From: Jan Kara <jack@suse.cz>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>, Song Liu <song@kernel.org>,
Hans de Goede <hdegoede@redhat.com>, Coly Li <colyli@suse.de>,
Richard Weinberger <richard@nod.at>,
Minchan Kim <minchan@kernel.org>,
Johannes Thumshirn <Johannes.Thumshirn@wdc.com>,
Justin Sanders <justin@coraid.com>,
linux-mtd@lists.infradead.org, dm-devel@redhat.com,
linux-block@vger.kernel.org, linux-bcache@vger.kernel.org,
linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com,
linux-raid@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, cgroups@vger.kernel.org
Subject: Re: [PATCH 04/13] aoe: set an optimal I/O size
Date: Tue, 22 Sep 2020 10:45:17 +0200 [thread overview]
Message-ID: <20200922084517.GB16464@quack2.suse.cz> (raw)
In-Reply-To: <20200921080734.452759-5-hch@lst.de>
On Mon 21-09-20 10:07:25, Christoph Hellwig wrote:
> aoe forces a larger readahead size, but any reason to do larger I/O
> is not limited to readahead. Also set the optimal I/O size, and
> remove the local constants in favor of just using SZ_2G.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
Looks good. You can add:
Reviewed-by: Jan Kara <jack@suse.cz>
Honza
> ---
> drivers/block/aoe/aoeblk.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
> index 5ca7216e9e01f3..d8cfc233e64b93 100644
> --- a/drivers/block/aoe/aoeblk.c
> +++ b/drivers/block/aoe/aoeblk.c
> @@ -347,7 +347,6 @@ aoeblk_gdalloc(void *vp)
> mempool_t *mp;
> struct request_queue *q;
> struct blk_mq_tag_set *set;
> - enum { KB = 1024, MB = KB * KB, READ_AHEAD = 2 * MB, };
> ulong flags;
> int late = 0;
> int err;
> @@ -407,7 +406,8 @@ aoeblk_gdalloc(void *vp)
> WARN_ON(d->gd);
> WARN_ON(d->flags & DEVFL_UP);
> blk_queue_max_hw_sectors(q, BLK_DEF_MAX_SECTORS);
> - q->backing_dev_info->ra_pages = READ_AHEAD / PAGE_SIZE;
> + q->backing_dev_info->ra_pages = SZ_2M / PAGE_SIZE;
> + blk_queue_io_opt(q, SZ_2M);
> d->bufpool = mp;
> d->blkq = gd->queue = q;
> q->queuedata = d;
> --
> 2.28.0
>
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
next prev parent reply other threads:[~2020-09-22 8:45 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-21 8:07 bdi cleanups v6 Christoph Hellwig
2020-09-21 8:07 ` [PATCH 01/13] fs: remove the unused SB_I_MULTIROOT flag Christoph Hellwig
2020-09-21 8:07 ` [PATCH 02/13] drbd: remove dead code in device_to_statistics Christoph Hellwig
2020-09-21 8:07 ` [PATCH 03/13] bcache: inherit the optimal I/O size Christoph Hellwig
2020-09-21 9:54 ` Coly Li
2020-09-21 14:00 ` Christoph Hellwig
2020-09-21 15:09 ` Coly Li
2020-09-21 18:18 ` Christoph Hellwig
2020-09-22 8:44 ` Jan Kara
2020-09-22 9:39 ` Coly Li
2020-09-21 8:07 ` [PATCH 04/13] aoe: set an " Christoph Hellwig
2020-09-22 8:45 ` Jan Kara [this message]
2020-09-21 8:07 ` [PATCH 05/13] bdi: initialize ->ra_pages and ->io_pages in bdi_init Christoph Hellwig
2020-09-22 8:49 ` Jan Kara
2020-09-23 15:16 ` Christoph Hellwig
2020-09-21 8:07 ` [PATCH 06/13] md: update the optimal I/O size on reshape Christoph Hellwig
2020-09-21 8:07 ` [PATCH 07/13] block: lift setting the readahead size into the block layer Christoph Hellwig
2020-09-22 9:13 ` Jan Kara
2020-09-22 9:51 ` Coly Li
2020-09-21 8:07 ` [PATCH 08/13] bdi: remove BDI_CAP_CGROUP_WRITEBACK Christoph Hellwig
2020-09-21 8:07 ` [PATCH 09/13] bdi: remove BDI_CAP_SYNCHRONOUS_IO Christoph Hellwig
2020-09-21 8:07 ` [PATCH 10/13] mm: use SWP_SYNCHRONOUS_IO more intelligently Christoph Hellwig
2020-09-21 8:07 ` [PATCH 11/13] bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag Christoph Hellwig
2020-09-21 8:07 ` [PATCH 12/13] bdi: invert BDI_CAP_NO_ACCT_WB Christoph Hellwig
2020-09-21 8:07 ` [PATCH 13/13] bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag Christoph Hellwig
2020-09-24 6:51 bdi cleanups v7 Christoph Hellwig
2020-09-24 6:51 ` [PATCH 04/13] aoe: set an optimal I/O size Christoph Hellwig
2020-09-24 15:51 ` Martin K. Petersen
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