From: Hannes Reinecke <hare@suse.de>
To: Damien Le Moal <dlemoal@kernel.org>,
linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
linux-scsi@vger.kernel.org,
"Martin K . Petersen" <martin.petersen@oracle.com>,
dm-devel@lists.linux.dev, Mike Snitzer <snitzer@redhat.com>,
linux-nvme@lists.infradead.org, Keith Busch <kbusch@kernel.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v5 08/28] block: Fake max open zones limit when there is no limit
Date: Wed, 3 Apr 2024 17:28:47 +0200 [thread overview]
Message-ID: <0e93e91e-e8f8-44ed-bb46-48cc8d7bbd1f@suse.de> (raw)
In-Reply-To: <20240403084247.856481-9-dlemoal@kernel.org>
On 4/3/24 10:42, Damien Le Moal wrote:
> For a zoned block device that has no limit on the number of open zones
> and no limit on the number of active zones, the zone write plug mempool
> is created with a size of 128 zone write plugs. For such case, set the
> device max_open_zones queue limit to this value to indicate to the user
> the potential performance penalty that may happen when writing
> simultaneously to more zones than the mempool size.
>
> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
> ---
> block/blk-zoned.c | 41 +++++++++++++++++++++++++++++++++++------
> 1 file changed, 35 insertions(+), 6 deletions(-)
>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich
next prev parent reply other threads:[~2024-04-03 15:28 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-03 8:42 [PATCH v5 00/28] Zone write plugging Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 01/28] block: Restore sector of flush requests Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 02/28] block: Remove req_bio_endio() Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 03/28] block: Introduce blk_zone_update_request_bio() Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 04/28] block: Introduce bio_straddles_zones() and bio_offset_from_zone_start() Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 05/28] block: Allow using bio_attempt_back_merge() internally Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 06/28] block: Remember zone capacity when revalidating zones Damien Le Moal
2024-04-04 17:35 ` Bart Van Assche
2024-04-03 8:42 ` [PATCH v5 07/28] block: Introduce zone write plugging Damien Le Moal
2024-04-03 9:44 ` Christoph Hellwig
2024-04-03 15:28 ` Hannes Reinecke
2024-04-04 18:31 ` Bart Van Assche
2024-04-04 23:07 ` Damien Le Moal
2024-04-04 23:18 ` Damien Le Moal
2024-04-04 23:42 ` Bart Van Assche
2024-04-05 0:02 ` Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 08/28] block: Fake max open zones limit when there is no limit Damien Le Moal
2024-04-03 9:43 ` Christoph Hellwig
2024-04-03 15:28 ` Hannes Reinecke [this message]
2024-04-04 19:04 ` Bart Van Assche
2024-04-03 8:42 ` [PATCH v5 09/28] block: Allow zero value of max_zone_append_sectors queue limit Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 10/28] block: Implement zone append emulation Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 11/28] block: Allow BIO-based drivers to use blk_revalidate_disk_zones() Damien Le Moal
2024-04-04 19:10 ` Bart Van Assche
2024-04-03 8:42 ` [PATCH v5 12/28] dm: Use the block layer zone append emulation Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 13/28] scsi: sd: " Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 14/28] ublk_drv: Do not request ELEVATOR_F_ZBD_SEQ_WRITE elevator feature Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 15/28] null_blk: " Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 16/28] null_blk: Introduce zone_append_max_sectors attribute Damien Le Moal
2024-04-04 19:19 ` Bart Van Assche
2024-04-03 8:42 ` [PATCH v5 17/28] null_blk: Introduce fua attribute Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 18/28] nvmet: zns: Do not reference the gendisk conv_zones_bitmap Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 19/28] block: Remove BLK_STS_ZONE_RESOURCE Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 20/28] block: Simplify blk_revalidate_disk_zones() interface Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 21/28] block: mq-deadline: Remove support for zone write locking Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 22/28] block: Remove elevator required features Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 23/28] block: Do not check zone type in blk_check_zone_append() Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 24/28] block: Move zone related debugfs attribute to blk-zoned.c Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 25/28] block: Replace zone_wlock debugfs entry with zone_wplugs entry Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 26/28] block: Remove zone write locking Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 27/28] block: Do not force select mq-deadline with CONFIG_BLK_DEV_ZONED Damien Le Moal
2024-04-03 8:42 ` [PATCH v5 28/28] block: Do not special-case plugging of zone write operations Damien Le Moal
2024-04-04 13:40 ` [PATCH v5 00/28] Zone write plugging Hans Holmberg
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