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From: Konstantin Ananyev <konstantin.ananyev@huawei.com>
To: Robin Jarry <rjarry@redhat.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "Tyler Retzlaff" <roretzla@linux.microsoft.com>,
	"Kevin Laatz" <kevin.laatz@intel.com>,
	"Morten Brørup" <mb@smartsharesystems.com>
Subject: RE: [PATCH v5 2/4] eal: allow applications to report their cpu usage
Date: Mon, 6 Feb 2023 20:07:52 +0000	[thread overview]
Message-ID: <b7b31d1fde804fbb9e663416d94a15b6@huawei.com> (raw)
In-Reply-To: <CPVGVSVM7VPW.4IZSW3GL5H0N@ringo>



> 
> Konstantin Ananyev, Jan 04, 2023 at 11:53:
> > Probably we can even print warning or so if some-one tries to overwrite
> > it once again.
> 
> I'm not sure that is necessary. If an application wants to reset the
> callback to NULL at any point in time, I don't see why DPDK should tell
> them it is a bad thing.

Problem is not in resetting cb function itself.
Usually with CB user needs some sort of data structure (to accumulate stats, track states, etc.).
If we allow to reset the CB, then it arises the question when/how should we allow
user to free associated data?
And, as I undersand, we don't have a clear way to do it.  



  reply	other threads:[~2023-02-06 20:07 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-23 10:26 [RFC PATCH 0/4] lcore telemetry improvements Robin Jarry
2022-11-23 10:26 ` [RFC PATCH 1/4] eal: add lcore info in telemetry Robin Jarry
2022-11-23 16:44   ` Stephen Hemminger
2022-11-23 23:15     ` Robin Jarry
2022-11-23 10:26 ` [RFC PATCH 2/4] eal: allow applications to report their cpu utilization Robin Jarry
2022-11-23 10:26 ` [RFC PATCH 3/4] testpmd: add show lcores command Robin Jarry
2022-11-23 10:26 ` [RFC PATCH 4/4] testpmd: report lcore usage Robin Jarry
2022-11-28  8:59 ` [PATCH v2 0/4] lcore telemetry improvements Robin Jarry
2022-11-28  8:59   ` [PATCH v2 1/4] eal: add lcore info in telemetry Robin Jarry
2022-11-28  8:59   ` [PATCH v2 2/4] eal: allow applications to report their cpu cycles utilization Robin Jarry
2022-11-28 10:52     ` Morten Brørup
2022-11-29  8:19       ` Robin Jarry
2022-11-28  8:59   ` [PATCH v2 3/4] testpmd: add dump_lcores command Robin Jarry
2022-11-28  8:59   ` [PATCH v2 4/4] testpmd: report lcore usage Robin Jarry
2022-11-29 15:33 ` [PATCH v3 0/4] lcore telemetry improvements Robin Jarry
2022-11-29 15:33   ` [PATCH v3 1/4] eal: add lcore info in telemetry Robin Jarry
2022-11-29 15:33   ` [PATCH v3 2/4] eal: allow applications to report their cpu cycles usage Robin Jarry
2022-11-29 16:10     ` Mattias Rönnblom
2022-12-07 11:00       ` Robin Jarry
2022-12-07 11:21         ` Morten Brørup
2022-11-29 15:33   ` [PATCH v3 3/4] testpmd: add dump_lcores command Robin Jarry
2022-11-29 15:33   ` [PATCH v3 4/4] testpmd: report lcore usage Robin Jarry
2022-11-29 16:14   ` [PATCH v3 0/4] lcore telemetry improvements Mattias Rönnblom
2022-12-07 16:21 ` [PATCH " Robin Jarry
2022-12-07 16:21   ` [PATCH 1/4] eal: add lcore info in telemetry Robin Jarry
2022-12-07 16:21   ` [PATCH 2/4] eal: allow applications to report their cpu usage Robin Jarry
2022-12-13 15:49     ` Robin Jarry
2022-12-13 16:39       ` Morten Brørup
2022-12-13 17:45       ` Tyler Retzlaff
2022-12-07 16:21   ` [PATCH 3/4] testpmd: add dump_lcores command Robin Jarry
2022-12-07 16:21   ` [PATCH 4/4] testpmd: report lcore usage Robin Jarry
2022-12-16 10:21 ` [PATCH v5 0/4] lcore telemetry improvements Robin Jarry
2022-12-16 10:21   ` [PATCH v5 1/4] eal: add lcore info in telemetry Robin Jarry
2023-01-18  9:42     ` Kevin Laatz
2023-01-18 10:21       ` Morten Brørup
2023-01-18 11:03         ` Kevin Laatz
2023-01-18 11:35           ` Morten Brørup
2023-01-18 14:45       ` Robin Jarry
2023-01-18 16:01         ` Kevin Laatz
2023-01-18 16:17           ` Robin Jarry
2022-12-16 10:21   ` [PATCH v5 2/4] eal: allow applications to report their cpu usage Robin Jarry
2022-12-16 10:47     ` Morten Brørup
2023-01-04 10:13       ` Robin Jarry
2023-01-04 10:28         ` Morten Brørup
2022-12-22 12:41     ` Konstantin Ananyev
2023-01-04 10:10       ` Robin Jarry
2023-01-04 10:53         ` Konstantin Ananyev
2023-01-18 16:46           ` Robin Jarry
2023-02-06 20:07             ` Konstantin Ananyev [this message]
2023-02-06 20:29               ` Robin Jarry
2023-02-06 20:34                 ` Konstantin Ananyev
2023-02-06 20:39                   ` Robin Jarry
2023-02-06 20:44                     ` Konstantin Ananyev
2023-02-06 20:55                       ` Robin Jarry
2023-02-07 13:12                         ` Konstantin Ananyev
2023-01-04 10:15     ` Robin Jarry
2022-12-16 10:21   ` [PATCH v5 3/4] testpmd: add dump_lcores command Robin Jarry
2022-12-22 12:43     ` Konstantin Ananyev
2022-12-16 10:21   ` [PATCH v5 4/4] testpmd: report lcore usage Robin Jarry
2022-12-22 12:44     ` Konstantin Ananyev
2023-01-18  9:13   ` [PATCH v5 0/4] lcore telemetry improvements Robin Jarry
2023-01-19 15:06 ` [PATCH v6 0/5] " Robin Jarry
2023-01-19 15:06   ` [PATCH v6 1/5] eal: add lcore info in telemetry Robin Jarry
2023-01-19 19:42     ` Kevin Laatz
2023-01-26 11:19     ` David Marchand
2023-01-19 15:06   ` [PATCH v6 2/5] eal: allow applications to report their cpu usage Robin Jarry
2023-01-19 19:42     ` Kevin Laatz
2023-01-26 11:22     ` David Marchand
2023-01-19 15:06   ` [PATCH v6 3/5] testpmd: add dump_lcores command Robin Jarry
2023-01-19 19:42     ` Kevin Laatz
2023-01-26 11:22     ` David Marchand
2023-01-19 15:06   ` [PATCH v6 4/5] testpmd: report lcore usage Robin Jarry
2023-01-19 19:42     ` Kevin Laatz
2023-01-19 15:06   ` [PATCH v6 5/5] telemetry: add /eal/lcore/usage endpoint Robin Jarry
2023-01-19 16:21     ` Morten Brørup
2023-01-19 16:34       ` Robin Jarry
2023-01-19 16:45         ` Morten Brørup
2023-01-19 19:42     ` Kevin Laatz
2023-02-02 13:43 ` [PATCH v8 0/5] lcore telemetry improvements Robin Jarry
2023-02-02 13:43   ` [PATCH v8 1/5] eal: add lcore info in telemetry Robin Jarry
2023-02-06  3:50     ` fengchengwen
2023-02-06  8:22       ` Robin Jarry
2023-02-06 11:22         ` fengchengwen
2023-02-06 11:46           ` Robin Jarry
2023-02-06 12:08             ` fengchengwen
2023-02-02 13:43   ` [PATCH v8 2/5] eal: report applications lcore usage Robin Jarry
2023-02-06  4:00     ` fengchengwen
2023-02-06  7:36       ` Morten Brørup
2023-02-06  8:21         ` Robin Jarry
2023-02-06 11:18         ` fengchengwen
2023-02-06  8:48     ` David Marchand
2023-02-06  9:03       ` Robin Jarry
2023-02-02 13:43   ` [PATCH v8 3/5] app/testpmd: add dump command for lcores Robin Jarry
2023-02-06  3:34     ` fengchengwen
2023-02-02 13:43   ` [PATCH v8 4/5] app/testpmd: report lcore usage Robin Jarry
2023-02-06  3:31     ` fengchengwen
2023-02-06  8:58     ` David Marchand
2023-02-06  9:08       ` Robin Jarry
2023-02-06 15:06         ` David Marchand
2023-02-02 13:43   ` [PATCH v8 5/5] eal: add lcore usage telemetry endpoint Robin Jarry
2023-02-02 14:00     ` Morten Brørup
2023-02-06  3:27     ` fengchengwen
2023-02-06  8:24       ` Robin Jarry
2023-02-06 11:32         ` fengchengwen
2023-02-05 23:11   ` [PATCH v8 0/5] lcore telemetry improvements Thomas Monjalon
2023-02-07 19:37 ` [PATCH v9 " Robin Jarry
2023-02-07 19:37 ` [PATCH v9 1/5] eal: add lcore info in telemetry Robin Jarry
2023-02-08  2:24   ` lihuisong (C)
2023-02-08 17:04     ` Robin Jarry
2023-02-09  2:18       ` lihuisong (C)
2023-02-09  8:31         ` David Marchand
2023-02-09  8:38           ` David Marchand
2023-02-07 19:37 ` [PATCH v9 2/5] eal: report applications lcore usage Robin Jarry
2023-02-07 19:37 ` [PATCH v9 3/5] app/testpmd: add dump command for lcores Robin Jarry
2023-02-07 19:37 ` [PATCH v9 4/5] app/testpmd: report lcore usage Robin Jarry
2023-02-08  2:59   ` lihuisong (C)
2023-02-07 19:37 ` [PATCH v9 5/5] eal: add lcore usage telemetry endpoint Robin Jarry
2023-02-08  8:45 ` [RESEND PATCH v9 0/5] lcore telemetry improvements Robin Jarry
2023-02-08  8:45   ` [RESEND PATCH v9 1/5] eal: add lcore info in telemetry Robin Jarry
2023-02-08  8:45   ` [RESEND PATCH v9 2/5] eal: report applications lcore usage Robin Jarry
2023-02-08  8:45   ` [RESEND PATCH v9 3/5] app/testpmd: add dump command for lcores Robin Jarry
2023-02-08  8:45   ` [RESEND PATCH v9 4/5] app/testpmd: report lcore usage Robin Jarry
2023-02-09  8:43     ` David Marchand
2023-02-08  8:45   ` [RESEND PATCH v9 5/5] eal: add lcore usage telemetry endpoint Robin Jarry
2023-02-09  8:44   ` [RESEND PATCH v9 0/5] lcore telemetry improvements David Marchand
2023-02-09  9:43 ` [PATCH v10 " Robin Jarry
2023-02-09  9:43   ` [PATCH v10 1/5] eal: add lcore info in telemetry Robin Jarry
2023-02-09  9:43   ` [PATCH v10 2/5] eal: report applications lcore usage Robin Jarry
2023-02-09  9:43   ` [PATCH v10 3/5] app/testpmd: add dump command for lcores Robin Jarry
2023-02-09  9:43   ` [PATCH v10 4/5] app/testpmd: report lcore usage Robin Jarry
2023-02-09  9:43   ` [PATCH v10 5/5] eal: add lcore usage telemetry endpoint Robin Jarry
2023-02-10 13:27   ` [PATCH v10 0/5] lcore telemetry improvements David Marchand

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