Hi,

On Wed, Oct 30, 2019 at 3:56 PM Tom Eastep <teas...@shorewall.net> wrote:
>
> >> I think you example of stress is exactly where Hyper Threading shines and
> >> works well. Shorewall reload is something else because it also involves
> >> I/O and probably memory interaction. Whenever I saw slowdowns on servers
> >> like what you experience here, most of the time it was not directly CPU
> >> related.

If and when I run any of these:

# ionice -c 3 shorewall check
# chrt -i 0 shorewall check

then I still experience noticeable ping latency issues (eg. ping to
Shorewall FW from LAN host).

I guess I've reached a hardware limit.

> You could consider moving to Shorewall Lite on your firewall; that would
> move the Perl part of reload onto another system (even a Windows system
> or a Mac).

Thanks for suggesting that. I'll take a look at it asap.

Vieri


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