I would suspect something misconfigured about the 10GbE interface, maybe even misconfigured in ESXi, but using iperf between FreeNAS and Ubuntu (in either direction) I get 4gbps no problem.? I'd be thrilled to get even half that moving real data across, which would be more than 3x what I'm actually getting now.
#VMWARE WORKSTATION 12 SLOW PERFORMANCE WINDOWS#
I can't for the life of me understand why a point to point transfer over the 10GbE network goes even slower than this drag and drop over 1GbE through Windows and multiple switches. It uses the 1GbE network instead of the 10GbE network, but manages to run ~15% faster, clearly limited by the 1GbE interface on the Windows machine. So the limit is definitely not CPU/mem on the old server, it must be something about the 10GbE network path?ħ.) Using a Windows workstation on the 1GbE network, mount both old and new servers' Samba shares, then drag and drop folders from old to new = 90 MBps The usage stayed around 30% on Ubuntu, and speed didn't improve at all.Ħ.) SSH into Ubuntu and do Step #1 three times on three different folders, hoping to get ~3x aggregate speed (ie: parallel transfers)ĬPU utilization on Ubuntu went up to 60-70% or so, as expected, but transfer speed ended up being split between the three, totaling 80MBps, the same as before. The above result seems to show that it's not a CPU limitation. Basically #5 is #1 in reverse, hoping to offload everything but the actual data movement from Ubuntu. The CPU usage on Ubuntu was never higher than 30-35% during any of the above methods, but I thought I'd try moving some execution off to FreeNAS instead since it's a beefier server. I didn't expect 'cp' to be fast, but I did it for the heck of it.ĥ.) Mount the Ubuntu share under FreeNAS using mount_smbfs, run rsync on FreeNAS as a "local" transfer = 75-80 MBps
The above two show it's not a limitation of rsync, I think, since 'dd' runs the same speed.
Presumably because it skips the SSH tunnel, encryption, etc.ģ.) Mount the FreeNAS pool under Ubuntu using NFS, run dd on Ubuntu = 75-80 MBpsĤ.) Mount the FreeNAS pool under Ubuntu using NFS, run cp on Ubuntu = I forget the speed, but it wasn't any higher, might have been a little lower Here are several of the things I've tried, with some notes/thoughts about what I think it tells me:ġ.) Mount the FreeNAS pool under Ubuntu using NFS, run rsync on Ubuntu as a "local" transfer = 75-80 MBpsĢ.) Don't mount anything, run rsync on Ubuntu as a "remote" transfer to = 35-40 MBpsĬlearly mounting the share and doing a local transfer is faster. I've confirmed that the transfer is using the 10GbE path (both FreeNAS & Ubuntu show traffic on the 10GbE interfaces, not on the 1GbE), but I can't get the speed up no matter what I've tried. In any case, I've tried about a dozen different ways to copy the data from the old server to the new, but almost all of them max out at 75MBps (600mbps) or less. I'm happy with that, it's a limitation of virtualizing the NIC in ESXi instead of passing it through. There's a point to point 10GbE cable between them, and when I run iperf in either direction it measures 4gbps. Shut down (Power Off) your virtual machine before taking a snapshot.I built a new FreeNAS (on ESXi) server, 11.2, and I'm trying to copy all the data from my old Ubuntu server to it.
#VMWARE WORKSTATION 12 SLOW PERFORMANCE INSTALL#
VMWare tools can be installed under the menu VM -> Install VMWare Tools… You must install VMWare tools to have this feature.
– After installing VMWare tools, you can drag and drop files between your host and the virtual machine. VMWare Tools can help you solve that problem. However, IDE disks can be very slow in a guest operating system that either cannot use or is not set to use DMA. – Inside a virtual machine, SCSI disks and IDE disks that use direct memory access (DMA) have approximately the same performance. On a Windows NT or Windows 2000 host, be sure the check box beside Run with Debugging Information is cleared. On a Linux host, be sure the logging level is set to Normal.ģ. Check your Settings > Configuration Editor > Misc.Ģ. Virtulal machines will run a bit slower if they are running in debugging mode.ġ. On a Windows NT or Windows 2000 host, go to Settings > Global Preferences > Memory. On a Linux host, go to Settings > Total Reserved Memory. If you plan to run one virtual machine at a time most of the time, a good starting point is to give the virtual machine half the memory available on the host.
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