oracle database performance monitoring scripts

Tags: Oracle performance optimization Oracle Optimization training Oracle Database Optimization Oracle Database Performance Tuning

Today we will mainly introduce how to optimize the database to greatly improve the performance of Oracle. Below we will introduce several simple steps to greatly improve the performance of Oracle, the image of Walmart is like the three axes of

The authoritative Performance Testing Organization TPC was confirmed on December 3, United States time, the SPARCT3-4Supercluster submitted by Oracle one day before to TPC (number of transactions processed per minute) 30249 Authoritative Performance Testing Organization TPC was confirmed on December 3, us time, Oracle

In many cases, when the application administrator notifies us that the application is very slow and the database is very slow, we also find the same problem when performing the Select statements in the database for several examples, sometimes we will not be able to get started, because we believe that the various life-saving rates of the database meet the recomme

A colleague creates an instance on Oracle 10g, and at the end of the page, an error pops up, prompting for a failed listener. View the service without generating a listening service. So I deleted it, tried it several times, and so on.It's really upsetting. The hint says port 1521, is this port occupied? With the Netstat-aon command looked down, and did not. And there is no place to set up the port during the creation of the instance.Later, the net man

connecting Oracle with PHP4 should be improved. But under Linux, because I did not install Oracle, I only tested MySQL performance. Oracle is said to perform well under Linux, but it is impossible to test. And we put all the code for the database connection and

In many cases, when the application administrator notifies us that the application is slow and the database is slow, when we go to the database, we do a few examples of select and find the same problem, sometimes we will not be able to start, because we believe that the various life-saving rates of the database are all to meet the recommendations of the

Database performance exception and slowness caused by full archiving of Oracle logs When the database performance is abnormal and slow due to full archiving of Oracle logs, I did not view the alarm log and thought it was because t

The ORACLE tutorial is: Oracle acquires TimesTen to improve database software performance. Oracle announced in June 9 that it had agreed to acquire TimesTen, a private software company whose products can improve the performance of

Parallel recovery of large oracle transactions leads to database performance degradation-high cpu usage-processing ideas parallel recovery of large oracle transactions leads to database performance degradation-high cpu usage proce

As we all know,TableInOracle DatabaseIn addition, fragmentation has a great obstacle to Oracle database space management. At the same time, if the disk space in the segment is large, it will also affect the database performance. Although the local hosted tablespace technology is adopted in Oracle10G, it can eliminate t

-based Database recovery11th: Diagnostic and response data failure three (perform physical block recovery, perform rman recovery, perform table space point-in-time recovery, perform table and table partition Recovery)Performing data Block physical recoveryPerforming Rman Recovery: Advanced scriptingPerform point-in-time table space recoveryRecovering tables with Rman backup sets12th: Optimizing Rman PerformancePurpose of Rman

Database cache and Pin for Oracle performance optimization. Oracle allocates an additional 250 bytes of memory for each cursor to store some administrative information. The second subquery is to calculate the current Database cache and Pin for

Oracle database(*) PGA composition structure and related data dictionary(*) Soft parsing and hard parsing(*) Set the initial value of the PGATenth. Optimizing temporary space(*) What is temporary data(*) Best practices for managing temporal tablespace(*) Monitoring temporary tablespace(*) Use temporary tablespace groups11th. Impact Optimization Program(*) Optim

time required for recovery and reduces the performance of the system during running. LGWR writes logs to each log group cyclically. When a log group is full, the oracle server must perform a Checkpoint, which means: DBWn writes all or part of the dirty data blocks covered by the corresponding log into the data file; CKPT updates the data file header and control file. If DBWn does not complete the operation

Today, we are doing an experiment with records/s inserted into the Oracle database. Both servers locally copy a million record table to another table with the same structure. One server took 12 s and the other one took nearly 2 minutes. Generate an AWR report during insertion in Em. With the help of eygle, it is found that the database

Improve the import performance of the Oracle Database System Source: http://www.info365.com.cn/ Author: Qiu Xiaoli> AbstractThis article focuses on system-level changes, init. this article describes how to improve the performance of the impo

Author: Brent Oracle database is favored by more and more enterprises because of its high reliability, security and compatibility. How to keep Oracle databases in good performance is a concern for many database administrators and may be considered in the following ways, base

onDECLARElat INTEGER;ioPS INTEGER;Mbps INTEGER;BEGINDbms_resource_manager.Calibrate_io (+, IOPS, Mbps, LAT); Dbms_output.Put_Line (' max_iops = ' | | iops); Dbms_output.Put_Line (' latency = ' | | | lat); dbms_output.put_line (' max_mbps = ' | | mbps);end;/Note:Num_physical_disksParameters can be set large, if set too small, will affect the test results. When the value exceeds a certain limit, the estimated IO performance value will no longer change.

Today is. I/o throughput is one of the factors that affect data redo. oracle media recovery depends on I/o, if I/o has a bottleneck, it will inevitably affect the restoration of the media in the slave database. I/o stack contains hbas, storage related switches, and storage physical disks. Therefore, it is recommended that I/o be verified during application deployment in