From: Tariq Toukan <ttoukan.linux@gmail.com>
To: Jesper Dangaard Brouer <jbrouer@redhat.com>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
Jesper Dangaard Brouer <hawk@kernel.org>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
gal@nvidia.com, Dragos Tatulea <dtatulea@nvidia.com>
Cc: brouer@redhat.com, netdev@vger.kernel.org, linux-mm@kvack.org,
Shakeel Butt <shakeelb@google.com>,
Saeed Mahameed <saeed@kernel.org>
Subject: Re: [PATCH v2 24/24] mlx5: Convert to netmem
Date: Mon, 9 Jan 2023 13:46:13 +0200 [thread overview]
Message-ID: <3d2db7f2-9e3c-929c-de41-c3f0011839b8@gmail.com> (raw)
In-Reply-To: <6ebfda57-3a01-7fe2-4a95-65108a02e887@redhat.com>
On 06/01/2023 18:31, Jesper Dangaard Brouer wrote:
>
> To Saeed and Tariq, please review.
>
Adding Dragos, Gal.
Hi Jesper,
Thanks for the ping. I'm on it.
> This reminds me, that IMHO we/nvidia/mellanox should remove the local
> mlx5e_page_cache functionality, as SKBs can now recycle page_pool pages.
> This should simplify the driver and we get rid of the head-of-line
> blocking issue with the local page cache (refcnt elevation tricks).
Totally agree.
Dragos is currently working on this task. This should clean up
significant amount of code, and improve performance. We target this for
the next submission window, to kernel v6.4.
> It might look good in microbencmarks, but my experience from prod
> systems are that this local cache isn't utilized. And I believe we
> should be able to get good/similar microbenchmark with page_pool, which
> will continue to recycle and have no HoL issues for prod use-cases.
>
100%.
Thanks,
Tariq
next prev parent reply other threads:[~2023-01-09 11:46 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-05 21:46 [PATCH v2 00/24] Split netmem from struct page Matthew Wilcox (Oracle)
2023-01-05 21:46 ` [PATCH v2 01/24] netmem: Create new type Matthew Wilcox (Oracle)
2023-01-06 13:07 ` Jesper Dangaard Brouer
2023-01-09 17:20 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 02/24] netmem: Add utility functions Matthew Wilcox (Oracle)
2023-01-06 2:24 ` kernel test robot
2023-01-06 20:35 ` Matthew Wilcox
2023-01-06 13:35 ` Jesper Dangaard Brouer
2023-01-05 21:46 ` [PATCH v2 03/24] page_pool: Add netmem_set_dma_addr() and netmem_get_dma_addr() Matthew Wilcox (Oracle)
2023-01-06 13:43 ` Jesper Dangaard Brouer
2023-01-09 17:30 ` Ilias Apalodimas
2023-01-10 9:17 ` Ilias Apalodimas
2023-01-10 18:16 ` Matthew Wilcox
2023-01-10 18:15 ` Matthew Wilcox
2023-01-05 21:46 ` [PATCH v2 04/24] page_pool: Convert page_pool_release_page() to page_pool_release_netmem() Matthew Wilcox (Oracle)
2023-01-06 13:46 ` Jesper Dangaard Brouer
2023-01-10 9:28 ` Ilias Apalodimas
2023-01-10 18:47 ` Matthew Wilcox
2023-01-11 13:56 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 05/24] page_pool: Start using netmem in allocation path Matthew Wilcox (Oracle)
2023-01-06 2:34 ` kernel test robot
2023-01-06 13:59 ` Jesper Dangaard Brouer
2023-01-06 15:36 ` Matthew Wilcox
2023-01-10 9:30 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 06/24] page_pool: Convert page_pool_return_page() to page_pool_return_netmem() Matthew Wilcox (Oracle)
2023-01-06 14:10 ` Jesper Dangaard Brouer
2023-01-10 9:39 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 07/24] page_pool: Convert __page_pool_put_page() to __page_pool_put_netmem() Matthew Wilcox (Oracle)
2023-01-06 14:14 ` Jesper Dangaard Brouer
2023-01-10 9:47 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 08/24] page_pool: Convert pp_alloc_cache to contain netmem Matthew Wilcox (Oracle)
2023-01-06 14:18 ` Jesper Dangaard Brouer
2023-01-10 9:58 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 09/24] page_pool: Convert page_pool_defrag_page() to page_pool_defrag_netmem() Matthew Wilcox (Oracle)
2023-01-06 14:29 ` Jesper Dangaard Brouer
2023-01-10 10:27 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 10/24] page_pool: Convert page_pool_put_defragged_page() to netmem Matthew Wilcox (Oracle)
2023-01-06 14:32 ` Jesper Dangaard Brouer
2023-01-10 10:36 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 11/24] page_pool: Convert page_pool_empty_ring() to use netmem Matthew Wilcox (Oracle)
2023-01-06 15:22 ` Jesper Dangaard Brouer
2023-01-10 10:38 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 12/24] page_pool: Convert page_pool_alloc_pages() to page_pool_alloc_netmem() Matthew Wilcox (Oracle)
2023-01-06 15:27 ` Jesper Dangaard Brouer
2023-01-10 10:45 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 13/24] page_pool: Convert page_pool_dma_sync_for_device() to take a netmem Matthew Wilcox (Oracle)
2023-01-06 15:28 ` Jesper Dangaard Brouer
2023-01-10 10:47 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 14/24] page_pool: Convert page_pool_recycle_in_cache() to netmem Matthew Wilcox (Oracle)
2023-01-06 15:29 ` Jesper Dangaard Brouer
2023-01-10 10:48 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 15/24] page_pool: Remove page_pool_defrag_page() Matthew Wilcox (Oracle)
2023-01-06 15:29 ` Jesper Dangaard Brouer
2023-01-10 9:47 ` Ilias Apalodimas
2023-01-10 22:00 ` Matthew Wilcox
2023-01-11 13:58 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 16/24] page_pool: Use netmem in page_pool_drain_frag() Matthew Wilcox (Oracle)
2023-01-06 15:30 ` Jesper Dangaard Brouer
2023-01-10 11:00 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 17/24] page_pool: Convert page_pool_return_skb_page() to use netmem Matthew Wilcox (Oracle)
2023-01-06 15:49 ` Jesper Dangaard Brouer
2023-01-06 16:53 ` Matthew Wilcox
2023-01-06 20:16 ` Jesper Dangaard Brouer
2023-01-09 18:36 ` Matthew Wilcox
2023-01-10 10:04 ` Jesper Dangaard Brouer
2023-01-05 21:46 ` [PATCH v2 18/24] page_pool: Convert frag_page to frag_nmem Matthew Wilcox (Oracle)
2023-01-06 15:51 ` Jesper Dangaard Brouer
2023-01-10 11:36 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 19/24] xdp: Convert to netmem Matthew Wilcox (Oracle)
2023-01-06 15:53 ` Jesper Dangaard Brouer
2023-01-10 11:50 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 20/24] mm: Remove page pool members from struct page Matthew Wilcox (Oracle)
2023-01-06 15:56 ` Jesper Dangaard Brouer
2023-01-10 11:51 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 21/24] page_pool: Pass a netmem to init_callback() Matthew Wilcox (Oracle)
2023-01-06 16:02 ` Jesper Dangaard Brouer
2023-01-10 11:32 ` Ilias Apalodimas
2023-01-05 21:46 ` [PATCH v2 22/24] net: Add support for netmem in skb_frag Matthew Wilcox (Oracle)
2023-01-05 21:46 ` [PATCH v2 23/24] mvneta: Convert to netmem Matthew Wilcox (Oracle)
2023-01-05 21:46 ` [PATCH v2 24/24] mlx5: " Matthew Wilcox (Oracle)
2023-01-06 16:31 ` Jesper Dangaard Brouer
2023-01-09 11:46 ` Tariq Toukan [this message]
2023-01-09 12:27 ` Tariq Toukan
2023-01-06 1:20 ` [PATCH v2 00/24] Split netmem from struct page Jesse Brandeburg
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