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Super simple load test trial experience

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In order to make it super easy for anyone to get a tiny taste of what the VS Online load test experience is about, we added a new web based experience a few days ago. If you go to your account home page on any VS Online account, you’ll see a new top level tab. If you click on it you’ll get a page that allows you to run a very simple load test.  You specify an url and some basic settings for how many users you want to simulate, how long you want
the test to run, how fast you want your users clicking and what browser mix you want.  Then just click “Test now”. It will then go off an acquire load test agents from our pool, configure the test and run it. Once it’s done, it will digest all of the results and give you a simple analysis of your load test showing the average response time, # of requests per second and any errors encountered. If you want to do “real” load testing you’ll need...(Read whole news on source site)

#1,190 – VisualChildrenCount and GetVisualChild

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A FrameworkElement provides the VisualChildrenCount property and the GetVisualChild method, typically used during layout to walk through the child elements of the element participating in layout.  When you create a custom control that derives from FrameworkElement, you typically override both members, providing values that make sense for your control. Below, we use these members to get a report of the visual children […]

Implementing an F# Signal Generator

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As part of a larger project I have been working on a signal generator. A signal generator is a device (in this case an F# program) that is often used to generate waves at a particular frequency that can be interpreted as sound (by applying to a speaker as a voltage). For my project I want to generate pitches and then convert the signal to PCM audio data, wrapped in the windows WAVE file format. PCM format means that the signal is represented as a series of positive or negative values within a certain range. The number of samples per
second is called the sample rate (44,100 for CD audio). The range of the values is governed by the bit depth, again I will stick with the CD audio standard 16 bit audio, giving me a range of -32768 to 32767. Generating Signals The simplest and purest representation of a particular frequency is given by a sine wave. This graph was generated using FSharp.Charting and the following fsx file #load "../packages/FSharp.Charting.0.90.7/FSharp.Charting.fsx" open FSharp.Charting let c = seq { for x in [1.0..0.1..20.0] do yield (x, sin x) } |> Chart.Line Note that the wave has a range from -1 to 1 and a recurring regular frequency....(Read whole news on source site)

The Morning Brew #1725

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Software Visual Studio Online is in Europe! – Brian Harry announces the availability of a Visual Studio Online instance in the West Europe Azure Region, giving European users a closer (and therefore speedier and lower latency) instance of the service to use. European Datacenter & REST 1.0 – The Visual Studio blog also discuss the […]