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From Eric Caspole <eric.casp...@amd.com>
Subject Re: Average images per Home Page almost always fails
Date Thu, 11 Feb 2010 18:31:47 GMT
In reading about a dozen posts on this topic, I found two answers, 1)  
"I don't know why" and 2) try running longer. Is that it?
Regards,
Eric

On Feb 10, 2010, at 6:04 PM, Shanti Subramanyam wrote:

> Please read the archives of this list.
>
> Shanti
>
> On Wed, Feb 10, 2010 at 5:59 PM, Eric Caspole  
> <eric.caspole@amd.com> wrote:
> Hi Olio Experts,
> I now have my system running apparently correctly, with no errors  
> in the apache logs except for the "deprecated" messages like:
>
> [Wed Feb 10 18:34:53 2010] [error] [client 10.236.44.157] PHP  
> Deprecated:  Function split() is deprecated in /usr/local/apache2/ 
> htdocs/oliophp/classes/MemCached.php on line 26
> [Wed Feb 10 18:34:53 2010] [error] [client 10.236.44.157] PHP  
> Deprecated:  Function session_unregister() is deprecated in /usr/ 
> local/apache2/htdocs/oliophp/public_html/calendar.php on line 38
>
> which seems to be new since PHP 5.3.
>
> I have a system with over 20 cores, and over 32GB memory running  
> CentOS x64. In every run but one I have made, the runs always fail  
> with something like:
>
>  Average images loaded per Home Page 2.96>= 3 FAILED
>
> My system is only 3% busy at 125 concurrent users and no disk I/O  
> wait shown in vmstat.  I have memcached, mysql, and the filestore  
> all running on the SUT. Nothing seems wrong with the setup and  
> there are no helpful errors shown anywhere. The faban load driver  
> system is only about 2% busy during the test. It really isn't any  
> different with 25 up to 125 users.
>
> What is the trick, if any, to make this one statistic pass? I don't  
> have the flexibility to change the disk or network setup in this  
> configuration. I am not trying to shoot for the moon here, I just  
> want a reproduceable stable setup at a moderately low load.
>
> Thanks for any advice,
> Eric
>
>
>
> UIDriver
> UIDriver metric:25.347 ops/sec
> Driver start:Wed Feb 10 19:25:19 CST 2010
> Driver end:Wed Feb 10 19:37:19 CST 2010
> Total number of operations: 15208
> Pass/Fail:FAILED
>
> Operation Mix
> TypeSuccess
> CountFailure
> CountMixRequired Mix
> (2% deviation allowed)Pass/Fail
> HomePage3988026.22%26.15%PASSED
> Login1581010.4%10.22%PASSED
> TagSearch5171034%33.45%PASSED
> EventDetail3746024.63%24.68%PASSED
> PersonDetail34802.29%2.61%PASSED
> AddPerson1040.68%.84%PASSED
> AddEvent27001.78%2.04%PASSED
>
> Response Times (seconds)
> TypeAvgMaxSD90th%Reqd. 90th%Pass/Fail
> HomePage0.0743.0630.1490.2601.000PASSED
> Login0.0383.0260.1110.0401.000PASSED
> TagSearch0.0933.0590.1310.2802.000PASSED
> EventDetail0.0803.0900.1500.2602.000PASSED
> PersonDetail0.0940.7150.0940.2802.000PASSED
> AddPerson0.3393.3220.3270.4803.000PASSED
> AddEvent0.3660.9060.1240.5604.000PASSED
>
> Cycle/Think Times (seconds)
> TypeTargeted AvgActual AvgMinMaxPass/Fail
> HomePage4.9414.9430.00925.000PASSED
> Login4.7674.7690.01425.000PASSED
> TagSearch4.7844.7870.01625.000PASSED
> EventDetail4.9794.9800.01725.000PASSED
> PersonDetail5.3245.3260.07825.000PASSED
> AddPerson4.8674.8662.05124.423PASSED
> AddEvent4.9374.9372.14713.701PASSED
>
> Miscellaneous Statistics
> DescriptionResultsTargeted
> ResultsAllowed
> DeviationPass/Fail
> % EventDetail views where attendee added9.10>= 6PASSED
> EventDetail count where attendee can be added3501
> Average images references on Home Page10.00100.5PASSED
> Average images loaded per Home Page2.96>= 3FAILED
> Average image bytes received per Home Page17476.58>= 15000PASSED
> Average images on Tag Search Results3.40> 0PASSED
> Average images on Event Detail1.00>= 1PASSED
> Total successful AddEvent calls332
> Total successful AddPerson calls136
> Concurrent user to ops/sec ratio4.93<= 5.25PASSED
>
> Little's Law Verification
> Number of users=125
> Sum of Avg. RT * TPS for all Tx Types=122.9246
>
>



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