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    Uploading an image from Hyper-V is extremely slow

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    • george1421G
      george1421 Moderator @ch3i
      last edited by george1421

      @ch3i said:

      @loosus456 Hi, the 600MB/min looks like a FastEthernet speed, not a Giga.

      I agree with ch3i’s conclusion. 600MB/min translates to 10MB/s which is just below 100Mhz (fast) ethernet’s theoretical max of 12.5MB/s.

      If this was a GbE network, I might expect slightly less than 125MB/s or (7GB/min) transfer rates. As you noted with physical hardware I would expect between 4-6GB/m download rate with less depending on the hardware and compression ratio on the upload side.

      I would be sure to update FOG first then check your network path for a 100Mhz links.

      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

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      • A
        Andy Abplanalp Developer @A Former User
        last edited by

        @loosus456 does this server have Broadcom NICs in it by chance? If so, you can look into disabling Virtual Machine Queues.

        0_1458564913149_vmq.png

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        • ?
          A Former User @ch3i
          last edited by

          Haven’t had a chance to look at everything just yet, but the version of FOG is 6321.

          In regards to it being FastEthernet: it sometimes bursts as high as gig does, which is what makes me believe there is an issue.

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          • S
            Sebastian Roth Moderator
            last edited by

            @loosus456 Any news on this? Did you have time to look into all the suggestions and try things out?

            Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

            Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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            • R
              rdw @A Former User
              last edited by

              @loosus456 Any resolution? Exact same symptoms here. Thanks.

              Wayne WorkmanW 1 Reply Last reply Reply Quote 0
              • Wayne WorkmanW
                Wayne Workman @rdw
                last edited by

                @rdw I remember that there is a specific linux kernel argument for Hyper-V. I would guess that this would really help out - definitely wouldn’t hurt anything. I’ll see if I can find it…

                Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                Daily Clean Installation Results:
                https://fogtesting.fogproject.us/
                FOG Reporting:
                https://fog-external-reporting-results.fogproject.us/

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                • Wayne WorkmanW
                  Wayne Workman
                  last edited by

                  https://technet.microsoft.com/en-us/library/dn720239.aspx

                  Since FOS (fog operating system) is linux, all that stuff could apply potentiall.

                  There is a kernel argument though. I have to get on a actual computer to find it…

                  Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                  Daily Clean Installation Results:
                  https://fogtesting.fogproject.us/
                  FOG Reporting:
                  https://fog-external-reporting-results.fogproject.us/

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                  • sudburrS
                    sudburr
                    last edited by sudburr

                    If it is Hyper-V 2012 R2 and you are running a Generation 1 VM which uses the Legacy Network Adapter for PXE booting then 100 Mb is all you will get as the Legacy Network Adapter is only a 100 Mb NIC.

                    Having said that, some kernels in the past have on occasion switched to the 1Gb NIC for uploading … including right now. I just rolled back to 4.1.4 from 4.6.2 and I’m getting Gb.

                    [ Standing in between extinction in the cold and explosive radiating growth ]

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                    • Wayne WorkmanW
                      Wayne Workman
                      last edited by

                      I know it’s been a while, but I just came across this: http://www.funtoo.org/HyperV_Kernel_Configuration

                      These are the Hyper-V kernel arguments listed on that page, just so they aren’t lost in the depths of the internet:

                      HyperV Kernel Configuration

                      For a Hyper-V generation 2 system, you’ll need certain options enabled in the Kernel in this order because latter options aren’t available until earlier options are enabled:

                          CONFIG_HYPERVISOR_GUEST: Processor type and featueres > Linux Guest Support
                          CONFIG_PARAVIRT: Processor type and features > Linux Guest Support > Enable paravirtualization code
                          CONFIG_PARAVIRT_SPINLOCKS: Processor type and features > Linux Guest Support > Paravirtualization layer for spinlocks
                          CONFIG_HYPERV: Device Drivers > Microsoft Hyper-V guest support > Microsoft Hyper-V client drivers
                          CONFIG_HYPERV_UTILS: Device Drivers > Microsoft Hyper-V guest support > Microsoft Hyper-V Utilities driver
                          CONFIG_HYPERV_BALLOON: Device Drivers > Microsoft Hyper-V guest support > Microsoft Hyper-V Balloon driver
                          CONFIG_HYPERV_NET: Device Drivers > Network device support > Microsoft Hyper-V virtual network driver
                          CONFIG_HYPERV_STORAGE: Device Drivers > SCSI device support > SCSI low-level drivers > Microsoft Hyper-V virtual storage driver
                          CONFIG_HYPERV_KEYBOARD: Device Drivers > Input device support > Hardware I/O ports > Microsoft Synthetic Keyboard driver
                          CONFIG_FB_HYPERV: Device Drivers > Graphics support > Frame buffer Devices > Microsoft Hyper-V Synthetic Video support
                          CONFIG_HID_HYPERV_MOUSE: Device Drivers > HID support > Special HID drivers > Microsoft Hyper-V mouse driver
                      

                      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                      Daily Clean Installation Results:
                      https://fogtesting.fogproject.us/
                      FOG Reporting:
                      https://fog-external-reporting-results.fogproject.us/

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                      • S
                        Sebastian Roth Moderator
                        last edited by

                        @Wayne-Workman This is what we have in the current config:

                        grep -e HYPERV -e PARAVIRT TomElliott.config.asc 
                        CONFIG_HYPERVISOR_GUEST=y
                        CONFIG_PARAVIRT=y
                        # CONFIG_PARAVIRT_DEBUG is not set
                        # CONFIG_PARAVIRT_SPINLOCKS is not set
                        # CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
                        # CONFIG_PCI_HYPERV is not set
                        # CONFIG_SYS_HYPERVISOR is not set
                        CONFIG_HYPERV_STORAGE=y
                        CONFIG_HYPERV_NET=y
                        CONFIG_HYPERV_KEYBOARD=y
                        CONFIG_FB_HYPERV=y
                        # CONFIG_HID_HYPERV_MOUSE is not set
                        CONFIG_HYPERV=y
                        CONFIG_HYPERV_BALLOON=y
                        

                        Are you keen to compare those and let us know if we should any option.

                        Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                        Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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                        • Scott AdamsS
                          Scott Adams
                          last edited by

                          Any update on this? I have just started universal imaging using Hyper-V, which is working great. However, the upload speed from VM to FOG-server is slow. Currently uploading now, and am getting >300MB/min

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