[Bug 254763] grep very slow with 13.0-RC4

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254763

--- Comment #6 from Mark Millard <marklmi26-fbsd at yahoo.com> ---
(In reply to parv from comment #4)

Intersting.

Another comparison/contrast would be to try a fairly large
file but one that would fit in RAM buffers/caching, say 4
GB based on your description, again both orders, with a PC
reboot between.

Going in a different direction . . .

My vague memories lead to looking up:

VBoxManage storagectl "VM name" --name <controllername> --hostiocache off

Have you tried both hostiocache off and on? If I remember
right on was a default.

There might be more virtualbox settings that might contribute to
how the I/O is handled. I do not remember much about such things.
But such settings might be appropriate to explore for if they make
any notable differences.

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