Statpack report

Question

Hi,
i have applicated the spreport.sql for having a report on my server in slow state,
in the "Top 5 Timed Events" the event :
Avg
Total Wait wait Waits
Event Waits Timeouts Time (s) (ms) /txn
log buffer space 1,195 140 436 365 -0.0
it mean that:
1- The buffer for logfiles is too small
2- Or the acces on disk is too long for the location of logfiles .
For 1-
The value for log_buffer is 524288 is it too small, if i increase it, are there any impacts on other parameters.
For 2-
We are on RAID 5 and we have not other possibilities.
Regards.

Answer 1

you are right Tom. It was an error in the last report.
That 's the new one:
Snap Id Snap Time Sessions Curs/Sess Comment
Begin Snap: 4 21-Apr-06 08:00:17 38 3.9
End Snap: 5 21-Apr-06 08:40:13 95 3.7
Elapsed: 39.93 (mins)
Cache Sizes (end)
~~~~~~~~~~~~~~~~~
Buffer Cache: 1,920M Std Block Size: 8K
Shared Pool Size: 336M Log Buffer: 512K
Load Profile
~~~~~~~~~~~~ Per Second Per Transaction
Redo size: 14,185.35 5,237.00
Logical reads: 2,769.19 1,022.34
Block changes: 79.48 29.34
Physical reads: 73.84 27.26
Physical writes: 9.06 3.35
User calls: 33.02 12.19
Parses: 48.71 17.98
Hard parses: 6.12 2.26
Sorts: 5.94 2.19
Logons: 0.07 0.03
Executes: 49.80 18.39
Transactions: 2.71
% Blocks changed per Read: 2.87 Recursive Call %: 89.94
Rollback per transaction %: 3.41 Rows per Sort: 923.06
Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 99.98 Redo NoWait %: 100.00
Buffer Hit %: 97.42 In-memory Sort %: 100.00
Library Hit %: 95.58 Soft Parse %: 87.44
Execute to Parse %: 2.19 Latch Hit %: 99.77
Parse CPU to Parse Elapsd %: 4.91 % Non-Parse CPU: 55.12
Shared Pool Statistics Begin End
Memory Usage %: 79.12 95.73
% SQL with executions>1: 7.38 5.37
% Memory for SQL w/exec>1: 9.70 8.16
Top 5 Timed Events
~~~~~~~~~~~~~~~~~~ % Total
Event Waits Time (s) Ela Time
latch free 25,565 1,743 54.01
db file sequential read 48,535 560 17.35
db file scattered read 10,692 528 16.38
CPU time 187 5.81
buffer busy waits 1,294 69 2.13
Thanks for any suggestion.