Bo Liu
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b4a29efc51
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erofs: support DEFLATE decompression by using Intel QAT
This patch introduces the use of the Intel QAT to offload EROFS data
decompression, aiming to improve the decompression performance.
A 285MiB dataset is used with the following command to create EROFS
images with different cluster sizes:
$ mkfs.erofs -zdeflate,level=9 -C{4096,16384,65536,131072,262144}
Fio is used to test the following read patterns:
$ fio -filename=testfile -bs=4k -rw=read -name=job1
$ fio -filename=testfile -bs=4k -rw=randread -name=job1
$ fio -filename=testfile -bs=4k -rw=randread --io_size=14m -name=job1
Here are some performance numbers for reference:
Processors: Intel(R) Xeon(R) 6766E (144 cores)
Memory: 512 GiB
|-----------------------------------------------------------------------------|
| | Cluster size | sequential read | randread | small randread(5%) |
|-----------|--------------|-----------------|-----------|--------------------|
| Intel QAT | 4096 | 538 MiB/s | 112 MiB/s | 20.76 MiB/s |
| Intel QAT | 16384 | 699 MiB/s | 158 MiB/s | 21.02 MiB/s |
| Intel QAT | 65536 | 917 MiB/s | 278 MiB/s | 20.90 MiB/s |
| Intel QAT | 131072 | 1056 MiB/s | 351 MiB/s | 23.36 MiB/s |
| Intel QAT | 262144 | 1145 MiB/s | 431 MiB/s | 26.66 MiB/s |
| deflate | 4096 | 499 MiB/s | 108 MiB/s | 21.50 MiB/s |
| deflate | 16384 | 422 MiB/s | 125 MiB/s | 18.94 MiB/s |
| deflate | 65536 | 452 MiB/s | 159 MiB/s | 13.02 MiB/s |
| deflate | 131072 | 452 MiB/s | 177 MiB/s | 11.44 MiB/s |
| deflate | 262144 | 466 MiB/s | 194 MiB/s | 10.60 MiB/s |
Signed-off-by: Bo Liu <liubo03@inspur.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250522094931.28956-1-liubo03@inspur.com
[ Gao Xiang: refine the commit message. ]
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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2025-05-25 15:27:40 +08:00 |
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Chunhai Guo
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db80b98305
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erofs: add sysfs node to drop internal caches
Add a sysfs node to drop compression-related caches, currently used to
drop in-memory pclusters and cached compressed folios.
Signed-off-by: Chunhai Guo <guochunhai@vivo.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20241113041148.749129-1-guochunhai@vivo.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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2024-11-18 18:50:13 +08:00 |
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Yue Hu
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6967f6cbca
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Documentation/ABI: sysfs-fs-erofs: update supported features
Add missing feaures for sysfs-fs-erofs feature doc.
Signed-off-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20230209051128.10571-1-zbestahu@gmail.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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2023-02-15 08:11:27 +08:00 |
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Hans de Goede
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8b1ac84dcf
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Documentation/ABI: sysfs-fs-erofs: Fix Sphinx errors
Fix the following warnings from "make htmldocs":
Documentation/ABI/testing/sysfs-fs-erofs:10:
ERROR: Unexpected indentation.
WARNING: Block quote ends without a blank line; unexpected unindent.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220324165918.22005-4-hdegoede@redhat.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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2022-04-15 23:51:54 +08:00 |
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Huang Jianan
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40452ffca3
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erofs: add sysfs node to control sync decompression strategy
Although readpage is a synchronous path, there will be no additional
kworker scheduling overhead in non-atomic contexts together with
dm-verity.
Let's add a sysfs node to disable sync decompression as an option.
Link: https://lore.kernel.org/r/20211206143552.8384-1-huangjianan@oppo.com
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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2021-12-08 09:42:18 +08:00 |
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Huang Jianan
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168e9a7620
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erofs: add sysfs interface
Add sysfs interface to configure erofs related parameters later.
Link: https://lore.kernel.org/r/20211201145436.4357-1-huangjianan@oppo.com
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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2021-12-08 09:40:37 +08:00 |
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