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Re: Performance Issues - Multitenancy



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Brian,
Turn on SQL Logging and perform the same search between the two different users and compare the SQL, maybe even provide the sql here for analysis....the 'slow vs fast' queries should be fairly obvious what's causing the difference.

On Fri, Nov 18, 2016 at 11:24 AM, Brian Pancia <panciab@finityit.com> wrote:
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We are running into some serious performance issues with multitenancy.  We're on BMC ITSM 9.1 SP1 and SQL Server 2012.  If I do a search on a form like CTM:People with an account that has unrestricted access the search comes back in about 2-3 seconds for 130000 records.  That same search with a user that is restricted to a certain company will come back in 70 seconds, which is a significant difference.  That is the first issue.  The second issue is that the database server CPU utilization will spike to 100% during the searches.  During the unrestricted user test not a big deal because it is only a couple seconds and no one notices the spike.  However, for the other user it brings the system to a halt for 70 seconds.  If the user kills their session prior to the search complete the search will hang in the database and consume 100% of the CPU indefinitely.


Any recommendations would be appreciated.  We have done all the BMC recommended performance tuning on the systems.


Thanks,


Brian


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