What do you make of this?
- From: Paul Baumgartel <paul.baumgartel@xxxxxxxxx>
- To: "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 9 Sep 2005 12:18:28 -0400
Hi, all. Oracle10g (10.1.0.4.0) on Windows 2000.
I have a set of traces that are puzzling. I had the traces done in
controlled conditions, with a single user on the database; CPU usage on the
DB server was less than 25%. This statement is a good example of what I'm
trying to figure out. There's a high ratio of elapsed to CPU on the parse,
but not much in the way of wait information--except the SQL*Net message from
client. The client is a COM+ application server. No recent changes that I
know of on that machine, nor on the DB server itself. I have inspected the
raw trace file as well and don't see anything to suggest that the tkprof
timing summaries are incorrect.
II'm looking for ideas on how to go about diagnosing the SQL*Net waits
(assuming they're accounting for the different between CPU and elapsed) or
finding where the rest of the elapsed time comes from. Thanks in advance for
any suggestions!
UPDATE VALIDKEYS SET LASTACCESS = :V00001
WHERE
VALIDKEYS_PK = :V00002
call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ----------
----------
Parse 198 0.46 2.72 0 0 0 0
Execute 99 0.12 0.49 0 297 396 99
Fetch 0 0.00 0.00 0 0 0 0
------- ------ -------- ---------- ---------- ---------- ----------
----------
total 297 0.59 3.22 0 297 396 99
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 12492
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 381 0.00 0.00
SQL*Net message from client 381 0.01 0.51
log file sync 1 0.00 0.00
********************************************************************************
--
Paul Baumgartel
paul.baumgartel@xxxxxxxxxxxx
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