bismark, please check your motherboard bios version and the kernel version.
there are a few known issues with apic irq polling using one logical
hyperthreaded CPU versus all for some AMD boards with NVIDIA chipsets.
Please post your MB chip-set and kernel information.



On Wed, Feb 20, 2008 at 3:57 PM, Ron Gula <[EMAIL PROTECTED]> wrote:

> [EMAIL PROTECTED] wrote:
> >>         [EMAIL PROTECTED] wrote:
> >>          Have you tried looking at CPU, Ram usage, Load etc etc... Is
> your
> >> CPU flat out?            RAM usage is nominal, CPU usage is about
> >> 50% on both processors.  Right now running a scan I've got some
> >> responsiveness but it will go away at some point.      Is the IO
> >> usage spiking at some point to cause an increase in the load ?
> >
> > IO load seems to barely go up while a scan is running.  This is from
> > observation of the drive lights, haven't run an iostat though.
> >
> > The be_nice = yes change in my nessusd.conf file has made a HUGE change
> in
> > responsiveness.  Still not anywhere near the FreeBSD setup but at least
> I
> > can run 30/20 hosts/checks and still have my system usable.
>
> I'm glad the be_nice setting helped out.
>
> I was also curious if the FreeBSD system took longer to scan than
> your Linux system. It would be interesting to note if the FreeBSD
> system was more responsive but also took longer to complete a scan.
>
> Ron Gula
> Tenable Network Security
>
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> http://mail.nessus.org/mailman/listinfo/nessus
>



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