SCM optimizer CPU utilization mostly 0%

Hello All,
My SAP and DB are running on the same host. And its an SCM 5.0 system.
I observed that the idle time is always 100% for the optimizer.
Can anyone please elaborate the role of this optmizer and why the idle time is always 100.
for my SCM system, the CPU utlization keeps varying which is normal, but i dont get the role of optmizer.
Please let me know.
BR
Prashanth chikbala

Thanks a lot again for the reply.
I have checked in /sapapo/opt11 and I am able to see only SNP related logs however the status are in yellow and when I click the log buttun it throws a pop with a message that "no log exist".
And in SM59, under TCP/IP i can see 4 rfc connections (OPTSERVER_SNP01, OPTSERVER_SNP02, OPTSERVER_DPS01, OPTSERVER_DPS02) and for all these connection test is working successfully.
So from this can I canclude that the planning method are not being used and for that reason CPU Utilization is 0%?
Best Regads,
Prashanth Chikbala

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Hi all.
We've recently been performance tuning our java application running
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Hi,
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Andy
[email protected] (feanor73) wrote:
Hi all.
We've recently been performance tuning our java application running
inside of an Application Server with Java 1.3.1 Hotspot -server. We've
begun to notice some odd trends and were curious if anyone else out
there has seen similiar things.
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Here's the hardware information:
Intel -> 2 processors (32bit) at 867 MHz and 2 Gig RAM
Solaris -> 2 processors (64bit) at 450 MHz and 2 Gig RAM.
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fast on Intel. The only exception is some of our use-cases that are
heavily dependent on a stored procedure which runs twice as fast on
Solaris. The database (oracle 8i) and the app server run on the same
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issue. We set the max heap at 1024 MG. We tried the various solaris
threading models as recommended, but they have accomplished little.
It is possible our Solaris machine is not configured properly in some
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threaded at
this stage]. I would except the solaris CPU utilization to be around
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Edited by: user9292816 on May 9, 2011 4:35 AM

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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))
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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#")
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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
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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
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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

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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

Poor Rendering CPU utilization

Hi,
I just got my brand-new PC including a Intel Core i7 920 and ASUS P6T Deluxe V2 Motherboard running on Windos 7 RC. I created a demo project and exported a sequence to 1920i m2v format. I was very disappointed that the CPU utilization during the rendering process was only 20-25%. Same with rendering for preview within premiere itself. Is there any way to improve this?
- Stefan

Could there be a mistake somewhere? I ran the Sandra benchmark on physical disks and got these results:
With 6.00 ms access time your access time would be the same as a 15K SCSI-3 disk.
All the SATA disks, including my Areca raid show access times around 13 to 16 ms.
BTW, Sandra gave my raid a drive index of 1479 MB/s. It shows that interpreting these results from different benchmarks it a difficult job. The results vary so much between programs. For instance:
SANDRA:      1479 MB/s, but indicates the size correctly as 10 TB
HD Tune Pro:   745 MB/s, but indicates the size INcorrectly as 2199 GB
HD Tach:         802 MB/s
all on the same raid array. The same applies to access times, with Sandra 13.2 ms, with HD Tune Pro 9.1 ms. All my single SATA disks show around 13.5 ms access time in HD Tune Pro. The drive index for single disks do not vary as much, both Sandra and HD Tune Pro show around 91 MB/s.
From what I have seen it looks like HD Tune Pro is the most representative benchmark for disk performance, more so than Sandra.

3560 CPU utilization constantly showing 87%

hello, we are using a 3560 switch and the cpu utilization is constantly showing 87 %.
This switch is doing routing and leased lines are connected to service providers.
Is there any trouble shooting steps that can be done?
Regards,
Shiva

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Posting
Inayath's document is nice, and in it he mentions show tcam utilization. If your TCAM overlfows, some packet forwarding will be done in CPU. So, that's an important check; insure you're using the most suitable SDM template.

SCM optimizer CPU utilization mostly 0%

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