From: Ruifeng Wang <Ruifeng.Wang@arm.com>
To: "jerinj@marvell.com" <jerinj@marvell.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
"thomas@monjalon.net" <thomas@monjalon.net>,
"jerinj@marvell.com" <jerinj@marvell.com>, nd <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH] doc: enhance arm64 profiling documentation
Date: Mon, 12 Jul 2021 06:39:15 +0000 [thread overview]
Message-ID: <AM5PR0802MB246598779A0509429765F1619E159@AM5PR0802MB2465.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <20210711075821.3022587-1-jerinj@marvell.com>
> -----Original Message-----
> From: jerinj@marvell.com <jerinj@marvell.com>
> Sent: Sunday, July 11, 2021 3:58 PM
> Cc: dev@dpdk.org; thomas@monjalon.net; Ruifeng Wang
> <Ruifeng.Wang@arm.com>; jerinj@marvell.com
> Subject: [PATCH] doc: enhance arm64 profiling documentation
>
> From: Jerin Jacob <jerinj@marvell.com>
>
> Documented the role of RTE_ARM_EAL_RDTSC_USE_PMU to enable PMU
> based rte_rdtsc().
>
> Signed-off-by: Jerin Jacob <jerinj@marvell.com>
> ---
> doc/guides/prog_guide/profile_app.rst | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/doc/guides/prog_guide/profile_app.rst
> b/doc/guides/prog_guide/profile_app.rst
> index 52f85bb9e0..bd6700ef85 100644
> --- a/doc/guides/prog_guide/profile_app.rst
> +++ b/doc/guides/prog_guide/profile_app.rst
> @@ -94,7 +94,16 @@ an ARMv8 machine.
> make
> sudo insmod pmu_el0_cycle_counter.ko
>
> -Please refer to :doc:`../linux_gsg/build_dpdk` for details on compiling DPDK
> with meson.
> +Please refer to :doc:`../linux_gsg/build_dpdk` for generic details on
> compiling DPDK with meson.
> +
> +In order to enable ``PMU`` based ``rte_rdtsc()``, user needs to
> +configure the build with ``-Dc_args='-DRTE_ARM_EAL_RDTSC_USE_PMU'``.
> +
> +Example:
> +
> +.. code-block:: console
> +
> + meson --cross config/arm/arm64_armv8_linux_gcc
> + -Dc_args='-DRTE_ARM_EAL_RDTSC_USE_PMU' build
>
> .. warning::
>
> --
> 2.32.0
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>
next prev parent reply other threads:[~2021-07-12 6:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-11 7:58 jerinj
2021-07-12 6:39 ` Ruifeng Wang [this message]
2021-07-31 16:42 ` Thomas Monjalon
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