MASSIVE decrease in performance after upgrading to 3.0

Discussion in 'Windows Guest OS Discussion' started by dschmidt, Dec 11, 2007.

  1. Stacey M

    Stacey M Parallels Team

    Messages:
    916
    Hello,

    you should use the Advanced mode for replying. There you can attach files using 'Manage Attachments'.

    Best regards,
    Stacey
     
  2. NeoDynamic

    NeoDynamic

    Messages:
    6
    Hi Stacey,
    Thanks for the update. I'll look at re-installing 5582 soon and decreasing the memory however I have to tell you, for the work I do that 512 MB is not enough memory and 1GB is the bare minimum. I've been using parrallels for close to 12 months now and have always used 1.5GB of memory without any problems.

    I do have a suggestion though. If you note my post on the 19th of Dec you'll see that I'm saying even after a rollback that there are problems (not as frequent though) even though I rolled back to 4560. Given I had not made any Windows OS changes to my VM I believe there may be something that the 5582 installer is doing differently. Are there any changes to the installation between 4560 & 5582?

    Thanks in advance...
     
  3. MattBaker

    MattBaker

    Messages:
    17
    Screenshots Stacey requested

    Stacey,

    Here are the screenshots you asked for.

    Thanks.
     

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  4. randall

    randall Bit Poster

    Messages:
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    Here are my screenshots.

    I have 2 GB of RAM total on this MacBook running 10.5.1. 2.16 GHz Intel Core 2 Duo.

    I had 1 GB dedicated to Windows XP when I took the screenshots. I tried what was posted here and reduced to 512 MB for XP, but the problem I'm having still occurs.

    It happens when I close a window inside Windows XP. The virtual machine locks up for about 5-10 seconds. It doesn't happen with every window I close, and I haven't found a discernible pattern yet. I get the pinwheel for that period of time, then everything begins responding again. OS X doesn't lock up...just Parallels Desktop 3.0 Build 5582! :)
     

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  5. Eru Ithildur

    Eru Ithildur

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    randall and Mattbaker,
    Here is a shot... In your preferences change the memory setting to manual and set the memory to 1 GB, see if that helps. You could also try tweaking with the 'enable memory preallocation'.

    Also, what is the CPU usage (check your Activity Monitor on OS X) when this temporary rogue state hits.
     
  6. randall

    randall Bit Poster

    Messages:
    20
    I tried Eru Ithildur's suggestions but am still having the problem.

    I tried moving the VM's memory as low as 384 and as high as 1024, in combination with the "Manual" and "Automatic" settings under the Parallels Preferences. None of the combinations I tried made the problem go away.

    The problem doesn't seem to be linked to CPU usage. I monitored it closely as the problem has continued happening, and I cannot see a correlation.
     
  7. Eru Ithildur

    Eru Ithildur

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    1,966
    What is the actual CPU usage numbers? They might be useful.
     
  8. randall

    randall Bit Poster

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    Let me know if this attachment is what you need. I took it while the problem was occurring.
     

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  9. Eru Ithildur

    Eru Ithildur

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    Interesting, Parallels is grabbing 3.24GB of VM, how much VM do you have available? How much free space do you have available?
     
  10. randall

    randall Bit Poster

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    20
    Hmm...I didn't notice that. Here's more info:

    I used an expanding virtual Parallels disk for my XP installation.

    Fujitsu 148.73 GB hard drive total space available in MacBook
    Free space 38.54 GB
    Used space 111.19 GB

    In Windows, capacity 73.2 GB
    Used 12.9 GB
    Free 60.3 GB
     
  11. randall

    randall Bit Poster

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    Here are a couple more screenshots from Activity Monitor.
     

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  12. Eru Ithildur

    Eru Ithildur

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    You have 40GB of VM... That's... A lot.
    How much free space do you have when you first start up your computer and how much VM is used?

    It sounds to me as if the VM is exceeding the available space, causing a hang, it might be due to a leak in Parallels, Safari, other applications, or some combination. Plausible? I think so.
     
  13. randall

    randall Bit Poster

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    I shut down the virtual machine, shut down Leopard, booted up Leopard, and took a fresh screenshot (8.jpg). It still shows 40 GB of VM size.

    I checked with a colleague and he has noticed that his VM size is like this, also (attachment titled "VM.jpg").

    Maybe that's just a Leopard thing?
     

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  14. randall

    randall Bit Poster

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  15. pkasin

    pkasin Bit Poster

    Messages:
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    Networking issues or hard drive issue?

    I am also having slowdowns on Windows XP. I have MacBook Pro 2.33ghz/4gb ram with PDM 5582. I have been using Parallels for a little over a year, and have been at this version since the date it was released.

    All of a sudden, my system got very slow; I started looking for causes, and did my normal maintenance including making sure I have free space on my Bootcamp paritition and doing a Norton Systemworks Speed Disk as I have been doing. I checked my CPU Usage using Task Manager, and it showed a steady 100%!!! I tried closing processes, and still 100%. Finally I started disabling Parallels services one by one, and although when I disconnected from the network it gave me a momentary lessening of CPU usage, it jumped back up after a few seconds.

    Then I started to look to see if my well-intentioned maintenance may be causing ill effects. I am now doing a Windows XP Disk Defrag, and my CPU Usage during the Defrag is MUCH less - Perhaps it is a process continually reading and writing to the disk which is causing the problem - or perhaps Norton SystemWorks is doing something to the partition.

    Just my temporary 2 cents worth... I'll come back with more info when the defrag is done ... and when I know if the CPU usage stays down... (currently from 6 to 30 % - a huge difference!).

    My VM has 672 MB of Memory with a Adjusted memory limit set to "Automatically" and "Enable virtual memory preallocation".

    Added: My WINDOWS XP Disk Defrag (as against other defragmenter) finished, and low and behold, my CPU Usage is now at a range of around 3-6% with an occasional 15 or so! Perhaps 3rd party defragmentation actually is dangerous to use with Parallels 5582??
     
  16. randall

    randall Bit Poster

    Messages:
    20
    Sorry for all the posts.

    I have continued testing, and I have been unable to reproduce this problem when I'm not connected to an external monitor. MattBaker, scotto, and dschmidt are in the same boat, too.
     
  17. Eru Ithildur

    Eru Ithildur

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    1,966
    What display mode are you using? Does it make any difference which mode you use?
     
  18. randall

    randall Bit Poster

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    1280 x 1024
    32-bit color
    Dell LCD - I think the model is AS501

    The funny thing is, it hasn't happened at all during the past two days.
     
  19. Eru Ithildur

    Eru Ithildur

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    No,no the parallels display mode, i.e. coherence or single window os
     
  20. randall

    randall Bit Poster

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    ahh, sorry

    full screen
     

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