Return-Path: X-Original-To: apmail-jakarta-jmeter-user-archive@www.apache.org Delivered-To: apmail-jakarta-jmeter-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 2A5187EC6 for ; Fri, 2 Sep 2011 14:51:38 +0000 (UTC) Received: (qmail 60893 invoked by uid 500); 2 Sep 2011 14:51:37 -0000 Delivered-To: apmail-jakarta-jmeter-user-archive@jakarta.apache.org Received: (qmail 60867 invoked by uid 500); 2 Sep 2011 14:51:36 -0000 Mailing-List: contact jmeter-user-help@jakarta.apache.org; run by ezmlm Precedence: bulk List-Unsubscribe: List-Help: List-Post: List-Id: "JMeter Users List" Reply-To: "JMeter Users List" Delivered-To: mailing list jmeter-user@jakarta.apache.org Received: (qmail 60858 invoked by uid 99); 2 Sep 2011 14:51:36 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 02 Sep 2011 14:51:36 +0000 X-ASF-Spam-Status: No, hits=1.8 required=5.0 tests=FREEMAIL_FROM,FREEMAIL_REPLY,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of sebbaz@gmail.com designates 209.85.220.172 as permitted sender) Received: from [209.85.220.172] (HELO mail-vx0-f172.google.com) (209.85.220.172) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 02 Sep 2011 14:51:30 +0000 Received: by vxi29 with SMTP id 29so2712059vxi.31 for ; Fri, 02 Sep 2011 07:51:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=oISc2fWfbv0J/mJPsrJwW3LDl8iiD84Q7QrHeqXh/pM=; b=dkvjhLi7vV0kJ62E4jc+LptWAYqwnkhjIWcQngXyybfucJq5SU4037Rmz2smkL4jRa Cbi7ExZNWUHooF/I6f6/TTa58hA1FldoY5HRybD6hTEQ7gQSaLHze6cMg6TOxl/Zi9Og LMoKXKdP8EQwIReu9OmaZAzAv9QWGdaO2nqec= MIME-Version: 1.0 Received: by 10.52.67.4 with SMTP id j4mr709622vdt.333.1314975069456; Fri, 02 Sep 2011 07:51:09 -0700 (PDT) Received: by 10.220.85.207 with HTTP; Fri, 2 Sep 2011 07:51:09 -0700 (PDT) In-Reply-To: References: Date: Fri, 2 Sep 2011 15:51:09 +0100 Message-ID: Subject: Re: Jmeter Deviation From: sebb To: JMeter Users List Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 2 September 2011 15:08, Sherif Amer wrote: > thanks very much for the response, regarding "The aggregate graph does no= t > display the deviation" i calculated it manually :) and it is not the same > one shown in the table. So what has the aggregate graph got to do with it then? And did you use the appropriate calculation, i.e. population standard devia= tion? > regarding the bugzilla and the JTL can elaborate more details as it is my > first time here :) Bugzilla: http://jakarta.apache.org/jmeter/issues.html JTL is the sample output file; may be in CSV or XML format. Without the sample data it's impossible to provide further help. > On Fri, Sep 2, 2011 at 1:53 PM, sebb wrote: > >> On 2 September 2011 13:07, Sherif Amer wrote= : >> > Hello, i re test the full test plan again and i got strange results fo= r >> > the average and for the deviation >> > i have 4 pages and i made 10 request per page so the result is 40 requ= est >> > when i show the result in table i got the Average =3D 142 and the devi= ation >> =3D >> > 93 >> > when i show the result in aggregate graph and i calculated the average >> and >> > the deviation =A0the results were different from the results on the ta= ble >> !!! >> >> The aggregate graph does not display the deviation, so I don't >> understand what you mean. >> >> > =A0 in the graph the Average =3D 140 and the deviation =3D 41. >> > any idea why the results are different even it is same number of reque= sts >> > and the same test plan !!? >> >> Please provide the JTL results file - but do not send it to the list. >> >> Create a bugzilla issue and attach the JTL file to that. >> Make sure you explain what you see in the listeners and what you >> expected to see. >> >> > On Thu, Sep 1, 2011 at 4:11 PM, sebb wrote: >> >> >> >> Note that OpenOffice.org Calc has STDEV and STDEVP functions that >> >> calculate the two different versions of std. dev.; I imagine Excel ha= s >> >> similar functions. >> >> >> >> On 1 September 2011 16:06, Sherif Amer >> wrote: >> >> > Thanks very much for the clarification, i will re create the full t= est >> >> > scenario and update you. >> >> > >> >> > On Thu, Sep 1, 2011 at 3:37 PM, sebb wrote: >> >> > >> >> >> On 1 September 2011 15:17, Sherif Amer >> >> >> 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, no= t >> 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 = (=3D >> >> >> 4-1) and then taking the square root. >> >> >> This is the "sample standard deviation". >> >> >> >> >> >> Both are valid interpretations of standard deviation. Perhaps JMet= er >> >> >> 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 Ta= ble >> >> >> Listener. >> >> >> >> >> >> > On Thu, Sep 1, 2011 at 3:13 PM, sebb wrote: >> >> >> > >> >> >> >> On 1 September 2011 15:06, Sherif Amer > > >> >> >> 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 wrote= : >> >> >> >> > >> >> >> >> >> On 1 September 2011 13:56, Sherif Amer >> >> >> >> >> >> >> >> >> wrote: >> >> >> >> >> > i made load test for 4 pages and the sample time was >> >> >> >> =A0426,1093,1127,921 >> >> >> >> >> 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 >> wrote: >> >> >> >> >> > >> >> >> >> >> >> On 1 September 2011 13:43, Sherif Amer >> >> >> >> >> >> > >> >> > >> >> >> >> >> 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-unsubscribe@jakarta.apache.org >> >> >> >> >> >> For additional commands, e-mail: >> >> >> jmeter-user-help@jakarta.apache.org >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> > >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> --------------------------------------------------------------------- >> >> >> >> >> To unsubscribe, e-mail: >> >> >> >> >> jmeter-user-unsubscribe@jakarta.apache.org >> >> >> >> >> For additional commands, e-mail: >> >> >> >> >> jmeter-user-help@jakarta.apache.org >> >> >> >> >> >> >> >> >> >> >> >> >> >> > >> >> >> >> >> >> >> >> >> >> >> >> >> --------------------------------------------------------------------- >> >> >> >> To unsubscribe, e-mail: >> jmeter-user-unsubscribe@jakarta.apache.org >> >> >> >> For additional commands, e-mail: >> jmeter-user-help@jakarta.apache.org >> >> >> >> >> >> >> >> >> >> >> > >> >> >> >> >> >> ------------------------------------------------------------------= --- >> >> >> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org >> >> >> For additional commands, e-mail: jmeter-user-help@jakarta.apache.o= rg >> >> >> >> >> >> >> >> > >> >> >> >> --------------------------------------------------------------------- >> >> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org >> >> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org >> >> >> > >> > >> > >> > --------------------------------------------------------------------- >> > To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org >> > For additional commands, e-mail: jmeter-user-help@jakarta.apache.org >> > >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org >> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org >> >> > --------------------------------------------------------------------- To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org For additional commands, e-mail: jmeter-user-help@jakarta.apache.org