SAP Note 712624 - High CPU consumption by Oracle

Component : Oracle -

Solution : https://service.sap.com/sap/support/notes/712624 (SAP Service marketplace login required)

Summary :
The SAP Note addresses high CPU usage issues linked with Oracle processes in SAP environments. It describes scenarios under which high CPU consumption is normal and symptoms indicating potential problems. The note lists numerous potential causes of high CPU loads, such as intensive SQL operations, parallel queries, specific database functions, and system configurations that may lead to increased CPU demands. Solutions provided include optimizing SQL statement executions, monitoring tools setup, system parameter adjustments, and infrastructure reviews. Effective diagnosis and management of high CPU usage involve a comprehensive understanding of Oracle sessions, transaction codes like ST06 and ST04, and the evaluation of system health through AWR reports.

Key words :
customer component bc-db-ora oracle priority recommendations / additional info category, oracle mutexes 923919   advanced oracle block checking features 913247   performance problems due, 923919   advanced oracle block checking features 1028099   long import runtimes, ora-4031 errors 502782   composite sap note ora-4030 360438   sap relevant patches, long data restriction 1436352   oracle database 11g advanced compression, db hints 515080   importing support packages hangs, sparc 1436352   oracle database 11g advanced compression, sap notes 1818320   oracle 11g advanced compression, sap systems 502782   composite sap note ora-4030 505246, sap systems 1227227   sql statement runs endlessly

Related Notes :

1818320Oracle 11g Advanced Compression for LONG data restriction
1436352Oracle Database 11g Advanced Compression for SAP Systems
1227227SQL statement runs endlessly or times out (kkompr)
1093485Long parsing times on Oracle
1043381Long update runtimes if index located in ASSM tablespace
1037755Performance problems with ASSM tablespaces
1028099Long import runtimes for large db_cache_size
1013912FAQ: Oracle BW performance
986536High CPU consumption on Oracle 10g
964344FAQ: Oracle mutexes
923919Advanced Oracle block checking features
913247Performance problems due to open changes
896717Problems with tables in ASSM tablespaces
881083Blocking factors on Oracle-based systems
871455Poor performance when accessing DBA and V$ views
846364Parse of star query may spin
793113FAQ: Oracle I/O configuration
789011FAQ: Oracle memory areas
767414FAQ: Oracle latches
766349FAQ: Oracle SQL optimization
745639FAQ: Oracle enqueues
697483Oracle Dynamic SGA on Solaris
651060FAQ: Oracle Parallel Execution
634263Selects with FOR ALL ENTRIES
626172Performance problems with Outer Join queries in Oracle 9.2
619876Oracle9i: Automatic PGA Memory Management
619188FAQ: Oracle wait events
618868FAQ: Oracle performance
617416Oracle9i: Dynamic SGA
613872Oracle traces with ORADEBUG
603041High CPU consumption and AWE
550585SAP relevant patches for Solaris 9 on SPARC
545932Performance probl. in CO-PC-OBJ period-end closing: DB hints
515080Importing Support Packages hangs. Work process with SEM -17
505246Several ora-600 [12333] and ora-4031 errors
502782Composite SAP Note ora-4030
360438SAP relevant patches for Solaris 8 on SPARC
176754Problems with CBO and RBO
138639Poor DML performance with Oracle DDIC statistics
772497FAQ: Oracle Hints