Re: Request for Testing: TCP RACK

From: <tuexen_at_freebsd.org>
Date: Sat, 16 Mar 2024 15:05:49 UTC 
> On 16. Mar 2024, at 15:00, Nuno Teixeira <eduardo@freebsd.org> wrote:
> 
>> If you load tcp_rack via kldload, tcphtps get loaded automatically.
>> If you load if via /boot/loader.conf, you need to have
>> tcphpts_load="YES"
>> in addition to
>> tcp_rack_load="YES"
> 
> As of my tests, loader.conf: tcp_rack_load="YES" loads tcphtps.ko auto:
> 
> 3    1 0xffffffff81f53000    545e0 tcp_rack.ko
> 4    2 0xffffffff81fa8000    14588 tcphpts.ko
Interesting. Works on my arm64 machine, too. I think when I tested things
for writing the article, I figured out that just doing
tcp_rack_load="YES"
in /boot/loader.conf was not working on a kernel configured without
TCPHPTS.
> 
> On aarch64 (rpi4) I didn't get any performance issues in
> 
> main-n268730-96ad640178ea (Mar 8)
> and
> main-n268827-75464941dc17 (Mar 16)
> 
> So it seems not related to rack commit e18b97bd63a8: Update to bring
> the rack stack with all its fixes in.
> 
> Will update amd64 laptop to main-n268827-75464941dc17 (Mar 16) and test it.
Please do so...

Best regards
Michael
> -- 
> Nuno Teixeira
> FreeBSD Committer (ports)