From: Chaitanya Kulkarni <chaitanyak@nvidia.com>
To: Nikos Tsironis <ntsironis@arrikto.com>
Cc: "linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"dm-devel@redhat.com" <dm-devel@redhat.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Jens Axboe <axboe@kernel.dk>,
"msnitzer@redhat.com >> msnitzer@redhat.com"
<msnitzer@redhat.com>, Bart Van Assche <bvanassche@acm.org>,
"martin.petersen@oracle.com >> Martin K. Petersen"
<martin.petersen@oracle.com>,
"roland@purestorage.com" <roland@purestorage.com>,
"mpatocka@redhat.com" <mpatocka@redhat.com>,
Hannes Reinecke <hare@suse.de>,
"kbus >> Keith Busch" <kbusch@kernel.org>,
Christoph Hellwig <hch@lst.de>,
"Frederick.Knight@netapp.com" <Frederick.Knight@netapp.com>,
"zach.brown@ni.com" <zach.brown@ni.com>,
"osandov@fb.com" <osandov@fb.com>,
"lsf-pc@lists.linux-foundation.org"
<lsf-pc@lists.linux-foundation.org>,
"djwong@kernel.org" <djwong@kernel.org>,
"josef@toxicpanda.com" <josef@toxicpanda.com>,
"clm@fb.com" <clm@fb.com>, "dsterba@suse.com" <dsterba@suse.com>,
"tytso@mit.edu" <tytso@mit.edu>, "jack@suse.com" <jack@suse.com>
Subject: Re: [LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload
Date: Tue, 1 Mar 2022 21:32:23 +0000 [thread overview]
Message-ID: <c4124f39-1ee9-8f34-e731-42315fee15f9@nvidia.com> (raw)
In-Reply-To: <012723a9-2e9c-c638-4944-fa560e1b0df0@arrikto.com>
Nikos,
>> [8] https://kernel.dk/io_uring.pdf
>
> I would like to participate in the discussion too.
>
> The dm-clone target would also benefit from copy offload, as it heavily
> employs dm-kcopyd. I have been exploring redesigning kcopyd in order to
> achieve increased IOPS in dm-clone and dm-snapshot for small copies over
> NVMe devices, but copy offload sounds even more promising, especially
> for larger copies happening in the background (as is the case with
> dm-clone's background hydration).
>
> Thanks,
> Nikos
If you can document your findings here it will be great for me to
add it to the agenda.
-ck
next prev parent reply other threads:[~2022-03-01 21:32 UTC|newest]
Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220127071544uscas1p2f70f4d2509f3ebd574b7ed746d3fa551@uscas1p2.samsung.com>
2022-01-27 7:14 ` [LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload Chaitanya Kulkarni
2022-01-28 19:59 ` Adam Manzanares
2022-01-31 11:49 ` Johannes Thumshirn
2022-01-31 19:03 ` Bart Van Assche
2022-02-01 1:54 ` Luis Chamberlain
2022-02-01 10:21 ` Javier González
2022-02-01 18:31 ` [RFC PATCH 0/3] NVMe copy offload patches Mikulas Patocka
2022-02-01 18:32 ` [RFC PATCH 1/3] block: add copy offload support Mikulas Patocka
2022-02-01 19:18 ` Bart Van Assche
2022-02-03 18:50 ` Mikulas Patocka
2022-02-03 20:11 ` Keith Busch
2022-02-03 22:49 ` Bart Van Assche
2022-02-04 12:09 ` Mikulas Patocka
2022-02-04 13:34 ` Jens Axboe
2022-02-02 16:21 ` Keith Busch
2022-02-02 16:40 ` Mikulas Patocka
2022-02-02 18:40 ` Knight, Frederick
2022-02-01 18:33 ` [RFC PATCH 2/3] nvme: " Mikulas Patocka
2022-02-01 19:18 ` Bart Van Assche
2022-02-01 19:25 ` Mikulas Patocka
2022-02-01 18:33 ` [RFC PATCH 3/3] nvme: add the "debug" host driver Mikulas Patocka
2022-02-02 6:01 ` Adam Manzanares
2022-02-03 16:06 ` Luis Chamberlain
2022-02-03 16:15 ` Christoph Hellwig
2022-02-03 19:34 ` Luis Chamberlain
2022-02-03 19:46 ` Adam Manzanares
2022-02-03 20:57 ` Mikulas Patocka
2022-02-03 22:52 ` Adam Manzanares
2022-02-04 3:00 ` Chaitanya Kulkarni
2022-02-04 3:05 ` Chaitanya Kulkarni
2022-02-02 8:00 ` Chaitanya Kulkarni
2022-02-02 12:38 ` Klaus Jensen
2022-02-03 15:38 ` Luis Chamberlain
2022-02-03 16:52 ` Keith Busch
2022-02-03 19:50 ` Adam Manzanares
2022-02-04 3:12 ` Chaitanya Kulkarni
2022-02-04 6:28 ` Damien Le Moal
2022-02-04 7:58 ` Chaitanya Kulkarni
2022-02-04 8:24 ` Javier González
2022-02-04 9:58 ` Chaitanya Kulkarni
2022-02-04 11:34 ` Javier González
2022-02-04 14:15 ` Hannes Reinecke
2022-02-04 14:24 ` Keith Busch
2022-02-04 16:01 ` Christoph Hellwig
2022-02-04 19:41 ` [RFC PATCH 0/3] NVMe copy offload patches Nitesh Shetty
[not found] ` <CGME20220207141901epcas5p162ec2387815be7a1fd67ce0ab7082119@epcas5p1.samsung.com>
2022-02-07 14:13 ` [PATCH v2 00/10] Add Copy offload support Nitesh Shetty
[not found] ` <CGME20220207141908epcas5p4f270c89fc32434ea8b525fa973098231@epcas5p4.samsung.com>
2022-02-07 14:13 ` [PATCH v2 01/10] block: make bio_map_kern() non static Nitesh Shetty
[not found] ` <CGME20220207141913epcas5p4d41cb549b7cca1ede5c7a66bbd110da0@epcas5p4.samsung.com>
2022-02-07 14:13 ` [PATCH v2 02/10] block: Introduce queue limits for copy-offload support Nitesh Shetty
2022-02-08 7:01 ` Damien Le Moal
2022-02-08 18:43 ` Nitesh Shetty
[not found] ` <CGME20220207141918epcas5p4f9badc0c3f3f0913f091c850d2d3bd81@epcas5p4.samsung.com>
2022-02-07 14:13 ` [PATCH v2 03/10] block: Add copy offload support infrastructure Nitesh Shetty
2022-02-07 22:45 ` kernel test robot
2022-02-07 23:26 ` kernel test robot
2022-02-08 7:21 ` Damien Le Moal
2022-02-09 10:22 ` Nitesh Shetty
2022-02-09 7:48 ` Dan Carpenter
2022-02-09 10:32 ` Nitesh Shetty
[not found] ` <CGME20220207141924epcas5p26ad9cf5de732224f408aded12ed0a577@epcas5p2.samsung.com>
2022-02-07 14:13 ` [PATCH v2 04/10] block: Introduce a new ioctl for copy Nitesh Shetty
2022-02-09 3:39 ` kernel test robot
[not found] ` <CGME20220207141930epcas5p2bcbff65f78ad1dede64648d73ddb3770@epcas5p2.samsung.com>
2022-02-07 14:13 ` [PATCH v2 05/10] block: add emulation " Nitesh Shetty
2022-02-08 3:20 ` kernel test robot
2022-02-16 13:32 ` Mikulas Patocka
2022-02-17 13:18 ` Nitesh Shetty
[not found] ` <CGME20220207141937epcas5p2bd57ae35056c69b3e2f9ee2348d6af19@epcas5p2.samsung.com>
2022-02-07 14:13 ` [PATCH v2 06/10] nvme: add copy support Nitesh Shetty
2022-02-10 7:08 ` kernel test robot
[not found] ` <CGME20220207141942epcas5p4bda894a5833513c9211dcecc7928a951@epcas5p4.samsung.com>
2022-02-07 14:13 ` [PATCH v2 07/10] nvmet: add copy command support for bdev and file ns Nitesh Shetty
2022-02-07 18:10 ` kernel test robot
2022-02-07 20:12 ` kernel test robot
2022-02-10 8:31 ` kernel test robot
2022-02-11 7:52 ` Dan Carpenter
[not found] ` <CGME20220207141948epcas5p4534f6bdc5a1e2e676d7d09c04f8b4a5b@epcas5p4.samsung.com>
2022-02-07 14:13 ` [PATCH v2 08/10] dm: Add support for copy offload Nitesh Shetty
2022-02-16 13:51 ` Mikulas Patocka
2022-02-24 12:42 ` Nitesh Shetty
2022-02-25 9:12 ` Mikulas Patocka
[not found] ` <CGME20220207141953epcas5p32ccc3c0bbe642cea074edefcc32302a5@epcas5p3.samsung.com>
2022-02-07 14:13 ` [PATCH v2 09/10] dm: Enable copy offload for dm-linear target Nitesh Shetty
[not found] ` <CGME20220207141958epcas5p25f1cd06726217696d13c2dfbea010565@epcas5p2.samsung.com>
2022-02-07 14:13 ` [PATCH v2 10/10] dm kcopyd: use copy offload support Nitesh Shetty
2022-02-07 9:57 ` [LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload Nitesh Shetty
2022-02-02 5:57 ` Kanchan Joshi
2022-02-07 10:45 ` David Disseldorp
2022-03-01 17:34 ` Nikos Tsironis
2022-03-01 21:32 ` Chaitanya Kulkarni [this message]
2022-03-03 18:36 ` Nikos Tsironis
2022-03-08 20:48 ` Nikos Tsironis
2022-03-09 8:51 ` Mikulas Patocka
2022-03-09 15:49 ` Nikos Tsironis
[not found] <CGME20230113094723epcas5p2f6f81ca1ad85f4b26829b87f8ec301ce@epcas5p2.samsung.com>
2023-01-13 9:46 ` Nitesh Shetty
2021-05-11 0:15 Chaitanya Kulkarni
2021-05-11 21:15 ` Knight, Frederick
2021-05-12 2:21 ` Bart Van Assche
[not found] ` <CGME20210512071321eucas1p2ca2253e90449108b9f3e4689bf8e0512@eucas1p2.samsung.com>
2021-05-12 7:13 ` Javier González
2021-05-12 7:30 ` Johannes Thumshirn
[not found] ` <CGME20210928191342eucas1p23448dcd51b23495fa67cdc017e77435c@eucas1p2.samsung.com>
2021-09-28 19:13 ` Javier González
2021-09-29 6:44 ` Johannes Thumshirn
2021-09-30 9:43 ` Chaitanya Kulkarni
2021-09-30 9:53 ` Javier González
2021-10-06 10:01 ` Javier González
2021-10-13 8:35 ` Javier González
2021-09-30 16:20 ` Bart Van Assche
2021-10-06 10:05 ` Javier González
2021-10-06 17:33 ` Bart Van Assche
2021-10-08 6:49 ` Javier González
2021-10-29 0:21 ` Chaitanya Kulkarni
2021-10-29 5:51 ` Hannes Reinecke
2021-10-29 8:16 ` Javier González
2021-10-29 16:15 ` Bart Van Assche
2021-11-01 17:54 ` Keith Busch
2021-10-29 8:14 ` Javier González
2021-11-03 19:27 ` Javier González
2021-11-16 13:43 ` Javier González
2021-11-16 17:59 ` Bart Van Assche
2021-11-17 12:53 ` Javier González
2021-11-17 15:52 ` Bart Van Assche
2021-11-19 7:38 ` Javier González
2021-11-19 10:47 ` Kanchan Joshi
2021-11-19 15:51 ` Keith Busch
2021-11-19 16:21 ` Bart Van Assche
2021-11-22 7:39 ` Kanchan Joshi
2021-05-12 15:23 ` Hannes Reinecke
2021-05-12 15:45 ` Himanshu Madhani
2021-05-17 16:39 ` Kanchan Joshi
2021-05-18 0:15 ` Bart Van Assche
2021-06-11 6:03 ` Chaitanya Kulkarni
2021-06-11 15:35 ` Nikos Tsironis
[not found] <CGME20200107181551epcas5p4f47eeafd807c28a26b4024245c4e00ab@epcas5p4.samsung.com>
2020-01-07 18:14 ` Chaitanya Kulkarni
2020-01-08 10:17 ` Javier González
2020-01-09 0:51 ` Logan Gunthorpe
2020-01-09 3:18 ` Bart Van Assche
2020-01-09 4:01 ` Chaitanya Kulkarni
2020-01-09 5:56 ` Damien Le Moal
2020-01-10 5:33 ` Martin K. Petersen
2020-01-24 14:23 ` Nikos Tsironis
2020-02-13 5:11 ` joshi.k
2020-02-13 13:09 ` Knight, Frederick
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