From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CE624192D66 for ; Thu, 19 Dec 2024 18:12:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734631973; cv=none; b=Tt2Zcrqy6jNrDFB2SUyIVLJU4dgzwpXqF6ku9MvWWXVmSudE8yit6M/+yKBiDV9kGPJIYbSEe7Z5QxkJN4Mxs6dkUpXBx4q2ynJ6NKOLU5orJef9elbw2LlKEIJuQuZA8kp1j2mWhrKVUOKwNPGqCCGFJdkJar1d0ZGSczX/wPU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734631973; c=relaxed/simple; bh=mI+XdmR2E+ktvV04yOqgMW0HTSUDAXYrWMmyFEkUW/A=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=lm2u/dahCJp11zGGpO8QDors8jaBHYvJol/VolRoQ53n6w5rTABLROXykcuLWfL8Z85xYMgy++cCbT7CNO9+gXJgWjdP2QeoOYIixMiBSfc9i/pMnad68bgribKHg2A4sgNzm8jpAbMqFFln8nHzspH6AHeko7VQN05VkLJq1kc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=boZLXWh0; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="boZLXWh0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8D2AFC4CED0; Thu, 19 Dec 2024 18:12:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734631973; bh=mI+XdmR2E+ktvV04yOqgMW0HTSUDAXYrWMmyFEkUW/A=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=boZLXWh0vivx479Ov2OlmktOdMvlvQvIhvBE3JL4Qe4fSica08hs/F4N84zzhYaFe 2ib77K69J+QipOZ+DR1TMNwpmoF7BHnYuyZxjmTvCVXSlwrDOnu28KoYihtQKCpKV8 cfSxCry6t7dti9qFTChzqNKp5pbmrQTqpADama2OBH+m9Jpi4b/dNSvY02KLgRoKjN 6Vv9fjvZjzVU4Sm09r9BEUwx6Y8bhHppoz2L3jqlxdAvrEI4KpujWaP4E2O/ABN8Ic OvGAur12cEFXap9FCWv9sXAHDMMnmO4wC/x7MAImObQlfkkGVrsWkOptOaTe2zZOxp V5XleJPOGtbjw== Message-ID: <92fab77a9f6112b3661e2a2fbc1f57fed8476236.camel@kernel.org> Subject: Re: [PATCH v3 00/12] fuse: support large folios From: Jeff Layton To: Joanne Koong , miklos@szeredi.hu, linux-fsdevel@vger.kernel.org Cc: josef@toxicpanda.com, bernd.schubert@fastmail.fm, willy@infradead.org, jefflexu@linux.alibaba.com, shakeel.butt@linux.dev, kernel-team@meta.com Date: Thu, 19 Dec 2024 13:12:51 -0500 In-Reply-To: <20241213221818.322371-1-joannelkoong@gmail.com> References: <20241213221818.322371-1-joannelkoong@gmail.com> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv egyjnSsFt7EGoDjdKqr1TS9syJYFjagYtvWk/UfHlW09X+jOh4vYtfX7iYSx/NfqV3W1D7EDi0PqV 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Fri, 2024-12-13 at 14:18 -0800, Joanne Koong wrote: > This patchset adds support for folios larger than one page size in FUSE. >=20 > This patchset is rebased on top of the (unmerged) patchset that removes t= emp > folios in writeback [1]. This patchset was tested by running it through f= stests > on passthrough_hp. >=20 > Please note that writes are still effectively one page size. Larger write= s can > be enabled by setting the order on the fgp flag passed in to __filemap_ge= t_folio() > but benchmarks show this significantly degrades performance. More investi= gation > needs to be done into this. As such, buffered writes will be optimized in= a > future patchset. >=20 > Benchmarks show roughly a ~45% improvement in read throughput. >=20 > Benchmark setup: >=20 > -- Set up server -- > ./libfuse/build/example/passthrough_hp --bypass-rw=3D1 ~/libfuse > ~/mounts/fuse/ --nopassthrough > (using libfuse patched with https://github.com/libfuse/libfuse/pull/807) >=20 > -- Run fio -- > fio --name=3Dread --ioengine=3Dsync --rw=3Dread --bs=3D1M --size=3D1G > --numjobs=3D2 --ramp_time=3D30 --group_reporting=3D1 > --directory=3Dmounts/fuse/ >=20 > Machine 1: > No large folios: ~4400 MiB/s > Large folios: ~7100 MiB/s >=20 > Machine 2: > No large folios: ~3700 MiB/s > Large folios: ~6400 MiB/s >=20 >=20 > [1] https://lore.kernel.org/linux-fsdevel/20241122232359.429647-1-joannel= koong@gmail.com/ >=20 > Changelog: > v2: https://lore.kernel.org/linux-fsdevel/20241125220537.3663725-1-joanne= lkoong@gmail.com/ > v2 -> v3: > * Fix direct io parsing to check each extracted page instead of assuming = all > pages in a large folio will be used (Matthew) >=20 > v1: https://lore.kernel.org/linux-fsdevel/20241109001258.2216604-1-joanne= lkoong@gmail.com/ > v1 -> v2: > * Change naming from "non-writeback write" to "writethrough write" > * Fix deadlock for writethrough writes by calling fault_in_iov_iter_reada= ble() > * first > before __filemap_get_folio() (Josef) > * For readahead, retain original folio_size() for descs.length (Josef) > * Use folio_zero_range() api in fuse_copy_folio() (Josef) > * Add Josef's reviewed-bys >=20 > Joanne Koong (12): > fuse: support copying large folios > fuse: support large folios for retrieves > fuse: refactor fuse_fill_write_pages() > fuse: support large folios for writethrough writes > fuse: support large folios for folio reads > fuse: support large folios for symlinks > fuse: support large folios for stores > fuse: support large folios for queued writes > fuse: support large folios for readahead > fuse: optimize direct io large folios processing > fuse: support large folios for writeback > fuse: enable large folios >=20 > fs/fuse/dev.c | 128 ++++++++++++++++++++++--------------------- > fs/fuse/dir.c | 8 +-- > fs/fuse/file.c | 144 +++++++++++++++++++++++++++++++++---------------- > 3 files changed, 166 insertions(+), 114 deletions(-) >=20 Nice work, Joanne! Reviewed-by: Jeff Layton