RE: CPU USAGE

This would be expected if one process (for example an rman channel) was using a lot of cpu while other processes had minimal activity. The first thing I would do is just check top while they see the high activity on the single cpu to see if you have one process claiming a lot of cpu and then see what it is doing.

Jay Miller
Sr. Oracle DBA
201.369.8355

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Nagaraj chk Sent: Wednesday, May 23, 2018 1:31 PM
To: Niall Litchfield
Cc: oracle-l
Subject: Re: CPU USAGE

Yes it high cpu usage is always on single core. CPU usage is measured using aternity tool ,of 32 cores assigned the report shows only one core is utilizing more.

On Tue, May 22, 2018 at 11:36 PM, <niall.litchfield_at_gmail.com<mailto:niall.litchfield_at_gmail.com>> wrote: Do you mean it's always the *same* core, or at any time no more than 1 core in total? How are you determining the cpu usage?

On Tue, 22 May 2018, 19:01 Nagaraj chk, <nagaraj.chk_at_gmail.com<mailto:nagaraj.chk_at_gmail.com>> wrote: Dear Gurus,

We observed, oracle database using only on CPU Core during business time around 90% when compared to other cpus on the server. on the server total 32 cpus assigned ,but only one cpu is getting used ,please advise what can be the possible reasons.

-Naga

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http://www.freelists.org/webpage/oracle-l Received on Wed May 23 2018 - 19:43:52 CEST