From: "Morten Brørup" <mb@smartsharesystems.com>
To: "Thomas Monjalon" <thomas@monjalon.net>,
"Ferruh Yigit" <ferruh.yigit@amd.com>,
"Jerin Jacob" <jerinjacobk@gmail.com>, <jerinj@marvell.com>,
<bruce.richardson@intel.com>
Cc: <dev@dpdk.org>, "Ankur Dwivedi" <adwivedi@marvell.com>,
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Subject: trace point symbols
Date: Thu, 12 Jan 2023 10:43:38 +0100 [thread overview]
Message-ID: <98CBD80474FA8B44BF855DF32C47DC35D87666@smartserver.smartshare.dk> (raw)
In-Reply-To: <2036238.VLH7GnMWUR@thomas>
> From: Thomas Monjalon [mailto:thomas@monjalon.net]
> Sent: Thursday, 12 January 2023 10.11
>
> 15/12/2022 07:49, Jerin Jacob:
> > On Wed, Dec 14, 2022 at 5:40 PM Ferruh Yigit <ferruh.yigit@amd.com>
> wrote:
> > >
> > > On 12/14/2022 10:40 AM, Jerin Jacob wrote:
> > > > On Wed, Dec 14, 2022 at 1:37 AM Ferruh Yigit
> <ferruh.yigit@amd.com> wrote:
> > > >> 4) Why we need to export trace point variables in the .map
> files,
> > > >> like '__rte_eth_trace_allmulticast_disable' one...
> > > >
> > > > If you see app/test/test_trace.c example
> > > >
> > > > There are two-way to operate on trace point, We need to export
> symbol
> > > > iff we need option 1
> > > >
> > > > option1:
> > > > rte_trace_point_enable(&__app_dpdk_test_tp);
> > > >
> > > > option2:
> > > > rte_trace_point_t *trace =
> rte_trace_point_lookup("app.dpdk.test.tp");
> > > > rte_trace_point_enable(trace);
rte_trace_point_enable() allows passing a NULL pointer, so enabling a trace point can still be a one-liner:
rte_trace_point_enable(rte_trace_point_lookup("app.dpdk.test.tp"));
With option2, we lose the build-time error if trying to enable a non-existing trace point. But it's an acceptable tradeoff.
> > > >
> > >
> > > got it, do we really need direct access to trace point (option 1),
> I
> > > would be OK to remove that option to not expose all these trace
> point
> > > objects.
> >
> > Looks good to me.
>
> I would like to see a policy regarding trace symbols.
> If we decide option 1 is not so useful,
> then we should not export trace symbols at all and document this
> policy.
> Also there are some trace symbols which could be cleaned up.
+1 for not exposing trace point symbols at all.
The trace point symbols are only used internally by DPDK, so they should not be part of DPDK's public API.
It might also make it easier for Bruce to move the trace library out of EAL.
I'm not familiar with the CTF format, but I assume that if we don't expose the trace point symbols, the trace points can still be identified when parsing the trace file.
next prev parent reply other threads:[~2023-01-12 9:43 UTC|newest]
Thread overview: 172+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-04 13:44 [PATCH 0/6] add trace points in ethdev library Ankur Dwivedi
2022-08-04 13:44 ` [PATCH 1/6] ethdev: add trace points Ankur Dwivedi
2022-09-12 11:00 ` Andrew Rybchenko
2022-09-13 6:48 ` [EXT] " Ankur Dwivedi
2022-09-13 7:18 ` Andrew Rybchenko
2022-09-26 15:03 ` Andrew Rybchenko
2022-09-28 4:02 ` Jerin Jacob
2022-08-04 13:44 ` [PATCH 2/6] ethdev: add trace points for flow Ankur Dwivedi
2022-08-04 13:44 ` [PATCH 3/6] ethdev: add trace points for mtr Ankur Dwivedi
2022-08-04 13:44 ` [PATCH 4/6] ethdev: add trace points for tm Ankur Dwivedi
2022-08-04 13:44 ` [PATCH 5/6] ethdev: add trace points for driver Ankur Dwivedi
2022-08-04 13:44 ` [PATCH 6/6] devtools: add trace function check in checkpatch Ankur Dwivedi
2022-09-29 10:29 ` [PATCH v2 0/4] add trace points in ethdev library Ankur Dwivedi
2022-09-29 10:29 ` [PATCH v2 1/4] ethdev: add trace points Ankur Dwivedi
2022-10-06 7:09 ` Andrew Rybchenko
2022-10-06 7:24 ` [EXT] " Ankur Dwivedi
2022-10-06 7:27 ` Andrew Rybchenko
2022-10-06 7:43 ` Ankur Dwivedi
2022-10-06 7:50 ` Andrew Rybchenko
2022-10-06 7:57 ` David Marchand
2022-10-12 9:49 ` Jerin Jacob
2022-10-12 9:56 ` David Marchand
2022-09-29 10:29 ` [PATCH v2 2/4] ethdev: add trace points for flow Ankur Dwivedi
2022-09-29 10:29 ` [PATCH v2 3/4] ethdev: add trace points for mtr Ankur Dwivedi
2022-09-29 10:29 ` [PATCH v2 4/4] ethdev: add trace points for tm Ankur Dwivedi
2022-10-06 7:10 ` [PATCH v2 0/4] add trace points in ethdev library Andrew Rybchenko
2022-10-06 7:26 ` [EXT] " Ankur Dwivedi
2022-10-06 7:28 ` Andrew Rybchenko
2022-10-06 7:47 ` Ankur Dwivedi
2022-10-06 12:55 ` Ankur Dwivedi
2022-10-06 15:18 ` [PATCH v3 " Ankur Dwivedi
2022-10-06 15:18 ` [PATCH v3 1/4] ethdev: add trace points Ankur Dwivedi
2022-10-06 16:03 ` Morten Brørup
2022-10-07 16:23 ` Ankur Dwivedi
2022-10-10 6:39 ` Ankur Dwivedi
2022-12-12 18:34 ` Ferruh Yigit
2022-12-12 18:38 ` Ferruh Yigit
2022-12-14 10:34 ` David Marchand
2022-12-14 11:04 ` Ferruh Yigit
2022-12-13 20:06 ` Ferruh Yigit
2022-12-14 10:40 ` Jerin Jacob
2022-12-14 12:10 ` Ferruh Yigit
2022-12-15 6:49 ` Jerin Jacob
2023-01-12 9:10 ` Thomas Monjalon
2023-01-12 9:43 ` Morten Brørup [this message]
2023-01-13 11:22 ` trace point symbols Jerin Jacob
2022-12-14 13:52 ` [EXT] Re: [PATCH v3 1/4] ethdev: add trace points Ankur Dwivedi
2022-10-06 15:18 ` [PATCH v3 2/4] ethdev: add trace points for flow Ankur Dwivedi
2022-10-06 15:18 ` [PATCH v3 3/4] ethdev: add trace points for mtr Ankur Dwivedi
2022-10-06 15:18 ` [PATCH v3 4/4] ethdev: add trace points for tm Ankur Dwivedi
2022-12-22 6:32 ` [PATCH v4 0/6] add trace points in ethdev library Ankur Dwivedi
2022-12-22 6:33 ` [PATCH v4 1/6] eal: trace: add trace point emit for array Ankur Dwivedi
2022-12-22 9:06 ` Sunil Kumar Kori
2022-12-22 10:32 ` Morten Brørup
2022-12-22 15:18 ` Ankur Dwivedi
2022-12-22 6:33 ` [PATCH v4 2/6] ethdev: add trace points for ethdev Ankur Dwivedi
2022-12-22 10:50 ` Morten Brørup
2022-12-22 6:33 ` [PATCH v4 3/6] ethdev: add trace points for remaining functions Ankur Dwivedi
2022-12-22 6:33 ` [PATCH v4 4/6] ethdev: add trace points for flow Ankur Dwivedi
2022-12-22 6:33 ` [PATCH v4 5/6] ethdev: add trace points for mtr Ankur Dwivedi
2022-12-22 6:33 ` [PATCH v4 6/6] ethdev: add trace points for tm Ankur Dwivedi
2023-01-12 11:21 ` [PATCH v5 0/6] add trace points in ethdev library Ankur Dwivedi
2023-01-12 11:21 ` [PATCH v5 1/6] eal: trace: add trace point emit for blob Ankur Dwivedi
2023-01-12 12:38 ` Morten Brørup
2023-01-12 13:22 ` Ankur Dwivedi
2023-01-12 16:29 ` Sunil Kumar Kori
2023-01-12 16:43 ` Sunil Kumar Kori
2023-01-12 11:21 ` [PATCH v5 2/6] ethdev: add trace points for ethdev Ankur Dwivedi
2023-01-12 16:34 ` Sunil Kumar Kori
2023-01-12 11:21 ` [PATCH v5 3/6] ethdev: add trace points for remaining functions Ankur Dwivedi
2023-01-12 16:38 ` Sunil Kumar Kori
2023-01-13 6:31 ` Ankur Dwivedi
2023-01-13 8:11 ` Sunil Kumar Kori
2023-01-12 11:21 ` [PATCH v5 4/6] ethdev: add trace points for flow Ankur Dwivedi
2023-01-12 11:21 ` [PATCH v5 5/6] ethdev: add trace points for mtr Ankur Dwivedi
2023-01-12 11:21 ` [PATCH v5 6/6] ethdev: add trace points for tm Ankur Dwivedi
2023-01-12 17:03 ` [PATCH v5 0/6] add trace points in ethdev library Ferruh Yigit
2023-01-13 6:32 ` [EXT] " Ankur Dwivedi
2023-01-20 8:40 ` [PATCH v6 " Ankur Dwivedi
2023-01-20 8:40 ` [PATCH v6 1/6] eal: trace: add trace point emit for blob Ankur Dwivedi
2023-01-20 10:11 ` Morten Brørup
2023-01-23 17:27 ` Ferruh Yigit
2023-01-25 15:02 ` [EXT] " Ankur Dwivedi
2023-01-25 16:09 ` Ferruh Yigit
2023-01-30 13:35 ` Ankur Dwivedi
2023-01-20 8:40 ` [PATCH v6 2/6] ethdev: add trace points for ethdev (part one) Ankur Dwivedi
2023-01-23 17:28 ` Ferruh Yigit
2023-01-30 16:01 ` [EXT] " Ankur Dwivedi
2023-01-31 18:38 ` Ferruh Yigit
2023-01-31 18:46 ` Jerin Jacob
2023-01-31 22:20 ` Ferruh Yigit
2023-02-01 8:31 ` Jerin Jacob
2023-02-01 10:50 ` Ferruh Yigit
2023-02-01 15:42 ` Ankur Dwivedi
2023-02-02 8:56 ` Ferruh Yigit
2023-02-02 10:20 ` Ankur Dwivedi
2023-02-02 12:52 ` Ferruh Yigit
2023-02-02 13:40 ` Ankur Dwivedi
2023-02-02 13:44 ` Ferruh Yigit
2023-02-02 13:53 ` Ankur Dwivedi
2023-01-20 8:40 ` [PATCH v6 3/6] ethdev: add trace points for ethdev (part two) Ankur Dwivedi
2023-01-20 8:40 ` [PATCH v6 4/6] ethdev: add trace points for flow Ankur Dwivedi
2023-01-20 8:40 ` [PATCH v6 5/6] ethdev: add trace points for mtr Ankur Dwivedi
2023-01-20 8:40 ` [PATCH v6 6/6] ethdev: add trace points for tm Ankur Dwivedi
2023-01-23 9:02 ` [PATCH v7 0/6] add trace points in ethdev library Ankur Dwivedi
2023-01-23 9:02 ` [PATCH v7 1/6] eal: trace: add trace point emit for blob Ankur Dwivedi
2023-01-23 13:01 ` Jerin Jacob
2023-01-23 13:08 ` Morten Brørup
2023-01-23 13:39 ` Ankur Dwivedi
2023-01-30 7:30 ` Sunil Kumar Kori
2023-01-30 8:15 ` Morten Brørup
2023-01-30 8:40 ` Sunil Kumar Kori
2023-01-23 9:02 ` [PATCH v7 2/6] ethdev: add trace points for ethdev (part one) Ankur Dwivedi
2023-01-30 8:45 ` Sunil Kumar Kori
2023-01-23 9:02 ` [PATCH v7 3/6] ethdev: add trace points for ethdev (part two) Ankur Dwivedi
2023-01-30 8:47 ` Sunil Kumar Kori
2023-01-23 9:02 ` [PATCH v7 4/6] ethdev: add trace points for flow Ankur Dwivedi
2023-02-02 13:52 ` Ori Kam
2023-02-02 13:56 ` Ori Kam
2023-02-02 15:45 ` Ankur Dwivedi
2023-01-23 9:02 ` [PATCH v7 5/6] ethdev: add trace points for mtr Ankur Dwivedi
2023-01-30 8:50 ` Sunil Kumar Kori
2023-01-23 9:02 ` [PATCH v7 6/6] ethdev: add trace points for tm Ankur Dwivedi
2023-02-06 11:58 ` [PATCH v8 0/6] add trace points in ethdev library Ankur Dwivedi
2023-02-06 11:58 ` [PATCH v8 1/6] eal: trace: add trace point emit for blob Ankur Dwivedi
2023-02-06 14:48 ` David Marchand
2023-02-07 5:08 ` [EXT] " Ankur Dwivedi
2023-02-06 11:58 ` [PATCH v8 2/6] ethdev: add trace points for ethdev (part one) Ankur Dwivedi
2023-02-06 11:58 ` [PATCH v8 3/6] ethdev: add trace points for ethdev (part two) Ankur Dwivedi
2023-02-06 11:58 ` [PATCH v8 4/6] ethdev: add trace points for flow Ankur Dwivedi
2023-02-06 11:58 ` [PATCH v8 5/6] ethdev: add trace points for mtr Ankur Dwivedi
2023-02-06 11:58 ` [PATCH v8 6/6] ethdev: add trace points for tm Ankur Dwivedi
2023-02-07 6:32 ` [PATCH v9 0/6] add trace points in ethdev library Ankur Dwivedi
2023-02-07 6:32 ` [PATCH v9 1/6] eal: trace: add trace point emit for blob Ankur Dwivedi
2023-02-08 1:16 ` Ferruh Yigit
2023-02-07 6:32 ` [PATCH v9 2/6] ethdev: add trace points for ethdev (part one) Ankur Dwivedi
2023-02-08 1:16 ` Ferruh Yigit
2023-02-08 10:30 ` [EXT] " Ankur Dwivedi
2023-02-07 6:32 ` [PATCH v9 3/6] ethdev: add trace points for ethdev (part two) Ankur Dwivedi
2023-02-08 1:20 ` Ferruh Yigit
2023-02-08 10:42 ` [EXT] " Ankur Dwivedi
2023-02-08 11:00 ` Ferruh Yigit
2023-02-08 11:04 ` Ferruh Yigit
2023-02-08 14:15 ` Ankur Dwivedi
2023-02-08 15:05 ` Ferruh Yigit
2023-02-08 15:11 ` Ankur Dwivedi
2023-02-07 6:32 ` [PATCH v9 4/6] ethdev: add trace points for flow Ankur Dwivedi
2023-02-07 6:32 ` [PATCH v9 5/6] ethdev: add trace points for mtr Ankur Dwivedi
2023-02-07 6:32 ` [PATCH v9 6/6] ethdev: add trace points for tm Ankur Dwivedi
2023-02-08 13:28 ` [PATCH v10 0/6] add trace points in ethdev library Ankur Dwivedi
2023-02-08 13:28 ` [PATCH v10 1/6] eal: trace: add trace point emit for blob Ankur Dwivedi
2023-02-08 13:28 ` [PATCH v10 2/6] ethdev: add trace points for ethdev (part one) Ankur Dwivedi
2023-02-08 13:28 ` [PATCH v10 3/6] ethdev: add trace points for ethdev (part two) Ankur Dwivedi
2023-02-08 13:28 ` [PATCH v10 4/6] ethdev: add trace points for flow Ankur Dwivedi
2023-02-08 16:15 ` Ori Kam
2023-02-08 13:28 ` [PATCH v10 5/6] ethdev: add trace points for mtr Ankur Dwivedi
2023-02-08 13:28 ` [PATCH v10 6/6] ethdev: add trace points for tm Ankur Dwivedi
2023-03-15 7:14 ` Yuan, DukaiX
2023-03-16 9:58 ` Ankur Dwivedi
2023-02-08 17:12 ` [PATCH v11 0/6] add trace points in ethdev library Ankur Dwivedi
2023-02-08 17:12 ` [PATCH v11 1/6] eal: trace: add trace point emit for blob Ankur Dwivedi
2023-02-08 17:12 ` [PATCH v11 2/6] ethdev: add trace points for ethdev (part one) Ankur Dwivedi
2023-02-17 7:32 ` Li, WeiyuanX
2023-02-08 17:12 ` [PATCH v11 3/6] ethdev: add trace points for ethdev (part two) Ankur Dwivedi
2023-02-08 20:09 ` Ferruh Yigit
2023-02-08 17:12 ` [PATCH v11 4/6] ethdev: add trace points for flow Ankur Dwivedi
2023-02-08 17:12 ` [PATCH v11 5/6] ethdev: add trace points for mtr Ankur Dwivedi
2023-02-08 17:12 ` [PATCH v11 6/6] ethdev: add trace points for tm Ankur Dwivedi
2023-02-08 20:09 ` [PATCH v11 0/6] add trace points in ethdev library Ferruh Yigit
2023-02-26 18:34 ` Ali Alnubani
2023-02-27 9:38 ` Ankur Dwivedi
2023-01-23 17:30 ` [PATCH v6 " Ferruh Yigit
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