From: Bruce Richardson <bruce.richardson@intel.com>
To: "Morten Brørup" <mb@smartsharesystems.com>
Cc: David Marchand <david.marchand@redhat.com>, <dev@dpdk.org>,
Jerin Jacob <jerinj@marvell.com>,
Sunil Kumar Kori <skori@marvell.com>,
Ciara Power <ciara.power@intel.com>
Subject: Re: [PATCH] trace: take live traces via telemetry
Date: Tue, 18 Oct 2022 17:20:09 +0100 [thread overview]
Message-ID: <Y07SOQS56t9b6rrW@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <98CBD80474FA8B44BF855DF32C47DC35D87411@smartserver.smartshare.dk>
On Tue, Oct 18, 2022 at 04:33:49PM +0200, Morten Brørup wrote:
> > From: David Marchand [mailto:david.marchand@redhat.com]
> > Sent: Thursday, 13 October 2022 09.49
> >
> > Register telemetry commands to list and configure trace points and
> > later
> > save traces for a running DPDK application.
> >
> > Note: trace point names contain a '.', so the list of valid characters
> > used in telemetry commands and dictionary keys has been extended.
>
> Regarding '.' in telemetry commands and dictionary keys, I agree with Bruce to allow it.
>
> >
> > Example with testpmd running with two net/null ports (startup command
> > from devtools/test-null.sh):
> >
> > --> /trace/list,lib.ethdev.*
> > {"/trace/list": {"lib.ethdev.configure": "Disabled",
> > "lib.ethdev.rxq.setup": "Disabled",
> > "lib.ethdev.txq.setup": "Disabled",
> > "lib.ethdev.start": "Disabled",
> > "lib.ethdev.stop": "Disabled",
> > "lib.ethdev.close": "Disabled",
> > "lib.ethdev.rx.burst": "Disabled",
> > "lib.ethdev.tx.burst": "Disabled"}}
>
> Jerin commented that "Disabled"/"Enabled" are a bit verbose, and suggested shortening them.
>
> It seems to me that these values are Boolean, and should be true or false (not surrounded by quotation marks), instead of some string representing a Boolean value. Note: This would require expanding the telemetry library with a Boolean type.
>
> Alternatively, use integer values 0 or 1.
>
> If we want to represent Boolean values as strings, I vote for "TRUE" and "FALSE", using all upper case to indicate that they are magic strings - and also to help avoid confusion with the JSON true/false Boolean values, which are all lower case.
+1 for integer values (at least in the short term). I don't think we want
these as strings.
/Bruce
next prev parent reply other threads:[~2022-10-18 16:20 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-13 7:49 David Marchand
2022-10-13 14:09 ` Jerin Jacob
2022-10-18 13:14 ` Bruce Richardson
2022-10-19 10:53 ` Bruce Richardson
2022-10-19 13:46 ` David Marchand
2022-10-18 14:33 ` Morten Brørup
2022-10-18 16:20 ` Bruce Richardson [this message]
2022-10-19 7:38 ` David Marchand
2022-10-19 8:21 ` Morten Brørup
2022-10-19 8:28 ` David Marchand
2022-10-25 9:00 ` [PATCH v3 0/4] Telemetry support for traces David Marchand
2022-10-25 9:00 ` [PATCH v3 1/4] telemetry: support boolean type David Marchand
2022-10-25 9:34 ` Mattias Rönnblom
2022-10-25 9:43 ` David Marchand
2022-10-25 10:38 ` Bruce Richardson
2022-10-27 8:53 ` Power, Ciara
2022-10-25 9:00 ` [PATCH v3 2/4] telemetry: extend valid command characters David Marchand
2022-10-25 9:12 ` Power, Ciara
2022-10-25 9:00 ` [PATCH v3 3/4] trace: enable trace operations via telemetry David Marchand
2022-10-25 10:18 ` Mattias Rönnblom
2022-10-25 9:00 ` [PATCH v3 4/4] trace: create new directory for each trace dump David Marchand
2022-10-25 9:41 ` Mattias Rönnblom
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