POOR PERFORMANCE WITH LOB INSERTS
(Doc ID 978045.1)
Last updated on APRIL 09, 2020
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.1 to 22.214.171.124.0 [Release 10.2 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Inserts into blob columns are intermittently performing poorly.
Generally, the inserts complete in a few milliseconds, but occasionally
take several seconds or even minutes to complete.
The top wait event during this time is "db file sequential read"
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