On 1 September 2011 15:17, Sherif Amer <sherif.moh.a...@gmail.com> wrote: > view result in *table*
OK, I see - you mean the figure in red at the bottom of the screen. I have just written a test using the Java sampler so I can ensure that the correct times are created. I get the same average, but the deviation is calculated as 280, not 581 or 323. Same if I use the Summary Listener. The JMeter value agrees with the "population standard deviation", where the sum of square diffs is divided by the number of values (i.e. 4) before taking the square root. The value 323 results from dividing the sum of squares diffs by 3 (= 4-1) and then taking the square root. This is the "sample standard deviation". Both are valid interpretations of standard deviation. Perhaps JMeter should have used the latter, but it does not. I don't understand where the value 581 comes from. If you still have the raw sample data, perhaps you can create a Bugzilla issue and attach the JTL file with a screenshot of the Table Listener. > On Thu, Sep 1, 2011 at 3:13 PM, sebb <seb...@gmail.com> wrote: > >> On 1 September 2011 15:06, Sherif Amer <sherif.moh.a...@gmail.com> wrote: >> > Which sampler were you using? >> > *HTTP request* >> >> Sorry, I meant - which Listener were you using? >> >> > Which version of JMeter? >> > *2.4* >> > >> > On Thu, Sep 1, 2011 at 2:21 PM, sebb <seb...@gmail.com> wrote: >> > >> >> On 1 September 2011 13:56, Sherif Amer <sherif.moh.a...@gmail.com> >> wrote: >> >> > i made load test for 4 pages and the sample time was >> 426,1093,1127,921 >> >> and >> >> > when i showed the result in table >> >> > >> >> > The average was 892 which is ok >> >> >> >> Agreed. >> >> >> >> > And the deviation was 581 which is totally wrong, if you calculate it >> >> > yourself the result will simply will be 323. >> >> >> >> Which sampler were you using? >> >> >> >> Which version of JMeter? >> >> >> >> > On Thu, Sep 1, 2011 at 1:48 PM, sebb <seb...@gmail.com> wrote: >> >> > >> >> >> On 1 September 2011 13:43, Sherif Amer <sherif.moh.a...@gmail.com> >> >> wrote: >> >> >> > hello !! >> >> >> > >> >> >> > i have question :) does Jmeter calculating the the deviation >> >> incorrectly >> >> >> in >> >> >> > the listener like the table and graphic shapes ? >> >> >> >> >> >> No. >> >> >> >> >> >> What makes you think the calculations are wrong? >> >> >> >> >> >> Please provide some evidence. >> >> >> >> >> >> > Regards, >> >> >> > >> >> >> > Sherif Amer >> >> >> > >> >> >> >> >> >> --------------------------------------------------------------------- >> >> >> To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org >> >> >> For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org >> >> >> >> >> >> >> >> > >> >> >> >> --------------------------------------------------------------------- >> >> To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org >> >> For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org >> >> >> >> >> > >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org >> For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org >> >> > --------------------------------------------------------------------- To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org
