Date: Mon, 4 May 2009 16:38:50 +0300 From: =?UTF-8?B?T2RoaWFtYm8gIOODr+OCt+ODs+ODiOODsw==?= <odhiambo@gmail.com> To: Julian Elischer <julian@elischer.org> Cc: FreeBSD Current <current@freebsd.org> Subject: Re: VIMAGE status Message-ID: <991123400905040638v24070cb9rc067d5efab67010@mail.gmail.com> In-Reply-To: <991123400905040512s196ec51o3a084b9e1fc8a0e1@mail.gmail.com> References: <49FC812B.2070305@elischer.org> <991123400905040512s196ec51o3a084b9e1fc8a0e1@mail.gmail.com>
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2009/5/4 Odhiambo =E3=83=AF=E3=82=B7=E3=83=B3=E3=83=88=E3=83=B3 <odhiambo@g=
mail.com>
>
>
> On Sat, May 2, 2009 at 8:21 PM, Julian Elischer <julian@elischer.org>wrot=
e:
>
>> 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 ha=
ve
>> 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 sa=
me
>> 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?
>
Pardon me for the stupid question. Google has given me the whipping I
deserve!
--=20
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254733744121/+254722743223
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
"Clothes make the man. Naked people have little or no influence on
society."
-- Mark Twain
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