how badly does encrypting the root file system crush my performance?

[Robert P. J. Day]

  the context here might make this question inappropriate, but i
installed f9 alpha inside virtualbox in two different ways, with only
one difference -- whether the all-encompassing root file system was
encrypted or not.

  within virtualbox, the encrypted VM is *waaaaay* slower than the
unencrypted one.  should i expect the same performance difference with
regular hard disk installs?  just curious.  i expected a difference
but this is *hugely* noticeable and almost unusable.

rday
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Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry:
    Have classroom, will lecture.

http://crashcourse.ca                          Waterloo, Ontario, CANADA
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