From: dwhodgins@nomail.afraid.org   
      
   On Wed, 18 Jul 2012 10:49:07 -0400, Adam  wrote:   
      
   > Thanks, BT!  I agree, things running ~12% more slowly wouldn't be   
   > noticeable most of the time.  Others here have said that in VirtualBox,   
   > dynamic virtual disks are slower than static ones, but haven't given any   
   > numbers.   
      
   With a dynamic drive the slowdown is very noticeable on my system.  Probably   
   runs around 50-60% of bare hardware speed.  With a fixed disk, I'd estimate   
   around 80-90% speed of bare hardware.   
      
   This is on a single core i586 system with 2GB of ram, 768MB allocated to the   
   guest, and a hard drive that hdparm -tT shows 75.27 MB/sec.   
      
   With a multicore system, or a faster hard drive (ssd would be great), I'd   
   expect   
   the difference to be barely noticeable.   
      
   Regards, Dave Hodgins   
      
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