Parallels 9 - OSX 10.6 - Win XP VM - HORRIBLE performance

[dcortesi]

The win xp VM hangs for several seconds with 100% CPU (per the Windows Task Manager) and meanwhile saturates one CPU (per the Mac Performance Monitor). Then it will get a burst of work done at normal-seeming speed, then hang again with 100% CPU.

It was not what you'd call speedy under Parallels 8 but this is a new low and very disappointing.

Let me add: this is immediately after a fresh boot. It can hang when opening a folder. Have you ever seen a folder display with (not responding) in the title bar?

Any suggestions on improving things, or any debugging info I can get, please add.

Edit: my Win 7 VM seems more normal, altho Parallels Tools Update took over 12 minutes to complete...

 

[dcortesi]

OK after Parallels 9 has had a day to think about it and settle in, Win XP seems once again to be running normally.

I could delete this thread as there is no longer a problem, however I think I will leave it in to document for others that (a) the install/upgrade process can be rather fraught, and (b) things seem to get better, later.

 

[Tony Carreon]

this happens to me when windows update is running. the VM is almost unusable, then it'll snap back to life for a bit, repeat, etc. made worse after a reboot. if i just suspend the VM, it appears to lessen the impact the next time i need to use it.