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From: Thomas Monjalon <thomas@monjalon.net>
To: Elena Agostini <eagostini@nvidia.com>
Cc: dev@dpdk.org
Subject: Re: [PATCH v1] gpudev: remove unnecessary rte_gpu_wmb
Date: Fri, 26 Nov 2021 12:29:10 +0100
Message-ID: <29782478.duVJ8Zo7tk@thomas>
In-Reply-To: <20211125224054.26157-1-eagostini@nvidia.com>
References: <20211125224054.26157-1-eagostini@nvidia.com>
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25/11/2021 23:40, eagostini@nvidia.com:
> From: Elena Agostini <eagostini@nvidia.com>
>
> Remove unnecessary rte_gpu_wmb from rte_gpu_comm_populate_list_pkts.
> It causes a performance degradation in case of NVIDIA GPU V100.
>
> This change doesn't affect any functionality as the status resides
> in CPU registered memory.
>
> Fixes: c7ebd65c1372 ("gpudev: add communication list")
>
> Signed-off-by: Elena Agostini <eagostini@nvidia.com>
Applied, thanks.