Joel Liu's personal annotations on this page
Joel bookmarked
on 2008-10-23
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However, testers also take a black-box approach in running the load tests against the system under test. For a Web application, testers will use tools that simulate concurrent users/HTTP connections and measure response times. Some lightweight open source tools I've used in the past for this purpose are ab, siege, httperf. A more heavyweight tool I haven't used yet is OpenSTA. I also haven't used The Grinder yet, but it is high on my TODO list.
This link has been bookmarked by 15 people . It was first bookmarked on 11 Oct 2006, by huangye177.
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Alexey Tarasevich"tuning "
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Once you know where you want to be, you can start on your way there by constantly increasing the load on the system while looking for bottlenecks.
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developers can use profilers
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However, testers also take a black-box approach in running the load tests against the system under test. For a Web application, testers will use tools that simulate concurrent users/HTTP connections and measure response times. Some lightweight open source tools I've used in the past for this purpose are ab, siege, httperf. A more heavyweight tool I haven't used yet is OpenSTA. I also haven't used The Grinder yet, but it is high on my TODO list.
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scottj Scott# expected load in terms of concurrent users or HTTP connections
# acceptable response time -
olivier mohttp://openload.sourceforge.net/
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