From: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
To: Tom Herbert <tom@herbertland.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
Linux Kernel Network Developers <netdev@vger.kernel.org>,
Stephen Hemminger <stephen@networkplumber.org>,
netdev-owner@vger.kernel.org
Subject: Re: [PATCH net-next v2] net: Add sysctl to toggle early demux for tcp and udp
Date: Sat, 18 Mar 2017 20:07:22 -0600 [thread overview]
Message-ID: <c965b4cc8b5f81cc17836f91423935f5@codeaurora.org> (raw)
In-Reply-To: <CALx6S343iWzOKrKwHquG8qmyLyKOgQr_KroHyypE_9MFt2+1BQ@mail.gmail.com>
> Less than 1% performance improvement in a benchmark doesn't justify
> the complexity of the patch. Eric's hypothesis was that an unconnected
> UDP socket may show issues because of cache misses in look-ups due to
> so many different sources. This should be fairly easy to benchmark by
> randomly setting source address in your test (IP any and routing my
> need to be set appropriately).
>
With different source addresses, a larger increase is seen here
(633->654Mbps).
next prev parent reply other threads:[~2017-03-19 2:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-10 3:31 [PATCH net-next v2] net: Add sysctl to toggle early demux for tcp and udp Subash Abhinov Kasiviswanathan
2017-03-10 3:42 ` Tom Herbert
2017-03-10 5:26 ` Subash Abhinov Kasiviswanathan
2017-03-10 16:33 ` Tom Herbert
2017-03-11 0:22 ` Eric Dumazet
2017-03-11 0:49 ` Tom Herbert
2017-03-18 17:32 ` Subash Abhinov Kasiviswanathan
2017-03-18 17:44 ` Tom Herbert
2017-03-19 2:07 ` Subash Abhinov Kasiviswanathan [this message]
2017-03-19 19:18 ` Eric Dumazet
2017-03-21 22:49 ` Tom Herbert
2017-03-10 4:25 ` Eric Dumazet
2017-03-10 7:34 ` Subash Abhinov Kasiviswanathan
2017-03-10 12:42 ` kbuild test robot
2017-03-10 12:44 ` kbuild test robot
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