Server scalability clarification

[Aroorganesha]

Hi LR Forum Guys,

Can you please clarify the below few points regard to the load.

Am currently running the performance execution to find the scalability of the WAS ( IBM ) server though load runner with 2 LG .

Run1 : Through my load runner i can able ramp up maximum of 40 hits per seconds with irrespective number of users. ie. even i ramping up the user level to 100 i can able to see only  40 transaction per second and my LR CPU and Memory is less then 20-30% and also WAS server utilization is less then 20% and memory too low. here i want to find the reason for why am not able to see the maximum number of hits.

Run2. Same run am doing it through two different loadrunner and observed 40+40 =80 hits per second and still the WAS CPU /LR CPU are very less. 

Question : We need to find why the LR is not able to increase the TPS level ( i believe 2MB for any http request per user ) and what is the maximum capacity of the WAS server ( until to reach the cpu utilization as 80% or any failure from the server end ).

Thanks

Aroorganesh

[Aroor Ganesha]

Added to that below mail,  I have cross check the CPU, Memory. Disk i/O , run queue, SGA pool and heap dump also which all seems to be normal behavior.

From the below question, can I consider  WAS server is able to handle  80TPS ? and also added to that I ramped the load of 40 users through the SOAP UI also , which is also able to get the good response time and  TPS.

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Regards
Ganesh