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From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
To: Dave Taht <dave@taht.net>
Cc: Stephen Hemminger <stephen@networkplumber.org>,
	cake@lists.bufferbloat.net
Subject: Re: [Cake] [PATCH 1/3] pkt_sched.h: add support for sch_cake API
Date: Fri, 24 Nov 2017 11:33:18 -0200	[thread overview]
Message-ID: <20171124133317.GB32400@localhost.localdomain> (raw)
In-Reply-To: <87shd7ruwh.fsf@nemesis.taht.net>

On Tue, Nov 21, 2017 at 04:58:54PM -0800, Dave Taht wrote:
> Stephen Hemminger <stephen@networkplumber.org> writes:
...
> > Also, when I see multiple arrays of same size. It seems the API should
> > be:
> > 	struct tc_cake_tin_stats {
> > 		__u32 threshold_rate;
> > 		__u32 target_us;
> > 		struct tc_cake_traffic_stats sent;
> > ...
> >
> > What if you want to change number of TINS, the ABI shouldn't have to change.
> 
> It is hard to imagine ever wanting more than 8 tins. Using up 3, sanely,
> has proven hard.

Which means each stats dump will almost always dump 5 empty TINS,
while if it were dynamic, it could dump only the 1, 2 or 3 in use and
probably help with the stats dump performance. Smaller slab, less
bytes to copy, ...

  Marcelo

  parent reply	other threads:[~2017-11-24 13:33 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-22  0:09 [Cake] [PATCH 0/3] Add Common Applications Kept Enhanced (sch_cake) qdisc Dave Taht
2017-11-22  0:09 ` [Cake] [PATCH 1/3] pkt_sched.h: add support for sch_cake API Dave Taht
2017-11-22  0:55   ` Stephen Hemminger
2017-11-22  0:58     ` Dave Taht
2017-11-22 21:38       ` Stephen Hemminger
2017-11-22 22:35         ` Dave Taht
2017-11-24 13:33       ` Marcelo Ricardo Leitner [this message]
2017-11-24 20:53         ` Dave Taht
     [not found]     ` <CAJq5cE2j9o1vHhxEecHkKMUv65d-BxDvXNJXPWh=WHmXVqNUQA@mail.gmail.com>
     [not found]       ` <CAJq5cE36nijxKM6dpRPK2d8axZwf=35a8D=2oArPjusRKALLpA@mail.gmail.com>
2017-11-22  6:59         ` Jonathan Morton
2017-11-22  0:09 ` [Cake] [PATCH 2/3] Add Common Applications Kept Enhanced (sch_cake) qdisc Dave Taht
2017-11-22  0:55   ` Dave Taht
2017-11-22  2:33     ` Ryan Mounce
2017-11-22  7:46     ` Toke Høiland-Jørgensen
2017-11-22  0:09 ` [Cake] [PATCH 3/3] Add support for building the new cake qdisc Dave Taht
2017-11-22 11:02 ` [Cake] [PATCH 0/3] Add Common Applications Kept Enhanced (sch_cake) qdisc Sebastian Moeller
2017-11-22 18:03   ` Dave Taht
2017-11-23  7:54     ` Sebastian Moeller
2017-11-23 21:43     ` Sebastian Moeller
2017-11-23 22:02       ` Sebastian Moeller
2017-11-23 22:20         ` Sebastian Moeller
2017-11-23 22:26           ` Dave Taht

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