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From: Bart Van Assche <bvanassche@acm.org>
To: Matthew Wilcox <willy@infradead.org>
Cc: Ric Wheeler <ricwheeler@gmail.com>,
	lsf-pc@lists.linux-foundation.org,
	Linux FS Devel <linux-fsdevel@vger.kernel.org>,
	linux-block@vger.kernel.org
Subject: Re: [LSF/MM/BPF TOPIC] durability vs performance for flash devices (especially embedded!)
Date: Wed, 9 Jun 2021 11:47:20 -0700	[thread overview]
Message-ID: <e9eaf87d-5c04-8974-4f0f-0fc9bac9a3b1@acm.org> (raw)
In-Reply-To: <YMEItMNXG2bHgJE+@casper.infradead.org>

On 6/9/21 11:30 AM, Matthew Wilcox wrote:
> maybe you should read the paper.
> 
> " Thiscomparison demonstrates that using F2FS, a flash-friendly file
> sys-tem, does not mitigate the wear-out problem, except inasmuch asit
> inadvertently rate limitsallI/O to the device"

It seems like my email was not clear enough? What I tried to make clear
is that I think that there is no way to solve the flash wear issue with
the traditional block interface. I think that F2FS in combination with
the zone interface is an effective solution.

What is also relevant in this context is that the "Flash drive lifespan
is a problem" paper was published in 2017. I think that the first
commercial SSDs with a zone interface became available at a later time
(summer of 2020?).

Bart.

  reply	other threads:[~2021-06-09 18:47 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-09 10:53 Ric Wheeler
2021-06-09 18:05 ` Bart Van Assche
2021-06-09 18:30   ` Matthew Wilcox
2021-06-09 18:47     ` Bart Van Assche [this message]
2021-06-10  0:16       ` Damien Le Moal
2021-06-10  1:11         ` Ric Wheeler
2021-06-10  1:20       ` Ric Wheeler
2021-06-10 11:07         ` Tim Walker
2021-06-10 16:38           ` Keith Busch
     [not found]       ` <CAOtxgyeRf=+grEoHxVLEaSM=Yfx4KrSG5q96SmztpoWfP=QrDg@mail.gmail.com>
2021-06-10 16:22         ` Ric Wheeler
2021-06-10 17:06           ` Matthew Wilcox
2021-06-10 17:25             ` Ric Wheeler
2021-06-10 17:57           ` Viacheslav Dubeyko
2021-06-13 20:41 ` [LSF/MM/BPF TOPIC] SSDFS: LFS file system without GC operations + NAND flash devices lifetime prolongation Viacheslav Dubeyko

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