log parallel write and log file sync are good indications of redo log
problems.
This isn't directly considered contention but more like the disk medium is
too slow to keep up.
redo log space requests generally are log buffer related, meaning the
buffer may be too small.
"Walking on water and developing software from a specification are easy if
both are frozen."
Christopher R. Spence
Oracle DBA
Fuelspot
-----Original Message-----
Sent: Monday, June 04, 2001 4:16 AM
To: Multiple recipients of list ORACLE-L
Hello all,
How does one measure if there is a contention for redo logs?
1. Is it that I see that the "Log file parallel write" has waited for more
than 0 (zero)?
or
2. You divide:-
redo log space requests/no. of redo log entries > 0.0002
Please advise.
rgds,
raja
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