How big is the hard disk performance loss in a WUBI install of Ubuntu compared to a real dual-boot?

Simen Burud February 26, 2012
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I am currently dual-booting Windows 7 and Ubuntu using WUBI. I have understood that disk performance under Ubuntu is ‘slightly slower’ when using WUBI compared to a ‘real’ dual-boot, but exactly how big is the performance loss?

Is it worth doing a real install and spend some time to figure out how to set up a dual-boot that allows me to have a separate data partition?

My hard disk has a read speed of ~83 MB/s according to my Ubuntu LiveCD. The rest of my system is relatively fast.



  1. Anonymous
    February 26, 2012 at 6:47 pm

    Performance related to hard-disk access is also slightly slower, more so if the disk image file is fragmented, on a Wubi install compared to a normal one.

    The Performance Impact Of Ubuntu's Wubi Windows Installer

    • Anonymous
      February 27, 2012 at 3:02 pm

      Thanks for the link about performance, I'll consider it when I decide wether to do a real install or not.
      Also I'll try to defrag my current WUBI install to see if it helps.