From: "Matias Bjørling" <mb@lightnvm.io>
To: "Javier González" <javier@javigon.com>
Cc: Kanchan Joshi <joshi.k@samsung.com>,
axboe@kernel.dk, viro@zeniv.linux.org.uk, bcrl@kvack.org,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-aio@kvack.org, io-uring@vger.kernel.org,
linux-block@vger.kernel.org, selvakuma.s1@samsung.com,
nj.shetty@samsung.com, Damien Le Moal <Damien.LeMoal@wdc.com>,
Keith Busch <keith.busch@wdc.com>, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 0/3] zone-append support in aio and io-uring
Date: Thu, 18 Jun 2020 10:32:00 +0200 [thread overview]
Message-ID: <f9b820af-2b23-7bb4-f651-e6e1b3002ebf@lightnvm.io> (raw)
In-Reply-To: <20200618082740.i4sfoi54aed6sxnk@mpHalley.local>
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.
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.
next prev parent reply other threads:[~2020-06-18 8:32 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 ` javier.gonz@samsung.com
2020-06-18 8:47 ` Damien Le Moal
2020-06-18 9:11 ` javier.gonz@samsung.com
2020-06-19 9:41 ` javier.gonz@samsung.com
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 ` javier.gonz@samsung.com
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 ` javier.gonz@samsung.com
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 [this message]
2020-06-18 8:39 ` Javier González
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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