Dieter,
Journaling without commitment control has a significant impact on batch
jobs doing writes...the more writes, the more impact.
About the only scenario where it would NOT have an impact is if all the
tables you're writing to have FRCRATIO(1) anyway...
Charles
On Fri, Jan 18, 2013 at 2:06 AM, D*B <dieter.bender@xxxxxxxxxxxx> wrote:
on a balanced system journaling with or without commitment controll
doesn't have measurable performance effects, as long as you don't need
maximum performance for bulk operations writing some million of records
with one SQL statement.
abusing commitment controll for multi transactional workload, you have to
have in mind lock contentions caused by record locks lasting longer as some
miliseconds, that's not only a performance issue, other jobs, waiting for a
locked record might break down or not work as designed, if they are not
transaction safe (don't use commitment controll).
D*B
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