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
next prev parent 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
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