virtualbox 4.2.4 tooooo slow

[진석오]

>
> Thanks a lot for your cooperation. I've already talked to the vbox
> developers
> and they say that your symptoms are known to them but they could not
> reproduce nor narrow down the problem yet. So what they need to be able
> to narrow it down is a ps and top listing on thread level (!) and if
> possible
> a stacktrace from the most time consuming vbox threads.
>
> --
> Bernhard Froehlich
> http://www.bluelife.at/
>

attached files are my top -H 100, ps -H list.
and I am not sure how to trace stacks, using DTRACE?, anyaway, kldload
dtrace doesen work on my pc. any other ways? plz, let me know how to trace
the stacks.

[mohicann at theBSD ~/top]$ sudo kldload dtrace
kldload: can't load dtrace: Exec format error
[mohicann at theBSD ~/top]$ sudo kldload dtraceall
kldload: can't load dtraceall: Exec format error
[mohicann at theBSD ~/top]$