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From: Matthew Wilcox <willy@infradead.org>
To: Shyam Prasad N <nspmangalore@gmail.com>
Cc: Steve French <smfrench@gmail.com>,
	CIFS <linux-cifs@vger.kernel.org>,
	Jeff Layton <jlayton@redhat.com>,
	David Howells <dhowells@redhat.com>
Subject: Re: [PATCH] smb3: add rasize mount parameter to improve performance of readahead
Date: Mon, 26 Apr 2021 12:54:57 +0100	[thread overview]
Message-ID: <20210426115457.GJ235567@casper.infradead.org> (raw)
In-Reply-To: <CANT5p=qVq5mD2jfvt1Ym24hQF9M-aj1v1GT2q+_41p1OTESTKw@mail.gmail.com>

On Mon, Apr 26, 2021 at 10:22:27AM +0530, Shyam Prasad N wrote:
> Agree with this. Was experimenting on the similar lines on Friday.
> Does show good improvements with sequential workload.
> For random read/write workload, the user can use the default value.

For a random access workload, Linux's readahead shouldn't kick in.
Do you see a slowdown when using this patch with a random I/O workload?


  reply	other threads:[~2021-04-26 11:55 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-24 19:27 [PATCH] smb3: add rasize mount parameter to improve performance of readahead Steve French
2021-04-24 20:08 ` Steve French
2021-04-25  2:09 ` Matthew Wilcox
2021-04-25  2:36   ` Steve French
2021-04-25 16:50     ` Steve French
2021-04-26  4:52       ` Shyam Prasad N
2021-04-26 11:54         ` Matthew Wilcox [this message]
2021-04-27  2:23           ` Steve French
2021-04-30 10:49           ` Shyam Prasad N
2021-04-30 11:59             ` Matthew Wilcox
2021-04-30 12:53               ` Shyam Prasad N
2021-04-30 19:22               ` Steve French
2021-05-01 18:35                 ` Matthew Wilcox
2021-05-01 18:47                   ` Steve French
2021-05-01 18:50                     ` Steve French

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