 
        &lt;button class=&quot;remove&quot; type=&quot;button&quot;&gt;-&lt;/button&gt; 
    &lt;/div&gt; 
     
    &lt;div id=&quot;target_list&quot;&gt;&lt;/div&gt; 
        &lt;p&gt;&lt;input type=&quot;submit&quot; name=&quot;form.submitted&quot; value=&quot;Submit&quot; autofocus&gt;&lt;/p&gt; 
    &lt;/form&gt;
    
    &lt;script&gt; 
    function addDiv()
    {
        var pCount = $(&#39;.template-view&#39;, &#39;#target_list&#39;).length;
        var pClone = $(&#39;#template_row&#39;).clone();
        $(&#39;select, input, textarea&#39;, pClone).each(function(idx, el){
            $el = $(this);
            if ((el).type == &#39;radio&#39;){
                $el.attr(&#39;value&#39;, pCount + &#39;_&#39; + $el.data(&#39;keyname&#39;));
            }
            else {
                $el.attr(&#39;name&#39;, pCount + &#39;_&#39; + $el.data(&#39;keyname&#39;));
            };
        });
        $(&#39;#target_list&#39;).append(pClone);
        pClone.show();
    }
     
    function removeDiv(elem){
        var pCount = $(&#39;.template-view&#39;, &#39;#target_list&#39;).length;
        if (pCount != 1)
        {
            $(elem).closest(&#39;.template-view&#39;).remove();
        }
    };
     
    $(&#39;.add&#39;).live(&#39;click&#39;, function(){
        addDiv();
    });
     
    $(&#39;.remove&#39;).live(&#39;click&#39;, function(){
        removeDiv(this);
    });
     
    $(document).ready(addDiv);
     
    &lt;/script&gt;

&quot;Invalid form control&quot; only in Google Chrome

I am new to *Web SQL database* and I use it to save data in a local database in a web page.

　I can ***create*** a ***database*** by

    var db = openDatabase(&#39;database&#39;, &#39;1.0&#39;, &#39;my database&#39;, 2 * 1024 * 1024);

　and I can ***create*** a ***table*** by doing this

    db.transaction(function (tx) {
      tx.executeSql(&#39;CREATE TABLE IF NOT EXISTS mytable (blah,blah)&#39;);
    });


　I can ***delete*** the ***table*** by

    db.transaction(function (tx) {
      tx.executeSql(&#39;DROP TABLE mytable&#39;);
    });


　but is there a way to delete the ***`database`*** programmatically?

How to delete a database in WebSQL programmatically?

I&#39;d like to download the .crx file of an extension from webstore, I use fiddler to analyze the network request when I install an extension from webstore and got it.   
For example, for the extension: https://chrome.google.com/webstore/detail/bjclhonkhgkidmlkghlkiffhoikhaajg  
the download link is:  

https://clients2.googleusercontent.com/crx/download/OgAAADQ_Loe5gfVPF2OUaB35tvex-NKlmA8V4K5YlWuvLCknMH7egLLmnMoFuCZePl_idE1GMf8jZC2KbjQqyyLDoDAAxlKa5eDp-z9frOppHWtQsRU3-iGrrrrA/extension_1_7_11.crx  
Now I&#39;m wondering if there is a universal method for get .crx of an extension, the problem is how did Google encryption    

 `bjclhonkhgkidmlkghlkiffhoikhaajg`  

 into   

`OgAAADQ_Loe5gfVPF2OUaB35tvex-NKlmA8V4K5YlWuvLCknMH7egLLmnMoFuCZePl_idE1GMf8jZC2KbjQqyyLDoDAAxlKa5eDp-z9frOppHWtQsRU3-iGrrrrA` ?  

 any idea will be helpful.


How to download a CRX file from the Chrome web store for a given ID?

I would like to know if there is some kind of special markup to enable the Chrome autofill feature for a specific form. I only found questions about how to disable it, but I would like to know if I can add some kind of markup to the html code in order to tell the browser &quot;this is the input for the address&quot; or &quot;this is the ZIP code field&quot; to correctly fill it in (assumed the user activated this feature).

How to trigger Autofill in Google Chrome?

I have a HotSpot JVM heap dump that I would like to analyze. The VM ran with `-Xmx31g`, and the heap dump file is 48 GB large.

* I won&#39;t even try `jhat`, as it requires about five times the heap memory (that would be 240 GB in my case) and is awfully slow.
* Eclipse MAT crashes with an `ArrayIndexOutOfBoundsException` after analyzing the heap dump for several hours.

What other tools are available for that task? A suite of command line tools would be best, consisting of one program that transforms the heap dump into efficient data structures for analysis, combined with several other tools that work on the pre-structured data.

Tool for analyzing large Java heap dumps

I have an xdebug profile on a php script that I parsed with kcachegrind. Here is a screenshot showing that the most time spent inside any given function was spent inside `&lt;cycle 1&gt;` and the top &#39;Callers&#39; were made from &#39;include&#39; and &#39;include_once&#39; in index.php.

![kcachegrind of xdebug profile showing cycle 1][1]

This profile was run during a stress-test using apache &#39;ab&#39; so there were many concurrent connections occurring.

What does `&lt;cycle 1&gt;` indicate on an xdebug profile?

  [1]: http://i.stack.imgur.com/PSguD.png

What is &quot;&lt;Cycle 1&gt;&quot; an indication of in Xdebug?

I am using cProfile on a module named bot4CA.py so in the console I type: 

    python -m cProfile -o thing.txt bot4CA.py


After the module runs and exits, it creates a file named thing.txt and when I open it, there is some information there, and the rest is a jumble of characters instead of a neatly organized file of data which is what I want. Does any one know how to use cProfile and end up with neatly organized table of data like when using it normally on command line, except in a file?
Here&#39;s an example of some of the data in the .txt file:

 

    {(   s)   build\bdist.win32\egg\colorama\winterm.pyi&#39;   t	   reset_all(   i   i   gp&#224;&#194;s% ?geO&#217;H&#204;œE?{(   s-   build\bdist.win32\egg\colorama\ansitowin32.pyi&#165;

What I really want is what happens when you invoke cProfile.run() which results in a neatly organized table printed showing the execution times of all the functions except instead of printed, saved in a file as this program is fairly large and runs a lot of functions.

cProfile saving data to file causes jumbles of characters

Let&#39;s say I wanted to benchmark two programs: foo.py and bar.py.

Are a couple thousand runs and the respective averages of `time python foo.py` and `time python bar.py` adequate enough for profiling and comparing their speed?
&lt;br/&gt;&lt;br /&gt;&lt;br /&gt;
&lt;b&gt;Edit:&lt;/b&gt; Additionally, if the execution of each program was sub-second (assume it wasn&#39;t for the above), would `time` still be okay to use?

Is the UNIX `time` command accurate enough for benchmarks?

What is a standard way of profiling Scala method calls?

What I need are hooks around a method, using which I can use to start and stop Timers.

In Java I use aspect programming, aspectJ, to define the methods to be profiled and inject bytecode to achieve the same.

Is there a more natural way in Scala, where I can define a bunch of functions to be called before and after a function without losing any static typing in the process?



Content Type	Original Author	Original Content on Stackoverflow
Question	CoolUserName	View Question on Stackoverflow
Solution 1 - Javascript	user149341	View Answer on Stackoverflow
Solution 2 - Javascript	JSON C11	View Answer on Stackoverflow

Difference between 'self' and 'total' in Chrome CPU Profile of JS

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

Is Python interpreted, or compiled, or both?

What are the differences between double-dot ".." and triple-dot "..." in Git diff commit ranges?

Attributions