netdev - Re: [PATCH v3 1/1] gro: decrease size of CB

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date: Wed, 23 Aug 2023 20:31:21 -0700
From: David Ahern <dsahern@...nel.org>
To: Gal Pressman <gal@...dia.com>, Richard Gobert <richardbgobert@...il.com>,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, aleksander.lobakin@...el.com, lixiaoyan@...gle.com,
 lucien.xin@...il.com, alexanderduyck@...com, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/1] gro: decrease size of CB

On 8/23/23 7:43 AM, Gal Pressman wrote:
>> With veth and namespaces I expect up to 25-30G performance levels,
>> depending on the test. When something fundamental breaks like this patch
>> a drop to < 1G would be a red flag, so there is value to the test.
> Circling back to this, I believe such test already exists:
> tools/testing/selftests/net/udpgro_fwd.sh
> 
> And it indeed fails before Richard's fix.
> 
> I guess all that's left is to actually run these tests 😄?

hmmm... if that is the case, the Makefile shows:

TEST_PROGS += udpgro_fwd.sh

so it should be run. I wonder why one of the many bots did not flag it.