From: Christoph Hellwig <hch@infradead.org>
To: "Elliott, Robert (Server Storage)" <Elliott@hp.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Jens Axboe <axboe@kernel.dk>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
Wu Fengguang <fengguang.wu@intel.com>
Subject: Re: [PATCH] block: remove artifical max_hw_sectors cap
Date: Wed, 1 Oct 2014 14:12:58 -0700 [thread overview]
Message-ID: <20141001211258.GB24820@infradead.org> (raw)
In-Reply-To: <94D0CD8314A33A4D9D801C0FE68B402958CC7BAB@G4W3202.americas.hpqcorp.net>
On Wed, Oct 01, 2014 at 06:59:34PM +0000, Elliott, Robert (Server Storage) wrote:
> One supporting example: A low limit interferes with creation of
> full stripe writes for RAID controllers.
Yes, both Linux mdraid and parity raids are often crippled by the
default. The mdadm default of 512kb for each chunk combined with
the default limit very much guarantees a horrible out of the box
experience.
next prev parent reply other threads:[~2014-10-01 21:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-06 23:08 [PATCH] block: remove artifical max_hw_sectors cap Christoph Hellwig
2014-09-23 5:59 ` Christoph Hellwig
2014-10-01 13:08 ` Christoph Hellwig
2014-10-01 18:59 ` Elliott, Robert (Server Storage)
2014-10-01 21:12 ` Christoph Hellwig [this message]
2014-10-17 13:12 ` Christoph Hellwig
2014-10-21 20:02 ` Jens Axboe
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