From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Cc: dev@dpdk.org, jianbo.liu@linaro.org, viktorin@rehivetech.com
Subject: Re: [dpdk-dev] [PATCH] doc: arm64: document DPDK application profiling methods
Date: Tue, 04 Oct 2016 14:40:47 +0200 [thread overview]
Message-ID: <1570506.0gxVEm9dQ5@xps13> (raw)
In-Reply-To: <1475577630-14318-1-git-send-email-jerin.jacob@caviumnetworks.com>
Thanks for providing a patch so quickly :)
2016-10-04 16:10, Jerin Jacob:
> +The PMU based scheme useful for high accuracy performance profiling.
A verb is missing.
> +Find below the example steps to configure the PMU based cycle counter on an
> +armv8 machine.
> +
> +.. code-block:: console
> +
> + git clone https://github.com/jerinjacobk/armv8_pmu_cycle_counter_el0
> + cd armv8_pmu_cycle_counter_el0
> + make
> + sudo insmod pmu_el0_cycle_counter.ko
> + cd $DPDK_DIR
> + make config T=arm64-armv8a-linuxapp-gcc
> + echo "CONFIG_RTE_ARM_EAL_RDTSC_USE_PMU=y" >> build/.config
> + make
What about the ARM 32 code that Jan is using?
> +.. warning::
> +
> + This method can not be used in production systems as this may alter PMU
> + state used by standard Linux user space tool like perf.
More details please?
next prev parent reply other threads:[~2016-10-04 12:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-04 10:40 Jerin Jacob
2016-10-04 12:40 ` Thomas Monjalon [this message]
2016-10-04 12:45 ` Jan Viktorin
2016-10-05 8:43 ` [dpdk-dev] [PATCH v2] " Jerin Jacob
2016-10-26 20:07 ` Thomas Monjalon
2016-11-03 12:30 ` Mcnamara, John
2016-11-04 14:00 ` Mcnamara, John
2016-11-08 3:32 ` [dpdk-dev] [PATCH v3] " Jerin Jacob
2016-11-08 5:57 ` Jianbo Liu
2016-11-10 23:41 ` Thomas Monjalon
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