Have a look at this http://en.wikipedia.org/wiki/Percentile The formula is n = (N/100) * p + 1/2 Which would make it the 91th sample when the 1/2 is rounded up.
Cheers Oliver -----Original Message----- From: Jmeter_User [mailto:umesh.hosa...@wipro.com] Sent: Sunday, 21 June 2009 6:37 p.m. To: jmeter-user@jakarta.apache.org Subject: Regarding the 90 percentile calculation Hi, I have seen the posts on 90 percentile. I am having a question on how Jmeter is calcuating. From my understaning, if I have 100 respones, if I sort them in assending order, for me 90th percentile will be the 90th response time. Correct me if I am wrong. But in Jmeter I tried the simillar exercise, I got the 100 responses, and I had enabled the jtl file, through which I captured all the 100 responses sorted in excel. When I compared the 90th percentile given in aggregate report and the 90th response time in excel. I see there is a mismatch. The 91th response time in excel is same as 90th percentile in aggregate report. Is that expected behaviour? I was under the impression, 90th percentile, is the 90 users getting the response equal to or less than the 90th user response time. Please help me understand this. Thanks in advance. -- View this message in context: http://www.nabble.com/Regarding-the-90-percentile-calculation-tp24131959p24131959.html Sent from the JMeter - User mailing list archive at Nabble.com. --------------------------------------------------------------------- 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
