RE: Any way to get more response time breakdowns using Jmeter?

[Jian Tong]

Alan, thank you so much for your detailed explanation.   As latency is even a better choice than elapased, shouldn't it be included in the 'summary report' and 'aggregate report' ? In this case, we can use both times for the measurement of the systems' performance.   Thanks   Jian >>> "Christensen, Alan" <[EMAIL PROTECTED]> 12/17/06 7:00 PM >>> Latency is the time at which the first byte of the html page gets received by jmeter.  After that point in time several TCP/IP segments may be required to actually download the entire page.  These segments may require acknowledgements which would introduce additional network delays before the page is fully received.  In addition, the bandwidth of the "last mile" will typically limit the speed at which the rest of the page gets delivered.  The latency time is typically a better measure of system response time than the total response time.  This is especially true of large pages where the network component of the response time can easily dominate the user response time. One thing I noted is that the latency time, and many other parameters, do not show up in the log unless the xml format is selected.  This makes it much more difficult to get the log into an excel spreadsheet than is the case with a simple .csv log.  I'm assuming that this limitation is a bug in jmeter.  Does anyone know if this is the case, or if there are any workarounds? -----Original Message----- From: Jian Tong [mailto:[EMAIL PROTECTED] Sent: Sunday, December 17, 2006 1:27 PM To: [EMAIL PROTECTED]; jmeter-user@jakarta.apache.org Subject: Re: Any way to get more response time breakdowns using Jmeter? I am still not clear what latency time is. Anybody can give a definition of latency time in JMeter ?  The sample xml log in User Manual shows Latency time is much less than Elapsed time. How is Latency related to Elapased time ? Thanks Jian ------------------------------------------ Jian Tong - QA Production and Operations, CBC.ca Extension:  3357 Location:    2C400-N ------------------------------------------- >>> sebb <[EMAIL PROTECTED]> 12/15/06 9:59 AM >>> On 14/12/06, Christensen, Alan <[EMAIL PROTECTED]> wrote: > Most of the commercial testing tools provide a lot more information with > respect to response time.  For example, most of them report the response > time to the first byte as well as the response time to the last byte. > Breakdowns of DNS time and content downloads are also typically > included.  Does Jmeter have any of these capabilities, and if so, how > would I turn them on? See: http://jakarta.apache.org/jmeter/usermanual/listeners.html some listeners support latency (time to first response). Other timings are not currently collected - please feel free to create a Bugzilla enhancement request with full details of what you are seeking. Patches also welcome. S. --------------------------------------------------------------------- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]