Webserver Stress Tool 18.104.22.1681
Webserver Stress Tool 22.214.171.1241 Ranking & Summary
Webserver Stress Tool 126.96.36.1991 description
Webserver Stress Tool 188.8.131.521 is a HTTP-client/server test application designed to pinpoint critical performance issues in your web site or web server that may prevent optimal experience for your site's visitors.
By simulating the HTTP requests generated by hundreds or even thousands of simultaneous users, you can test your web server performance under normal and excessive loads to ensure that critical information and services are available at speeds your end-users expect.
Detailed test logs and several easy to read graphs make analyzing results a snap. Webserver Stress Tool for Windows (2000/XP/2003/Vista) can benchmark almost any HTTP server (e.g. static pages, JSPs/ASPs, or CGIs) for performance, load, and stress-tests.
Webserver Stress Tool simulates large numbers of users accessing a website via HTTP/HTTPS. The software can simulate up to 10.000 users that independently click their way through a set of URLs. Simple URL patterns are supported as well as complex URL patterns (via a Script file).
Webserver Stress Tool simulates independent users stepping through a set of URLs or through URLs that you can specify using a VB script. Based on parameters you specify, the application not only requests the HTML of a URL but also frames, images, flash files, etc. emulating the same behaviour a web browser would show when accessing the website.
Each user is simulated by a separate thread with his own session information (i.e., cookies for each simulated user are stored separately) and "surfs" the URLs independently from the other users – just like in real-world Web usage.
URLs can be parameterized for each user and the sequence of URLs can be varied. POST and GET requests are supported as well as BASIC HTTP Authentication and several other settings. With the new scripting functionality you can even create highly complex URL patterns for large scale web applications.
How much load can Webserver Stress Tool generate?
- More than ~ 500 MBit/s network load
- More than 1.000.000 pageviews per hour and
- Up to 10.000 simultaneous users
1. Supported Test TypesWebserver Stress Tool supports a number of different testing types. For example:
- Performance Tests—this test queries single URLs of a webserver or web application to identify and discover elements that may be responsible for slower than expected performance. This test provides a unique opportunity to optimize server settings or application configurations by testing various implementations of single web pages/script to identify the fastest code or settings.
- Load Tests—this tests your entire website at the normal (expected) load. For load testing you simply enter the URLs, the number of users, and the time between clicks of your website traffic. This is a “real world” test.
- Stress Tests—these are simulations of “brute force” attacks that apply excessive load to your webserver. This type of “brute force” situation can be caused by a massive spike in user activity (i.e., a new advertising campaign). This is a great test to find the traffic threshold for your webserver.
- Ramp Tests—this test uses escalating numbers of users over a given time frame to determine the maximum number of users the webserver can accommodate before producing error messages.
- Various other tests—working with Webserver Stress Tool simply gives you more insight about your website, e.g. to determine that web pages can be requested simultaneously without problems like database deadlocks, semaphores, etc.
Graphical display of test results
2. Reported readings Webserver Stress Tool provides a number of robust and flexible reports and logging features to help you gather valuable data about your webserver and website performance. Reports include:
- Click Time—the time it took for a user to complete a pageview (i.e., loading a page and all associated images/objects). This is the time between clicking a link and end of the http last request – which would be the moment a user would see the complete page.
- Time for DNS—the time it takes for a client to resolve a URL's domain name using the client system's current DNS server.
- Time to connect—time to set up a connection to the server.
- Time to first byte (TFB)—time between initiating a request and receiving the first byte of data from the server.
- Request Time (TLB, Time to last Byte)—time for a single HTTP request (i.e. HTML page, image, frameset, etc.).
- Server Bandwidth—the bandwidth achieved by the webserver.
- User Bandwidth—the average bandwidth that was available for each user.
- Sent Requests—the number of requests sent to the server during a period.
- Received Requests—the number of answers received from the server during a period.
- Open Requests—the number of open requests for a given moment.
- Error rates—the number of failed requests per time period, per user, or per URL
3. Reporting and Logging. This stress and load test tool provides graphs and data in a number of different formats including
- Several easy to use graphs (visit the sample tests page for sample graphs)
- Summary Text Log
- Detailed Text Log
- User Text Log (one for each user)
- Machine readable CSV files for the request log and the raw graph data
4. Other Features. Webserver Stress Tool also offers a number of other robust, flexible features to provide you the most comprehensive webserver stress and load test tool on the market. These features include
- Built-in report generator—reports can be generated as HTML files and MS WORD documents
- Includes a URL recorder (complete web browser) to select the URL(s) you want to test
- Works on any HTTP or HTTP(s) URL
- Can test any script—CGI, ASP, PHP, etc.
- Can also be used to test requests of larger download files (e.g. ZIP)
- Works with any webserver (no part of the software has to be installed on the server)
- Includes support for :proxies (not for HTTPS) with optional proxy authentication; basic user authentication (username/password); user agent string; any HTTP request header lines; individual cookie handling for each simulated user (e.g. ASP-Session-IDs; redirected requests and " http-meta-refresh " redirections; several IPs for the client machine (up to 5000 IPs); data rate throttling (e.g. to simulate users accessing the server via a slow modem line); timeouts (e.g. to simulate surfers that click away after 20 seconds without answer of the server)
- When testing more than one URL several URL selection methods can be selected to simulate different user behavior
- Tests can run until a specified number of clicks is reached for each user; until a specified time has passed
- Tests can be started at a specified time
- Optional link checker can check all URLs for validity
- Optionally all received HTML pages can be written to files
- Optionally all resulting files can be archived in a ZIP file for each test for later reference
Enhancements: Added a "Select Local IP Automatically" setting
1.Test Client Details
Operating System: Although Webserver Stress Tool runs on all 32bit Windows versions (Win95, 98, ME, XP, 2000, NT, 2003) it is strongly recommended to run it on a Windows NT machine or better (i.e. Windows XP, 2000, NT, 2003, Vista) because of limitations in Win9x/ME's IP stack.
Hardware: Serious testing can be conducted with a machine of 1 Ghz and more. More CPU power and multithreading or multiprocessing will be helpful for high traffic scenarios (e.g. when several thousand users are simulated). Try to supply 512 MB of RAM, 1 GB should be enough even for high traffic scenarios. Webserver Stress Tool records the CPU load of the client machine during the test, so you can check after a test whether you need more processing power.
Network: For load tests the network connection between the test client and the server is critical. For the connection between the server and the test client you must provide the full total bandwidth that an equal number of real users would use when accessing your server!
2. Target Webserver Details. Webserver Stress Tool can test all HTTP servers that are accessible via TCP/IP since nothing has to be installed on the webserver and the connections to the server are using standard HTTP protocol. For example you can use it with the following webserver environments
Apache on Windows or Linux
Various flavors of Linux
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