Elevated engine utilization and spinlock contention on the default data cache can be seen in a specific case where the following are true
- Very high connection rate, 1000+ per second
- Usage of set_appcontext and get_appcontext
While set_appcontext and get_appcontext are not required for this issue, they add additional logical IO on the master..sysattributes table which is the object contributing to the spinlock contention.
- SAP Adaptive Server Enterprise (ASE) 16.0
- SAP Adaptive Server Enterprise (ASE) 15.7
SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0
CR818013, CR#818013, 818013 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem
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