Re: top delay value

In the last episode (Jan 30), waldeck@xxxxxx said:
An unprivileged user could waste all CPU time by setting a low delay
value in top (interactive or via -s).

Are you sure? In 6.2 at least, "s0" in interactive mode results in a
1-second delay, and "top -s0" prints

top: warning: seconds delay should be positive -- using default
....

What version of FreeBSD are you seeing this on?

Is there any possibility to deactivate this functionality without
recompilation?

There are other top implementations that use a "secure mode"
configuration which avoids the setting of the delay value for
unprivileged users.

Users can hog CPU by running "while true ; do done" or any number of
other methods. That's what CPU limits are for :)

--
Dan Nelson
dnelson@xxxxxxxxxxxxxxx
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