performance - Multicore and thread aware.Net stopwatch.

Posted by 2018  •  article

I have thus far avoided the nightmare that is testing multi-threaded code since it just seems like too much of a minefield. I'd like to ask how people have gone about testing code that relies on threads for successful execution, or just how people have gone about testing those kinds of issues that only show up when two threads interact in a given manner?

Look, there's no easy way to do this. I'm working on a project that is inherently multithreaded. Events come in from the operating system and I have to process them concurrently.

The simplest way to deal with testing complex, multithhreaded application code is this: If its too complex to test, you're doing it wrong. If you have a single instance that has multiple threads acting upon it, and you can't test situations where these threads step all over each other, then your design needs to be redone. Its both as simple and as complex as this.

Please note that Internet Explorer version 8.x is not supported as of January 1, 2016. Please refer to this blog post for more information.

I have thus far avoided the nightmare that is testing multi-threaded code since it just seems like too much of a minefield. I'd like to ask how people have gone about testing code that relies on threads for successful execution, or just how people have gone about testing those kinds of issues that only show up when two threads interact in a given manner?

Look, there's no easy way to do this. I'm working on a project that is inherently multithreaded. Events come in from the operating system and I have to process them concurrently.

The simplest way to deal with testing complex, multithhreaded application code is this: If its too complex to test, you're doing it wrong. If you have a single instance that has multiple threads acting upon it, and you can't test situations where these threads step all over each other, then your design needs to be redone. Its both as simple and as complex as this.

Please note that Internet Explorer version 8.x is not supported as of January 1, 2016. Please refer to this blog post for more information.

ICE AV has been invited to propose a solution that incorporates the ability for venue visitors to walk thru the screen to access the elevators for a prestigious nationally significant company at their international company headquarters.

The requirement calls for a high definition, expansive viewing screen that is designed to overwhelm viewers and to provide an immersive high definition display experience.


The screen design is 22m wide and 4.4m high (Area 74 sqm) with three walk through sections and in 3.9 and 1.8mm Pitch options.

The LED screen follows similar projects that have gained wide exposure. Salesforce in their flag ship San Francisco Headquarter implemented a 32.6m wide x 4m (8112 x 960 pixels) foyer wall LED canvas that displays stunning high definition images incorporating creative realistic computer rendered video and content.

I have thus far avoided the nightmare that is testing multi-threaded code since it just seems like too much of a minefield. I'd like to ask how people have gone about testing code that relies on threads for successful execution, or just how people have gone about testing those kinds of issues that only show up when two threads interact in a given manner?

Look, there's no easy way to do this. I'm working on a project that is inherently multithreaded. Events come in from the operating system and I have to process them concurrently.

The simplest way to deal with testing complex, multithhreaded application code is this: If its too complex to test, you're doing it wrong. If you have a single instance that has multiple threads acting upon it, and you can't test situations where these threads step all over each other, then your design needs to be redone. Its both as simple and as complex as this.

I have thus far avoided the nightmare that is testing multi-threaded code since it just seems like too much of a minefield. I'd like to ask how people have gone about testing code that relies on threads for successful execution, or just how people have gone about testing those kinds of issues that only show up when two threads interact in a given manner?

Look, there's no easy way to do this. I'm working on a project that is inherently multithreaded. Events come in from the operating system and I have to process them concurrently.

The simplest way to deal with testing complex, multithhreaded application code is this: If its too complex to test, you're doing it wrong. If you have a single instance that has multiple threads acting upon it, and you can't test situations where these threads step all over each other, then your design needs to be redone. Its both as simple and as complex as this.

Please note that Internet Explorer version 8.x is not supported as of January 1, 2016. Please refer to this blog post for more information.

ICE AV has been invited to propose a solution that incorporates the ability for venue visitors to walk thru the screen to access the elevators for a prestigious nationally significant company at their international company headquarters.

The requirement calls for a high definition, expansive viewing screen that is designed to overwhelm viewers and to provide an immersive high definition display experience.


The screen design is 22m wide and 4.4m high (Area 74 sqm) with three walk through sections and in 3.9 and 1.8mm Pitch options.

The LED screen follows similar projects that have gained wide exposure. Salesforce in their flag ship San Francisco Headquarter implemented a 32.6m wide x 4m (8112 x 960 pixels) foyer wall LED canvas that displays stunning high definition images incorporating creative realistic computer rendered video and content.

A System.Diagnostics.Stopwatch instance can measure elapsed time for one interval, or the total of elapsed time across multiple intervals. In a typical System.Diagnostics.Stopwatch scenario, you call the Stopwatch.Start method, then eventually call the Stopwatch.Stop method, and then you check elapsed time using the Stopwatch.Elapsed property.

A System.Diagnostics.Stopwatch instance is either running or stopped; use Stopwatch.IsRunning to determine the current state of a System.Diagnostics.Stopwatch . Use Stopwatch.Start to begin measuring elapsed time; use Stopwatch.Stop to stop measuring elapsed time. Query the elapsed time value through the properties Stopwatch.Elapsed , Stopwatch.ElapsedMilliseconds , or Stopwatch.ElapsedTicks . You can query the elapsed time properties while the instance is running or stopped. The elapsed time properties steadily increase while the System.Diagnostics.Stopwatch is running; they remain constant when the instance is stopped.

By default, the elapsed time value of a System.Diagnostics.Stopwatch instance equals the total of all measured time intervals. Each call to Stopwatch.Start begins counting at the cumulative elapsed time; each call to Stopwatch.Stop ends the current interval measurement and freezes the cumulative elapsed time value. Use the Stopwatch.Reset method to clear the cumulative elapsed time in an existing System.Diagnostics.Stopwatch instance.


need help w/ multi-threaded, multi-CPU tick count.

Posted by 2018  •  article

 
 

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