System cpu goes 50% to 100% process is oracle.exe

My server cpu goes high 50% to 100% and process is oracle.exe.Database is oracle8i and windows 2000 server.machine is dell power edge 2800.
problem is in oracle database or in machine or in os

It is difficult to guess
but most probably it is your Db which which may be causing
There may be so many reasons for this
It is happenig intermittently?
What is happening at the DB level during 100%?
Any batch process?
any Reporting ?
BAckup?

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My system CPU goes to 80%

My system CPU goes to 80% and then it gets really slow. and then i have to switch all the applications off and wait for a minute till it goes back down again.
I have a Mac Mini i5 chip from late 2012, 4gb ram and 500gb storage.

Hello,
Open Activity Monitor, Show:>All Processes, sort on CPU%, see if anything using too much CPU% when this happens & which App(s) or Processes are using it.
Also...
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts (Users & Groups in later OSX versions)>Login Items window to see if it or something relevant is listed. Or an errant process eating up RAM.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

FireFox CPU goes to 100% by backgroundshift

Sorry for my bad english..
Running a simple scrollroutine my cpu use is low :

Hello,
if you have your note for a year or more and did not take it for an internal heatsink clean and essentials parts, yet.
One possible problem here is: Heatsink blocked with dust (CPU goes to 100% state svchost takes all resources)
90% of the high temperatures problems, unexpected shutdowns, 100%CPU all the time without running background processes, very hot keyboard area, freezing programs, are caused by the heatsink blocked with dust.
The normal temperature for the processor is between 55C and 79C. For the motherboard is around 55C~60C. When the heatsink is blocked those temperatures can reach 99C (processor) and around 80C (motherboard). Measure in Celsius degrees.
You can check it out how "hot" your Qosmio is.
Download the Everest ultimate 2006 edition V 3.50.761, look for it with Google search.
Run it and see the temperatures for CPU, Processor and motherboard on your Qosmio:
See:
http://www.rabayjr.com/vista/qosmioeverest.jpg
Run the System stability test (find it under tools menu) for 10 minutes aprox.
Watch the temperatures at taskar. If it reachs more than 92C for the processor on stress mode, its time to clean the heatsink and all essential parts of your Qosmio. Attempt to the processor fan RPM, too, if they run fast and noisy, you really must perform a clean.
But it depends on the ambient environment, for a 30C summer day the processor temperature almost get the 90C. this is normal in stress mode. And the fans run without noise. Slow RPM mode.
All measured in Celsius degrees, for Farenheith please convert it.
Francisco

CPU goes to 100% state svchost takes all resources on Qosmio F10

CPU goes to 100% state svchost takes all resources. Norton does not find any illegal software. Have tried to list the processes (run... etc.). I get a long list, don't know what to do about it. Does anybody out there have some help?

Hello,
if you have your note for a year or more and did not take it for an internal heatsink clean and essentials parts, yet.
One possible problem here is: Heatsink blocked with dust (CPU goes to 100% state svchost takes all resources)
90% of the high temperatures problems, unexpected shutdowns, 100%CPU all the time without running background processes, very hot keyboard area, freezing programs, are caused by the heatsink blocked with dust.
The normal temperature for the processor is between 55C and 79C. For the motherboard is around 55C~60C. When the heatsink is blocked those temperatures can reach 99C (processor) and around 80C (motherboard). Measure in Celsius degrees.
You can check it out how "hot" your Qosmio is.
Download the Everest ultimate 2006 edition V 3.50.761, look for it with Google search.
Run it and see the temperatures for CPU, Processor and motherboard on your Qosmio:
See:
http://www.rabayjr.com/vista/qosmioeverest.jpg
Run the System stability test (find it under tools menu) for 10 minutes aprox.
Watch the temperatures at taskar. If it reachs more than 92C for the processor on stress mode, its time to clean the heatsink and all essential parts of your Qosmio. Attempt to the processor fan RPM, too, if they run fast and noisy, you really must perform a clean.
But it depends on the ambient environment, for a 30C summer day the processor temperature almost get the 90C. this is normal in stress mode. And the fans run without noise. Slow RPM mode.
All measured in Celsius degrees, for Farenheith please convert it.
Francisco

When starting Firefox 3.6.11 the CPU goes to 100%.

After upgrading from 3.6.10 to 3.6.11 I'm unable to start Firefox in a reasonable period of time (3 minutes). The CPU goes to 100% for one of my 4 cores, when left to its own, the Firefox window appears after 18 minutes 43 seconds. My CPU is a Q6700 (Quad 2.66Ghz).

How can I go back to 3.6.10??

Cpu goes to 100%

I can open itunes. I can not click on anything on the page without my cpu going to 100% and freezing my computer. If I type in an artist in the search I can sometimes look and purchase music. If I go to another artist my cpu goes to 100% and freezes. The only way to unfreeze it is to go to Windows Task Manager and end task on itunes.

http://discussions.apple.com/thread.jspa?threadID=723198&tstart=0

T500 turns off after cpu goes 100% for some time

I welcome all useful feedback on the issue - please do test your laptops if you can
my T500 turns off after cpu goes 100% for some time, that is just another issue?
happens both in windows and linux
edit : it cannot be from dust - I remember this happened occasionally even it was brand new

This makes the fourth post to say: CLEAN OUT YOUR FAN.
So...
CLEAN OUT YOUR FAN.
Some compressed air does the trick. You can find the disassembly instructions here:
http://www-307.ibm.com/pc/support/site.wss/MIGR-70068.html
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

Importing Audio CD to library, downloads slow and CPU goes to 100%,

Importing Audio books CDs to library, downloads slow and CPU goes to 100%, last two tracks take an extreme long time to load, audio is spotty on those two tracks. Any ideas as to why or how to correct

I think your problem might be in the settings. Your audiobooks might be trying to download like music CDs, and doing error checking and playing while it downloads.
Here's a link to some really helpful information about how iTunes treats audiobook CDs and how to do it better. It helped me out a lot.
http://aldoblog.com/audiobooks/
Good luck.
Andrew Hollinger
www.****************.com (created with iWeb)
<Edited by Moderator: Please See Terms of Use>

Oracle.exe consuming 100% CPU on windows and database hang

Hi all,
every time my oracle database is hanging when the application run, the problem is the oracle.exe consum 100% CPU but not memory and the server hang and the dabase is going to inaccessible, we need to restart oracle instance service or server to bring the databas eback to normal but it's not permanent because the problem occurs once the application turn on.
Checking the log file i found the below error every time:
My database version is 9.2.0.7.0
OS: Windows 2003 Server Standard Edition Service Pack 2
RAM: 3,5Gb
CPU: Inte Xeon 3.20 GHz
ORA-00600: internal error code, arguments: [kghuclientasp_03], [0xBFEADCE0], [0], [0], [0], [], [], []
ORA-29913: error in executing ODCIEXTTABLEFETCH callout
ORA-29400: data cartridge error
KUP-04050: error while attempting to allocate 163500 bytes of memory
ORA-06512: at "SYS.ORACLE_LOADER", line 14
ORA-06512: at line 1
Fri Mar 05 05:35:15 2010
Errors in file e:\oracle\admin\optprod\udump\optprod_ora_5876.trc:
ORA-00603: ORACLE server session terminated by fatal error
ORA-04030: out of process memory when trying to allocate 8389132 bytes (pga heap,redo read buffer)
ORA-04030: out of process memory when trying to allocate 8389132 bytes (pga heap,redo read buffer)
ORA-04030: out of process memory when trying to allocate 8180 bytes (callheap,kcbtmal allocation)
Thank you
Lucienot.

Is this a new application on this database?
Has it run well in the past?
I have had this happen before on a 32bit Windows server. Our problem was a poorly written procedure that kept pegging the cpu to 100%. You should be able to figure out what SQL is being used that is causing this problem, it will be the Top Working SQL most likely.
I also had this problem on a Logical Standby server which was trying to apply SQL to the SYS.AUD$ table. As soon as SQL Apply was started, the CPU went to 100%. Once I truncated that table, the cpu usage went back to normal. Not sure what you are using to monitor your database but if you can, try to find out what SQL is running when your CPU goes to 100%.

CPU apparent usage of 100% when no applications running.

Quite frequently, and all day so far today, I have indications that the cpu is running at 100% even though no applications are running (it also shows that when they are and they don't seem particularly affected). I have tried putting to sleep for a period with no change, and then re-start, again with no change. I shut-down every night to economise, etc., and that after running Onyx to do a pretty full check and housekeeping under Automation in case anyone thinks that relevant.

If you check All Processes in Activity Monitor and there doesn't appear to be a culprit process, it may be that the SMB daemon is repeatedly launching and crashing, only to launch itself again, over and over. Try turning off Windows File Sharing in the Sharing pane of System Preferences and then turn it back on and see if that resolves the issue.
Hope this helps....
Dual 2.7GHz PowerPC G5 w/ 2.5 GB RAM; 17" MacBook Pro w/ 2 GB RAM - Mac OS X (10.4.8)

MacBook Pro System CPU Spikes When Unplugged

Upgraded to Mavericks a few days ago and,whenever I unplug my MacBook Pro 13" (Early 2011 - 2.3GHz Intel Core i5 - 16GB RAM 1333MHz) and run just on the battery, my system CPU usage goes through the roof which results in my Mac running/responding very slowly and buggy.
However, looking at the iStat widget on my dashboard, it's reporting that my CPU isn't running hot nor does my MacBook Pro feel hot at all. It's also showing that I still have 10GB of RAM free.
As expected, once my magsafe is reattached to my laptop and plugged back in, the system CPU returns to a normal level. In Activity Monitor, it shows kernel_task as being the culprit.
I queried the log as suggested by Linc and TextEdit had something for me:
Dec 10 15:51:31 My-MBP kernel[0] <Debug>: Process Setup Assistant [307] disabling system-wide I/O Throttling
Anyone have any idea what this could be? Seems like it should be a simple software config but I just don't know.
Additionally, I also ran EtreCheck. These are the results when it's running unplugged:
Hardware Information:
          MacBook Pro (13-inch, Early 2011)
          MacBook Pro - model: MacBookPro8,1
          1 2.3 GHz Intel Core i5 CPU: 2 cores
          16 GB RAM
Video Information:
          Intel HD Graphics 3000 - VRAM: 512 MB
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
          AirPlay: Version: 1.9 - SDK 10.9
          AppleAVBAudio: Version: 2.0.0 - SDK 10.9
          iSightAudio: Version: 7.7.3 - SDK 10.9
System Software:
          OS X 10.9 (13A603) - Uptime: 1 day 18:10:35
Disk Information:
          M4-CT128M4SSD2 disk0 : (128.04 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    SSD Macbook Pro (disk0s2) /: 127.18 GB (68.53 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
          MATSHITADVD-R   UJ-898
USB Information:
          Apple Inc. FaceTime HD Camera (Built-in)
          Apple Inc. Apple Internal Keyboard / Trackpad
          Apple Inc. BRCM2070 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Computer, Inc. IR Receiver
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist
          [loaded] com.adobe.SwitchBoard.plist
          [loaded] com.barebones.authd.plist
          [loaded] com.github.GitHub.GHInstallCLI.plist
          [loaded] com.google.keystone.daemon.plist
          [loaded] com.microsoft.office.licensing.helper.plist
          [loaded] com.oracle.java.Helper-Tool.plist
          [loaded] org.macosforge.xquartz.privileged_startx.plist
Launch Agents:
          [not loaded] com.adobe.AAM.Updater-1.0.plist
          [loaded] com.adobe.CS5ServiceManager.plist
          [failed] com.extensis.FMCore.plist
          [loaded] com.google.keystone.agent.plist
          [loaded] com.hp.messagecenter.launcher.plist
          [loaded] com.Logitech.Control Center.Daemon.plist
          [loaded] com.oracle.java.Java-Updater.plist
          [loaded] com.wacom.pentablet.plist
          [loaded] org.macosforge.xquartz.startx.plist
User Launch Agents:
          [loaded] com.adobe.AAM.Updater-1.0.plist
          [loaded] com.adobe.ARM.[...].plist
          [failed] com.apple.CSConfigDotMacCert-[redacted]@me.com-SharedServices.Agent.plist
          [loaded] com.codecm.uploader.plist
          [loaded] com.facebook.videochat.[redacted].plist
          [loaded] com.spotify.webhelper.plist
          [loaded] de.municode.Ephemera.plist
User Login Items:
          ShiftIt
3rd Party Preference Panes:
          Air Display Preferences
          PenTablet
          DivX
          Flash Player
          Flip4Mac WMV
          Growl
          Java
          Logitech Control Center
          Perian
Internet Plug-ins::
          OfficeLiveBrowserPlugin: Version: 12.2.0
          AdobePDFViewerNPAPI: Version: 10.1.8
          Flash Player: Version: 11.9.900.170 - SDK 10.6
          AdobePDFViewer: Version: 10.1.8
          googletalkbrowserplugin: Version: 4.9.1.16010
          AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7
          iPhotoPhotocast: Version: 7.0 - SDK 10.7
          QuickTime Plugin: Version: 7.7.3
          FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6
          AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6
          WidevineMediaTransformer: Version: (null)
          npgtpo3dautoplugin: Version: 0.1.44.29 - SDK 10.5
          DivXBrowserPlugin: Version: 2.2
          OVSHelper: Version: 1.1
          Silverlight: Version: 5.1.10411.0 - SDK 10.6
          Default Browser: Version: 537 - SDK 10.9
          Flip4Mac WMV Plugin: Version: 2.4.2.4
          o1dbrowserplugin: Version: 4.9.1.16010
          SharePointBrowserPlugin: Version: 14.1.0
          WacomTabletPlugin: Version: WacomTabletPlugin 2.0.0.4
          JavaAppletPlugin: Version: Java 7 Update 11 Outdated! Update
          WacomNetscape: Version: 1.1.1-1
User Internet Plug-ins::
          WebEx64: Version: 1.0 - SDK 10.5
          SlingPlayer: Version: (null)
Bad Fonts:
          None
Old applications:
          Cisco WebEx Meeting Center:          Version: 11.24.32.0 - SDK 10.5
                    /Users/USERNAME/Library/Application Support/WebEx Folder/1224/Meeting Center.app
          Edge:          Version: 0.10.0 - SDK 10.5
                    /Applications/Adobe Edge Preview/Edge.app
          FacebookVideoCalling:          Version: 1.2.0.157 - SDK 10.5
                    /Users/USERNAME/Library/Application Support/Facebook/video/1.2.0.158/FacebookVideoCalling.app
          Microsoft AutoUpdate:          Version: 2.3.3 - SDK 10.4
                    /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
          SLLauncher:          Version: 1.0 - SDK 10.5
                    /Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
          Transmit:          Version: 4.2 - SDK 10.5
                    /Applications/Transmit.app
          VLC:          Version: 2.0.1 - SDK 10.5
                    /Applications/VLC.app
          WhatSize:          Version: 5.2.1 - SDK 10.5
                    /Applications/WhatSize.app
          asannotation2:          Version: 8.25.31.0 - SDK 10.5
                    /Users/USERNAME/Library/Application Support/WebEx Folder/1224/asannotation2.app
          atmsupload:          Version: 4.14.29.0 - SDK 10.5
                    /Users/USERNAME/Library/Application Support/WebEx Folder/1224/atmsupload.app
          convertpdf:          Version: 1.2 - SDK 10.5
                    /Users/USERNAME/Library/Application Support/WebEx Folder/1224/convertpdf.app
          dynamiclinkmanager:          Version: 6.0.0 - SDK 10.5
                    /Library/Application Support/Adobe/Common/dynamiclink/CS6/dynamiclinkmanager.app
          dynamiclinkmediaserver:          Version: 6.0.1 - SDK 10.5
                    /Library/Application Support/Adobe/Common/dynamiclinkmediaserver/1.0/dynamiclinkmediaserver.app
Time Machine:
          Time Machine not configured!
Top Processes by CPU:
               8%          mds
               7%          WindowServer
               5%          Dock
               3%          EtreCheck
               1%          Google Chrome
Top Processes by Memory:
          180 MB          Google Chrome
          164 MB          mds_stores
          131 MB          softwareupdated
          115 MB          Dock
          82 MB                  installd
Virtual Memory Statistics:
          10.52 GB          Free RAM
          2.94 GB          Active RAM
          752 MB          Inactive RAM
          1.81 GB          Wired RAM
          4.31 GB          Page-ins
          0 B                  Page-outs
Does anyone have any ideas on why this is happening or are experiencing anything similar? I can't for the life of me figure out if it's a Mavericks issue or if it's a hardware issue. Any advice would be much appreciated! Thanks!

You're not going to believe this but I just now found a working solution!!!
Thanks to the talents of a man named, Rhys Oxenhams, and his flawless tutorial, eveything's running normally now!
BEFORE READING ON...make sure you backup all of you data! I take no responsibility for anything bad that happens to your machine. I'm providing this information because it worked for me. There's no guarantee it will work on your system. TAKE ALL NECESSARY PRECAUTIONS BEFORE READING ON and BACKUP YOUR DATA IMMEDIATELY.
Here's what you need to do:
1. In the Finder menu bar, click on Go and select Computer. 2. In the window that comes up, double-click your computer's HD. For me, it's Macintosh HD. 3. From there, click on System > Library > Extensions. 4. Now look for a file called IOPlatformPluginFamily.kext. 5. Right-click on IOPlatformPluginFamily.kext and choose Show Package Contents. 6. In that new window that comes up, click on Contents > Plugins and locate ACPI_SMC_PlatformPlugin.kext. 7. Just like in step 5, right-click on ACPI_SMC_PlatformPlugin.kext and choose Show Package Contents. 8. Just like in step 6, in that new window that comes up, click on Contents > Resources and locate your Model Identifer.
     • In case you don't know what your Model ID is, click on the  in the top left of the screen and choose About This Mac     • In the window that comes up, click on More Info...     • In the next window that comes up, click on System Report     • In the very first screen, towards the top, locate the entry Model Identifier          - Write this info down on a piece of paper. You will need it. In my case, I wrote down MacBookPro8,1 9. Back in the Resources folder, locate the .plist file that has your model identifier. In my case, it was MacBookPro8,1.plist 10. You're not going to delete that file but instead move it to a differnt folder inside your home folder--doesn't matter which folder, just put it somewhere inside your home folder. 11. Restart your machine and you are good to go!
Let me know how it turns out for you. REMINDER: Backup your data before doing this!

CPU goes idle and then comes back..why?

During stress testing we ran 100 concurrent logons and then logoffs with the first 84 user completing this test run in 20 - 30 seconds. During this time both Portal ap1 and ap2 hit 100% utilization on the servers. After the 20 - 30 seconds the portal aps CPU goes idle and the
remaining 16 users out of the 100 hit a 120 second delay before there request returns processing the test and completes. During this 120 sec delay I see the aps CPU go idles until the 120 sec time expires.
What is causing this 120 sec delay?

Hello Vaibhav,
sorry I have no answer to your question. I want to know what tool you are using to do the stress test. We go live in one week with our EP for CRM and I really want to know if the performance is enough for 120 Users.
Regards
Gregor

Putting ActiveX(packager) in CTabCtrl will cause CPU increase up to 100%

Putting ActiveX(packager) in CTabCtrl will cause CPU increase up to 100%, and the whole system hangs.(When the test application loses its focus).
Could you tell me why?
Thanks.

Ken McEwen wrote:
Have reinstalled Lion overnight and it seems to be limping along this morning, although the wi-fi is dropping repeatedly.
How I wish I had followed my usual rule and waited until at least OSX 10.7.1 before installing.
How did you "reinstall?" Others are reporting that installing from scratch is working better. If you're going to keep trying with Lion, I'd recommend posting in the Lion forum: https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion (wow, I almost said "Windows forum," hmmm ).
I may get in at 7.1, more likely at 7.2, but only if things look like they've changed enough. This appears to me to be on par with the change from 9 to X, and I waited until 10.2.3 with that one. If/when I do change, I'll have an up to the minute SL clone ready to reinstall if needed, and even then, I'll probably put 10.7 on an external HD.

Limit CPU load of a single process

Is it possible to limit the CPU load of a certain process to e.g. 70% leaving 30% for the idle process?
I have some CPU intensive simulations with hard-disk access running over night. Does not make a difference if the job takes 4 hours or 6 hours - I am sleeping anyway. But I'd like to be nice to my beloved MacMini and keep it cool. The room temperatures are pretty hot this summer anyway and I don't know if my MacMini will withstand several hours at 100% CPU load, hard disk access and ambient temps of 38°C (100°F). Just want to be on the save side.
Is there a shell command like 'limit -cpu <process_id> 0.70' ?
Or can I clock my macMini at half the usual clock, i.e. at 700 MHz?
What about a loop: (1) 'kill -s stop <process_id>' (2) wait 3 secs (4) 'kill -s cont <process_id>' (4) wait 7 sec. - How to program that loop in a shell? Which command to set the timing?
many thanks
Markus

Thank you for your answer, etresoft.
Yes, you are right, nice +20 and nice -20 does not make any difference, because the process I want to slow down is the "only" one running (beside residual 5% system load).
Your Mac will be fine even running full-bore.
I am not sure about that.
First, the fans get loud. Unfortunately, the Mac is in my bedroom and I would prefer a system load of 50-70%.
Secondly, I had a compressor job running over night for 6 hours. In the morning, I had a very weird file system corruption. I suspect a 'thermal issue'.
http://discussions.apple.com/message.jspa?messageID=2715556
Maybe I'll do to 'kill -s start/stop'-in-a-loop script.
Unfortunately, I never wrote a shell script.
Any help how to make a loop and how to pause the script for 3 secs?
Many thanks
Markus
MacMini 1.42 GHz Mac OS X (10.3.9)

CPU utilisation is at 100% on SQL Server

Currently the CPU utilisation is at 100 % on the SQL Server and sql server.exe is utilising 98% in the task manager.Is this because of the query running for long time?
however I dont see any process in running state.
Thanks

Hi check WITH DB_CPU_Stats
AS
(SELECT DatabaseID, DB_Name(DatabaseID) AS [DatabaseName], SUM(total_worker_time) AS [CPU_Time_Ms]
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID]
              FROM sys.dm_exec_plan_attributes(qs.plan_handle)
              WHERE attribute = N'dbid')
AS F_DB
GROUP BY DatabaseID)
SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [row_num],
       DatabaseName, [CPU_Time_Ms],
       CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5,
2)) AS [CPUPercent]
FROM DB_CPU_Stats
WHERE DatabaseID > 4 -- system databases
AND DatabaseID <> 32767 -- ResourceDB
ORDER BY row_num OPTION (RECOMPILE);
check error log and trun on traceflag 1222,1204 and see errorlog.
check missing index.
update statistics.

System cpu goes 50% to 100% process is oracle.exe

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