public inbox for [email protected]
 help / color / mirror / Atom feed
From: "Javier González" <[email protected]>
To: "Matias Bjørling" <[email protected]>
Cc: Kanchan Joshi <[email protected]>,
	[email protected], [email protected], [email protected],
	[email protected], [email protected],
	[email protected], [email protected],
	[email protected], [email protected],
	[email protected], Damien Le Moal <[email protected]>,
	Keith Busch <[email protected]>, Christoph Hellwig <[email protected]>
Subject: Re: [PATCH 0/3] zone-append support in aio and io-uring
Date: Thu, 18 Jun 2020 10:39:40 +0200	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

On 18.06.2020 10:32, Matias Bjørling wrote:
>On 18/06/2020 10.27, Javier González wrote:
>>On 18.06.2020 10:04, Matias Bjørling wrote:
>>>On 17/06/2020 19.23, Kanchan Joshi wrote:
>>>>This patchset enables issuing zone-append using aio and io-uring 
>>>>direct-io interface.
>>>>
>>>>For aio, this introduces opcode IOCB_CMD_ZONE_APPEND. 
>>>>Application uses start LBA
>>>>of the zone to issue append. On completion 'res2' field is used 
>>>>to return
>>>>zone-relative offset.
>>>>
>>>>For io-uring, this introduces three opcodes: 
>>>>IORING_OP_ZONE_APPEND/APPENDV/APPENDV_FIXED.
>>>>Since io_uring does not have aio-like res2, cqe->flags are 
>>>>repurposed to return zone-relative offset
>>>
>>>Please provide a pointers to applications that are updated and 
>>>ready to take advantage of zone append.
>>
>>Good point. We are posting a RFC with fio support for append. We wanted
>>to start the conversation here before.
>>
>>We can post a fork for improve the reviews in V2.
>
>Christoph's response points that it is not exactly clear how this 
>matches with the POSIX API.

Yes. We will address this.
>
>fio support is great - but I was thinking along the lines of 
>applications that not only benchmark performance. fio should be part 
>of the supported applications, but should not be the sole reason the 
>API is added.

Agree. It is a process with different steps. We definitely want to have
the right kernel interface before pushing any changes to libraries and /
or applications. These will come as the interface becomes more stable.

To start with xNVMe will be leveraging this new path. A number of
customers are leveraging the xNVMe API for their applications already.

Thanks,
Javier


  reply	other threads:[~2020-06-18  8:39 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20200617172653epcas5p488de50090415eb802e62acc0e23d8812@epcas5p4.samsung.com>
2020-06-17 17:23 ` [PATCH 0/3] zone-append support in aio and io-uring Kanchan Joshi
     [not found]   ` <CGME20200617172702epcas5p4dbf4729d31d9a85ab1d261d04f238e61@epcas5p4.samsung.com>
2020-06-17 17:23     ` [PATCH 1/3] fs,block: Introduce IOCB_ZONE_APPEND and direct-io handling Kanchan Joshi
2020-06-17 19:02       ` Pavel Begunkov
2020-06-18  7:16       ` Damien Le Moal
2020-06-18 18:35         ` Kanchan Joshi
     [not found]   ` <CGME20200617172706epcas5p4dcbc164063f58bad95b211b9d6dfbfa9@epcas5p4.samsung.com>
2020-06-17 17:23     ` [PATCH 2/3] aio: add support for zone-append Kanchan Joshi
2020-06-18  7:33       ` Damien Le Moal
     [not found]   ` <CGME20200617172713epcas5p352f2907a12bd4ee3c97be1c7d8e1569e@epcas5p3.samsung.com>
2020-06-17 17:23     ` [PATCH 3/3] io_uring: " Kanchan Joshi
2020-06-17 18:55       ` Pavel Begunkov
2020-06-18  7:39       ` Damien Le Moal
2020-06-18  8:35         ` [email protected]
2020-06-18  8:47           ` Damien Le Moal
2020-06-18  9:11             ` [email protected]
2020-06-19  9:41               ` [email protected]
2020-06-19 11:15                 ` Matias Bjørling
2020-06-19 14:18                   ` Jens Axboe
2020-06-19 15:14                     ` Matias Bjørling
2020-06-19 15:20                       ` Jens Axboe
2020-06-19 15:40                         ` Matias Bjørling
2020-06-19 15:44                           ` Jens Axboe
2020-06-21 18:55                             ` [email protected]
2020-06-19 14:15                 ` Jens Axboe
2020-06-19 14:59                   ` Pavel Begunkov
2020-06-19 15:02                     ` Jens Axboe
2020-06-21 18:52                       ` [email protected]
2020-06-17 17:42   ` [PATCH 0/3] zone-append support in aio and io-uring Matthew Wilcox
2020-06-18  6:56   ` Christoph Hellwig
2020-06-18  8:29     ` Javier González
2020-06-18 17:52     ` Kanchan Joshi
2020-06-19  3:08       ` Damien Le Moal
2020-06-19  7:56       ` Christoph Hellwig
2020-06-18  8:04   ` Matias Bjørling
2020-06-18  8:27     ` Javier González
2020-06-18  8:32       ` Matias Bjørling
2020-06-18  8:39         ` Javier González [this message]
2020-06-18  8:46           ` Matias Bjørling
2020-06-18 14:16     ` Christoph Hellwig
2020-06-18 19:21     ` Kanchan Joshi
2020-06-18 20:04       ` Matias Bjørling
2020-06-19  1:03         ` Damien Le Moal

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 \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    /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