Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Host access now incredibly slow

19 Nov 2009   #1
mxcolin

Windows 7
 
 
Host access now incredibly slow

If I access a shared file on the host through the network the access times are awful. The network performance is crawling along. It takes hours to copy large files. However when accessing other machines on the network the access times are lightning as I'd expect. This slow network performance makes Windows Virtual PC redundant for use as a test bed for servers. Microsoft Virtual PC was superb for this and we seem to have gone backwards. I really don't understand how this could have happened. I can't face getting VMWare.


My System SpecsSystem Spec
.
19 Nov 2009   #2
huisinro

windows 7
 
 

try to configure the vm to have a physical ip, i.e., bridged network. The default NAT is much slower.
My System SpecsSystem Spec
19 Nov 2009   #3
HughShaw

Windows 7 Professional (x64)
 
 

Can we do this on VMLite by changing it to Bridged Adapter or Internet Network?
My System SpecsSystem Spec
.

19 Nov 2009   #4
jimbo45

Linux CENTOS 7 / various Windows OS'es and servers
 
 

Quote   Quote: Originally Posted by mxcolin View Post
If I access a shared file on the host through the network the access times are awful. The network performance is crawling along. It takes hours to copy large files. However when accessing other machines on the network the access times are lightning as I'd expect. This slow network performance makes Windows Virtual PC redundant for use as a test bed for servers. Microsoft Virtual PC was superb for this and we seem to have gone backwards. I really don't understand how this could have happened. I can't face getting VMWare.

Hi - if you don't like vmware -- not sure why as it's fast, efficient and works properly (especially latest release Workstation 7 or the new FREE vmware player) you could always try Virtual Box -- also seems to have good reports on this Forum.

Vmware server - also free is pretty good but you need a bit of expertise to get it going.

The NIC is often a bottleneck in VM guests -- it's hard to design but if the software could be modified to access shared disks directly through the REAL NIC rather than the virtual Network interface then you'd gain a HUGE performance improvmemnt in I/O times.

This type of approach is used in commercial "Thin Servers" such as ESX.

If you must go throw the machines's virtual network then as a previous poster suggests use BRIDGED rather than NAT - at least in this case you shgould get a 1GB / s network transfer through the virtual network (Of course access to other disks on your LAN are dependent on the HOST's network adapter and how fast that can access LAN drives).

Cheers
jimbo.
My System SpecsSystem Spec
19 Nov 2009   #5
huisinro

windows 7
 
 

Quote   Quote: Originally Posted by HughShaw View Post
Can we do this on VMLite by changing it to Bridged Adapter or Internet Network?
Yes, you can also configure network to bridged network in VMLite to improve the performance.
My System SpecsSystem Spec
19 Nov 2009   #6
pparks1

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by mxcolin View Post
This slow network performance makes Windows Virtual PC redundant for use as a test bed for servers.
I'm not sure why, but the performance of Windows Virtual PC is just plain awful. It's just not a very good tool for virtualization. Every other established product is better.

Quote   Quote: Originally Posted by mxcolin View Post
I can't face getting VMWare.
What's wrong with VMWare? Seriously, I use ESX and ESXi at work in production and DEV/QA and it's superb. On my laptop and home machines, I have used VMWare Server 2.0 and now use VMWare Player 3.0 and they are all fantastic products.

I will also second the suggestions to go bridged on the network adapter. NAT is fine if you simply need to gain Internet access from the VM. But if for any reason you need to actually access and transfer files through the local network....going bridged is a far better idea.
My System SpecsSystem Spec
20 Nov 2009   #7
mxcolin

Windows 7
 
 
Bridged

By bridged do you mean select the actual network card rather than Shared network? If so then I already have bridged selected.


The behaviour is extremely strange. Take the example of copying a 20MB file.
  • Copying from the guest to the host from a network share (on the host machine) is instant
  • Copying from the host to the guest from a network share (on the guest machine) is around 12 minutes
  • Copying from the host to the guest from the from the TS shared drives (on the guest machine) is instant
This can't be a performance thing that can be tweaked this is just plain broken, there is something not right with this.

I use Virtual PC because my work's infrastructure is built around Virtual Server/Hyper V/Virtual PC and until this we've never had one single problem with it.
My System SpecsSystem Spec
12 Jan 2010   #8
ericrhu

windows 7
 
 
similar problem

I'm having a similar problem

I'm running windows 7 as the host machine and winows xp as a guest machine on vmware server 1.10.

The connection is bridged and when I transfer files between the host and guest, it gets very slow. At a rate of about 30 kb /s, it takes hours for a large file.

However, when I transfer files between my host and another physical computer on the network, it takes minutes. Also transfers from that outside computer to my guest have been that fast as well.

My temporary fix right now is transferring files from my host to an outside computer and then to my guest from that outside computer. This is not ideal and I'm hoping to figure out how to fix this. Any help would be appreciated.
My System SpecsSystem Spec
08 Apr 2010   #9
flagrant99

windows 7
 
 

I have seen exact same thing with windows 7 XP Mode. Transfers from Host to VM Share are 18 kbps. Transfers from inside of VM from host Share are 18 kbps. Transfers from another computer on the network are fine. This did not occur in older versions of Virtual PC on XP. Either there is bug in Windows 7 or Antivirus is freaking it out. Very annoying.
My System SpecsSystem Spec
08 Apr 2010   #10
flagrant99

windows 7
 
 

While XPMode - VM is running Click on Tools, Settings, Integration Features, Drives and check them all. Now my Host Drives shows up in windows explorer in the VM and File Transfer is fast.
My System SpecsSystem Spec
Reply

 Host access now incredibly slow




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
Why is my VPN connection so incredibly slow?
I have a VPN connection on my home Win7 Pro 64-bit machine to access files on the server at my office. I connect using Win7's built-in VPN protocol, using my office's static IP address. After the VPN connection is active, I can go to \\server\share and access our files, just as if I were sitting...
Network & Sharing
Windows goes into Incredibly Slow mode
My Windows 7 PC quite often slows down to a geriatric snail's pace. In this state the mouse pointer lags several seconds behind what my mouse is telling it to do (which makes positioning the mouse quite difficult), it takes ages to respond to CTRL/ALT/DEL, or to draw the Task Manager window on the...
Performance & Maintenance
Incredibly slow and unreliable internet
I am currently on an unlimited plan. Using this command in cmd: ping -n 1000 google.com the results returned were less than satisfactory with 1000 packets sent 964 received 3% packet loss is there any way to make this number a lot lower? or would i have to be looking to get a new ISP?
Network & Sharing
What's happening across the network? - Incredibly slow
I thought maybe it was my computer or ISP but a look at the entire network indicates a lot of major routers are down. What's going on? And it's not just North America. :confused: Have a look: Details for North America /// Internet Traffic Report
Network & Sharing
Incredibly SLOW download & High Ping!!
I just purchased a new Asus netbook a few days ago and I am very disappointed in the extremely slow download speeds and incredibly high ping. I have been looking all over the net and I have tried a bunch of things to fix the issue but to no prevail. I was hoping someone on this forum could help...
Network & Sharing
Just being incredibly slow...
Just recently I downloaded a game, Battle of the Immortals to be exact, and it was a .exe file. I go into my downloads folder and double click it to start the installer and I get the spinning blue circle that means it's loading right? Yeah well.. it just sits there FOREVER. I just double clicked it...
Performance & Maintenance


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 11:39.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App