Re: Linux mdadm superblock question.

From: david
Date: Wed Feb 17 2010 - 17:21:51 EST


On Wed, 17 Feb 2010, Nick Bowler wrote:

On 13:17 Wed 17 Feb , david@xxxxxxx wrote:
On Wed, 17 Feb 2010, Nick Bowler wrote:

On 10:41 Wed 17 Feb , david@xxxxxxx wrote:
On Wed, 17 Feb 2010, Nick Bowler wrote:
It takes about half a second for mdadm to assemble my root array, is
that what you're referring to?

I assume that kernel auto-assembly is no faster, although I've never
used it. Regardless, half a second isn't very long to wait.

If you are aiming for a 5-second boot time it's 10% of your total boot
time. That's a lot for a feature that's not needed.

Only if the kernel auto-assembly takes zero time, which it obviously
does not.

the assembly time would probably be the same, but the initramfs being
proposed did not include that time either.

This was the *only* time that was included. Quoting myself:

It takes about half a second for mdadm to assemble my root array

sorry, I misunderstood, I thought you were referring to the time added by using the initramfs itself.

David Lang
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