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Date: Thu, 10 Apr 2014 11:32:25 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: Edward Cree <ecree@...arflare.com> Cc: netdev@...r.kernel.org, Shawn Bohrer <shawn.bohrer@...il.com>, Shawn Bohrer <sbohrer@...advisors.com>, Jonathan Cooper <jcooper@...arflare.com> Subject: Re: [RFC PATCH] udp: allow busy_poll on some unconnected sockets On Thu, 2014-04-10 at 19:04 +0100, Edward Cree wrote: > Tested by setting IFF_SINGLE_NAPI in sfc; a UDP ping-pong test showed a > performance benefit from sysctl net.core.busy_{read,poll}=50 in both the > connected and unconnected case, where previously it only saw the benefit > when the socket had been connected. Right, but how often do we have single NAPI devices on hosts wanting very low latencies ? -- 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
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