Messages in this thread | | | Date | Wed, 10 Sep 1997 22:50:46 +0200 | From | Pavel Machek <> | Subject | Re: CONFIG_SMP patch available for 2.1.54 |
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> From: alan@lxorguk.ukuu.org.uk (Alan Cox) > Date: Tue, 9 Sep 1997 22:10:07 +0100 (BST) > > Using SMP kernels on an Uniprocessor throws away performance - on some > architectures quite a lot. > > I had always thought that it wasn't a bad idea for kernel hackers with > only uniprocessors to occasionally trying compiling one of their kernels > SMP, just to test for bugs and make sure their drivers, et. al all > compiled in SMP operation. Is this really worth the effort, or should I > not bother?
Some races, etc. will probably still show only in real-SMP cases.
BTW it would be _very_ nice to print warning somewhere that this is SMP kernel - I just build SMP kernel on my 486, and during boot it said _nothing_ about being SMP.
What about changing this Linux version 2.1.55 (root@Elf) (gcc version 2.7.2.1) #1 Wed Sep 10 to Linux version 2.1.55/SMP (root@Elf) (gcc version 2.7.2.1) #1 Wed Sep ?
I think that it is worth it. (I do not submit patch. My kernel is too modified, and linus would ignore it from me, anyway.) Pavel
-- I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).
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