CPU usage calculation for AWR report

We took an AWR snapshot and CPU time ranked number 1 in the Top 5 timed events .
How do i calculate the CPU usage during the snap Interval?
Details about CPU TIME from TOP 5 timed events
Event - CPU time
Waits - Blank
Time(s)- 1,877
Avg Wait(ms) - Blank
% Total Call Time - 92.3
Wait Class - BlankThe snap shot period (interval) was 30 minutes (Mentioned as ELAPSED after "Begin Snap" and "End Snap" at the beginning of the AWR report)

try something like this:
SELECT end_time, instance_number, metric_name, AVERAGE, MAXVAL, STANDARD_DEVIATION
FROM dba_hist_sysmetric_summary
WHERE metric_name LIKE 'Host CPU Utilization (%)'
AND snap_id = <&snap_id
/

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Message was edited by: Patrick Rieken

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Oracle : 10.2.0.3
OS : AIX 5300-12-02
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~~~~~~~~~~~~~~~~~~ wait Call
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Hi,
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col status format a1 trunc
col module format a20
col username format a15
col logontime format a12
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union
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Hi All,
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1. Declaring an variable
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SET SERVEROUTPUT ON
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Nikolay
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Hi
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west                 50
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Hi Abhi,
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Region 1         North        200
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Regards
Sunil
Edited by: sunilkumar.k on Mar 5, 2012 4:21 AM

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Did the sharing and unsharing of screen stabilise your CPU usage? I also tried deleting the Library/Caches/com.skype* directory and whilst it helped initially, in the long run it did not work. The only thing that worked for me was sreen share and unshare.
Personally I am just getting more and more disappointed with OS X. The way they have implemented HiDPI support with scaling (downscaling and then upscaling) is just insane and a lot of applications struggle. I am sure this is not the root cause of the high CPU usage issue for Skype. It's not long before I come off the Apple ecosystem altogether.

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Did the sharing and unsharing of screen stabilise your CPU usage? I also tried deleting the Library/Caches/com.skype* directory and whilst it helped initially, in the long run it did not work. The only thing that worked for me was sreen share and unshare.
Personally I am just getting more and more disappointed with OS X. The way they have implemented HiDPI support with scaling (downscaling and then upscaling) is just insane and a lot of applications struggle. I am sure this is not the root cause of the high CPU usage issue for Skype. It's not long before I come off the Apple ecosystem altogether.

CPU usage calculation for AWR report

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