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On Mon, 2004-12-06 at 20:34, Peter Ruskin wrote: |
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> On Monday 06 December 2004 12:02, Holly Bostick wrote: |
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> > Holly Bostick wrote: |
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> > > Peter Ruskin wrote: |
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> > >> On Monday 06 December 2004 05:09, Ow Mun Heng wrote: |
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> > > >>PS : Your signature noted that you're runnning |
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> > > >> 2.6.9-r6-regparm. |
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> > >>> |
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> > >>> What's Regparm |
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> > >> |
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> > >> I just added "-regparm" to "EXTRAVERSION" in the kernel source |
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> > >> Makefile to remind me that I had set CONFIG_REGPARM=y |
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> > >> (Processor type and features): |
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> > >> |
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> > >> "Use register arguments (EXPERIMENTAL) (REGPARM) |
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> > >> |
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> > >> Compile the kernel with -mregparm=3. This uses an different |
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> > >> ABI and passes the first three arguments of a function call in |
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> > >> registers. This will probably break binary only modules. |
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> > > |
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That's fine and all, but it's like Greek to me, What does it do anyway? |
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> > > Like the ATI drivers, if you use them (which I do), thus |
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> > > presumably also the nVidia drivers, if you use them. So I don't |
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> > > use this setting myself, tasty as it looks |
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I'm on a ATI Radeon 9000, but I don't use the drivers from ATI. |
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> |
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> I use the nVidia drivers with no problems. The whole desktop seems |
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> a bit more snappy with regparm. |
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Hmm... how does passing registers makes things snappier? |
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> > > |
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> > > Just a note, before Ow Mung goes recompiling his kernel to |
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> > > enable this ;-) . |
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I just might :-) |
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I'm still on 2.6.9-r4 |
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> > Anyway, the point being that there are some modules that seem |
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> > unrelated, but which one might be using, that will break if |
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> > regparm is set. So be careful. |
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> > |
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> Good advice. It's been around for a while but I didn't use it |
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> before because it broke Win4Lin. Now that Netraverse has issued |
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> new patches for this problem, I'm experiencing regparm for the |
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> first time. |
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I use VMware. So.. will it break? I guess I may have to experiment. |
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-- |
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Ow Mun Heng |
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Gentoo/Linux on D600 1.4Ghz |
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Neuromancer 14:53:16 up 5:31, 5 users, 0.29, 0.48, 0.45 |
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-- |
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