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From: 刘硕然 <liushuoran@jd.com>
To: Miklos Szeredi <miklos@szeredi.hu>,
	Constantine Shulyupin <const@makelinux.com>
Cc: "open list:FUSE: FILESYSTEM IN USERSPACE"
	<linux-fsdevel@vger.kernel.org>, Jonathan Corbet <corbet@lwn.net>,
	"mitsuo.hayasaka.hu@hitachi.com" <mitsuo.hayasaka.hu@hitachi.com>,
	Amir Goldstein <amir73il@gmail.com>
Subject: 答复: [PATCH v4] fuse: add max_pages option
Date: Wed, 26 Sep 2018 09:39:56 +0000	[thread overview]
Message-ID: <ef5fb36737924682b34277f80203300f@jd.com> (raw)
In-Reply-To: <CAJfpeguqOnuZOQMNb4U3tZt=+tFumsd3nLWrEOh9fCpDgRQ7tQ@mail.gmail.com>

Hi Constantine,

I haven't tested the patch yet. But after reviewing the patch, I don't see anything related to BDI_CAP_STRICTLIMIT. So would you please explain a little bit more? Thanks.

PS: I did try increasing FUSE_MAX_PAGES_PER_REQ, but it seemed not helping in my scenario(writeback cache enabled, 4K writes, total write size is not very large).

Shuoran Liu

-----邮件原件-----
发件人: Miklos Szeredi [mailto:miklos@szeredi.hu] 
发送时间: 2018年9月26日 17:20
收件人: Constantine Shulyupin <const@makelinux.com>
抄送: open list:FUSE: FILESYSTEM IN USERSPACE <linux-fsdevel@vger.kernel.org>; Jonathan Corbet <corbet@lwn.net>; 刘硕然 <liushuoran@jd.com>; mitsuo.hayasaka.hu@hitachi.com; Amir Goldstein <amir73il@gmail.com>
主题: Re: [PATCH v4] fuse: add max_pages option

On Wed, Sep 26, 2018 at 10:54 AM, Constantine Shulyupin <const@makelinux.com> wrote:
> Hi Miklos,
>
> Passed 20 days since the previous messages, so would you like to 
> review the patch?

Yes.

> I've added reproduction and measurement details up your request.
> Also this patch can help resolve BDI_CAP_STRICTLIMIT performance issue 
> reported recently by liushuoran@jd.com.

Do you have feedback from <liushuoran@jd.com> that this patch helps?

Thanks,
Miklos

  reply	other threads:[~2018-09-26 15:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-06 12:37 Constantine Shulyupin
2018-09-26  8:54 ` Constantine Shulyupin
2018-09-26  9:19   ` Miklos Szeredi
2018-09-26  9:39     ` 刘硕然 [this message]
2018-09-26 10:06       ` Constantine Shulyupin
2018-09-26 10:39         ` 答复: " 刘硕然
2018-10-01  9:18           ` Miklos Szeredi
2018-10-01  9:16   ` Miklos Szeredi

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