[PATCH 2/2] powerpc,kexec: Speedup kexec hpte tear down
mikey at neuling.org
Tue May 11 21:06:58 EDT 2010
> > We probably only do the remove on < 1% of the hptes now. So I doubt we
> > would get a speedup since most of the time we aren't do the remove
> > anymore.
> It would be nice to have some actual numbers. Could you add some
> counters and print the results at the end? (Or don't you have any
> way to print things at that stage?)
Printing is hard at that point but I think we can do it. I'll try to
when I get some time.
A heavily loaded system which kdumps will need a lot more hptes removes
than kexec, so stats for both these cases might be useful also.
More information about the kexec