DPDK patches and discussions
 help / color / Atom feed
From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
	Thomas Monjalon <thomas@monjalon.net>,
	Stephen Hemminger <stephen@networkplumber.org>
Cc: dev@dpdk.org, techboard@dpdk.org, Min Hu <humin29@huawei.com>
Subject: Re: [dpdk-dev] [RFC 1/2] ethdev: move queue stats to xstats
Date: Tue, 13 Oct 2020 23:41:41 +0100
Message-ID: <7fb36143-dd8a-7c52-7223-00024edda598@intel.com> (raw)
In-Reply-To: <d6a8f663-ab30-43a1-0982-a0707b141c47@oktetlabs.ru>

On 10/13/2020 10:16 AM, Andrew Rybchenko wrote:
> On 10/13/20 12:05 PM, Thomas Monjalon wrote:
>> 13/10/2020 10:31, Andrew Rybchenko:
>>> On 10/13/20 12:53 AM, Thomas Monjalon wrote:
>>>> 12/10/2020 18:46, Ferruh Yigit:
>>>>> Queue stats are stored in 'struct rte_eth_stats' as array and array size
>>>>> is defined by 'RTE_ETHDEV_QUEUE_STAT_CNTRS' compile time flag.
>>>>>
>>>>> As a result of technical board discussion, decided to remove the queue
>>>>> statistics from 'struct rte_eth_stats' in the long term.
>>>>>
>>>>> Instead PMDs should represent the queue statistics via xstats, this
>>>>> gives more flexibility on the number of the queues supported.
>>>>
>>>> Yes
>>>
>>> I like Stephen's idea to have dedicated API to get stats per
>>> queue. Of course it is doable via getting xstats by IDs,
>>> but IMHO it is over-complicated. From the other hand
>>> it sounds like a duplication to have it in xstats and
>>> dedicated API (basically the same as we have for basic
>>> stats and xstats).
>>
>> Please read my proposal to have fixed ids for common stats
>> and fixed id ranges for stats per queue:
>> https://fast.dpdk.org/events/slides/DPDK-2019-09-Ethernet_Statistics.pdf
>> (slide 11)
>>
> 
> Ah, yes, I forgot that point. Makes sense and LGTM.
> 

But we don't have (and not planned for) the fixed id ranges in the xstats yes, 
and agree it will be complicated to parse the queue stats from xstats without it.

Should we wait for the fixed id ranges change before we continue with this patch?

  reply index

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12 16:46 Ferruh Yigit
2020-10-12 16:46 ` [dpdk-dev] [RFC 2/2] doc: announce queue stats moving " Ferruh Yigit
2020-10-12 16:55   ` [dpdk-dev] [dpdk-techboard] " Stephen Hemminger
2020-10-12 21:53 ` [dpdk-dev] [RFC 1/2] ethdev: move queue stats " Thomas Monjalon
2020-10-13  8:31   ` Andrew Rybchenko
2020-10-13  9:05     ` Thomas Monjalon
2020-10-13  9:16       ` Andrew Rybchenko
2020-10-13 22:41         ` Ferruh Yigit [this message]
2020-10-13 15:04       ` Stephen Hemminger
2020-10-13 22:53   ` Ferruh Yigit
2020-10-14  2:26 ` [dpdk-dev] [RFC v2 1/2] ethdev: provide device flag to bypass ethdev queue xstats Ferruh Yigit
2020-10-14  2:26   ` [dpdk-dev] [RFC v2 2/2] doc: announce queue stats moving to xstats Ferruh Yigit
2020-10-14  8:43     ` Kinsella, Ray
2020-10-16 14:34       ` Thomas Monjalon
2020-10-16 14:36         ` Bruce Richardson
2020-10-16 14:37         ` Jerin Jacob
2020-10-16 15:07         ` Stephen Hemminger
2020-10-16 17:48           ` Ajit Khaparde
2020-10-14  9:35     ` Igor Ryzhov
2020-10-14  9:45       ` Thomas Monjalon
2020-10-15  7:55         ` Igor Ryzhov
2020-10-15  8:03           ` Thomas Monjalon
2020-10-15 17:39             ` Igor Ryzhov
2020-10-15 17:45               ` Thomas Monjalon
2020-10-14  8:40   ` [dpdk-dev] [RFC v2 1/2] ethdev: provide device flag to bypass ethdev queue xstats Wang, Haiyue
2020-10-14  8:46   ` Wang, Xiao W
2020-10-16 12:16   ` Ferruh Yigit
2020-10-16 14:32     ` Thomas Monjalon
2020-10-16 21:38       ` Ferruh Yigit
2020-10-19  3:03     ` Min Hu (Connor)
2020-10-18 12:09   ` Xu, Rosen

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=7fb36143-dd8a-7c52-7223-00024edda598@intel.com \
    --to=ferruh.yigit@intel.com \
    --cc=andrew.rybchenko@oktetlabs.ru \
    --cc=dev@dpdk.org \
    --cc=humin29@huawei.com \
    --cc=stephen@networkplumber.org \
    --cc=techboard@dpdk.org \
    --cc=thomas@monjalon.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

Archives are clonable:
	git clone --mirror http://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ http://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev


Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/ public-inbox