Topic: Database Administration >> checkpoint
|
Disclaimer: The purpose of all dbapool forums including OCP and Other Oracle Certification forums is to help each other with specific issues but not to share dump and copyrighted exam content, materials or intellectual property.
You may review the entire Oracle Certification Program Candidate Agreement online Here.
|
|
|
|
| sai |
Posted: Jul 17, 2007 05:50:42 PM |
Total Post: 14
Joined: May, 2007
|
How do we check the checkpoint frequency?
Is it thru log_chkpt_true_alert parameter which records checkpoint info in alert_log file?
Correct me if i am wrong? |
|
|
 Ratnaker |
| Posted: Jul 23, 2007 07:32:39 AM |  |
|
Total Post: 136
Joined: Apr, 2007
|
Frequent checkpointing writes dirty buffers to the datafiles more often than otherwise, and so reduces cache recovery time in the event of an instance failure. If checkpointing is frequent, then applying the redo records in the redo log between the current checkpoint position and the end of the log involves processing relatively few data blocks. This means that the cache recovery phase of recovery is fairly short.
However, in a high-update system, frequent checkpointing can reduce runtime performance, because checkpointing causes DBWn processes to perform writes
|
|
|
|
|
| Time Zone: EDT |
Send this thread to your friend |
|
|
|
|
Forum Rules & Description
Who Can Read The Forum? Any registered user or guest
Who Can Post New Topics? Any registered user
Who Can Post Replies? Any registered user
|
| |
Get FREE Magazines
|
Top 10 Forum User
|
| Murtuja Khokhar | 814 |
| Mohammed Taj | 694 |
| Jayanta Sur | 479 |
| Vigyan Kaushik | 386 |
| positive fanatic | 361 |
| Gitesh Trivedi | 322 |
| Gopu Gopi | 239 |
| neeraj sharma | 228 |
| Ramesh Jois | 226 |
| snehalatha p | 169 |
|
|
