Thread (13 messages) 13 messages, 7 authors, 2012-08-22

Re: O_DIRECT to md raid 6 is slow

From: Stan Hoeppner <hidden>
Date: 2012-08-20 05:42:05

On 8/20/2012 12:19 AM, Dave Chinner wrote:
Oh, you're probably complaining about that write number.
I wasn't complaining.  You know me better than that.

The cops caught me robbing a bank.  Under pressure, I pointed at you and
said "He gave me the gun and ammo!". ;)  Of course it was completely my
responsibility for shooting myself in the foot with it. :)
Either way, the point I was making in the original post stands -
RAID6 sucks balls for most workloads as they only do small writes in
comparison to the stripe width of the volume....
Agreed.  Which was the point I originally made in this thread.  "We"
simply got a minor detail wrong.  It seems folks on the linux-raid list
like to split every hair 2^6 times, with extremely valid points getting
lost when the discussion drops into the weeds.

Sorry I dragged you into this Dave.

-- 
Stan
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