jmeter-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From sebb <seb...@gmail.com>
Subject Re: Generate Summary Results - Incorrect Calculations?
Date Wed, 07 Jan 2009 14:29:19 GMT
[Cross-post to JMeter-dev list removed]

On 07/01/2009, Woodcock, Simon <swoodcoc@qualcomm.com> wrote:
> Help please . .
>
>  I'm I misinterpreting the summary results? Take the following for example . .
>
>  Generate Summary Results +   127 in  14.4s =    8.8/s Avg:   122 Min:     7 Max: 783
Err:     0 (0.00%)
>  Generate Summary Results +  7681 in 179.9s =   42.7/s Avg:  1269 Min:     1 Max: 17388
Err:     0 (0.00%)
>  Generate Summary Results =  7808 in 194.3s =   40.2/s Avg:  1251 Min:     1 Max: 17388
Err:     0 (0.00%)
>  Generate Summary Results + 10258 in 192.9s =   53.2/s Avg:  3589 Min:     1 Max: 43845
Err:     3 (0.03%)
>  Generate Summary Results = 18066 in 374.3s =   48.3/s Avg:  2578 Min:     1 Max: 43845
Err:     3 (0.02%)
>  Generate Summary Results + 11856 in 188.9s =   62.8/s Avg:  2683 Min:     0 Max: 45321
Err:     6 (0.05%)
>  Generate Summary Results = 29922 in 554.4s =   54.0/s Avg:  2620 Min:     0 Max: 45321
Err:     9 (0.03%)
>
>  Total number of requests are an addition of requests made in each interval -  127+7681+10258+11856
= 29922

Agreed.

>  Total time would then, you would assume, be an addition of each of the interval times
- 14.4+179.9+192.9+188.9 = 576.1s

No, the total time is calculated independently from the first and last
times seen.

The variation is due to timer resolution.

>  However, total time seems to be calculated as -  14.4+180+180+180 = 554.4s
>
>  Where 180s is the default interval time.
>
>  When calculating total request per second, the calculation is:
>
>  29922 / 554.4 = 53.97 requests per second
>
>  As opposed to:
>
>  29922 / 576.1 = 51.94 requests per second
>
>  Is there not a discrepancy in the total elapsed time and therefore the requests per
second or am I completely misunderstanding the results given?

See above.

>  Any help clarifying this would be greatly appreciated.
>
>
>  Thanks in advance,
>
>
>  Simon.
>
>  --
>  Simon Woodcock
>  Staff Engineer / Manager
>
>  QUALCOMM Poole Limited
>  Voyager House, 253-257 High Street North, Poole, Dorset, BH15 1DX UK
>  Tel: +44 (0)1202 440610, Fax: +44 (0)1202 440601
>  www.qualcomm.com<http://www.qualcomm.com>
>  This e-mail transmission, and any documents, files or previous e-mail messages attached
to it, may contain confidential information that is legally privileged. If you are not the
intended recipient, or a person responsible for delivering it to the intended recipient, you
are hereby notified that any disclosure, copying, distribution or use of any of the information
contained in or attached to this message is STRICTLY PROHIBITED. Interception of e-mail is
a crime under the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521 and 2107-2709.
If you have received this transmission in error, please immediately notify me by reply e-mail
at simon.woodcock@qualcomm.com<mailto:simon.woodcock@qualcomm.com> or by telephone at
+44 (0)1202 207397 and destroy the original transmission and its attachments without reading
them or saving them to disk. Thank you.
>
>

---------------------------------------------------------------------
To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: jmeter-user-help@jakarta.apache.org


Mime
View raw message