From: jamal <hadi-fAAogVwAN2Kw5LPnMra/2Q@public.gmane.org>
To: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: Patrick McHardy <kaber-dcUjhNyLwpNeoWH0uzbU5w@public.gmane.org>,
David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org,
linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 20/31]: pkt_sched: Perform bulk of qdisc destruction in RCU.
Date: Sun, 20 Jul 2008 10:58:14 -0400 [thread overview]
Message-ID: <1216565894.4847.61.camel@localhost> (raw)
In-Reply-To: <adaljzz6ruq.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
On Fri, 2008-18-07 at 10:10 -0700, Roland Dreier wrote:
> This is definitely true, but it is good to keep in mind that in the near
> future we will start to see things look a little like multiple "virtual
> wires." This is because of new ethernet standards like per-priority
> pause, which makes it possible that one hardware ring on a NIC can
> transmit while another ring is paused (possibly because of congestion
> far off in the network).
Thats essentially what i am arguing for.
[I think some, not all, of the wireless qos schemes also have similar
scheduling].
My understanding of these wired "datacentre/virtualization" schemes you
describe is they are strict prio based. When the low prio "virtual wire"
is contending for the "physical wire" with a higher prio "virtual wire",
the high prio always wins.
We just need to make sure this behavior is also maintained whatever
buffering scheme is used within or above the driver(qdisc level).
cheers,
jamal
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next prev parent reply other threads:[~2008-07-20 14:58 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-17 12:17 [PATCH 20/31]: pkt_sched: Perform bulk of qdisc destruction in RCU David Miller
[not found] ` <20080717.051726.226040470.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-07-17 13:03 ` Patrick McHardy
[not found] ` <487F4327.1000107-dcUjhNyLwpNeoWH0uzbU5w@public.gmane.org>
2008-07-17 13:12 ` David Miller
2008-07-17 13:48 ` Patrick McHardy
[not found] ` <487F4DA6.6010009-dcUjhNyLwpNeoWH0uzbU5w@public.gmane.org>
2008-07-17 22:36 ` David Miller
[not found] ` <20080717.153609.142867331.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-07-17 23:58 ` Patrick McHardy
2008-07-17 13:35 ` jamal
2008-07-17 14:02 ` Patrick McHardy
[not found] ` <487F50EC.80008-dcUjhNyLwpNeoWH0uzbU5w@public.gmane.org>
2008-07-17 22:24 ` David Miller
[not found] ` <20080717.152447.89672084.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-07-17 23:48 ` Patrick McHardy
2008-07-18 13:10 ` jamal
2008-07-18 13:27 ` jamal
2008-07-18 21:05 ` David Miller
2008-07-20 15:16 ` jamal
2008-07-20 17:25 ` David Miller
[not found] ` <20080720.102534.246150854.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-07-20 17:34 ` Tomas Winkler
[not found] ` <1ba2fa240807201034u1fbe3343tdcc858f7772d2b39-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-20 17:35 ` David Miller
2008-07-20 22:32 ` jamal
2008-07-20 23:59 ` David Miller
2008-07-21 2:20 ` jamal
2008-07-21 11:20 ` jamal
2008-07-21 16:45 ` David Miller
2008-07-21 11:58 ` Herbert Xu
[not found] ` <E1KKu2D-0002kd-00-XQvu0L+U/CjiRBuR/1fSEKKkPtS2pBon@public.gmane.org>
2008-07-21 13:08 ` jamal
2008-07-21 13:19 ` Herbert Xu
2008-07-21 13:56 ` jamal
2008-07-21 13:58 ` Herbert Xu
[not found] ` <20080721135846.GA11543-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-07-21 15:09 ` David Miller
[not found] ` <20080721.080901.214889979.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-07-21 15:22 ` Herbert Xu
2008-07-21 15:26 ` David Miller
[not found] ` <20080721.082627.128593651.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-07-21 16:16 ` Herbert Xu
[not found] ` <20080721161616.GA12938-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-07-21 16:25 ` David Miller
2008-07-21 16:43 ` Herbert Xu
2008-07-21 16:51 ` David Miller
[not found] ` <20080721.095124.89249903.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-07-21 17:02 ` Herbert Xu
[not found] ` <20080721170233.GA13417-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-07-21 17:08 ` David Miller
[not found] ` <20080721.100821.38432201.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-07-21 17:11 ` Herbert Xu
2008-08-22 6:56 ` Herbert Xu
2008-08-22 7:16 ` David Miller
[not found] ` <20080822.001620.141235108.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-08-22 7:41 ` Herbert Xu
[not found] ` <20080822074115.GB25615-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-08-22 10:42 ` David Miller
[not found] ` <20080822.034217.135152551.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-08-22 10:47 ` Herbert Xu
2008-08-22 13:52 ` jamal
[not found] ` <20080822065655.GA18471-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-08-22 13:43 ` jamal
2008-07-21 17:35 ` David Miller
2008-07-18 17:10 ` Roland Dreier
[not found] ` <adaljzz6ruq.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2008-07-20 14:58 ` jamal [this message]
2008-07-20 14:32 ` Herbert Xu
2008-07-20 17:20 ` David Miller
2008-07-20 14:20 ` Herbert Xu
[not found] ` <E1KKZmE-0000ty-00-XQvu0L+U/CjiRBuR/1fSEKKkPtS2pBon@public.gmane.org>
2008-07-20 15:35 ` jamal
2008-07-21 0:11 ` Herbert Xu
[not found] ` <20080721001119.GA6515-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-07-21 2:33 ` jamal
2008-07-21 3:17 ` Herbert Xu
2008-07-21 11:14 ` jamal
2008-07-21 11:36 ` Herbert Xu
[not found] ` <20080721113600.GA10322-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2008-07-21 11:39 ` jamal
2008-07-19 3:59 ` David Miller
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