|By Coach Wei||
|September 15, 2008 12:45 PM EDT||
(beta), an online Ajax profiling tool, is available for public review now at http://www.razorspeed.com.
What Is it?
Top Call Stacks
Call Stack Visualization
Why Razor Profiler?
As an application developer:
- How do you measure the runtime behavior of your code on the vast array of client platform and browser combinations?
- Do you know why the same code works well on one browser but performs very poorly on a different browser
- Do you know whose code is causing problems, yours, or a third party library
- Do you know exactly where is the performance bottleneck?
- Different browsers (Internet Explorer, FireFox, Safari, etc) have different runtime behaviors. The same code can behave very differently on different browsers;
Razor Profiler Features
- Automation: no application code change required. Razor Profiler automatically collects all the necessary data and presents them to web developers for analysis.
- Rich lexical analysis: Razor Profiler presents rich lexcial information about the application, such as file information (number, response status, size, mimetype, percentage, etc),
tokens (size, file, percent, count), and functions (size, file, name…), etc;
- Profile scenario recording: Razor Profile enables web developers to selectively record the scenarios that they are interested in. Only recorded scenarios will be used in analysis.
- Call stack analysis: for each recorded scenario, Razor Profiler presents all the call stacks in the order of their occurence. For each call stacks, web developers can drill into it to find out
the duration of the stack, all the function calls of this stack and the duration of each call.
- Data visualization with graphing and charting: Razor Profiler presents top call stacks, top function calls of each stack, top recorded scenarios, etc. using visual charts and graphs to help web developers
better understand the runtime behavior of their application. For example, each call stack is visualized as an intuitive Gantt chart.
some Razor Profiler screen shots are available here.
How Does Razor Profiler Work?
Razor Profiler will automatically record data and visualize them for your analysis. There is no client side installation, browser configuration change or application code change required.
In order to achieve this, Razor Profiler goes through five different phases:
- Application retrieval: Once a web developer enters the application start URL into Razor Profiler, Razor Profiler client component (”the client”) will send this URL to Razor Profiler server component (”the server”).
The server performs the actually retrieval of this URL. After additional server processing (such as lexical analysis and code injection, see below), the retrieved content is sent to the client side to be displayed in a new browser window. For the developer point of view, the application is launched and running in this new browser window.
In this process, Razor Profiler Server is acting like a “proxy server”. But it is not really a “proxy server” and there is no need for developers to re-configure their browser proxy settings.
- Lexical analysis:
- Data analysis: When the developer finishes recording scenarios and starts data analysis, Razor Profiler client performs analysis of all the collected data and presents the results.
How To Get Razor Profiler?
Just go to andhttp://www.razorspeed.com download it. Follow the installation instructions to install Razor Profiler server. Or, you can try it online as an online service.
Feel free to post comments at Razor Profiler online forum
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