The CPU usage rises, more than a few hours until the application crashes

Similar Questions

• High CPU usage when more than 30 sessions disconnection/connection

  Hi guys,.
  I had this problem for a long time.
  Environment: RAC 10.2.0.5. Oracle enterprise linux 4.8. Application Java B2C with dbcp and oc4j dirver.
  
  Server type: Dell R815. 48 processors 128 G MEM for each node.
  
  This is a lot of the web application connects to the database and when one of them is down it will restart soon and try to connect to the database again. Each of them will try to get 50 connections simultaneously initially.
  
  So when it happens, the sys cpu usage % will pass to more than 70, 80, 90 percent each time.
  
  BTW, it also happens in more than 30 logout simultaneously.
  
  Could someone tell me what the problem is?
  
  
  Thank you very much.
  
  Published by: Longfei Wei on February 17, 2011 23:48

  Longfei Wei says:
  Hi guys,.
  I had this problem for a long time.
  Environment: RAC 10.2.0.5. Oracle enterprise linux 4.8. Application Java B2C with dbcp and oc4j dirver.

  Server type: Dell R815. 48 processors 128 G MEM for each node.

  This is a lot of the web application connects to the database and when one of them is down it will restart soon and try to connect to the database again. Each of them will try to get 50 connections simultaneously initially.

  So when it happens, the sys cpu usage % will pass to more than 70, 80, 90 percent each time.

  BTW, it also happens in more than 30 logout simultaneously.

  Could someone tell me what the problem is?

  The task of creating a connection and the session must be serialized, and if you start a number of connection or disconnection is trying at the same time you can end up with a storm of activity on the relevant latches that effects serious knockon. I'm a little surprised that you see that with only 30 to 50 connections, but maybe you have a couple of processors.

  I made some comments to this topic on another thread a while ago: Re: generals to have a high value of the init process (or sessions) parameter

  It is possible that you can configure the application server in order to limit the speed at which he tries to create or cancel the connection - for example, there may be configuration settings to say things like: 'create no more than 5 both', 'just wait a second between disconnections. (Oracle introduced parameters to logoff storms - but maybe they don't work in your version).

  Concerning
  Jonathan Lewis
  http://jonathanlewis.WordPress.com
  http://www.jlcomp.demon.co.UK

  A general reminder on "Forum label / Reward Points": http://forums.oracle.com/forums/ann.jspa?annID=718

  If you mark never questions answers people decide later that it isn't worth trying to answer you because they never know if yes or no, their response has been of no use, or if you even bothered to read it.

  It is also important mark responses that you thought useful - again once it leaves other people know that you appreciate their help, but it also acts as a pointer for other people when they are researching on the same issue, also means that when you mark a bad or wrong the useful answer someone can be invited to tell you (and the rest of the forum) which is so bad or wrong on the answer that you found it useful.

• esxi set time via ntp if lag is more than a few hours?

  Today, I discovered an additional step.

  If you standup a server esxi with a static ip address, you must manually assign the ntp servers.

  Fair enough, if you set the ntp server and tell it to restart ntp, you wait to update the time.

  If the offset is too big between the client and the server, it will not set the time.

  Is this a standard behavior of linux, I've never seen.

  If your time differential is too large it will not refresh time from ntp server, until you set it manually once.

  This is the behavior that I lived on four systems of 4.0u2, I place today.

  I had similar problems, don't know what I did to solve it, but I never got it again since I started to install ESX in following these steps about the hour.

  1. set the BIOS to the UTC clock

  2. install esx

  3. connect through the client vsphere, go to time config page and put in place NTP with pool.ntp.org, restart the service.

  bounce of the ESX box, re - connect and the time is perfectly synchronized with my local computer.

  I hope this helps.

• T4i does not record more than a few seconds of HD videos?

  Hello

  The obtained T4i my partner does not seem to record HD videos more than a few seconds. It does NOT use video snapshot mode to capture video. Videos captured mode 640 x 480 can save for a time quite long... more than twelve minutes. She emptied the SDHC 16 GB card completely and still the same problem is faced.

  Any suggestions as to what can be causing this?

  Thank you

  The manual recommends a class 6 or higher.  Any class 10 will work for video.

• I have a laptop Windows 7, which says it's the upgrade. It puts in place upgrade now page for more than 5-6 hours.

  * Original title: upgrade Windows 10

  I have a laptop Windows 7, which says it's the upgrade.  I leave work on the upgrade to Windows 10 on 2 different days and no luck.  It puts in place upgrade now page for more than 5-6 hours.  Any help?

  Jeff

  If the upgrade process sticks or does not respond to 99%, it is better to wait and do nothing for 5 to 6 hours. If there is still no progress to close the Wizard Windows 10 upgrade, restart the computer and try to upgrade following the tips detailed below.

  You are using an ethernet cable or wireless to connect your computer to the router? Wired ethernet is faster and more reliable for large downloads. An ethernet cable is a low-cost purchase.

  Disable your anti-virus software so that the upgrade.

  I suggest you to download the tool for creating Windows Media 10 ISO and make a place in upgrade.

  Download the update of Windows Media Player 10 tool creation build 10586:
  http://www.Microsoft.com/en-us/software-download/Windows10

  How to download an ISO using media tool:
  http://www.tenforums.com/tutorials/9230-Windows-10-ISO-download.html

  How to make a upgrade in Place using method 1:
  http://www.tenforums.com/tutorials/16397-repair-install-Windows-10-place-upgrade.html#step6

  If this does not work please provide more information for your issue to be diagnosed.

  Restart your computer and wait 20 minutes for the system to operate before you download information. When the review much, not Event Viewer log files all problems show in the period immediately after the computer has booted.

  Please provide a copy of your system information file. Type the system information in the search box above the Start button and press the ENTER key (alternative is select Start, all programs, accessories, System Tools, system information). Select file, Export and give the file a name noting where it is located. Not to place the cursor in the body of the report before exporting the file. The system creates a new information file system each time system information is available. You must allow a minute or two before the file is completely filled before exporting a copy. Please download the file to your OneDrive, to share with everyone and post a link here. If the report is in one language other than English, please indicate the language.

  Please download and share with everyone a new copy of your log System of your event viewer on your disc one and post a link here. It allows to avoid confusion if you delete all previous copies of the log files of your OneDrive.

  To access the system, log, select Start, Control Panel, administrative tools, Event Viewer, in the list on the left of the window, expand Windows logs and select System. Place the cursor on the system, select the Action in the Menu and record all events like (the evtx default file type) and give a name to the file. Do not offer not filtered files. Do not place the cursor in the list of reports before selecting the Action from the menu. Do not clear the logs so that you have a persistent problem.

  For assistance OneDrive see paragraph 9.3:

  http://www.gerryscomputertips.co.UK/MicrosoftCommunity1.htm

• How can I configure Server 2008 R2 to disconnect users, who have been disconnected more than exodus 12 hours?

  How can I configure Server 2008 R2 to disconnect users, who have been disconnected more than exodus 12 hours?

  These MS Answers forums are intended for the home rather than the it professional user. Please transfer your question in the relevant Microsoft Technet forum here:

  http://social.technet.microsoft.com/Forums/en-us/category/windowsserver .

  Thank you.      :)

  (I'm sorry, but I can't move this thread for you because the two forums are working on separate platforms

• CanvasClear causes the application crash

  I use a simple rectangular control canvas with movement indicator (Vshape) that displays the currently measured value.

  The value is updated 10 to 14 times per second, and deliberately, I made these values fluctuate.

  The canvas is filled with gradient colors (5 ranges) and the indicator moves upwards or downwards. In order to redraw the indicator,

  I use CanvasClear with the VAL_ENTIRE_OBJECT attribute and then redraws its content.  A few days ago, I noticed,

  that the software crashed, when the Panel containing the canvas control, was behind another window (belonging to an another SW

  tell the programmers Notepad or msword). I was able to reproduce the crash, which occurred immediately, but

  After that the software worked anywhere from 0.5 to 5 hours and the questionable control was behind another window.

  I also have seen, before the accident, if I move the window covering away from the canvas control, rectangle covered

  becomes black (break in non-se mode, it remains white) and it takes several seconds to redraw the partial region.

  Sometimes I noticed irregular elements (a diagonal line, not planned, from the left corner down to the right).

  Labwindows2010 IDE always shows crash-point as a call to CanvasClear().

  None of the functions, manipulating the canvas control, the return of negative values, because the software checks to see if it and if found newspapers a

  appropriate message. The canvas control has to draw political as mark for update.

  Does anyone has an idea how to everyone such instability or how to solve this problem?

  I was also able to capture the call stack and dismantling:

  Unhandled exception at 0x6850226E (cvirte.dll) in sw_dbg.exe: 0xC0000005: breach of access writing location 0 x 00000000.
  6850226E

  68502258 or eax, 0C00h
  6850225D mov dword ptr [esp + 50 h], eax
  fldcw 68502261 word ptr [esp + h 50]
  fistp 68502265 dword ptr [esp + h 50]
  movzx 68502269 eax, byte ptr [esp + h 50]
  6850226E mov byte ptr [esi], al / / the esi content is 0
  movzx ecx 68502270, byte ptr [edi]
  fldcw 68502273 word ptr [esp + h 54]
  68502277 imul ecx, ebx
  6850227A mov dword ptr [esp + 50 h], ecx
  6850227E fild dword ptr [esp + h 50]
  68502282 fdiv qword ptr ds: [68802D40h]
  68502288 fadd qword ptr ds: [68802D38h]
  6850228E ptsps qword ptr [esp]
  68502291 call 687D 5950

  Call stack:

  cvirte.dll! (6850226e)
  [Frames below are may be incorrect and/or missing, no symbols loaded for cvirte.dll]
  cvirte.dll! 684d149c)
  cvirte.dll! 687b036c)
  cvirte.dll! 687b09c2)
  cvirte.dll! 684d9759)
  cvirte.dll! 684d9981)
  cvirte.dll! 687b 5850)
  cvirte.dll! 687bc167)
  cvirte.dll! 687bd40f)
  User32.dll! 7674c4e7)
  User32.dll! 7674c5e7)
  User32.dll! 7674c590)
  User32.dll! 76744f0e)
  User32.dll! 76744f7d)
  ntdll.dll! 779c6fce)
  User32.dll! 76744ec3)
  User32.dll! 76741be4)
  User32.dll! 7673ffcd)
  cvirte.dll! 687c13c1)
  cvirte.dll! (68483419)
  cvirte.dll! (68722687)
  cvirte.dll! (68729882)
  cvirte.dll! 68525b8b)
  cvirte.dll! 686042a 6)
  cvirte.dll! 6846d7dd)
  cvirte.dll! 68557bcc)
  sw_dbg.exe! (00402470)

  Sorry for the delay in response. I followed a red herring for a few hours when troubleshooting this. It turns out that this could have been resolved much more quickly using the resource followed in CVI. If you have the full development system, you can change the compiler Options > debug to cabins lying level and then open the window > Resource Tracking. This will show you all the memory and handles your code currently open. It will appear when the elements are created, changed, or destroyed. Looking at it when your application is running (you need to suspend execution at a breakpoint to see the tracking of resources), you will see that the program continues to create plots that belong to the curve of the COLORSCALE. It is your intensity graph. If you look at using the function for PlotIntensity, he recalled in a note that a new trace is created every time that you call this function, and you want to get rid of these plots with DeleteGraphPlot.

  You can add something like this in InitScaleData.

  if(plotHandle != 0)
  {
          DeleteGraphPlot (IndicatorPanel(0), IND_COMP_COLORSCALE, plotHandle, VAL_DELAYED_DRAW);
  }
  plotHandle = PlotIntensity (IndicatorPanel(0), IND_COMP_COLORSCALE, scaleArray, 2, OGL_SCHEME, VAL_DOUBLE, gColorMap,gColorMap[OGL_SCHEME-1].color, OGL_SCHEME, 1, 1);
  

  I don't think you run necessarily in a memory problem here throwing the parcels. Intensity plots use rather a small number of GDI handles. In Windows Vista and 7, the number of GDI handles is limited to 10,000 by a Windows registry key. I look at the number of open GDI handles in the process Explorer reveals that 10000 handles were open when the application crashed on my system after about 45 minutes of execution.

  Let me know if it works if you have a chance to try this solution.

• a white screen and then the application crashes

  When I go to my iPhone mail app, there is just a white screen. Sometimes after a few seconds, the application crashes. I can't delete the app because it seems to be "built in". My mail works fine on the MacBook Pro and iPad. I tried all the suggestions on the forum.

  1. Warm reboot
  2. Toggle the settings of the aircraft
  3. Supprimer delete accounts, and then add them again
  4. Recover from a previous backup
  5. Hard Reset then retrieve

  Nothing effects mail app it seems be frozen piloted to white, so double-click on the "home" button I see the screen of e-mail in the list, but it is old age and if I select mail it displays the old page but all frozen. How can reset my mail without going through the whole hard reset, process to recover again everything seems to work.

  Update to iOS 9.3.2.

  Reset your network settings. Power cycle your iDevice.

  This should help.

• Note the application crashes...

  Note the application crashes... I have discovered that by putting my phone on "airplane mode" the app not crushed. This makes me think that there may be a conflict with the iCloud? I tried to restart but the problem persists...  Anyone has a solution, pleas?

  Hello, Craig2099!

  Thank you for reaching out by Apple Support communities. After reading your post, I understand that your Notes application to close unexpectedly when you try to use it. I keep a lot of information in the Notes, so I know it's important to be able to access the app. I'd be happy to help you!

  I have some troubleshooting I suggest to go through. Before you start, I recommend you make a backup of your iPhone by following the instructions here: How to backup your iPhone, iPad and iPod touch

  Once your backup is created, go through the following steps, in order. Test after each step, stopping when the problem is resolved.

  1. Leaving the app all opened, as shown here:force a nearby application on your iPhone, iPad or iPod touch

     Then, restart your iPhone after this article: restart your iPad, iPhone or iPod touch

  2. Uninstall the Notes application, and then reinstall it. Instructions on how to do this can be found here: remove the apps Apple integrated from the home screen on your device iOS with iOS 10
  3. Reset settings on your iPhone in settings > general > reset > reset all settings. This will not delete your personal data (like contacts, photos, calendar of events, etc.), but he'll be back customizable settings (as your background screen and display brightness, sounds of alert and ringtones, settings of Date and time, etc.) to the factory settings. It will also remove saved networks Wi - Fi and passwords, as well as all the VPN or APN settings used previously.
  4. Restore your iPhone settings by following the steps here: use iTunes on your Mac or PC to restore the iPhone, iPad, or iPod touch to factory settings

     Once the restore is complete, configure your iPhone as a new device (i.e. without using your backup, at least temporarily). You can connect to iCloud iMessage, FaceTime and iTunes and the App Store. Then test Notes. If it works and not unexpectedly ends, you can restore your backup by following the steps described here: restore your iPhone, iPad or iPod touch from a backup

  See you soon!

• Call any thread DLLs the application crashes

  I have a built in 2015-labview application that acquires spectra of 6 spectrometers via an external dll. The dll triggers an event in labview when data is ready to be pulled from the spectrometers. Since this event, I am running a reentry no void / vi which contains a node function to retrieve the data, that are configured to run in any thread, as it gives a drastic improvement of performance as apposed to run in the UI thread.

  However this can slow down the application crash with a message from windows like the following journal:

  Name of the failing application: axiom 2.0.exe, version: 1.0.0.82, time stamp: 0x5581a6b7
  The failed module name: lvrt.dll, version: 15.0.0.4024, time stamp: 0x5581ac03
  Exception code: 0xc0000005
  Offset: 0x0000000000bec7c0
  ID of the process failed: 0x15c0
  Start time of application vulnerabilities: 0x01d11e6face9febd
  The failing application path: C:\Axiom 2.0\builds\Axiom 2.0\Axiom 2.0.exe
  Path of the failing module: C:\Program NIUninstaller Instruments\Shared\LabVIEW Run-Time\2015\lvrt.dll
  Report ID: 7d4ef3a8-8a91-11e5-94e9-90b11c894ef8

  I don't know if the dll is said to be thread safe or not. Also I do not understand how this causes a problem anyway since it is the only node that accesses the dll at the time, and each of the 6 spectrometers are interviewed in order?

  Is there anyway that I can still enjoy the benefits that the call of any thread dll provides without causing my application crash.

  An example of the increase in performance, it's that I can query the spectrometer from 6 to 70-80 Hz when configured to run in any thread, as opposed to a simple 10 Hz when the Run value in the UI thread.

  Thank you

  Jimmy01 wrote:

  I don't know if the dll is said to be thread safe or not. Also I do not understand how this causes a problem anyway since it is the only node that accesses the dll at the time, and each of the 6 spectrometers are interviewed in order?

  Is there anyway that I can still enjoy the benefits that the call of any thread dll provides without causing my application crash.

  Looks like that the DLL is not thread-safe. If you do not run in the UI thread, there is no guarantee that the DLL will be always called from the same thread, even if you only call it in one no reentrante Subvi. By default, LabVIEW allocates multiple threads by the enforcement system, with the exception of the user interface. If the DLL stores certain information of one call to the other, this context can be lost when run in a different thread.

  Here's a thread that provides two possible solutions; a wrapper DLL is required, use the other the utility 'threadconfig' (or the corresponding INI file settings) to force a subsystem of a thread executing unique http://forums.ni.com/t5/LabVIEW/Force-DLLs-to-tun-in-the-same-thread-expect-the-UI-Thread/td-p/11438...

  Another option would be to put the call to the DLL in a timed loop that runs constantly, and you can use a queue or the notifier to pass data to. A timed loop runs in a single dedicated thread, so I think it will work.

• When you click on the 'Info' to the background action bar button, the application crashes.

  Hello

  Recently, we have brought successfully a BlackBerry 10 Android app.

  Everything worked fine, except the thing that when you click on the "Info" button in the action bar that appears at the bottom of the screen - the application crashes.

  I guess that this button should display a connection, or the help page. In our application, we have such a page (like an ActionItem in the ActionBar).

  Yes, is there a way we can fix it, so that when clicking on "Info" button to view our about page? Or at least to do something to prevent the application from crashing, for example hide this button.

  PS: We tested the app in the simulator of Alpha BB 10 Dev.

  Thank you.

  Hello

  Thank you for your comments. In fact, it is a known problem in the current Runtime Android on the Simulator release BlackBerry 10. It has nothing to do with your application, as this action bar fits into the Runtime Android and not your application. Normally when you section the 'Info' button you will see a screen showing you must use the gesture of back scanning used in applications Android Runtime. If you want your own topic button, you need to create your own menu.

  See you soon,.

  Matt

• The application crashes; I just had to buy it and got lightroom 6.

  The application crashes; I just had to buy it and got lightroom 6.  Never had problems in the ten years that I used my download others and for some reason any that it blocks every 20-30 minutes.  Its been happening all week since I re-downlaoded it last Monday.

  Hi helenk,

  This could be because of the graphics processor.

  Go to the Lightroom preferences > Performance > uncheck "use the graphics processor.

  Additionally, make sure that the program is updated: keeping up-to-date for Lightroom

  Kind regards

  Claes

• Clicking on one in first Pro 2015 masking tools will make the application crash. Why?

  Hello!

  I use Adobe first Pro CC 2015 on a Macbook Pro retina, model with 8 GB ram and OS X El Capitan Beta at the end of 2013.

  Whenever I click on any of the masking tools, be it, circle, curved square or Béziers, it makes the application crash.

  No idea why?

  Something to do with my ram capacity? Or El Capitan? Because with the Mavericks, I could hide without any problem.

  Can anyone help, thanks a lot!

  Hello

  Maybe it's not your RAM that is causing the problem, but the beta version of EL Capitan, which is undergoing trials of phase and so is Adobe with Apple's new OS applications. So, we can not provide legitimate action to perform on the beta version.

  If please wait patiently for the official release of Apple OS and hope that all applicvations works perfectly.

  Vinay

• How to disassemble volumes if the application crashes.

  Hello

  I'm opening a vmdk file and mounting of volumes using the code below

  m_vixError = VixDiskLib_Open)
  m_vixDiskLibCon,
  file name,
  VIXDISKLIB_FLAG_OPEN_UNBUFFERED,
  (& m_vixDiskLibHandle);
  
  m_vixError = VixMntapi_OpenDiskSet)
  & m_vixDiskLibHandle,
  1,
  0,
  (& m_vixDiskSetHandle);

  m_vixError = VixMntapi_GetVolumeHandles)
  m_vixDiskSetHandle,
  & m_numberOfVolumes,
  (& m_vixVolumeHandle);

  
  for (int i = 0; i < m_numberOfVolumes; i ++)
  {
  m_vixError = VixMntapi_MountVolume (m_vixVolumeHandle [i], FALSE);
  }

  Do an operation here...

  
  ....... How to unmount the volumes and close the disc runs if the application CRASHES here.......

  Normally I use the functions below to unmount volumes and handles closing disc

  VixMntapi_DismountVolume (m_vixVolumeHandle [i], TRUE);
  VixMntapi_FreeVolumeHandles (m_vixVolumeHandle);
  VixMntapi_CloseDiskSet (m_vixDiskSetHandle);
  VixDiskLib_Close (CVMDKFileRestore::vmdkVixDiskLibHandle.find (it-> first)-> second);

  Thank you

  Mathieu

  Hi Mathieu,

  In response to your message here (please do not cross post between different discussions)

  Finally :-)))

  I think that the chances are good that there is a light at the end of the tunnel - at least about your problem to disassemble.

  In the scenario above, if I try to mount the vmdk file after the crash that above, I get the following error message

  Read error: the specified virtual disk needs to be repaired

  I was hoping that you would report this error. Unfortunately, I'm currently not behind my development computer, which means that I don't have the VDDK header files available now, but if I remember correctly, there must be a function named VixDiskLib_CheckRepair (...) in vixDiskLib.h. Take a look at it and his PhD students. This should be the function you're looking for. The thing is that this function erases the unclean shutdown set in the hard stop dirty file indicator. Unclean shutdown as a result of the crash.

  As soon as I'm back behind my development machine, I'll send you an extract from my mount test routine that is exactly about the flag unclean shutdonw via (...) VixDiskLib_CheckRepair.

  Hang on, I'll be back in about 10 hours ;-)

  --

  Thomas G.

• Fort Portege M800 - always at 50% CPU usage or more

  Hello

  my laptop M800 is still running with the fan at full speed, the CPU usage is running between 50% to 100% even when no programs are running, this normal?, seems the computer seems never to go to a mode of rest or inactivity.

  I hope someone can help

  see you soon

  Hello

  Do you use your Portege with factory settings?

  What you need to do is to stop all unnecessary processes running in the background. This will reduce the CPU usage.
  By the way: change the parameters of cooling method.
  You can find it in the plan advanced power settings > Toshiba Power saver > cooling method. Change it to optimized battery.
  It will reduce the cooling fan activity and cell phone will last a lot quieter.

  Test it please and post comments.