Very Slow Performance While Import For Particular Table
Last updated on JULY 04, 2014
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 to 184.108.40.206 [Release 9.2 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 04-Jul-2014***
Traditional import (imp) is slow on a particular table. Process state dump shows, imp is waiting for 'log file sync':
waiting for 'log file sync' blocking sess=0x0 seq=4338 wait_time=0
If you import with COMMIT=N, the import is quick.
From event 10046 you always see the waiting statement:
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