Messages in this thread | | | Subject | Re: [RFC PATCH 1/4] powerpc 2.6.16-rt17: to build on powerpc w/ RT | From | john stultz <> | Date | Wed, 16 Aug 2006 17:56:10 -0700 |
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On Thu, 2006-08-17 at 02:26 +0200, Benjamin Herrenschmidt wrote: > > Hey Ben, > > I appreciate your looking over my patch. You are correct, the > > conversion is a bit rough and I've not yet been able to work on the > > powerpc vDSO, although I'd like to get it working so any help or > > suggestions would be appreciated (is there a reason the vDSO is written > > in ASM?). > > > > If you have any other concerns w/ that patch, or the generic timekeeping > > code, please let me know and I'll do what I can to address them. > > Well, I've been wanting to look at your stuff and possibly do the > conversion for some time, provided we don't lose performances ... Our > current implementation is very optimized to avoid even memory barriers > in most cases and I doubt we'll be able to be as fine tuned using your > generic code, thus it's a tradeoff decision that we have to do. But > then, I need to look into the details before doing any final > statement :)
Ok, although do let me know if you see places where the generic code could use any of the optimizations used in powerpc.
thanks -john
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