Solved

Can anybody tell me about these wait events

Posted on 2011-03-19
11
670 Views
Last Modified: 2012-05-11
direct path sync
direct path write
direct path read
db file sequential read & write
db file scattered read & write

i want a brief description on these wait events.


Thanks
0
Comment
Question by:irukulla
  • 4
  • 2
11 Comments
 
LVL 76

Expert Comment

by:slightwv (䄆 Netminder)
ID: 35173634
Have you checked the online docs?  They should have everything you need.

They can be found at www.oracle.com
0
 
LVL 74

Accepted Solution

by:
sdstuber earned 500 total points
ID: 35173998
"direct path sync"  isn't documented

I don't see "db file sequential write" or "db file scattered write" as events at all looking at v$event_name,  where are you seeing them?

the others can be found here...

http://download.oracle.com/docs/cd/E11882_01/server.112/e17110/toc.htm
0
 
LVL 4

Expert Comment

by:devind
ID: 35193101

All events for 11g are detailed at
http://download.oracle.com/docs/cd/B28359_01/server.111/b28320/waitevents003.htm

As far as direct path sync event is concerned it does not exists release 11.1.0.7
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 74

Expert Comment

by:sdstuber
ID: 35193997
devind,

Your post is simply an older version of the same document I already posted above.

Please read all prior posts to be sure you are contributing something unique.


Also,  "direct path sync" does exist in 11.1.0.7 and above as well as 10.2.0.5 but not 10.2.0.4 or lower
I don't know about the earlier releases of 11gR1 though.

as mentioned above check v$event_name  - it's a real event
and, also mentioned above, even though it's a real event,  it's not documented
0
 
LVL 76

Expert Comment

by:slightwv (䄆 Netminder)
ID: 35435013
I'm afraid I'll have to object to this request given the reason of "found answer".

Where did you find the answer?

0
 
LVL 74

Expert Comment

by:sdstuber
ID: 35511705
please accept the posts that helped or request additional information

"old question" is not a valid reason to delete
0
 
LVL 74

Expert Comment

by:sdstuber
ID: 35604731
I recommend http:#35173998

it explains where to find events in the data dictionary
identifies non-existent events
and provides link to source documentation for all other events  (for those that are documented)
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

How to Create User-Defined Aggregates in Oracle Before we begin creating these things, what are user-defined aggregates?  They are a feature introduced in Oracle 9i that allows a developer to create his or her own functions like "SUM", "AVG", and…
From implementing a password expiration date, to datatype conversions and file export options, these are some useful settings I've found in Jasper Server.
This video explains at a high level with the mandatory Oracle Memory processes are as well as touching on some of the more common optional ones.
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question