mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Gao Xiang <hsiangkao@linux.alibaba.com>
To: Bo Liu <liubo03@inspur.com>, xiang@kernel.org, chao@kernel.org
Cc: linux-erofs@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9] erofs: support deflate decompress by using Intel QAT
Date: Thu, 22 May 2025 17:52:32 +0800	[thread overview]
Message-ID: <2f0e05c0-fe6b-4e84-9ef5-c33ecc43d81c@linux.alibaba.com> (raw)
In-Reply-To: <20250522094931.28956-1-liubo03@inspur.com>



On 2025/5/22 17:49, Bo Liu wrote:
> This patch introdueces the use of the Intel QAT to decompress compressed
> data in the EROFS filesystem, aiming to improve the decompression speed
> of compressed datea.
> 
> We created a 285MiB compressed file and then used the following command to
> create EROFS images with different cluster size.
>       # mkfs.erofs -zdeflate,level=9 -C16384
> 
> fio command was used to test random read and small random read(~5%) and
> sequential read performance.
>       # 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 core)
> Memory:     521 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>

Thanks,
Gao Xiang


  reply	other threads:[~2025-05-22  9:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-22  9:49 Bo Liu
2025-05-22  9:52 ` Gao Xiang [this message]
2025-05-22 13:57   ` Gao Xiang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=2f0e05c0-fe6b-4e84-9ef5-c33ecc43d81c@linux.alibaba.com \
    --to=hsiangkao@linux.alibaba.com \
    --cc=chao@kernel.org \
    --cc=linux-erofs@lists.ozlabs.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=liubo03@inspur.com \
    --cc=xiang@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®