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.NET - Dictionary locking vs. ConcurrentDictionary
...lel extensions and concurrent data structures for .Net3.5 sp1.
There is a set of samples for .Net 4 Beta 2, which describes in pretty good detail on how to use them the parallel extensions.
I've just spent the last week testing the ConcurrentDictionary using 32 threads to perform I/O. It seems t...
How should I choose an authentication library for CodeIgniter? [closed]
...uth
Pros
Full featured
Lean footprint (20 files) considering the feature set
Very good documentation
Simple and elegant database design (just 4 DB tables)
Most features are optional and easily configured
Language file support
reCAPTCHA supported
Hooks into CI's validation system
Activation emails
...
“Java DateFormat is not threadsafe” what does this leads to?
...r, and looking at the code of SimpleDateFormat, some methods call calendar.set(...) and others call calendar.get(...). This is clearly not thread-safe.
I haven't looked into the exact details of why DateFormat isn't thread-safe, but for me it's enough to know that it is unsafe without synchronizati...
Does have to be in the of an HTML document?
...ed this out both to the WhatWG and to the W3C, and in doing so unwittingly set in motion events that caused the two specs to diverge.
WhatWG's solution to the inconsistency between the normative spec and non-normative index was to accept my patch correcting the non-normative index.
The W3C, on the...
One SVN repository or many?
...cess of checking out and branching in the one-repository-multiple-projects setup? I'm working now with a company that has many projects in one repository, each with its own /project/<trunk><branch><tags> folder system. But the engineers have been checking out all projects at once f...
What are the possible values of the Hibernate hbm2ddl.auto configuration and what do they do
...'none'. To use 'none', you will receive warning message: org.hibernate.cfg.SettingsFactory - Unrecognized value for "hibernate.hbm2ddl.auto": none
– petertc
Jun 6 '14 at 7:14
14
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Git-Based Source Control in the Enterprise: Suggested Tools and Practices?
...mon opinion, I think that using a DVCS is an ideal choice in an enterprise setting because it enables very flexible workflows. I will talk about using a DVCS vs. CVCS first, best-practices and then about git in particular.
DVCS vs. CVCS in an enterprise context:
I wont talk about the general pros/...
How to get HttpClient to pass credentials along with the request?
... client.Headers.Add(HttpRequestHeader.ContentType, "application/json; charset=utf-8");
client.UploadData("http://url/api/controller", "POST", Encoding.UTF8.GetBytes(data));
}
}
catch (Exception exc)
{
// handle exception
}
finally
{
wic.Undo();
}
Note: Requires NuGet package: ...
What are the main performance differences between varchar and nvarchar SQL Server data types?
...nvarchar is going to have significant overhead in memory, storage, working set and indexing, so if the specs dictate that it really will never be necessary, don't bother.
I would not have a hard and fast "always nvarchar" rule because it can be a complete waste in many situations - particularly ETL...
What is the difference between Google App Engine and Google Compute Engine?
...rol of installed disk drives. If you deploy a website, you're in charge of setting up DNS etc.
Google App Engine (Standard) is like a read-only sandboxed folder where you upload code to execute from and don't worry about the rest (yes: read-only - there are a fixed set of libraries installed for yo...