From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Don Skidmore <donald.c.skidmore@intel.com>,
e1000-devel@lists.sourceforge.net,
Willem de Bruijn <willemb@google.com>,
Ben Hutchings <bhutchings@solarflare.com>,
Andi Kleen <andi@firstfloor.org>, HPA <hpa@zytor.com>,
Eilon Greenstien <eilong@broadcom.com>,
Or Gerlitz <or.gerlitz@gmail.com>,
Amir Vadai <amirv@mellanox.com>,
Alex Rosenbaum <alexr@mellanox.com>,
Avner Ben Hanoch <avnerb@mellanox.com>,
Or Kehati <ork@mellanox.com>,
sockperf-dev@googlegroups.com,
Eliezer Tamir <eliezer@tamir.org.il>
Subject: Re: [PATCH v2 net-next] net: poll/select low latency socket support
Date: Tue, 18 Jun 2013 17:45:34 +0300 [thread overview]
Message-ID: <51C0728E.6060900@linux.intel.com> (raw)
In-Reply-To: <1371566148.3252.255.camel@edumazet-glaptop>
On 18/06/2013 17:35, Eric Dumazet wrote:
> On Tue, 2013-06-18 at 16:25 +0300, Eliezer Tamir wrote:
>
>> One other thing,
>> sock_poll() will only ll_poll if the flag was set _and_ the socket has a
>> none-zero value in sk->sk_ll_usec so you still only poll on sockets
>> that were enabled for LLS, not on every socket.
>
> But sockets are default enabled for LLS.
>
> sock_init_data()
> {
> ...
> sk->sk_ll_usec = sysctl_net_ll_poll;
> ...
> }
Yes, if you want to globally enable.
But now that we have the socket option, you can leave the global
setting at 0 and only enable specific sockets via the socket option.
(I have tested this with a modified sockperf and it works.)
next prev parent reply other threads:[~2013-06-18 14:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-18 8:57 [PATCH v2 net-next 0/1] net: lls select poll support Eliezer Tamir
2013-06-18 8:58 ` [PATCH v2 net-next] net: poll/select low latency socket support Eliezer Tamir
2013-06-18 9:08 ` Eric Dumazet
2013-06-18 9:12 ` Eliezer Tamir
2013-06-18 10:25 ` Eric Dumazet
2013-06-18 10:37 ` Eliezer Tamir
2013-06-18 13:25 ` Eliezer Tamir
2013-06-18 14:35 ` Eric Dumazet
2013-06-18 14:45 ` Eliezer Tamir [this message]
2013-06-18 14:50 ` Eliezer Tamir
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