TimeProcessing ten times slower on SSRS 2008 R2 compared to SSRS 2008


scenario

we have existing live ssrs server , new ssrs server.  new server superior existing server regards cpus and memory.

the target databases similar in data not identical (as live database moving , have not been able set full copy of live system).  there less data in new databases.

we testing performance of 1 of our more complicated reports on new ssrs server.  doing both running report in browser on ssrs server , within our application on client machine.

data retrieval on average twice fast.  processing time on average ten times slower.  rendering time on average 4 times slower.

we celebrating right processing , rendering times showed same improvement data retrieval time.  however, instead @ loss why processing , rendering taking long.

existing environment

2 x intel xeon e5420 (4 cores) 2.49 ghz

8gb ram

windows server standard sp1

ssrs 2008 standard edition sp2

new environment

1 x amd opteron 6172 2.10 ghz (12 cores)

8gb ram

windows server 2008 r2 standard sp1

ssrs 2008 r2 sp2

testing stratgey

run report worst case scenario parameters.  collect averages executionlog3.

the results described above.

diagnostics

we have checked:

  • task manager
  • resource monitor
  • a wide variety of performance counters
  • teh ssrs configuration settings regarding memory
  • the additional data field in executionlog3

nothing jumping out issue.  new server not appear under pressure whatsoever. 

we have rebuild report database.

we @ complete loss.

can advise?

can give indication reports design like? 

are large extract reports rendering hundreds of pages... or smaller. 

is performance degradation worse on types of reports , better on others?

josh ash



SQL Server  >  SQL Server Reporting Services, Power View



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