Workstation 9: USB utterly slow - please fix! (Or do I need to change a setting?)

[WhiteKnight]

Using an USB stick, copy transfer rate in my virtual machine is (seriously) 14.6 KB/Sec. !! Perfoming the same copy operation in my host OS it's 379 KB/Sec.

That's 25 times slower in the VM !!! (Incredible, but true)

This performance can be serious... What's going wrong here?

[NarendarKT]

mostly its an issue related to you memory .

pls let me know your configuration details of your hardware.

[zXi_Gamer]

copy transfer rate in my virtual machine is (seriously) 14.6 KB/Sec. !! Perfoming the same copy operation in my host OS it's 379 KB/Sec.

Well, to rule out the basic topics, is your host OS having USB3.0 while your VM is running USB 2.0?

Apart from usb copy, do you face this issue even with network copy difference between host and VM, this will rule out the disk access problems?

Again, config details might be needed to ascertain

[WhiteKnight]

@ Gamer:

Neither my machine nor my OSs support USB 3.0. It's all USB 2.0

Here's my VM's configuration:

.encoding = "windows-1252"

config.version = "8"

virtualHW.version = "9"

vcpu.hotadd = "TRUE"

scsi0.present = "TRUE"

scsi0.virtualDev = "lsisas1068"

memsize = "2048"

mem.hotadd = "TRUE"

scsi0:0.present = "TRUE"

scsi0:0.fileName = "xxx, Win2k8R2 - C-000002.vmdk"

ide1:0.present = "TRUE"

ide1:0.autodetect = "TRUE"

ide1:0.deviceType = "cdrom-raw"

ethernet0.present = "TRUE"

ethernet0.connectionType = "nat"

ethernet0.virtualDev = "e1000"

ethernet0.wakeOnPcktRcv = "FALSE"

ethernet0.addressType = "generated"

usb.present = "TRUE"

ehci.present = "TRUE"

ehci.pciSlotNumber = "35"

sound.present = "TRUE"

sound.virtualDev = "hdaudio"

sound.fileName = "-1"

sound.autodetect = "TRUE"

serial0.present = "TRUE"

serial0.fileType = "thinprint"

pciBridge0.present = "TRUE"

pciBridge4.present = "TRUE"

pciBridge4.virtualDev = "pcieRootPort"

pciBridge4.functions = "8"

pciBridge5.present = "TRUE"

pciBridge5.virtualDev = "pcieRootPort"

pciBridge5.functions = "8"

pciBridge6.present = "TRUE"

pciBridge6.virtualDev = "pcieRootPort"

pciBridge6.functions = "8"

pciBridge7.present = "TRUE"

pciBridge7.virtualDev = "pcieRootPort"

pciBridge7.functions = "8"

vmci0.present = "TRUE"

hpet0.present = "TRUE"

displayName = "xxx, Win2k8R2"

guestOS = "windows7srv-64"

nvram = "xxx, Win2k8R2.nvram"

virtualHW.productCompatibility = "hosted"

powerType.powerOff = "soft"

powerType.powerOn = "soft"

powerType.suspend = "soft"

powerType.reset = "soft"

extendedConfigFile = "xxx, Win2k8R2.vmxf"

scsi0:1.present = "TRUE"

scsi0:1.fileName = "xxx, Win2k8R2 - D.vmdk"

scsi0:1.mode = "independent-persistent"

mks.enable3d = "TRUE"

chipset.useAcpiBattery = "TRUE"

mks.keyboardFilter = "allow"

chipset.useApmBattery = "TRUE"

tools.syncTime = "TRUE"

ide1:0.fileName = "auto detect"

scsi0.pciSlotNumber = "160"

ide1:0.startConnected = "TRUE"

ethernet0.generatedAddress = "00:0c:29:cc:ee:55"

ethernet0.pciSlotNumber = "33"

usb.pciSlotNumber = "32"

sound.pciSlotNumber = "34"

vmci0.id = "327793552"

vmci0.pciSlotNumber = "36"

uuid.location = "56 4d f9 c6 4d 0c e5 e3-4f fb ce 59 c3 c6 e6 5c"

uuid.bios = "56 4d f9 c6 4d 0c e5 e3-4f fb ce 59 c3 c6 e6 5c"

cleanShutdown = "FALSE"

replay.supported = "FALSE"

unity.wasCapable = "TRUE"

replay.filename = ""

scsi0:0.redo = ""

scsi0:1.redo = ""

pciBridge0.pciSlotNumber = "17"

pciBridge4.pciSlotNumber = "21"

pciBridge5.pciSlotNumber = "22"

pciBridge6.pciSlotNumber = "23"

pciBridge7.pciSlotNumber = "24"

scsi0.sasWWID = "50 05 e5 05 4d 66 0c e0"

usb:1.present = "TRUE"

ethernet0.generatedAddressOffset = "0"

tools.remindInstall = "TRUE"

vmotion.checkpointFBSize = "134217728"

softPowerOff = "FALSE"

usb:1.speed = "2"

usb:1.deviceType = "hub"

usb:1.port = "1"

usb:1.parent = "-1"

checkpoint.vmState = ""

hgfs.mapRootShare = "TRUE"

isolation.tools.hgfs.disable = "TRUE"

sharedFolder.maxNum = "0"

policy.vm.mvmtid = ""

vc.uuid = ""

scsi0:2.present = "TRUE"

scsi0:2.fileName = "xxx, Win2k8R2 - E.vmdk"

scsi0:2.mode = "independent-persistent"

scsi0:2.redo = ""

floppy0.present = "FALSE"

sharedFolder0.present = "FALSE"

usb.autoConnect.device0 = ""

usb:0.present = "TRUE"

usb:0.deviceType = "hid"

usb:0.port = "0"

usb:0.parent = "-1"

[zXi_Gamer]

Is the copy operation going to the OS disk or to the 2 additional disks in your VM?

[WhiteKnight]

The copy operation is copying files from D:/ to the USB stick.

When connecting the USB stick to the host and assigning a Shared Folder to it, copying the same files is even slower!

Not only it takes minutes(!) before the actual copy operation (about 300 files) begins, after copying has started, the VM hardly runs. I'm sitting here waiting for the VM to respond to my keyboard/mouse input... Almost same for my host OS. But the host OS still is more responsive.

Moreover, average copy speed is 12.1 KB/Sec.

Unbelievable...