CBO Performing Bad as compared to RBO any suggestions

Hi
I am migrating from RBO to CBO. I have taken the Stats on the schema tables and indexes. The response times in CBO are really Bad as compared to RBO. Can any one suggest where should I Start to make the performance better.
Thanks

In order to get a list of name and values of optimizer parameters that your session is using you can use 10053 event. here is an example;
HR on 25/03/2006 19:55:33 at XE > alter session set events ‘10053 trace name on
text forever, level 1′;
Session altered.
HR on 25/03/2006 19:55:51 at XE > SELECT TO_CHAR(sysdate,’DD-MON-YY HH24:MI:SS’)
”Start” FROM dual;
Start
25-MAR-06 19:55:59
1 row selected.
HR on 25/03/2006 19:55:59 at XE > ALTER SESSION SET EVENTS ‘10053 TRACE NAME CONTEXT OFF’;
The file at User_Dump_Dest folder in your Os with .trc extention will be created.
Hope this helps, kind regards.
Tonguç

Similar Messages

  • Bridge CS3 on opening: "This Application may perform badly"

    I recently restored my PC to factory condition to troubleshoot performance problems in CS3 Production Premium. I reinstalled all my programs, but it got a little messy when I restored my backup files from an external hard drive. Lots of files ended up in different locations and some were duplicated.
    I wanted to use Bridge to try to reorganize everything, but I get this message when opening Bridge:
    "This application requires an Intel 4 Pentium Celeron, Intel Core Duo or Intel Core 2 Compatible processor (C01/6/5895)"
    and
    "This application may perform badly. Are you sure you want to continue?"
    I am running Vista Ultimate 64-bit on a 2-month old HP Pavilion d5000t desktop with an Intel Core(TM)2 Quad CPU @ 2.66GHz and 8GB RAM which should exceed the minimum requirement.
    What should I do? Performance on my PC is still not good. Premiere opens without a message, but is sluggish; Encore freezes; forget about After Effects.

    And or course the fact that the restore of the backup was "a little messy"
    may not bode well--it's possible some files were restored that should not
    have been and that parts of the OS or Apps are hosed.
    My advice would be to deactivate/uninstall the Adobe apps, restore the
    system again to factory condition, install any operating system updates, and
    then reinstall your Adobe apps. Now check them out: are they running at the
    expected speed? If so--and they probably will be--then carefully and
    selectively restore exactly the data you need to restore and to the proper
    locations. Be careful that your backup files are just data and not program
    files or parts of program files.
    Trez

  • My imac is running very slow compared to normal. any one have any ideas?

    iMac (21.5-inch, Mid 2011)
    2.5 GHz Intel Core i5
    4 GB 1333 MHz DDR3
    AMD Radeon HD 6750M 512 MB
    running slowly compared to normal.
    Any suggestions in what to look for?

    When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.  
    These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad and start typing the name.
    The title of the Console window should be All Messages. If it isn't, select
              SYSTEM LOG QUERIES ▹ All Messages
    from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar at the top of the screen.
    Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
    Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
    Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
    The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
    Please don't indiscriminately dump thousands of lines from the log into this discussion.
    Please don't post screenshots of log messages—post the text.
    Some private information, such as your name, may appear in the log. Anonymize before posting.

  • Does anyone have any suggestions to improve the performance to improve Firefox for andoid (more details).

    I'm using it on a Samsung Captivate SGHi-897 with Jellybean 2.2 (I'm unable to upgrade the OS @this time). Firefox was recommended by a freind, however, so far I've been very disappointed with it, as, it is extremely slow and constanly crashes. I've tried all of the suggestions provided, but there is no improvememt. I realize it may be not all that compatible with this properly working device or OS. I have Samsung Galxaxy SGHi-727 Skyrocket with IC 4.1, however, I've been waiting for a part for it coming from Aisa, which seems to be taking forever, so in the meantime I'm.stuck with this. I was wondering if you may have any suggestions on how to speed it up and prevent it from crashing so much, other than what's on your help guide since those changes I've tried make no improvement in it's performance. I would very much prefer to use Firefox on this device, as well as, after I repair my other device for a number of other reasons, but if I'm unable to improve it, I'll just go back to what I was using. Thank you and be well.
    twich83115
    [ed. removed email]

    Suggestion for improvement:
    I'd like <select size="1" multiple> to provide a dropdown with checkboxes like this:
    http://demos.telerik.com/aspnet-ajax/combobox/examples/functionality/checkboxes/defaultcs.aspx
    Can that be done?
    Thanks

  • My macbook pro hard drive went bad and i bought a new one and installed it. Now i have the old corrupted hard drive in my hand and i am looking to recover my files from it, any suggestions please? too bad i never backed them up.

    My macbook pro hard drive went bad and i bought a new one and installed it. Now i have the old corrupted hard drive in my hand and i am looking to recover my files from it, any suggestions please? too bad i never backed them up.

    After you have installed the OSX on the new HDD in your MBP, install the old HDD in an enclosure and connect it to your MBP via USB.  Then try to drag and drop  your data to the new HDD. 
    If this proves unsuccessful, you may look for data recovery software on the Internet.  There will be free trails to see if it will work or not.  If the trial suggests that it will work, then you will have to purchase the software.
    The last resort is a professional data recovery service that will offer NO guarantees and charge a lot of money.
    As you now can appreciate, backups eliminate such predicaments.
    Ciao.

  • MiniDisplay Port (Thunderbolt MacbookPro) to DisplayPort Dell U2410m don't work! The signal only comes as YPbPr, no RGB and bad quality. Is there any solution?

    I want to connect my new MacBook Pro via DisplayPort to a Dell U2410m monitor.
    But the signal only comes as YPbPr, no RGB and bad quality. Is there any solution?
    It works with the mini display port to DVI adapter from Apple but I want to use the DisplayPort.

    J~
    cmelbourne91 was suggesting HDMI because many of the MDP/Thunderbolt to DVI adapters come with an additional DVI to HDMI (not Apple's) and you likely won't find any MDP to HDMI becuase of something weird with one of the Apple or HDMI related patents and the type of cable/jack/plug required for it.
    As for my computer (15" MBP mid 2010), it almost seems as if I have your problem but intermittently. When connected to an external monitor or projector, the thing will project just fine, but then after some time (and no movement of the computer, cables, or screen) the connection quits. Sometimes it comes back on, sometimes it does not, but it basically registers as if there is no external display.
    Any additional info on this?

  • My iphone 5 has a bad signal reception LTE turned off any suggestions

    I purchased my Iphone 5 last November 2012 by Cosmote Greek network provider.
    I am using an iphone 3GS as well and I can compare the strength of the signal reception all time.
    Usually the 3GS has 3 signal bars more than the Iphone 5 which many times goes with no signal. The LTE is turned off as well any suggestions?
    Thanks

    I'd just like to say that ahs70's post on Dec 1, 2013 at 1:17am on Pg. 9 worked for me as well: https://discussions.apple.com/thread/5338609?start=120&tstart=0
    If your iPhone's battery is acting up you need to determine if it's a software issue or a hardware/battery issue.  To do that, after syncing your iPhone, erase/hard reset all data and settings from your iPhone to what it was from the factory as new.  This can be found in Settings/General/Reset/Erase All Content and Settings.  Then test it out for a day or two.  If it's still acting up then it's likely a hardware issue and you will need to get your battery replaced.  If your warranty is done than check out this link to get a battery kit to replace your iPhone battery yourself:  http://www.ifixit.com/Store/iPhone/iPhone-5-Replacement-Battery/IF118-001#produc tDescription
    If your iPhone is now working properly after hard resetting it than it's most likely a software issue.  This battery issue only started after upgrading to the new iOs7, so it is obviously related to the update not properly installing itself.  What has worked for me and many others is to manually update to iOS 7.0.4 using the full downloaded version of the update which is about 1.32 Gigs.
    But first you need to find out what model of iPhone you have, click here to determine if it's GSM or CDMA: http://support.apple.com/kb/HT3939?viewlocale=en_US&locale=en_US
    Then go here and scroll down to download the iOS 7.0.4 complete update for your device:  http://www.downloadios7.org/download-ios-7-0-4-ipsw-file.html
    Then scroll up on the download page and follow the instructions of updating your iPhone manually following the instructions below:  "IPSW with iTunes"
    And your done.
    Problem solved.
    I only posted this because it was a very frustrating problem that no one really seemed to figure out a solution for.
    I hope this helps.
    Emile Beaulieu

  • System Performance BAD

    I have an Intel 510 ssd installed in the HDD bay and a 500 GB western digital installed in a data doubler where the optical drive usually goes.  My problem is with the system but I think it might have something to do with my SSD or data doubler.  The problems I have are mainly with the applications stalling or the UI freezing. Some examples are: I create a new tab in Safari and it gives me a white window, I try force quit the app but it is still going in the background.  After a few Seconds I get the "Spinning beach ball of death." eventually after trying to logout I perform a hard shutdown and then start things up again.  My computer is very fast when it works properly but lately its been very buggy.  Any Suggestions! I appreciate all you have to offer. Thanks!

    You might find useful advice in this thread.

  • Cannot uninstall cs6 bad hard drive, any suggestions?

    Cannot uninstall cs6 bad hard drive, any suggestions?
    THank you

    Thank you for the Adobe contact. They connected me to the chat link and the Adobe tech Support rep sent me a License Recovery download link (attached) http://download.macromedia.com/pub/support/tools/LicenseRecovery111.dmg.
    I have 10.10.1 Yosemite. When I open the download folder and click on the LicenseRecovery.app it shows up on the dock but it nothing happens. I cannot quit the app only Force Quit. I have restarted the mac and that did't help.
    Adobe chat suggested I uninstall CS5.5/6 and re-install but why would that have anything to do with the app opening?
    Any suggestion is greatly appreciated, again.
    Thank you

  • Ever since I  loaded mountain lion, my macbook runs very badly.  It it very slow to react to any commands or cursor movements.  It freezes for about 15 seconds at a time.  It does not have that fact response like when I first bought it.  Any suggestions?

    Ever since I loaded Mountain Lion onto my Macbook, it runs very badly.  It freezes for 15 seconds, does not respond to cursor instructions and just reacts very slowly.  Any suggestions?

    You have a better chance of a response over on the Mtn. Lion community.
    https://discussions.apple.com/community/mac_os/os_x_mountain_lion

  • I cannot log on to my Comcast e-mail from my IMac anymore.  This is a new issue, recently I had to delete cookies from my system in order so my email wasn't frozen, but over the past few days it has went from bad to worse.  Any suggestions-I am not very c

    I cannot log on to my Comcast e-mail from my IMac anymore.  This is a new issue, recently I had to delete cookies from my system in order so my email wasn’t frozen, but over the past few days it has went from bad to worse.  I am able to enter my login information, but it just goes right back to the home page.  Any suggestions…maybe I deleted something else in the process.

    OK, restart in Safe Mode, this will clear some caches. It's possible one or more is corrupt. To restart in Safe Mode when you hear the start up tone hold down the Shift Key until you see a progress bar. Let it fully boot then restart normally and test.
    Also I am assuming you have checked Finder - Preferences  - General and see what boxes are checked in "Show these items on desktop." You can also mount an item in Disk Utility, simply highlight it and then look in the File menu for Mount.....

  • Have just install itunes on a new PC running windows 8 and I am getting very bad distortion when playing music, any ideas

    Have just install itunes on a new PC running windows 8 and I am getting very bad distortion when playing music, any ideas. Music on web (youtube) is working fine.

    Use a different browser.
    iTunes can only be installed and run in desktop mode.

  • Bad app like to block any member for no reason

    Beetalk is bad app like to block any member for no reason ... i think they just want any user send message from many mobile number to make new account and earn money from this ...beetalk never say anything before they block an account ... really bad app and any comment from www.facebook.com/BeeTalkThailand?fref=ts all so

    I'm sorry but I don't understand. What is your technical support question?

  • I have a bad idea I might of blown up mu iPod touch 5th generation battery by a mistake, please any suggestions on how i could try and turn it on? It is completely blank and it had full charge before it shut off. In need of desperate help :-(

    I have a bad idea I might of blown up my iPod touch 5th generation battery by a mistake, please any suggestions on how i could try and turn it on? It is completely blank and it had full charge before it shut off. In need of desperate help :-(
    Would be very grateful if someone could get back to me
    Thank you very much

    - iOS: Not responding or does not turn on
    - Also try DFU mode after try recovery mode
    How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
    - If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
    - Try another cable
    - Try on another computer                            
    - If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
    Apple Retail Store - Genius Bar                                     

  • I paid for and downloaded episode 5 of breaking bad, with 13.58 seconds left, it froze and no matter what I do it will not start again.  Any suggestions?

    I paid for and downloaded episode 5 of breaking bad, with 13.58 seconds left, it froze and no matter what I do it will not start again.  Any suggestions?

    I'd report the problem to the iTunes Store. 
    Log in to the Store. Click on "Account" in your Quick Links. When you're in your Account information screen, go down to Purchase History and click "See all".
    Find the item that is not playing properly. If you can't see "Report a Problem" next to the item, click the "Report a problem" button. Now click the "Report a Problem" link next to the item.

Maybe you are looking for