netdev - Re: Fwd: UDP/IPv6 performance issue

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

Message-ID: <CAGA2gK5CTj0ELTLnQEEZptWuRj+EGRgU4Nw5nH1CwqQigghSfg@mail.gmail.com>
Date:	Tue, 10 Dec 2013 17:11:36 -0500
From:	ajay seshadri <seshajay@...il.com>
To:	netdev <netdev@...r.kernel.org>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>
Subject: Re: Fwd: UDP/IPv6 performance issue

On Tue, Dec 10, 2013 at 2:46 PM, ajay seshadri <seshajay@...il.com> wrote:
> On Tue, Dec 10, 2013 at 12:12 PM, Hannes Frederic Sowa
> <hannes@...essinduktion.org> wrote:
>> A cached entry will be inserted nontheless. If you don't hit the max_size
>> route entries limit I guess there could be a bug which triggers needless gc
>> invocation.
>
> I am leaning towards needless invocation of gc. At this point in time,
> I am not sure why.


Additionally,  fib6_force_start_gc() doesn't show up in TCP/IPv6 tests
when I disable TSO and am CPU bound. With TSO turned off TCP/IPv4 and
TCP/IPv6 throughputs are identical.

Thanks,
Ajay
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html