On 2 February 2012 05:03, Stanton W Derry <[email protected]> wrote: > I'm performance testing a set of web services with an expected response time > of ~20-25ms. I've developed the script using HTTP Request (Http 3.1) > samplers doing POSTs with a SOAP payload. The samplers have Response > Assertions, Regular Expression Extractors, and some have XPath Extractors. > The results have created a bit of a quandry. The average response times in > JMeter are in the range of 50-60ms and the average request times on the web > servers is ~15ms. The network latency is < 1ms from the JMeter load > generators to the web servers. > > Question: Is JMeter processing adding in the additional 35-45ms?
Very unlikely unless JMeter or the host is so busy that it cannot service all its threads promptly. But in that case I would expect to see wide variations in elapsed time between threads . You could try using HttpClient 4.x instead of 3.1 and see if that makes a difference. > Does the response time include processing of the assertions and extractors? No, not unless you use a Transaction Controller. > Stan > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
