Database Tuning (MOSC)

MOSC Banner

performance degraded due to "resmgr:cpu quantum" event

edited Jun 13, 2018 2:33PM in Database Tuning (MOSC) 3 comments

We had severe performance degrade today due to resmgr:cpu quantum event. High CPU usage is seen and we had bounce the DB.

My DB version is 11.2.0.2 (Patch 16) on Windows 2008 R2 64 bit and we have instance caging enabled on the server. Both production and training databases are running on the same box. Parameters we setup for the instance caging are: 1. CPU_COUNT ( 5 to production and 3 to training)  2. resource_manager_plan = DEFAULT_PLAN

We have upgraded the database from 11.2.0.1 last week end and instance caging is enabled since 3 months, no issues so far.

I see the "resmgr:cpu quantum" top event (95 to 100% DB usage) during the hand.

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

Instructions for posting

×

1. Select a discussion category from the picklist.


2. Enter a title that clearly identifies the subject of your question.


3. In the body, insert detailed information, including Oracle product and version.


Please abide by the Oracle Community guidelines and refrain from posting any customer or personally identifiable information (PI/CI).


Cloud / Fusion customers - Our Cloud community has moved! Please go to Cloud Customer Connect .


New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center