kern/113885: [gmirror] [patch] improved gmirror balance algorithm

Ivan Voras ivoras at
Thu Jul 16 11:40:15 UTC 2009

Emil Mikulic wrote:
> The following reply was made to PR kern/113885; it has been noted by GNATS.
> From: Emil Mikulic <emikulic at>
> To: bug-followup at
> Cc: will at
> Subject: Re: kern/113885: [gmirror] [patch] improved gmirror balance
> 	algorithm
> Date: Thu, 16 Jul 2009 17:56:19 +1000
>  Will Andrews' patch is *fantastic*
>  With this patch and gmirror set to "load" style balancing, I can run two
>  long sequential reads in parallel and get practically linear scaling on
>  a two-disk mirror.
>  Could someone please commit this?
>  --Emil

Can you please do some testing (of the style you just did but also 
diskinfo -vt and possibly random reads) on both patch candidates:

Unless there are significant differences in favour of the second 
version, I'm inclined to commit the version in the PR (unless problems 
and obstructions are indicated, of course).

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