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Difference between core and processor
... @Leeor I think I did the test incorrectly. it loooks like my online workspace has virtual CPUs (4) but a single processor. Thats why all of them get busy. When I performed the test on a 2 cpu physical machine (dual core), i can see that the cpu utilization is about 25% which is inline ...
DynamoDB vs MongoDB NoSQL [closed]
...t you pick what you like the most, and perhaps where you can find the most online support with.
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How do I syntax check a Bash script without running it?
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Time changes everything. Here is a web site which provide online syntax checking for shell script.
I found it is very powerful detecting common errors.
About ShellCheck
ShellCheck is a static analysis and linting tool for sh/bash scripts. It's mainly focused on handling typical...
Reading file contents on the client-side in javascript in various browsers
...ion available on the Mozilla Developer Network as well as various examples online. You would use it as follows:
var file = document.getElementById("fileForUpload").files[0];
if (file) {
var reader = new FileReader();
reader.readAsText(file, "UTF-8");
reader.onload = function (evt) {
...
“The certificate chain was issued by an authority that is not trusted” when connecting DB in VM Role
...automatically refresh. You can read more on this topic in SQL Server books online under the topic of "Encryption Hierarchy", and "Using Encryption Without Validation".
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When to use Common Table Expression (CTE)
...ive Queries Using CTE
For exciting Microsoft definitions
Taken from Books Online:
A CTE can be used to:
Create a recursive query. For more information, see Recursive Queries Using Common Table Expressions.
Substitute for a view when the general use of a view is not required; that is, you do not ...
Is there a rule-of-thumb for how to divide a dataset into training and validation sets?
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Last year, I took Prof: Andrew Ng’s online machine learning course. His recommendation was:
Training: 60%
Cross validation: 20%
Testing: 20%
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YouTube iframe API: how do I control an iframe player that's already in the HTML?
...doesn't function properly at a local host (file://). Host your (test) page online, or use JSFiddle. Examples: See the links at the top of this answer.
Q: How did you know this?
A: I have spent some time to manually interpret the API's source. I concluded that I had to use the postMessage method. To...
I just discovered why all ASP.Net websites are slow, and I am trying to work out what to do about it
...uch a huge amount of sluggishness to websites. Judging from the amount of online research I had to do (and conversations with several really experienced ASP.Net developers), a lot of people have experienced this issue, but very few people have ever got to the bottom of the cause. Maybe I will writ...
What is the AppDelegate for and how do I know when to use it?
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sometimes we see something like this in tutorials online: AppDelegate* del = [AppDelegate sharedAppDelegate]; (see developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/…) what does that mean? i can see examples of using it but i don't really understand the ...