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    CPU Spikes in a Hyper-V VM

    IT Discussion
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    • garak0410G
      garak0410
      last edited by

      And yes...horrid performance problems, especially when it was at 99%. Taking forever for end users to access files on the shared drives.

      1 Reply Last reply Reply Quote 0
      • scottalanmillerS
        scottalanmiller
        last edited by

        Is that a Sybase DB running? That is a lot of CPU there.

        garak0410G 1 Reply Last reply Reply Quote 0
        • scottalanmillerS
          scottalanmiller
          last edited by

          How many vCPU do you have assigned?

          1 Reply Last reply Reply Quote 0
          • Bill KindleB
            Bill Kindle
            last edited by

            Are you doing full scans or targeted scans? Do you have any files/folders in the exclusion list?

            garak0410G 1 Reply Last reply Reply Quote 0
            • garak0410G
              garak0410 @scottalanmiller
              last edited by

              @scottalanmiller said:

              Is that a Sybase DB running? That is a lot of CPU there.

              That is the DB for Symantec SEP...again, currently not running...

              It just happened again now:

              cpu03.jpg

              We are running 2 virtual processors.

              1 Reply Last reply Reply Quote 0
              • garak0410G
                garak0410 @Bill Kindle
                last edited by

                @Bill-Kindle said:

                Are you doing full scans or targeted scans? Do you have any files/folders in the exclusion list?

                Currently, Anti-Virus services are off. Going to check the settings again tonight when I turn it back on after hours...

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                • garak0410G
                  garak0410
                  last edited by

                  Should I give it 4 CPU's? Is that not excessive for just a file server, albeit heavily used one?

                  scottalanmillerS 1 Reply Last reply Reply Quote 0
                  • PSX_DefectorP
                    PSX_Defector
                    last edited by

                    You should be giving less vCPUs, not more.

                    garak0410G 1 Reply Last reply Reply Quote 0
                    • garak0410G
                      garak0410 @PSX_Defector
                      last edited by

                      @PSX_Defector said:

                      You should be giving less vCPUs, not more.

                      So perhaps try one tonight?

                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller @garak0410
                        last edited by

                        @garak0410 said:

                        Should I give it 4 CPU's? Is that not excessive for just a file server, albeit heavily used one?

                        Not likely. But it depends on many factors.

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                        • scottalanmillerS
                          scottalanmiller @garak0410
                          last edited by

                          @garak0410 said:

                          @PSX_Defector said:

                          You should be giving less vCPUs, not more.

                          So perhaps try one tonight?

                          Very un

                          @garak0410 said:

                          @PSX_Defector said:

                          You should be giving less vCPUs, not more.

                          So perhaps try one tonight?

                          very unlikely to be the culprit but doesn't hurt to try.

                          garak0410G 1 Reply Last reply Reply Quote 0
                          • scottalanmillerS
                            scottalanmiller
                            last edited by

                            Weird posting thing there.

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                            • garak0410G
                              garak0410 @scottalanmiller
                              last edited by

                              @scottalanmiller said:

                              @garak0410 said:

                              @PSX_Defector said:

                              You should be giving less vCPUs, not more.

                              So perhaps try one tonight?

                              @garak0410 said:

                              @PSX_Defector said:

                              You should be giving less vCPUs, not more.

                              So perhaps try one tonight?

                              very unlikely to be the culprit but doesn't hurt to try.

                              Got to try something...because I am taking 1/2 day off tomorrow...LOL. Will try tonight...

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                              • scottalanmillerS
                                scottalanmiller
                                last edited by

                                Important to consider that malware is a possibility. Do a scan with some third party scanners to improve confidence. Such a new system, unlikely to be infected but you never know.

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                                • NaraN
                                  Nara
                                  last edited by

                                  If you bring up performance monitor, what files are being written/read? Even if the disk activity is relatively low, it gives you an idea of what the process is doing by the files it's interacting with.

                                  garak0410G 1 Reply Last reply Reply Quote 1
                                  • garak0410G
                                    garak0410
                                    last edited by

                                    It had no malware.

                                    So, powered it off and took away a virtual CPU.

                                    It took forever and a day to boot up and even when I finally got a login screen, it takes forever to get its services started (Welcome, Policy Registration, Local Session Manager takes forever to come up). Then a black screen for a good while and finally the desktop. And waiting and waitng for it to let me input. Server Manager creeps to a start. The right click I did on the task bar so I could get the task manager took over a minute to give me the context menu...finally got task manger up and for sure, back to 99% CPU with Symantec and Service Host taking most of it.

                                    This is terrible It has to be some kind of VM setting wrong. But it wasn't this bad yesterday.

                                    I am about to bring up resource monitor but it is taking forever as well...

                                    1 Reply Last reply Reply Quote 0
                                    • garak0410G
                                      garak0410 @Nara
                                      last edited by

                                      @Nara said:

                                      If you bring up performance monitor, what files are being written/read? Even if the disk activity is relatively low, it gives you an idea of what the process is doing by the files it's interacting with.

                                      resourceMonitor01.jpg

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                                      • NaraN
                                        Nara
                                        last edited by

                                        Expand the middle row and sort by total.

                                        1 Reply Last reply Reply Quote 0
                                        • scottalanmillerS
                                          scottalanmiller
                                          last edited by

                                          THis is at night with no one using it?

                                          garak0410G 1 Reply Last reply Reply Quote 0
                                          • NaraN
                                            Nara
                                            last edited by

                                            And what is SDtray?

                                            1 Reply Last reply Reply Quote 0
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