From: Christoph Anton Mitterer <calestyo@scientia.net>
To: Qu Wenruo <quwenruo.btrfs@gmx.com>,
Sanidhya Solanki <jpage.lkml@gmail.com>
Cc: David Sterba <dsterba@suse.cz>,
clm@fb.com, jbacik@fb.com, linux-btrfs@vger.kernel.org
Subject: Re: [PATCH] BTRFS: Adds an option to select RAID Stripe size
Date: Wed, 30 Dec 2015 20:48:34 +0100 [thread overview]
Message-ID: <1451504914.6350.12.camel@scientia.net> (raw)
In-Reply-To: <5683E5E4.5010006@gmx.com>
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On Wed, 2015-12-30 at 22:10 +0800, Qu Wenruo wrote:
> Or, just don't touch it until there is really enough user demand.
I definitely think that there is demand... as I've written previously,
when I did some benchmarking tests (though on MD and HW raid) then
depending on the RAID chunk size, one got different kind of IO patterns
tuned.
> (In stripe_len case, it's also a possible choice, as configurable
> stripe
> length doesn't really affect much except RAID5/6)
Sure about that? Admittedly I haven't checked it for the not parity
RAIDs, but I'd expect that for the same reasons you get out different
performance for sequential/random/vector reads/writes, you'd also get
that more or less at least at RAID0.
Cheers,
Chris.
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prev parent reply other threads:[~2015-12-30 19:48 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-28 12:24 [PATCH] BTRFS: Adds an option to select RAID Stripe size Sanidhya Solanki
2015-12-28 22:19 ` Christoph Anton Mitterer
2015-12-28 20:38 ` Sanidhya Solanki
2015-12-29 1:21 ` Christoph Anton Mitterer
2015-12-28 21:43 ` Sanidhya Solanki
2015-12-29 3:42 ` Christoph Anton Mitterer
2015-12-29 0:03 ` Sanidhya Solanki
2015-12-29 4:26 ` Christoph Anton Mitterer
2015-12-29 1:31 ` Sanidhya Solanki
2015-12-29 6:03 ` Christoph Anton Mitterer
2015-12-29 2:23 ` Sanidhya Solanki
2015-12-29 15:32 ` Christoph Anton Mitterer
2015-12-29 16:44 ` Duncan
2015-12-30 2:56 ` Christoph Anton Mitterer
2015-12-29 18:06 ` David Sterba
2015-12-30 20:00 ` Christoph Anton Mitterer
2015-12-30 21:02 ` Duncan
2015-12-30 21:13 ` Christoph Anton Mitterer
2016-01-02 11:52 ` Sanidhya Solanki
2016-01-03 1:37 ` Qu Wenruo
2016-01-03 2:26 ` Christoph Anton Mitterer
2016-01-05 10:44 ` David Sterba
2016-01-05 18:48 ` Christoph Anton Mitterer
2016-01-10 3:11 ` Sanidhya Solanki
2016-01-11 1:29 ` Qu Wenruo
2016-01-11 15:43 ` Christoph Anton Mitterer
2016-01-11 11:49 ` Sanidhya Solanki
2016-01-11 15:57 ` Christoph Anton Mitterer
2016-01-11 16:01 ` Hugo Mills
2016-01-12 12:23 ` Austin S. Hemmelgarn
2016-01-12 12:07 ` Sanidhya Solanki
2015-12-29 13:39 ` David Sterba
2015-12-29 11:15 ` Sanidhya Solanki
2015-12-29 17:06 ` David Sterba
2015-12-29 21:32 ` Sanidhya Solanki
2015-12-30 6:39 ` Sanidhya Solanki
2015-12-30 11:59 ` Qu Wenruo
2015-12-30 9:54 ` Sanidhya Solanki
2015-12-30 14:10 ` Qu Wenruo
2015-12-30 11:15 ` Sanidhya Solanki
2015-12-30 15:58 ` David Sterba
2015-12-30 21:19 ` Sanidhya Solanki
2015-12-30 16:17 ` David Sterba
2015-12-30 21:21 ` Sanidhya Solanki
2016-01-05 10:33 ` David Sterba
2015-12-31 0:46 ` Qu Wenruo
2016-01-05 10:16 ` David Sterba
2015-12-30 19:48 ` Christoph Anton Mitterer [this message]
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