From: Bart Van Assche <bvanassche@acm.org>
To: Matthew Wilcox <willy@infradead.org>
Cc: Niklas Cassel <Niklas.Cassel@wdc.com>,
Jens Axboe <axboe@kernel.dk>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 00/13] Pass data temperature information to zoned UFS devices
Date: Thu, 21 Sep 2023 12:39:00 -0700 [thread overview]
Message-ID: <4cacae64-6a11-41ab-9bec-f8915da00106@acm.org> (raw)
In-Reply-To: <ZQyZEqXJymyFWlKV@casper.infradead.org>
On 9/21/23 12:27, Matthew Wilcox wrote:
> On Thu, Sep 21, 2023 at 07:27:08AM -0700, Bart Van Assche wrote:
>> On 9/21/23 00:46, Niklas Cassel wrote:
>>> Should NVMe streams be brought back? Yes? No?
>>
>> From commit 561593a048d7 ("Merge tag 'for-5.18/write-streams-2022-03-18'
>> of git://git.kernel.dk/linux-block"): "This removes the write streams
>> support in NVMe. No vendor ever really shipped working support for this,
>> and they are not interested in supporting it."
>
> It sounds like UFS is at the same stage that NVMe got to -- standard
> exists, no vendor has committed to actually shipping it. Isn't bringing
> it back a little premature?
Hi Matthew,
That's a misunderstanding. UFS vendors support interpreting the SCSI
GROUP NUMBER as a data temperature since many years, probably since more
than ten years. Additionally, for multiple UFS vendors having the data
temperature available is important for achieving good performance. This
message shows how UFS vendors were using that information before write
hint support was removed:
https://lore.kernel.org/linux-block/PH0PR08MB7889642784B2E1FC1799A828DB0B9@PH0PR08MB7889.namprd08.prod.outlook.com/
This patch series implements support for passing data temperature
information from F2FS to UFS devices in a standards-compliant way.
Thanks,
Bart.
next prev parent reply other threads:[~2023-09-21 19:40 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-20 19:14 [PATCH 00/13] Pass data temperature information to zoned UFS devices Bart Van Assche
2023-09-20 19:14 ` [PATCH 01/13] fs/f2fs: Restore the whint_mode mount option Bart Van Assche
2023-10-02 10:32 ` Avri Altman
2023-10-03 19:33 ` Bean Huo
2023-09-20 19:14 ` [PATCH 02/13] fs: Restore support for F_GET_FILE_RW_HINT and F_SET_FILE_RW_HINT Bart Van Assche
2023-10-02 10:35 ` Avri Altman
2023-10-03 19:42 ` Bean Huo
2023-09-20 19:14 ` [PATCH 03/13] fs: Restore kiocb.ki_hint Bart Van Assche
2023-10-02 10:45 ` Avri Altman
2023-10-02 16:39 ` Bart Van Assche
2023-09-20 19:14 ` [PATCH 04/13] block: Restore write hint support Bart Van Assche
2023-10-02 11:23 ` Avri Altman
2023-10-02 17:02 ` Bart Van Assche
2023-10-02 18:08 ` Avri Altman
2023-10-03 19:52 ` Bean Huo
2023-09-20 19:14 ` [PATCH 05/13] scsi: core: Query the Block Limits Extension VPD page Bart Van Assche
2023-10-02 11:29 ` Avri Altman
2023-09-20 19:14 ` [PATCH 06/13] scsi_proto: Add struct io_group_descriptor Bart Van Assche
2023-10-02 11:41 ` Avri Altman
2023-10-02 17:16 ` Bart Van Assche
2023-10-02 18:16 ` Avri Altman
2023-09-20 19:14 ` [PATCH 07/13] sd: Translate data lifetime information Bart Van Assche
2023-10-02 13:11 ` Avri Altman
2023-10-02 17:42 ` Bart Van Assche
2023-10-03 5:48 ` Avri Altman
2023-10-03 16:58 ` Bart Van Assche
2023-10-03 16:59 ` Bart Van Assche
2023-09-20 19:14 ` [PATCH 08/13] scsi_debug: Reduce code duplication Bart Van Assche
2023-10-03 6:49 ` Avri Altman
2023-09-20 19:14 ` [PATCH 09/13] scsi_debug: Support the block limits extension VPD page Bart Van Assche
2023-09-20 19:14 ` [PATCH 10/13] scsi_debug: Rework page code error handling Bart Van Assche
2023-09-20 19:14 ` [PATCH 11/13] scsi_debug: Rework subpage " Bart Van Assche
2023-09-20 19:14 ` [PATCH 12/13] scsi_debug: Implement the IO Advice Hints Grouping mode page Bart Van Assche
2023-09-20 19:14 ` [PATCH 13/13] scsi_debug: Maintain write statistics per group number Bart Van Assche
2023-09-20 19:28 ` [PATCH 00/13] Pass data temperature information to zoned UFS devices Matthew Wilcox
2023-09-20 20:46 ` Bart Van Assche
2023-09-21 7:46 ` Niklas Cassel
2023-09-21 14:27 ` Bart Van Assche
2023-09-21 15:34 ` Niklas Cassel
2023-09-21 17:00 ` Bart Van Assche
2023-09-21 19:27 ` Matthew Wilcox
2023-09-21 19:39 ` Bart Van Assche [this message]
2023-09-21 19:46 ` Matthew Wilcox
2023-09-21 20:11 ` Bart Van Assche
2023-09-21 20:47 ` Jaegeuk Kim
2023-09-27 19:14 ` Martin K. Petersen
2023-09-27 20:49 ` Bart Van Assche
2023-10-02 11:38 ` Niklas Cassel
2023-10-02 11:53 ` Niklas Cassel
2023-10-02 16:33 ` Bart Van Assche
2023-10-02 19:19 ` Niklas Cassel
2023-10-02 17:20 ` Bart Van Assche
2023-10-03 1:40 ` Martin K. Petersen
2023-10-03 17:26 ` Bart Van Assche
2023-10-03 18:45 ` Niklas Cassel
2023-10-04 3:17 ` Martin K. Petersen
[not found] ` <CGME20230920191557epcas2p34a114957acf221c0d8f60acbb3107c77@epcms2p6>
2023-10-05 11:41 ` [PATCH 01/13] fs/f2fs: Restore the whint_mode mount option Daejun Park
[not found] ` <CGME20230920191549epcas2p35174687f1bebe87c42a658fa6aa57bff@epcms2p7>
2023-10-05 11:43 ` [PATCH 02/13] fs: Restore support for F_GET_FILE_RW_HINT and F_SET_FILE_RW_HINT Daejun Park
[not found] ` <CGME20230920191556epcas2p39b150e6715248b625588a50b333e82e2@epcms2p1>
2023-10-05 11:46 ` [PATCH 04/13] block: Restore write hint support Daejun Park
[not found] ` <CGME20230920191816epcas2p1b30d19aa41e51ffaf7c95f9100ee6311@epcms2p3>
2023-10-05 11:58 ` [PATCH 05/13] scsi: core: Query the Block Limits Extension VPD page Daejun Park
[not found] ` <CGME20230920191554epcas2p2280a25d6b2a7fa81563bd6cf1e75549d@epcms2p8>
2023-10-05 11:59 ` [PATCH 06/13] scsi_proto: Add struct io_group_descriptor Daejun Park
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