Heavu CPU Utilization of Dictionary Query - After 9i to 10g Upgrade

Hi Friends,
We have migrated our production DB from Oracle 9i(Windows) to Oracle 10g(AIX) and after that a heavy cpu utilization query is coming frequently and hence many timeouts are happening in the application.
Application is connecting to the database through Java Application (JDBC).
Once the application service is started, below query is invoked and CPU takes around 20% continuously.
The interesting thing is this query is not owned by the application schema but by SYS and it's invoked from Application Schema.
We have raised an SR but still no luck.
Any help will be very much appreciated.
SELECT -- Packaged procedures with no arguments package_name AS procedu
re_cat, owner AS procedure_schem, object_name AS procedure_name, NULL
, NULL, NULL, 'Packaged procedure' AS remarks, 1 AS procedure_type
FROM all_arguments WHERE argument_name IS NULL AND data_type IS NULL AN
D package_name LIKE :3 ESCAPE '/' AND owner LIKE :4 ESCAPE '/' AND obje
ct_name LIKE :5 ESCAPE '/' UNION ALL SELECT -- Packaged procedures with a
rguments package_name AS procedure_cat, owner AS procedure_schem, obj
ect_name AS procedure_name, NULL, NULL, NULL, 'Packaged procedure'
AS remarks, 1 AS procedure_type FROM all_arguments WHERE argument_name IS
NOT NULL AND position = 1 AND position = sequence AND package_name L
IKE :3 ESCAPE '/' AND owner LIKE :4 ESCAPE '/' AND object_name LIKE :5
ESCAPE '/' UNION ALL SELECT -- Packaged functions package_name AS proce
dure_cat, owner AS procedure_schem, object_name AS procedure_name, NU
LL, NULL, NULL, 'Pa
Regards,
Savad

Pl do not post duplicate threads - Heavy CPU Utilization of Dictionary Query - After 9i to 10g Upgrade
Srini

Similar Messages

Heavy CPU Utilization of Dictionary Query - After 9i to 10g Upgrade

Hi Friends,
We have migrated our production DB from Oracle 9i(Windows) to Oracle 10g(AIX) and after that a heavy cpu utilization query is coming frequently and hence many timeouts are happening in the application.
Application is connecting to the database through Java Application (JDBC).
Once the application service is started, below query is invoked and CPU takes around 20% continuously.
The interesting thing is this query is not owned by the application schema but by SYS and it's invoked from Application Schema.
We have raised an SR but still no luck.
Any help will be very much appreciated.
SELECT -- Packaged procedures with no arguments package_name AS procedu
re_cat, owner AS procedure_schem, object_name AS procedure_name, NULL
, NULL, NULL, 'Packaged procedure' AS remarks, 1 AS procedure_type
FROM all_arguments WHERE argument_name IS NULL AND data_type IS NULL AN
D package_name LIKE :3 ESCAPE '/' AND owner LIKE :4 ESCAPE '/' AND obje
ct_name LIKE :5 ESCAPE '/' UNION ALL SELECT -- Packaged procedures with a
rguments package_name AS procedure_cat, owner AS procedure_schem, obj
ect_name AS procedure_name, NULL, NULL, NULL, 'Packaged procedure'
AS remarks, 1 AS procedure_type FROM all_arguments WHERE argument_name IS
NOT NULL AND position = 1 AND position = sequence AND package_name L
IKE :3 ESCAPE '/' AND owner LIKE :4 ESCAPE '/' AND object_name LIKE :5
ESCAPE '/' UNION ALL SELECT -- Packaged functions package_name AS proce
dure_cat, owner AS procedure_schem, object_name AS procedure_name, NU
LL, NULL, NULL, 'Pa
Regards,
Savad
Edited by: user9292816 on May 9, 2011 4:35 AM

Hi,
We couldn't find anything in the alert log related to this.
But we have taken the explain plan from both DBs as shown below.
PLan of the Query in Oracle 9.2.0.8(Windows - Old DB )
SQL> select * from table(dbms_xplan.display());
| Id | Operation | Name | Rows | Bytes | Cost |
| 0 | SELECT STATEMENT | | | | |
| 1 | SORT ORDER BY | | | | |
|* 2 | FILTER | | | | |
|* 3 | TABLE ACCESS BY INDEX ROWID | ARGUMENT$ | | | |
| 4 | NESTED LOOPS | | | | |
| 5 | NESTED LOOPS | | | | |
| 6 | TABLE ACCESS BY INDEX ROWID| USER$ | | | |
|* 7 | INDEX RANGE SCAN | I_USER1 | | | |
| 8 | TABLE ACCESS BY INDEX ROWID| OBJ$ | | | |
|* 9 | INDEX RANGE SCAN | I_OBJ2 | | | |
|* 10 | INDEX RANGE SCAN | I_ARGUMENT2 | | | |
|* 11 | FIXED TABLE FULL | X$KZSPR | | | |
|* 12 | TABLE ACCESS BY INDEX ROWID | OBJAUTH$ | | | |
| 13 | NESTED LOOPS | | | | |
| 14 | FIXED TABLE FULL | X$KZSRO | | | |
|* 15 | INDEX RANGE SCAN | I_OBJAUTH2 | | | |
Predicate Information (identified by operation id):
2 - filter("SYS_ALIAS_1"."OWNER#"=:B1 OR EXISTS (SELECT /*+ */ 0 FROM
"X$KZSPR" "X$KZSPR" WHERE "X$KZSPR"."INST_ID"=:B2 AND
((-"X$KZSPR"."KZSPRPRV")=(-144) OR (-"X$KZSPR"."KZSPRPRV")=(-141))) OR EXISTS
(SELECT 0 FROM "SYS"."OBJAUTH$" "OBJAUTH$","X$KZSRO" "X$KZSRO" WHERE
"OBJAUTH$"."OBJ#"=:B3 AND "OBJAUTH$"."GRANTEE#"="X$KZSRO"."KZSROROL" AND
"OBJAUTH$"."PRIVILEGE#"=12))
3 - filter(("A"."ARGUMENT" LIKE :Z ESCAPE '/' OR "A"."ARGUMENT" IS NULL AND
DECODE("A"."TYPE#",0,NULL,1,DECODE("A"."CHARSETFORM",2,'NVARCHAR2','VARCHAR2'),2,
DECODE("A"."SCALE",(-127),'FLOAT','NUMBER'),3,'NATIVE
INTEGER',8,'LONG',9,DECODE("A"."CHARSETFORM",2,'NCHAR
VARYING','VARCHAR'),11,'ROWID',12,'DATE',23,'RAW',24,'LONG
RAW',29,'BINARY_INTEGER',69,'ROWID',96,DECODE("A"."CHARSETFORM",2,'NCHAR','CHAR')
,102,'REF CURSOR',104,'UROWID',105,'MLSLABEL',106,'MLSLABEL',110,'REF',111,'REF',
112,DECODE("A"."CHARSETFORM",2,'NCLOB','CLOB'),113,'BLOB',114,'BFILE',115,'CFILE'
,121,'OBJECT',122,'TABLE',123,'VARRAY',178,'TIME',179,'TIME WITH TIME
ZONE',180,'TIMESTAMP',181,'TIMESTAMP WITH TIME ZONE',231,'TIMESTAMP WITH LOCAL
TIME ZONE',182,'INTERVAL YEAR TO MONTH',183,'INTERVAL DAY TO SECOND',250,'PL/SQL
RECORD',251,'PL/SQL TABLE',252,'PL/SQL BOOLEAN','UNDEFINED') IS NOT NULL) AND
DECODE("A"."PROCEDURE$",NULL,NULL,"SYS_ALIAS_1"."NAME") LIKE :Z ESCAPE '/' AND
NVL("A"."PROCEDURE$","SYS_ALIAS_1"."NAME") LIKE :Z ESCAPE '/')
7 - access("U"."NAME" LIKE :Z ESCAPE '/')
filter("U"."NAME" LIKE :Z ESCAPE '/')
9 - access("SYS_ALIAS_1"."OWNER#"="U"."USER#")
10 - access("SYS_ALIAS_1"."OBJ#"="A"."OBJ#")
11 - filter("X$KZSPR"."INST_ID"=:B1 AND ((-"X$KZSPR"."KZSPRPRV")=(-144) OR
(-"X$KZSPR"."KZSPRPRV")=(-141)))
12 - filter("OBJAUTH$"."PRIVILEGE#"=12)
15 - access("OBJAUTH$"."GRANTEE#"="X$KZSRO"."KZSROROL" AND
"OBJAUTH$"."OBJ#"=:B1)
Note: rule based optimization
PLan of the Query in Oracle 10.2.0.5.3(AIX - New DB )
?PLAN_TABLE_OUTPUT
Plan hash value: 2991281545
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 109 | 451 (3)| 00:00:06 |
| 1 | SORT ORDER BY | | 1 | 109 | 451 (3)| 00:00:06 |
|* 2 | FILTER | | | | | |
|* 3 | HASH JOIN | | 3 | 327 | 450 (3)| 00:00:06 |
|* 4 | HASH JOIN | | 12 | 1128 | 448 (3)| 00:00:06 |
|* 5 | TABLE ACCESS FULL | ARGUMENT$ | 4821 | 291K| 259 (3)| 00:00:04 |
| 6 | TABLE ACCESS FULL | OBJ$ | 56329 | 1760K| 187 (2)| 00:00:03 |
| 7 | TABLE ACCESS BY INDEX ROWID| USER$ | 6 | 90 | 2 (0)| 00:00:01 |
|* 8 | INDEX RANGE SCAN | I_USER1 | 2 | | 1 (0)| 00:00:01 |
|* 9 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 |
| 10 | NESTED LOOPS | | 2 | 50 | 2 (0)| 00:00:01 |
|* 11 | INDEX RANGE SCAN | I_OBJAUTH1 | 1 | 12 | 2 (0)| 00:00:01 |
|* 12 | FIXED TABLE FULL | X$KZSRO | 2 | 26 | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - filter("OWNER#"=USERENV('SCHEMAID') OR EXISTS (SELECT 0 FROM SYS."X$KZSPR"
"X$KZSPR" WHERE ((-"KZSPRPRV")=(-144) OR (-"KZSPRPRV")=(-141)) AND
"INST_ID"=USERENV('INSTANCE')) OR EXISTS (SELECT 0 FROM "SYS"."OBJAUTH$"
"OBJAUTH$",SYS."X$KZSRO" "X$KZSRO" WHERE "GRANTEE#"="KZSROROL" AND "OBJ#"=:B1 AND
"PRIVILEGE#"=12))
3 - access("O"."OWNER#"="U"."USER#")
4 - access("O"."OBJ#"="A"."OBJ#")
filter(NVL("A"."PROCEDURE$","O"."NAME") LIKE :2 ESCAPE '/' AND
DECODE("A"."PROCEDURE$",NULL,NULL,"O"."NAME") LIKE :3 ESCAPE '/')
5 - filter("A"."ARGUMENT" LIKE :5 ESCAPE '/' OR "A"."ARGUMENT" IS NULL AND
DECODE("A"."TYPE#",0,NULL,1,DECODE("A"."CHARSETFORM",2,'NVARCHAR2','VARCHAR2'),2,DECO
DE("A"."SCALE",(-127),'FLOAT','NUMBER'),3,'NATIVE
INTEGER',8,'LONG',9,DECODE("A"."CHARSETFORM",2,'NCHAR
VARYING','VARCHAR'),11,'ROWID',12,'DATE',23,'RAW',24,'LONG
RAW',29,'BINARY_INTEGER',69,'ROWID',96,DECODE("A"."CHARSETFORM",2,'NCHAR','CHAR'),100
,'BINARY_FLOAT',101,'BINARY_DOUBLE',102,'REF
CURSOR',104,'UROWID',105,'MLSLABEL',106,'MLSLABEL',110,'REF',111,'REF',112,DECODE("A"
."CHARSETFORM",2,'NCLOB','CLOB'),113,'BLOB',114,'BFILE',115,'CFILE',121,'OBJECT',122,
'TABLE',123,'VARRAY',178,'TIME',179,'TIME WITH TIME
ZONE',180,'TIMESTAMP',181,'TIMESTAMP WITH TIME ZONE',231,'TIMESTAMP WITH LOCAL TIME
ZONE',182,'INTERVAL YEAR TO MONTH',183,'INTERVAL DAY TO SECOND',250,'PL/SQL
RECORD',251,'PL/SQL TABLE',252,'PL/SQL BOOLEAN','UNDEFINED') IS NOT NULL)
8 - access("U"."NAME" LIKE :1 ESCAPE '/')
filter("U"."NAME" LIKE :1 ESCAPE '/')
9 - filter(((-"KZSPRPRV")=(-144) OR (-"KZSPRPRV")=(-141)) AND
"INST_ID"=USERENV('INSTANCE'))
11 - access("OBJ#"=:B1 AND "PRIVILEGE#"=12)
filter("PRIVILEGE#"=12)
12 - filter("GRANTEE#"="KZSROROL")
52 rows selected.
Regards,
Savad

Join Issues After 4i to 10g Upgrade

Hi,
We have noticed issues with folder joins after upgrading from 4i to 10g. These joins existed and worked as expected in 4i. But after the upgrade to 10g, reports will pull all data instead of limiting to the parameters.
For example, we have a order headers folder and invoice headers folder in a business area created from the database. The 2 folders have a join. If I create a report that pulls columns from both folders and then create parameters to limit the invoice creation date, it will pull all records from the database instead of limiting to the parameters.
Has anyone else experienced this issue? Can someone point me to some documentation that relates to the issue?
Any help is greatly appreciated!
Thanks,
Troy

Hi Troy,
I seem to remember that there is a difference in how 4i and 10g handle outer joins. There is also an issue associated with applying joins to different types of folders. Please send me a copy of the SQL generated from the "view SQL" function for this worksheet and I'll try to help you debug the issue. It would also be helpful if you could do this for 4i also.
--Srinu

Increase in CPU Utilization after migration from APEX 3.1.2 to APEX 3.2

Has any noticed any increase in CPU Utilization after migrating from APEX 3.1.2 to APEX 3.2?
Thanks,
Mark

Hi Mark,
Take a look at some of the usage reports within APEX (sessions, page views etc) to get an overall feel for where the time is being consumed.
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There's no magic answers here unfortunately, you need to track it down to where the time is being spent before working back up to find out where best to tune it.
John.
Blog: http://jes.blogs.shellprompt.net
Work: http://www.apex-evangelists.com
Author of Pro Application Express: http://tinyurl.com/3gu7cd
REWARDS: Please remember to mark helpful or correct posts on the forum, not just for my answers but for everyone!

DS6 instance reaches 50% CPU utilization after restart

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At Startup Directory Server does initialize some of its caches :
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What's the CU level you have for your Exchange 2013? Also, please check node runner processor as Node Runner process can cause CPU utilization issue. I would also suggest to check your disk IOPs as it looks like disk IOPs issue to me as well. Thanks.
Regards, Riaz Javed Butt | Consultant Microsoft Professional Services MCITP, MCITP (Exchange), MCSE: Messaging, MCITP Office 365 | mstechtalk.com

Increased CPU utilization on Sup1A after upgrade

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We have several similar switches throughout our network that we intend to upgrade as well, so are treating this one box as a testbed. We will soon deploy IP telephones to every desk in our network, and want to determine if this higher baseline utilization will be problematic for us.
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Performance degrading CPU utilization 100%

Hello,
RHEL 4
Oracle 10.2.0.4
Attached to a DAS (partition is 91% full) RAID 5
Over the past few weeks my production database performance has majorly degraded. I have not made any application, OS, or database changes (I was on vacation!). I have started troubleshooting, but need some more tips as to what else I can check.
My users run a query against the database, and for a table with only 40,000 rows, it will take about 2 minutes before the results return. For a table with 12 million records, it takes about 10 minutes or more for the query to complete. If I run a script that counts/displays a total record count for each table in the database as well as a total count of all records in the database (~15,000,000 records total), the script either takes about 45 minutes to complete or sometimes it just never completes. The Linux partition on my DAS is currently 91% full. I do not have Flashback or auditing enabled.
These are some things I tried/observed:
I shut down all applications/servers/connections to the database and then restarted the database. After starting the database, I monitored the DAS interface, and the CPU utilization spiked to 100% and never goes down, even with no users/application trying to connect to the database. The alert.log file contains these errors:
ORA-00603: ORACLE server session terminated by fatal error
ORA-00600: internal error code arguments: [ttcdrv-recursivecall]
ORA-03135: connection lost contact
ORA-06512: at "CTXSYS.SYNCRN", line 1
The database still starts, but the performance is bad. From the error above and after checking performance in EM, I see there are a lot of sync index jobs running by each of the schemas and the db sequential file read is high. There is a job to resync the indexes every 5 minutes. I am going to try disabling these jobs tihs afternoon to see what happens with the CPU utilization. If it helps, I will try adjusting the job from running every 5 minutes to something like every 30 minutes. Is there a way to defrag the CONTEXT indexes? REBUILD?
I'm not sure if I am running down the right path or not. Does anyone have any other suggestions as to what I can check? My SGA_TARGET is currently set to 880M and the SGA_MAX_SIZE is 2032M. Would it also help for me to increase the SGA_TARGET to the SGA_MAX_SIZE; thus increasing the amount of space allocated to the buffer cache? I have ASMM enabled and currently this is what is allocated:
Shared Pool = 18.2%
Buffer Cache = 61.8%
Large Pool = 16.4%
Java Pool = 1.8%
Other = 1.8%
I also ran ADDM and these were the results of my Performance Analysis:
34.7% The throughput of the I/O subsystem was significantly lower than expected (when I clicked on this it said to either implement ASM or stripe using SAME methodology...we are already using RAID5)
31% SQL statements consuming significant database time were found (I cannot make application code changes, and my database consists entirely of INSERT statements...there are never any deletes or updates. I see that the updates that are being made were by the index resyncing job to the various DR$ tables)
18% Individual database segments responsible for significant user I/O wait were found
15.9% Individual SQL statements responsible for significant user I/O wait were found
8.4% PL/SQL execution consumed significant database time
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Mimi
Edited by: Mimi Miami on Jul 25, 2009 10:22 AM

Tables/Indexes last analyzed today.
I figured out that it was the Oracle Text indexes synching to frequently that was causing the problem. I disabled all the jobs that kicked off those indexes and my CPU utilization dropped to almost 0%. I will work on tuning the interval/re-enabling the indexes for my dynamic datasources.
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Determine the CPU utilization

Guys,
I've been asked to determine the CPU utilization for the execution of my procedure performing a large ETL operation. (in an unix box)
Could someone help me out?..Is there an oracle query with which I can find the detail?
Thanks guys!!!
Regards,
Bhagat

Compare CPU statistics before and after proc execution. They are measured in 10s of milliseconds.
select sn.name, ms.value
from v$sesstat ms, v$statname sn
where ms.statistic# = sn.statistic#
and upper(sn.name) like '%CPU%'
and ms.sid = [proc session SID]Regards,
Dima
Edited by: DimaCit on Sep 5, 2008 11:14 AM

High CPU utilization with SQL Server 2005

Our company recently combined our DBs into one SQL 2005 Server.
Dell Power Edge 1800 with 3.00 GHz Xeon Processor 800 FSB, 1 GB of RAM
Dell Power Edge 1600 with 2.80 GHz Xeon Processor 533 FSB, 1 GB of RAM
Combined into one:
Dell Power Edge 2950 Dual Core 1.6 GHz Xeon Woodcrest Processor, 4 GB of RAM
However, the CPU utilization on this new server is maintaining at about 90% with 3.82 GB of RAM used as well. It's a Windows Server 2003 R2 x64 edition running SQL Server 2005 SP2 x64. I have searched around Microsoft's website for any information that could be of help to me, but I was unable to locate anything. I was hoping that someone could provide some insight as to why this might be occuring. Or if this is a known issue.
Thanks,
Peter

Hello!
Here are some steps to take after upgrading your SQL Server from 2K to 2K5. (This quote is from BOL)
After upgrading the Database Engine to SQL Server 2005, complete the following tasks:
Register your servers - Upgrade removes registry settings for the previous SQL Server instance. After upgrading, you must reregister your servers.
Repopulate full-text catalogs - The upgrade process marks your databases as full-text disabled. Catalogs must be repopulated, but this operation is not run automatically by Setup because it can be time-consuming. As this operation enhances the performance of your SQL Server 2005 installation, administrators should plan to repopulate full-text catalogs at a convenient time.
Update statistics - To help optimize query performance, we recommend that you update statistics on all databases following upgrade. Use the sp_updatestats stored procedure to update statistics in user-defined tables in SQL Server 2005 databases.
Update usage counters - In earlier versions of SQL Server, the values for the table and index row counts and page counts can become incorrect. To correct any invalid row or page counts, we recommend that you run DBCC UPDATEUSAGE on all databases following upgrade.
Configure your new SQL Server installation - To reduce the attackable surface area of a system, SQL Server 2005 selectively installs and activates key services and features. For more information on how to activate SQL Server 2005 features, see SQL Server Surface Area Configuration.
Source:
How to: Upgrade to SQL Server 2005 (Setup)
http://msdn2.microsoft.com/en-us/library/ms144267.aspx

Custom report for TOP 10 CPU Utilization machines from any group in aggregation last seven days

I want to create a custom report that contain list of TOP CPU Utilization of machines form any group.This report is create on last 7 days CPU utilization of all machine from a group.
What should be query for this report.

Hi,
Please refer to the links below:
SQL Query for TOP 10 Average CPU
https://social.technet.microsoft.com/Forums/systemcenter/en-US/8d9a2d0d-8761-4d1f-b194-b24aa65172e1/sql-query-for-top-10-average-cpu?forum=operationsmanagerreporting
How to use Report Builder to create custom reports in SCOM 2007
http://www.systemcentercentral.com/how-to-use-report-builder-to-create-custom-reports-in-scom-2007/
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

IWS 6.0 100% CPU utilization hanging- very urgent

Hi,
We are using Iplanet Web server 6.0 on windows-2000 SP2.The problem we are facing is after 10 concurrent users have logged in the CPU utilization shoots up to 100% and we have to reboot the systesm
Our billing Application is affected very much due to this.
Can anybody throw some light on this?
Thanks in advance.

Hi,
Are you using any plugin with iWS. Please let me know your config file. Mean while please check tunning parameters of solaris for Performance bench mark.
http://docs.iplanet.com/docs/manuals/enterprise/50/tuning/perf6.htm#17580
Regards,
Dakshin.

LMS 4.2.3 Server high CPU Utilization

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We are observing high CPU utilization on the lms server. tomcat is the process eating more than 1GB of the memory i checked from the task manager.
Server details:
device license : 100
windows server 2k8 R2, with 8gb physical memory.
anybody suggest what might be causing the issue.?? because of this performance reports were affected.
Regards,
Channa

Hi Channa,
log into dbreader using the following::
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or
https:// servername : 443/dbreader/dbreader.html
user Id is DBA
Database Name is upm
password :: user defined (by default password is c2ky2k)
1. Here is the query to get the pollerwise managed MIBObjects:
"select count (*), PollerName from Poller_Details_Table a,Poller_Definition_Table b where a.PollerId = b.PollerId and b.Poller_State NOT IN (1) Group by b.PollerName;"
2. Here is the query to get the total mibobject count for the active pollers
“select count (*) from Poller_Details_Table a,Poller_Definition_Table b where a.PollerId =
b.PollerId and b.Poller_State NOT IN (1);”
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Afroz
***Ratings Encourages Contributors ***

Hd tach - cpu utilization

I just wanted to share my findings in case anyone else is having this problem.
I've been running WinXP Pro for months, but last night while trying to figure out my freezing/rebooting problem I figured I'd run a Hard Drive benchmark to see my CPU Utilization.
http://www.tcdlabs.com/hdtach.htm
Hd Tach 2.61
After running it I found that my CPU utilization was 54% !!!! That's crazy.
I have MSI KT333 Ultra....newest via 4in1 drivers.
I looked and it was running at DMA 5, bus mastering was enabled in the bios. At this point I was confused, I tried switching cables...reinstalling drivers...looking for tweaks....no go.
Finally I noticed on Via's page:
http://www.viaarena.com/?PageID=66
They have "IDE Miniport Driver".....figured what the heck....installed it, rebooted, and BAM! my CPU Utilization is down to 9%....much better.
Thanks for reading my rant. I encourage some of you to try out this benchmark and see what you get.
Adios!

I don't think Speedfan gives you CPU Utilization during peak HD usage. That is something different.

Code for finding CPU utilisation for executing query

Hi, i need code for finding CPU utilisation for executing the particular query.

Use session tracing, then in trace file you can find cpu utilization for particular statement on each phase: parse, execute, fetch and the overall.
Or You can use the dbms_utility.get_cpu_time (if your database is 10g) in pl/sql:
declare
cpt1 pls_integer;
cpt2 pls_integer;
cputime pls_integer;
begin
cpt1:=sys.dbms_utility.get_cpu_time;
<some code here>
cpt2:=sys.dbms_utility.get_cpu_time;
cputime:=cpt2-cpt1;
end;
good luck

Heavu CPU Utilization of Dictionary Query - After 9i to 10g Upgrade

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