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Windows Forum / Virtual PC / May 20081 Ghz not enough?
Its very slow running 2 xp, the disk seldom stops and blocks other programs, how many Ghz is needed? I'll try this after work : Troubleshooting Virtual PC > Its very slow running 2 xp, the disk seldom stops and blocks other > programs, how many Ghz is needed? > Its very slow running 2 xp, the disk seldom stops and blocks other programs, > how many Ghz is needed? You probably need more RAM. > Its very slow running 2 xp, the disk seldom stops and blocks other > programs, how many Ghz is needed? More importantly: 1) how much RAM does the host have? 2) how much RAM have you allocated to the VMs?  SignatureMark Rae ASP.NET MVP http://www.markrae.net >> Its very slow running 2 xp, the disk seldom stops and blocks other >> programs, how many Ghz is needed? [quoted text clipped - 4 lines] > > 2) how much RAM have you allocated to the VMs? 256 128 I'll try to change it You need a lot more ram. A lot more. >>> Its very slow running 2 xp, the disk seldom stops and blocks other >>> programs, how many Ghz is needed? [quoted text clipped - 10 lines] > > I'll try to change it How much? Nothing of it here :( > You need a lot more ram. A lot more. > [quoted text clipped - 12 lines] >> >> I'll try to change it Forgot http://www.microsoft.com/windows/downloads/virtualpc/sysreq.mspx but see now 128 should be good for xp > How much? > [quoted text clipped - 16 lines] >>> >>> I'll try to change it So you're running the bare minimums and you're wondering why it's running slow? 128MB for the host, 40MB of that is used by the VPC application so that leaves you with probaly 40-60MB of actual free RAM, you're going to be be paging to disk alot. Especially, since you're running other programs. Also, a 1GHz CPU split between tow instanes of XP, host and guest, will run slowly. Do you have the guest XP on the same hard drive as the the host XP? If so, there's another big performance hit, disk contention. >Forgot >http://www.microsoft.com/windows/downloads/virtualpc/sysreq.mspx [quoted text clipped - 21 lines] >>>> >>>> I'll try to change it SignatureCheers, Steve Jain, Virtual Machine MVP http://vpc.essjae.com/ I do not work for Microsoft. My 256 must be divided between two, if I allocate 256 for VPC there is nada for my host, thats why 128 is default? I'll try 2 disks later and may plug in another 128 at least. My host runs lower than 2 Gb now so I'll try to extend it with Part. Magic. So it will run faster on 2 disks but not on 2 partitions? > So you're running the bare minimums and you're wondering why it's > running slow? [quoted text clipped - 34 lines] >>>>> >>>>> I'll try to change it > My 256 must be divided between two, if I allocate 256 for VPC there is > nada for my host, thats why 128 is default? RAM is not allocated to Virtual PC - it's allocated to each virtual machine according to the virtual machine's individual setting... > I'll try 2 disks later and may plug in another 128 at least. IMO, that will still be a ridiculously low amount of RAM for what you're trying to do... > So it will run faster on 2 disks but not on 2 partitions? Not really, unless the two disks are connected to different disk controllers... SignatureMark Rae ASP.NET MVP http://www.markrae.net >My 256 must be divided between two, if I allocate 256 for VPC there is nada >for my host, thats why 128 is default? Yes, you need to have enough RAM for the host, 128MB is required by an XP host, 512MB for a Vista host. >I'll try 2 disks later and may plug in another 128 at least. You want more RAM on the host, unless you're going to be doing nothing other than running VPC. Starving the host OS for RAM will cause a big performance hit. >My host runs lower than 2 Gb now so I'll try to extend it with Part. Magic. >So it will run faster on 2 disks but not on 2 partitions? Splitting the drive into 2 partitions won't help, more likely decrease performance, since you'll probably be bouncing the head even farther as you travel back and forth between the host OS partition and the partition where the guest OS is located. SignatureCheers, Steve Jain, Virtual Machine MVP http://vpc.essjae.com/ I do not work for Microsoft. >> More importantly: >> [quoted text clipped - 5 lines] > > 128 I'm surprised the host even boots up, never mind the guests... Microsoft's bare minimum RAM values are all well and good in theory, but in practice they are woefully inadequate. XP needs at least 1Gb RAM before you can use it for anything useful, and that includes host and guest... SignatureMark Rae ASP.NET MVP http://www.markrae.net Well, that I don't agree with. 512mb has always been fine for me for XP and 384mb has been pretty good. Even 256mb is OK for most apps. For running another instance of XP in a vm I would recommend 1GB total but 784mb will do pretty well with 256mb allocated to the guest. But whatever, I just don't think that 1GB is necessary for good performance of XP. >>> More importantly: >>> [quoted text clipped - 13 lines] > XP needs at least 1Gb RAM before you can use it for anything useful, and > that includes host and guest... >>>> 1) how much RAM does the host have? >>>> [quoted text clipped - 18 lines] > whatever, I just don't think that 1GB is necessary for good performance of > XP. Fair enough. SignatureMark Rae ASP.NET MVP http://www.markrae.net |
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