VIMAGE status

[Odhiambo ワシントン]

On Sat, May 2, 2009 at 8:21 PM, Julian Elischer <julian at elischer.org> wrote:

> The VIMAGE code is nearly all in the the kernel.
>
> One is now able to make VIMAGE kernels (add options VIMAGE)
> though they don't actually allow you to make multiple
> vimages instances yet..
>
> The VIMAGE option enables all the low level changes needed
> throughout the kernel.
>
> The VIMAGE_GLOBALS option basically sets thing sback to how they were
> before.
>
> Having neither (the default) gives a kernel that is a kind of hybrid.
>
> The Hybrid state is what will go forward as 'NON-VIMAGE' mode
> and the VIMAGE_GLOBALS mode will probably go away in time as
> it complicates the code.
>
> The aim of this mail is to ask people to try add the VIMAGE option
> to their regular kernels and try use them as you woudl normally.
> You will not yet be able to use any new VIMAGE features but we
> should be fully compatible with previous kernels.
>
> Please report any concerns to the freebsd-virtualization@ mailing list.
>
> THEORETICALLY you should not see any changes in behaviour, however we have
> the following issues:
>
> * SCTP is not fully converted yet. add 'nooptions SCTP' for now if you
>  are not using it yet.
>
> * An NFS (crash) issue was reported. This MAY have been fixed...
>
>
> Theory tells us that all three kernel options should behave about the same
> but if you do try this, and have any benchmarking facilities,
> it would be incredibly useful if you could let us know if you see any
> performance changes between the three.
>
>
> thanks,
>
> Julian (currently running a VIMAGE kernel myself)


I am ignorant. What is this VIMAGE?


-- 
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254733744121/+254722743223
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