From: Pankaj Raghav <p.raghav@samsung.com>
To: Chaitanya Kulkarni <chaitanyak@nvidia.com>
Cc: "snitzer@kernel.org" <snitzer@kernel.org>,
"matias.bjorling@wdc.com" <matias.bjorling@wdc.com>,
"Johannes.Thumshirn@wdc.com" <Johannes.Thumshirn@wdc.com>,
"gost.dev@samsung.com" <gost.dev@samsung.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"hare@suse.de" <hare@suse.de>, "hch@lst.de" <hch@lst.de>,
"axboe@kernel.dk" <axboe@kernel.dk>,
"damien.lemoal@opensource.wdc.com"
<damien.lemoal@opensource.wdc.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"pankydev8@gmail.com" <pankydev8@gmail.com>,
"bvanassche@acm.org" <bvanassche@acm.org>,
"jaegeuk@kernel.org" <jaegeuk@kernel.org>,
"dm-devel@redhat.com" <dm-devel@redhat.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"Luis Chamberlain" <mcgrof@kernel.org>
Subject: Re: [PATCH v8 05/11] null_blk: allow non power of 2 zoned devices
Date: Fri, 29 Jul 2022 09:51:54 +0200 [thread overview]
Message-ID: <a2b40d05-5f1d-0e56-b530-ce6d61be7b8a@samsung.com> (raw)
In-Reply-To: <bbcfe218-5bae-266c-5712-3489b2eeaaba@nvidia.com>
On 2022-07-27 23:59, Chaitanya Kulkarni wrote:
>> Sequential Write:
>>
>> x-----------------x---------------------------------x---------------------------------x
>> | IOdepth | 8 | 16 |
>> x-----------------x---------------------------------x---------------------------------x
>> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) |
>> x-----------------x---------------------------------x---------------------------------x
>> | Without patch | 578 | 2257 | 12.80 | 576 | 2248 | 25.78 |
>> x-----------------x---------------------------------x---------------------------------x
>> | With patch | 581 | 2268 | 12.74 | 576 | 2248 | 25.85 |
>> x-----------------x---------------------------------x---------------------------------x
>>
>> Sequential read:
>>
>> x-----------------x---------------------------------x---------------------------------x
>> | IOdepth | 8 | 16 |
>> x-----------------x---------------------------------x---------------------------------x
>> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) |
>> x-----------------x---------------------------------x---------------------------------x
>> | Without patch | 667 | 2605 | 11.79 | 675 | 2637 | 23.49 |
>> x-----------------x---------------------------------x---------------------------------x
>> | With patch | 667 | 2605 | 11.79 | 675 | 2638 | 23.48 |
>> x-----------------x---------------------------------x---------------------------------x
>>
>> Random read:
>>
>> x-----------------x---------------------------------x---------------------------------x
>> | IOdepth | 8 | 16 |
>> x-----------------x---------------------------------x---------------------------------x
>> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) |
>> x-----------------x---------------------------------x---------------------------------x
>> | Without patch | 522 | 2038 | 15.05 | 514 | 2006 | 30.87 |
>> x-----------------x---------------------------------x---------------------------------x
>> | With patch | 522 | 2039 | 15.04 | 523 | 2042 | 30.33 |
>> x-----------------x---------------------------------x---------------------------------x
>>
>> Minor variations are noticed in Sequential write with io depth 8 and
>> in random read with io depth 16. But overall no noticeable differences
>> were noticed
>
> minor variations in with aspect of the performance ?
> are these documented somewhere ?
>
The table above documents those minor variations in performance.
> move the large table of performance numbers to the cover letter it looks
> ugly in the git log...
>
I could do that.
>
WARNING: multiple messages have this Message-ID (diff)
From: Pankaj Raghav <p.raghav@samsung.com>
To: Chaitanya Kulkarni <chaitanyak@nvidia.com>
Cc: "axboe@kernel.dk" <axboe@kernel.dk>,
"bvanassche@acm.org" <bvanassche@acm.org>,
"pankydev8@gmail.com" <pankydev8@gmail.com>,
"Johannes.Thumshirn@wdc.com" <Johannes.Thumshirn@wdc.com>,
"damien.lemoal@opensource.wdc.com"
<damien.lemoal@opensource.wdc.com>,
"snitzer@kernel.org" <snitzer@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"dm-devel@redhat.com" <dm-devel@redhat.com>,
"gost.dev@samsung.com" <gost.dev@samsung.com>,
"jaegeuk@kernel.org" <jaegeuk@kernel.org>,
"hch@lst.de" <hch@lst.de>,
"matias.bjorling@wdc.com" <matias.bjorling@wdc.com>,
Luis Chamberlain <mcgrof@kernel.org>
Subject: Re: [dm-devel] [PATCH v8 05/11] null_blk: allow non power of 2 zoned devices
Date: Fri, 29 Jul 2022 09:51:54 +0200 [thread overview]
Message-ID: <a2b40d05-5f1d-0e56-b530-ce6d61be7b8a@samsung.com> (raw)
In-Reply-To: <bbcfe218-5bae-266c-5712-3489b2eeaaba@nvidia.com>
On 2022-07-27 23:59, Chaitanya Kulkarni wrote:
>> Sequential Write:
>>
>> x-----------------x---------------------------------x---------------------------------x
>> | IOdepth | 8 | 16 |
>> x-----------------x---------------------------------x---------------------------------x
>> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) |
>> x-----------------x---------------------------------x---------------------------------x
>> | Without patch | 578 | 2257 | 12.80 | 576 | 2248 | 25.78 |
>> x-----------------x---------------------------------x---------------------------------x
>> | With patch | 581 | 2268 | 12.74 | 576 | 2248 | 25.85 |
>> x-----------------x---------------------------------x---------------------------------x
>>
>> Sequential read:
>>
>> x-----------------x---------------------------------x---------------------------------x
>> | IOdepth | 8 | 16 |
>> x-----------------x---------------------------------x---------------------------------x
>> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) |
>> x-----------------x---------------------------------x---------------------------------x
>> | Without patch | 667 | 2605 | 11.79 | 675 | 2637 | 23.49 |
>> x-----------------x---------------------------------x---------------------------------x
>> | With patch | 667 | 2605 | 11.79 | 675 | 2638 | 23.48 |
>> x-----------------x---------------------------------x---------------------------------x
>>
>> Random read:
>>
>> x-----------------x---------------------------------x---------------------------------x
>> | IOdepth | 8 | 16 |
>> x-----------------x---------------------------------x---------------------------------x
>> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) |
>> x-----------------x---------------------------------x---------------------------------x
>> | Without patch | 522 | 2038 | 15.05 | 514 | 2006 | 30.87 |
>> x-----------------x---------------------------------x---------------------------------x
>> | With patch | 522 | 2039 | 15.04 | 523 | 2042 | 30.33 |
>> x-----------------x---------------------------------x---------------------------------x
>>
>> Minor variations are noticed in Sequential write with io depth 8 and
>> in random read with io depth 16. But overall no noticeable differences
>> were noticed
>
> minor variations in with aspect of the performance ?
> are these documented somewhere ?
>
The table above documents those minor variations in performance.
> move the large table of performance numbers to the cover letter it looks
> ugly in the git log...
>
I could do that.
>
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2022-07-29 7:52 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220727162246eucas1p1a758799f13d36ba99d30bf92cc5e2754@eucas1p1.samsung.com>
2022-07-27 16:22 ` [PATCH v8 00/11] support non power of 2 zoned device Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
[not found] ` <CGME20220727162247eucas1p203fc14aa17ecbcb3e6215d5304bb0c85@eucas1p2.samsung.com>
2022-07-27 16:22 ` [PATCH v8 01/11] block: make bdev_nr_zones and disk_zone_no generic for npo2 zsze Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-28 2:54 ` Damien Le Moal
2022-07-28 2:54 ` [dm-devel] " Damien Le Moal
[not found] ` <CGME20220727162248eucas1p2ff8c3c2b021bedcae3960024b4e269e9@eucas1p2.samsung.com>
2022-07-27 16:22 ` [PATCH v8 02/11] block: allow blk-zoned devices to have non-power-of-2 zone size Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-27 23:16 ` Bart Van Assche
2022-07-27 23:16 ` [dm-devel] " Bart Van Assche
2022-07-28 12:11 ` Pankaj Raghav
2022-07-28 12:11 ` [dm-devel] " Pankaj Raghav
2022-07-28 13:29 ` Bart Van Assche
2022-07-28 13:29 ` [dm-devel] " Bart Van Assche
2022-07-29 9:09 ` Pankaj Raghav
2022-07-29 9:09 ` [dm-devel] " Pankaj Raghav
2022-07-28 3:07 ` Damien Le Moal
2022-07-28 3:07 ` [dm-devel] " Damien Le Moal
2022-07-28 12:24 ` Pankaj Raghav
2022-07-28 12:24 ` [dm-devel] " Pankaj Raghav
[not found] ` <CGME20220727162249eucas1p28fa44c840e590f6f1b53e0cc12ee3771@eucas1p2.samsung.com>
2022-07-27 16:22 ` [PATCH v8 03/11] nvme: zns: Allow ZNS drives that have non-power_of_2 " Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
[not found] ` <CGME20220727162250eucas1p133e8a814fee934f7161866122ef93273@eucas1p1.samsung.com>
2022-07-27 16:22 ` [PATCH v8 04/11] nvmet: Allow ZNS target to support non-power_of_2 zone sizes Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-28 3:09 ` Damien Le Moal
2022-07-28 3:09 ` [dm-devel] " Damien Le Moal
2022-07-29 7:45 ` Pankaj Raghav
2022-07-29 7:45 ` Pankaj Raghav
[not found] ` <CGME20220727162251eucas1p12939ac3864fd8705ae139eb2d1087d8f@eucas1p1.samsung.com>
2022-07-27 16:22 ` [PATCH v8 05/11] null_blk: allow non power of 2 zoned devices Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-27 21:59 ` Chaitanya Kulkarni
2022-07-27 21:59 ` [dm-devel] " Chaitanya Kulkarni
2022-07-29 7:51 ` Pankaj Raghav [this message]
2022-07-29 7:51 ` Pankaj Raghav
2022-07-28 3:14 ` Damien Le Moal
2022-07-28 3:14 ` [dm-devel] " Damien Le Moal
[not found] ` <CGME20220727162252eucas1p25be8b79231334fa0c759c2475859e93b@eucas1p2.samsung.com>
2022-07-27 16:22 ` [PATCH v8 06/11] zonefs: " Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-28 3:16 ` Damien Le Moal
2022-07-28 3:16 ` [dm-devel] " Damien Le Moal
[not found] ` <CGME20220727162253eucas1p1a5912e0494f6918504cc8ff15ad5d31f@eucas1p1.samsung.com>
2022-07-27 16:22 ` [PATCH v8 07/11] dm-zoned: ensure only power of 2 zone sizes are allowed Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-28 3:18 ` Damien Le Moal
2022-07-28 3:18 ` [dm-devel] " Damien Le Moal
2022-07-28 12:15 ` David Sterba
2022-07-28 12:15 ` [dm-devel] " David Sterba
2022-07-29 8:00 ` Pankaj Raghav
2022-07-29 8:00 ` [dm-devel] " Pankaj Raghav
[not found] ` <CGME20220727162254eucas1p1fd990f746d9f9870b8d58ee0bd01fedd@eucas1p1.samsung.com>
2022-07-27 16:22 ` [PATCH v8 08/11] dm-zone: use generic helpers to calculate offset from zone start Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-28 3:20 ` Damien Le Moal
2022-07-28 3:20 ` [dm-devel] " Damien Le Moal
[not found] ` <CGME20220727162255eucas1p2945c6dca42b799bb3b4abf3edb83dde8@eucas1p2.samsung.com>
2022-07-27 16:22 ` [PATCH v8 09/11] dm-table: allow non po2 zoned devices Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-28 3:22 ` Damien Le Moal
2022-07-28 3:22 ` [dm-devel] " Damien Le Moal
[not found] ` <CGME20220727162256eucas1p284a15532173cce3eca46eee0cee3acdd@eucas1p2.samsung.com>
2022-07-27 16:22 ` [PATCH v8 10/11] dm: call dm_zone_endio after the target endio callback for " Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-28 3:25 ` Damien Le Moal
2022-07-28 3:25 ` [dm-devel] " Damien Le Moal
2022-07-29 8:48 ` Pankaj Raghav
2022-07-29 8:48 ` [dm-devel] " Pankaj Raghav
[not found] ` <CGME20220727162257eucas1p2848a75c4aa7e559abb5d9ae0fbd374c1@eucas1p2.samsung.com>
2022-07-27 16:22 ` [PATCH v8 11/11] dm: add power-of-2 zoned target for non-power-of-2 " Pankaj Raghav
2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav
2022-07-28 4:33 ` Damien Le Moal
2022-07-28 4:33 ` [dm-devel] " Damien Le Moal
2022-08-01 8:35 ` Pankaj Raghav
2022-08-01 8:35 ` [dm-devel] " Pankaj Raghav
2022-07-27 23:19 ` [PATCH v8 00/11] support non power of 2 zoned device Bart Van Assche
2022-07-27 23:19 ` [dm-devel] " Bart Van Assche
2022-07-28 1:52 ` Damien Le Moal
2022-07-28 1:52 ` [dm-devel] " Damien Le Moal
2022-07-28 2:58 ` Bart Van Assche
2022-07-28 2:58 ` [dm-devel] " Bart Van Assche
2022-07-28 3:28 ` Damien Le Moal
2022-07-28 3:28 ` [dm-devel] " Damien Le Moal
2022-07-28 11:57 ` Pankaj Raghav
2022-07-28 11:57 ` [dm-devel] " Pankaj Raghav
2022-07-28 13:30 ` Bart Van Assche
2022-07-28 13:30 ` [dm-devel] " Bart Van Assche
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