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From: "Dumitrescu, Cristian" <cristian.dumitrescu@intel.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2 4/7] rte_sched: don't clear statistics when	read
Date: Mon, 23 Feb 2015 12:06:38 +0000
Message-ID: <3EB4FA525960D640B5BDFFD6A3D891263231BBC2@IRSMSX108.ger.corp.intel.com> (raw)
In-Reply-To: <20150220175327.742d8676@urahara>



> -----Original Message-----
> From: Stephen Hemminger [mailto:stephen@networkplumber.org]
> Sent: Saturday, February 21, 2015 1:53 AM
> To: Dumitrescu, Cristian
> Cc: Thomas Monjalon; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2 4/7] rte_sched: don't clear statistics when
> read
> 
> On Fri, 20 Feb 2015 21:28:55 +0000
> "Dumitrescu, Cristian" <cristian.dumitrescu@intel.com> wrote:
> 
> > Agree.
> > Stephen, how about a run-time solution (I agree it would be much better,
> why did I not consider this in the first place?) of adding a new bool parameter
> in struct rte_sched_port_params: clear_stats_on_reset?
> > Both stats read function get the port handle (struct rte_sched_port *) as
> parameter, so there should be no ripple effect to propagate this flag.
> 
> Why not read_and_clear function if absolutely necessary.

I am not sure I understand what you mean. Are you suggesting different set of stats read functions, one that is read and clear, while the other one is read without clear?

Personally, I think we should avoid proliferating the number of stats functions, I would keep a single set of stats read functions, which can clear the stats or not, depending on behaviour configured per rte_sched object at creation time. Basically, based on the value of configuration parameter struct rte_sched_params::clear_stats_on_reset, the stats read functions do clear the counters or not. In my opinion, this allows a clean init-time selection of the required behaviour, and it also provides backward compatibility. Any issues with this approach?

  reply	other threads:[~2015-02-23 12:06 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-05  6:13 Stephen Hemminger
2015-02-05  6:13 ` [dpdk-dev] [PATCH v2 5/7] rte_sched: don't put tabs in log messages Stephen Hemminger
2015-02-20 18:33   ` Dumitrescu, Cristian
2015-02-05  6:14 ` [dpdk-dev] [PATCH v2 6/7] rte_sched: eliminate floating point in calculating byte clock Stephen Hemminger
2015-02-16 22:44   ` Dumitrescu, Cristian
2015-02-17 16:05     ` Stephen Hemminger
2015-02-05  6:14 ` [dpdk-dev] [PATCH v2 7/7] rte_sched: rearrange data structures Stephen Hemminger
2015-02-20 18:43   ` Dumitrescu, Cristian
2015-02-05 12:43 ` [dpdk-dev] [PATCH v2 4/7] rte_sched: don't clear statistics when read Neil Horman
2015-02-23 23:51   ` Thomas Monjalon
     [not found]   ` <fa17ab0c3bc041b88e18d3d76a255f13@HQ1WP-EXMB11.corp.brocade.com>
2015-02-24 19:18     ` Stephen Hemminger
2015-02-24 20:06       ` Thomas Monjalon
2015-02-25 17:29         ` Dumitrescu, Cristian
2015-03-10 13:55         ` Thomas Monjalon
2015-02-09 22:48 ` Dumitrescu, Cristian
2015-02-09 22:55   ` Stephen Hemminger
2015-02-20 18:32     ` Dumitrescu, Cristian
2015-02-20 19:52       ` Stephen Hemminger
2015-02-20 20:23         ` Dumitrescu, Cristian
2015-02-20 21:01           ` Thomas Monjalon
2015-02-20 21:28             ` Dumitrescu, Cristian
2015-02-21  1:53               ` Stephen Hemminger
2015-02-23 12:06                 ` Dumitrescu, Cristian [this message]
2015-02-09 23:46   ` Neil Horman

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