Loadrunner Interview Experience

Can anyone help me out with the answers for the below questions..Thanks & Regards


He gave me questions to ask them to prescreen.

How do you set up a monitor?

What are you monitoring?

What kind of monitoring have you done?

What kind of commands do you use on a UNIX platform to resolve a performance issue in a monitoring process?

How do you identify a performance issue? What do you do to resolve it? What steps do you take?

What would you consider to be a performance issue?

How would you go about fixing the issue?

Again, they aren't doing the monitoring, but expected to instruct others on what to do. They should have shell scripting experience and preferably some C scripting skills. Must have strong loadrunner skills.

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spicemit

  • Dec 7th, 2007
 

I would try to put my answers below

How do you set up a monitor?
We can add monitor in LR Controller by clicking on Resources graph and add UNIX or WIndows resources. They right click and add counters (memory, I/O, page in/out, CPU,Disk,etc) for that resource. Remember, for unix resources, you have to set rstat first.

What are you monitoring?
Mostly it should be Throughput, Response Times, Utilization (CPU & Disk), Available Memory, DB Stats using statspack utility.

What kind of monitoring have you done?
same as above

What kind of commands do you use on a UNIX platform to resolve a performance issue in a monitoring process?
Various commands such as SAR, IOSTAT, VMSTAT helps in identifying bottlenecks and increasing performance by eliminating those bottlenecks

How do you identify a performance issue? What do you do to resolve it? What steps do you take?
Identify bottlenecks. If it is a h/w bottleneck, you can always increase the capacity or put a max for that particular h/w configuration. If it is s/w bottleneck, take this issue with respective team such as DBA for query tunings, developer for code optimization, etc.

What would you consider to be a performance issue?
Scalaibility Issue & Bottlenecks (h/w or s/w)

How would you go about fixing the issue?
Already answered...

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