Recurring gel due to periodic spikes in CPU usage.

Similar Questions

• I was just wondering if raising the Task Manager causes a spike in CPU percentage used? What is the normal percentage?

  I was just wondering if raising the Task Manager causes a spike in CPU percentage used? What is the normal percentage?

  Original title: percentage of CPU

  ASJ

  I guess it depends what you mean by 'raising '.  If the Task Manager is running minimized and you maximize there should be virtually no effect.  If you ask any Manager launch tasks can be a brief rally in cpu, memory, and HD activity, but he should be back almost immediately where he was, the slight increase depends on your specifications of the system and other factors.

  Is there a reason you ask?

  

• TimesTen 11 g - direct connection jdbc get very high CPU usage

  Hi guys,.
  
  When I run my application with a direct connection, I get very high CPU usage... Can help me where can I fix this.
  This is the configuration I have.
  
  PermSize = 102400
  TempSize = 2457
  
  More, should one I include the LogBufferSize? How much should I put in it?
  
  
  Thank you
  
  John

  Well, the point to keep in mind is that overall CPU utilization will not higher with direct mode with a local server. In fact, it will be a little weaker because of the much higher efficientcy of direct mode compared to client/server mode.

  The usual rules apply here; You must decide on the maximum use of your machine (normally one trying to limit it to)<=60% for="" the="" most="" optimal="">

  Then you need to see how your workload uses the CPU. with TimesTen there is no blocking operation within the database for a single application thread can, if it does not crash on all external events such as queue of messages, etc. I/O, usually consume a whole CPU core (a large volume of work in the process of transformation). If he asks you to this nature then you want to limit the number of concurrent threads to the smallest reasonable number. Assuming that the machine is running just the application and TimesTen and nothing else and that you wish to leave a carrot free for activity of DB o/s and the background (for example, journal of hot flashes and checkponting) then optimal throughput and response time will be reached with three concurrent threads hitting the database. You can run course with wires more than that but the flow will not be increased (in fact it will decrease somehwat due claim etc.) and response times will certainly increase. For this application profile you certainly wouldn't want to use more than 8 simultaneous maximum son.

  At the other extreme is an application that has multiple concurrent threads, but where each thread spends much of its time waiting for some work to do and runs only makes for a short period of work process then returns to the wait. You can use several more concurrent threads than the hearts of processors for this application profiel. The optimal number will be determined by the specific workload, load CPU it generates and your maximum target of use of the system.

  None of this is really specific TimesTen. The main differences that TimesTen brings all this are:

  1. the workload of database now works on the same machine as the application rather than on a server separate from the DB so that it consumes resources on the application computer.

  2. in general, database interactions will result not in any idle time from a point of view CPU usage (as a consequence of (1) above).

  Ideally, your request will be designed and implemented so that the number of concurrent threads can be controlled as a parameter tunbable to allow you to adjust the workload generated by the application to the specific environment in which it runs.

  Chris

• Satellite C650D - the CPU usage is jumping around

  I bought a Toshiba Satellite C650D 2 months ago and I used the Windows 7 that came with it, thinking that it was fine and dandy until a few days ago, he started having random lag spikes.

  At first he just happen when you watch movies (tried 4 different programs, all reinstalled the driver, scanned for malware, defragmented, you name) and then she started to occur outside the viewing of film aswell. Who did it for me, and I installed Windows XP. I did 3 times now, clean install it Windows XP. Initially, it seemed fine. For a few hours, and then it started lagging really bad, not like in Windows 7, but the CPU usage is jumping all over the boundaries between 1% and 99% at random, but there is no process to take it!

  He lags behind what I do, just open the Notepad can blow. I thought that it would work with a format clean, but no, of course the problem reoccured. It might be drivers, see problems in Windows 7 and XP are somewhat different. I'm in my intelligence ends here on what to do, whatever that is would be helpful.

  Hey Buddy,

  Looks like on your laptop is a background passes process that is causing this different and high CPU usage.

  What happens if you install Windows 7 Toshiba Recovery disk and look in the Manager of tasks? Directly after this installation, you should have a low CPU usage and stable because it s installation of Windows from Toshiba.

• Satellite P100-219: model seesaw in the CPU usage graph / wireless switch

  Has anyone noticed a trend sawtooth in the graph of CPU usage (quickly repeat that 10% performance spikes) in idle operation? Crampons disappeared after I switched the wireless (WLAN & BT) light...

  Hello

  Usually, if the 3rd program tries to connect to the WLan or the BT will increase the CPU usage. It s not easy to say why it happens because no one knows what you have installed on your laptop, or what settings unique applications have.

• Q180 high CPU usage problem

  My new Q180 shows CPU usage by at least 40% all the time in the Windows 7 Task Manager. Sysinternals Process Explorer show that this is due to more than 25% of material interruptions happening all the time.

  Everyone sees these problems / symptoms?

  
  

• FIFO DMA read high CPU usage

  Hi al, it's a long!

  I noticed a strange behaviour when I read from a FIFO DMA between FPGA and RT host on my crio (9014 controller and 9104 bottom of basket). The FPGA is writing data to the FIFO 2 points every millisecond and the loop of the RT is the reading of 500 data points each loop of the MS 250 CR period is controlled using the hold until the next ms multiple function.

  Wait until the next use means ms that during the first round, the wait will be not so I gave the FIFO DMA read method a timeout of 750ms to allow data points to accumulate on this first iteration.

  I then ran the VI and it read the data as planned and it was always 0 in the FIFO. Then using the system monitor, I noticed the CPU usage on the RIO and was surprised to see that it was 30% !

  After a lot of puzzle and many other attempts as to set the timeout to zero if delays fair read until here, I've decided are enough data points and then executes a little behind so that there is always a constant number (non-zero) of data points in the FIFO. Now, the VI runs and only use about 3% CPU.

  I thought that in the first case as I read exactly the number of points in the FIFO that I was tripping some kind of voting behavior in the playback feature which has been hogging the cpu.

  So I ran a business with a zero time-out, where I was reading with 0 points of data to the left in the FIFO as in the first case and waited to see if the delay of read but it never does and the CPU usage is normal.

  So what's happening? I'm puzzled!

  Thank you

  Steve.

  Hi Steve,.

  I think I can explain the use processor behavior that you are experiencing:

  Case 1: Loop with nonzero time-out

  -Your code starts with wait a multiple ms: This means that a 0-250 ms timeout occurs (on average 125 ms)

  -Then your code tries to read 500 data points in the DMA FIFO (if 500 points come in every 250 ms). All data cannot be presented yet.

  -If 500 points are not yet ready, polling occurs until they are. During the time of the poll, the CPU usage is high. Finally, the data is read.

  -The next iteration of the loop begins.

  -The code is now expected up to 250 ms after the last function call until the next ms Multiple. Roughly the same amount of data should be available by the end of this expectation as in the last iteration. Therefore, the question about the next FIFO DMA read should be roughly the same, and the CPU usage will remain high.

  Case 2: Loop with zero time-out

  -In your code, immediately after the first call to wait until the next multiple ms, you "synchronize" by reading all the remaining data from the FIFO.

  -In the next iteration of the loop, we can expect the call until the next ms Multiple wait the entire 250 m means that the data DMA FIFO (discount jitter) should be ready. If jitter is low enough, this will result in delays very little of the read DMA FIFO and a low CPU usage.

  I would recommend either using a timed loop and read the exact number of data points available (if your application can handle variable size data sets), or using a while loop as you are and make sure that the loop priorities are defined such that the CPU usage high does not affect critical functionality.

  Thank you for the very good question; I personally really like thinking through these issues! Please let me know if you have any questions that deserve further discussion and have a nice day!

  Kind regards

  Casey Weltzin

  Product Manager, LabVIEW Real-time

  National Instruments

• Svchost.exe causing 100% cpu usage during the update of windows, even when disconnected.

  I recently had to re - install windows xp on a new hard drive for replacement. My version of xp home edition, SP2 OEM installation disc. (This is ith group included IE6)

  Once installed and running, could access windows update.

  Read all the threads associated etc. and installed SP3, disc after downloading microsoft on another pc. Installed after three trys, first two caused various mistakes, but third attempt seems OK!

  I've also updated the IE6 to IE8, as some sites obviously did not work properly with the older browser.

  Now go do the automatic updates, or log for manual updates... BUT!

  During the process, my cpu fan comes on fast and permanently! The CPU usage is showing that 100%, pc slows to crawl, the mouse becomes slow etc.

  This has never happened before on this machine before you reinstall clean, he had already automatically updated to SP3 and went very well, it was some time ago, before the failure of hard drive, and it has never had this problem!

  Only since having to do a cleaning manual update and re - install.

  The culprit seems to be svchost.exe, once it is used by the update, running the cpu at 100% and continues to do so EVEN after stopping the service, until I manually stop with the Task Manager!

  The svchost.exe instance showing a high is use: SYSTEM.

  According to the files of help here, it is a known issue and a fix KB927891 was issued for SP2, but this should NOT be necessary for SP3, and in fact difficulty used to perform anyway under SP3!

  Ideas for a guy to fix?

  I appreciate the support for XP runs out quickly, and after this update of windows will be redundant, but in the meantime it is always useful!

  Also if I turn off the automatic updates, how can I stop this annoying popup warning bubble?... I can't live without updating, but this bubble nag drives you nuts! :)

  OK just a update, now running cool and 100% auto update and manual update... How? I hear you ask...

  Well I had a beer and a reflection and came to the conclusion, it must be 'order' in which I updated the clean installation of XP.

  Origin, I loaded the old OEM disc new hard disk, loaded the drivers etc, then stop at windows update for updated files.

  Who told me my old incompatible browser and suggested an upgrade.

  I downloaded and installed IE8... still no joy, reading the forums comments I downloaded and installed SP3... which SEEMED to work, BUT then all the hassle of cpu to 100% with the automatic update and updated manual on the windows don't update site!

  So I just gritted my teeth, formatted the drive, another OEM of XP Home Edition SP2 installation loaded the drivers, installed a copy saved to SP3 and after restarting, THEN installed a saved copy of IE8 and THEN trotted off the coast to the windows update site... low and behold, it the connection without problem, did a search, and required updates appeared on the screen without delay all 123 of them...! :)

  Did the updates, restarted and everything was fine, updates automatic in market and left the machine, after about 30 minutes appears the yellow shield, and it downloads a couple more update files without problem.

  All this time I followed the via the Task Manager CPU usage and the strange spike waited 100% apartment, it was on average from 5 to 20%!...so a great improvement has this effect, by simply changing the order of the updates installed from the original! SP3 IE before IE8.

  May not work for all have to do a clean install because of the HD failed, but its worked for me, and I am once more a "happy bunny!

  Dave was soon.

• High CPU usage while browsing with flash content more

  I know that this can cause a several times but still problem persists even after the rest of most of the stages (analysis of malware, disabling content flash etc.). MY model is certainly an old one 910 series motherboard intel with onboard graphics card intel 128 MB running windows xp professional service pack 3. I have recent changes to the system, but that it faces from the 1 of the past month, I started. Flash games used to work properly without lag and without using a lot of CPU, but for a 1 month, he started late as * and CPU spikes almost at 100%, while the jumps game and even during web browsing with flash content and decreases rapidly after you load the page completely. I tried to disable hardware acceleration but still problem. Hope that I find the solution earlier. Thanks in advance.

  Hi Vijay,

  1. Exactly how you try to play the games? Games online or offline?
  2. If you are referring to online games so what web browser are you using to play the games?

  If you use internet Explorer, then, refer to the following.

  When you browse a Web page in Microsoft Internet Explorer, the CPU usage meter in Task Manager may indicate 100% CPU usage. Because of this behavior, other programs may slow down or crash. For example, if you read a video DVD, an audio DVD or audio CD while you scroll through a Web page, you may strain video or audio.

  This problem may occur on some computers if the option of scroll smooth use is enabled in Internet Options.

  Note By default, the use smooth scrolling option is enabled in Internet Explorer.

  To work around this problem, disable the option of scroll smooth use in Internet Explorer. To do this, follow these steps:

  (a) click the Start button and then click Control Panel.

  (b) in the Control Panel, make sure you are in Classic view, with all the control panel display icons. If this is not the case, click switch to Classic view in the left pane of the control panel.

  (c) click Internet Options to open the Internet Options dialog box. Click the Advanced tab and scroll down to the settings: navigation on topic. Select or clear the Use smooth scrolling check box.

  (d) click OKand then click the close button.

  http://Windows.Microsoft.com/en-in/Windows-XP/help/turn-off-smooth-scrolling

  Please post back with the State of the question.

• memory leak Winlogon.exe and high CPU usage

  I use Windows XP SP3. I'm leaking memory in winlogon.exe (about 5 M/hour). In addition, the CPU usage spikes to 50% of all 6 seconds. The file is properly signed so probably not a virus.

  This problem started after the application of last weeks patches.

  I seriously doubt that winlogon has a memory leak or people around the world would be screaming about it... and they are not.

  If this is what a thing look like, then you have another problem - probably a malware infection, or what you are currently using antivirus/antimalware protection is afflicted.

  Looking at previous answers, I would say that McAfee is afflicted, and it is already a well know that McAfee is a memory and CPU hog and you may want to consider replacing with something of less intrusive as Microsoft Security Essentials (do you use McAfee?).

  Since the Microsoft Answers forum does not have any kind of information system request when a new question is asked, we know absolutely nothing about your system.  Not knowing the basic information a problem prolongs the frustration and the agony of these issues.

  Thank you MS Answers, allowing the resolution of simple problems as frustrating and a lot of time as possible.

  Provide information on your system, the better you can:

  What is your system brand and model?

  What is your Version of XP and the Service Pack?

  What is your Internet browser and version?

  Describe your current antivirus and software anti malware situation: McAfee, Symantec, Norton, Spybot, AVG, Avira!, MSE, Panda, Trend Micro, CA, Defender, ZoneAlarm, PC Tools, Comodo, etc..

  What do you see (exactly) that you don't think you should see, and when you see it?

  If the system works, what do you think might have changed since the last time it did not work properly?

  No matter what you use for malware protection, follow these steps:

  Download, install, update and do a full scan with these free malware detection programs at:

  Malwarebytes (MMFA): http://malwarebytes.org/

  SUPERAntiSpyware: (SAS): http://www.superantispyware.com/

  They can be uninstalled later if you wish.

  The scans by operating clean, restart and fix any problems.

• Bad battery will cause a high CPU usage?

  Recently, my computer became VERY slow.  I have a Dell XPS 1330 with windows vista.  Computer ran great and all of a sudden, everything had been delayed.  When I type, it takes forever to actually appear on the computer.  I looked online and saw that it may be due to the high utilization of the processor (mine was about 95%).  So I did what one of the solutions was and typing 'msconfig' in 'run' and some of these disabled startup options.  This has contributed to some but it's still very slow, and the CPU usage is back after only 3 to 5 days.

  I wonder if that means that I may have a virus, or whether it could be due to a defective battery.  I have the original supplied with the computer (WR050) battery and it has reached its limit, now works only if it is plugged.  I work on the search for a new battery, but I was wondering if this could be the problem with my computer SLOW terribley or if it's something more...

  Try to uninstall all of the programs you don't need and if it does not restore your system (backup your data first) to your oldest restore point. It is almost certain to succeed.

  Antivirus how do you have? If more then one, uninstall those that you don't use often. This should speed up your system from 20 to 50%.

• Oh, the irony? High DPC latency with idle CPU - gives more stable, more low-latency DPC CPU usage 100%

  Just like in the title,

  I tried everything, disabling components, elimination of most of my RAM, update BIOS and loading failsafe and optimized defaults, etc. - and one thing I noticed is that Prime95 running x 64 on all hearts eliminates the peaks high in 1.2.0 DPC latency checker. Audio stuttering, what original research for corrections me, brought me to DPC latency checker.

  It's really strange that the 100% CPU usage would cause the DPC latency stabilize (mine hovers around 350-450 microseconds in the full use of the CPU, but in use slowed parameters or moderate apparently something causes a DPC peak at ~ 4100us max).

  Let me know if you figured it out!

  Model name : GA-EP45-UD3P(rev. 1.6)
  --------------------------
  M/B Rev : 1.6
  BIOS Ver : FE
  Purchase garage : Newegg.com
  -------------------------------------------------------------------------------
  Brand VGA : ATI model : 5770
  Brand CPU : Intel model : Quad 9400 speed : 2.66
  Operating system : Win 7 64 bit SP :
  Brand memory : G.SKILL Type : DDRII
  Memory size : 4 GB, speed : 800
  Power supply : Antec Neopower 550 W

  Hi Frankie,

  We understand that you too met the same scenario as this 6 year old thread. Some resolutions are always topical, while others are no longer applicable due to constant updates and corrections in the course of the last years.

  However, to resolve your concern, you can view article utilization of the processor for Windows 7 .

  Let us know how it goes.

• The CPU usage goes to 100% when running any application.

  Hi all

  Please help me with this problem. I recently updated my system from windows xp service pack 3 for windows 7 Professional. But I'm having a problem with my CPU usage. My PC starts normally and continue to operate with a processor of 2-3%, but when I run an application or process as a copy, extract, play videos or MP3s etc... He spent almost at 100%. If I quit the application, it will return to normal with 2-3% of CPU usage. I searched the whole windows forums and have seen a lot of answers about the same topic, but none of them relates to the problems of mines.  o please help me with it...
  My system configuration:
  Intel processor Dual Core
  2 GB RAM DDR2
  320 hard drive
  8129 Intel chip-set

  Hi Arun,

   

  Thanks for posting your query in Microsoft Community.

  From your description, it seems that you receive 100% CPU usage when using any application on your computer.

  I'll be happy to help you. This problem could be caused due to the performance and maintenance of the computer system.

  I suggest to follow the steps below and we update on the State of the question.

  Method 1:

  To optimize the performance of Windows, try to use the resolution of Performance problems to automatically find and fix problems.

   

  Open the troubleshooter of Performance:

  http://Windows.Microsoft.com/is-is/Windows7/open-the-performance-Troubleshooter

   

  Method 2:

  To perform common maintenance tasks in Windows, such as cleaning shortcuts and unused files, try to use the resolution of the problems of Maintenance of the system automatically find and solve problems.

   

  Open the troubleshooting of System Maintenance Utility:

  http://Windows.Microsoft.com/is-is/Windows7/open-the-system-maintenance-Troubleshooter 

   

  Method 3:

   

  Follow the steps in the link below.

   

  Optimize Windows 7 for better performance:

  http://Windows.Microsoft.com/en-us/Windows7/optimize-Windows-7-for-better-performance

  Important: Running chkdsk on the drive if bad sectors are found on the disk hard when chkdsk attempts to repair this area if all available on which data can be lost.

  Note: The data files that are infected must be cleaned only by removing the file completely, which means that there is a risk of data loss.

  Method 4:

   

  Follow the steps in the link below.

   

  Ways to improve your computer's performance:

  http://Windows.Microsoft.com/is-is/Windows7/ways-to-improve-your-computers-performance

  Important: Running chkdsk on the drive if bad sectors are found on the disk hard when chkdsk attempts to repair this area if all available on which data can be lost.

  Note: When you restore the system to a previous state, programs and updates installed later will be deleted.

   

  For all windows questions do not hesitate to contact us and we will be happy to help you.

• Problem with the Ubuntu CPU usage

  Hello

  We meet a few the next problem with an Ubuntu VM:

  The virtual machine has 8 vCPU (increased from 2 Sockets with 4-core to 8 outlets with a carrot) and the latest VMware tools installed. Even if there is a lot of load on this system, the virtual machine seems to use about 25% to 50% of CPU capacity. The return of the command vmstat 1 during this time is:

  user: 28%

  system: 4%

  inactive: 78%

  wait: 0%

  VCenter statistics shows a spike on the CPU load, but epi only climbs and rest between 25 and 50 percent or a maximum use of 7 309 MHz (about 16,000).

  

  Here are some features of the environment and the virtual machine:

  Server:

  VMware ESXi 5.5

  VMware vCenter 5.5

  HP ProLiant DL380p Gen8

  • 2 x Intel Xeon E5-2620 @ 2.00 GHz
  • 96 GB OF RAM
  • QNAP-TS-869U-RP via iSCSI

  VM:

  12.04.4 of Ubuntu LTS (GNU/Linux x86_64 from 3.8.0 - 36-generic)

  VM-Version 8

  8 vCPU

  8 GB vRAM

  Updated version of the VMware tools installed

  What can we do to improve the virtual machine CPU usage?

  Please let me know if you need further information.

  Thanks in advance

  Christian

  Since a thread can use 100% of a vCPU it may be a problem of thread on your application.

  You should look at the use of the individual processor instead of overall consumption.

  Lets say that the application can use only 1 wire but it uses 100%, this means that it will use to 12.5% of the total cpu resources allocated to this virtual machine. (100/8)

  Linjo

• script of PowerCLI to capture cpu usage statistics &amp; individual VM mem

  Hello

  Is it possible to know or to get cpu usage statistics & mem of individual virtual machines for the last 5 days through PowerCli and export to CSV report

  Thank you

  vmguy

  Is this a new virtual machine running was not long?

  Or has it been turned off for an extended period?