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recommendations to tune the DB from statspack.

BugsMar 15 2017 — edited Mar 15 2017

Please provide recommendations to tune the DB .

From the statspack report:

Top 5 Timed Events                                                    Avg %Total

~~~~~~~~~~~~~~~~~~                                                   wait   Call

Event                                            Waits    Time (s)   (ms)   Time

----------------------------------------- ------------ ----------- ------ ------

log file sync                                  370,269       3,934     11   64.8

log file parallel write                        317,906       1,110    5    25.4

CPU time                                                             168              3.5

direct path read                                 5,340         102     24     2.3

db file sequential read                       80,134        80      1       1.8

Foreground Wait Events  :

                                                             Avg          %Total

                                          %Tim Total Wait   wait    Waits   Call

Event                               Waits  out   Time (s)   (ms)     /txn   Time

---------------------------- ------------ ---- ---------- ------ -------- ------

log file sync                    370,299    0      3,834     11      1.1   64.8

direct path read                    5,340    0        101     24      0.0    2.3

direct path write                   3,212    0         20      6      0.0     .5

Background Wait Events :

                                                             Avg          %Total

                                          %Tim Total Wait   wait    Waits   Call

Event                               Waits  out   Time (s)   (ms)     /txn   Time

---------------------------- ------------ ---- ---------- ------ -------- ------

log file parallel write           317,906    0      1,110      5      0.8   25.4

db file sequential read          80134    0         69      1      0.3    1.6

db file parallel write              1,376    0         19     14      0.0     .4

log file sequential read             300   0         11     37      0.0     .2

Thank you!!

This post has been answered by Vsevolod Afanassiev on Mar 15 2017
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