2590282 - High SSQLCACHE_SPIN in spinlock contention whe update a column with numeric datatype | SAP Knowledge Base Article

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2590282 - High SSQLCACHE_SPIN in spinlock contention whe update a column with numeric datatype

Symptom

  • Observed Very high SSQLCACHE_SPIN spinlock contention as well as slow performance and high CPU
  • dbcc prsqlcache show most of the statements are in the same hash bucket

    Bucket# 5655, Entry Count: 4666, address 0x0x2aaec1b821c0
    Empty Bucket Ct: 7810, Maximum Entries In Bucket# 5655: 4666, Avg. Entries Per Bucket: 0.735686, Std. Dev.: 51.829462
     

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Environment

  • Adaptive Server Enterprise 16
  • Adaptive Server Enterprise 15.7

Product

SAP Adaptive Server Enterprise 16.0

Keywords

CR812823,update,numeric,procedure cache,dynamic sql , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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