Re: O_DIRECT to md raid 6 is slow
From: John Robinson <hidden>
Date: 2012-08-15 12:08:37
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On 15/08/2012 01:49, Andy Lutomirski wrote:
If I do: # dd if=/dev/zero of=/dev/md0p1 bs=8M
[...]
It looks like md isn't recognizing that I'm writing whole stripes when I'm in O_DIRECT mode.
I see your md device is partitioned. Is the partition itself stripe-aligned? Cheers, John.