[parisc-linux-cvs] cpup test comment wrong

[Joel Soete]

> -- Original Message --
> Date: Tue, 4 Jan 2005 13:12:41 -0700
> From: Grant Grundler <grundler at parisc-linux.org>
> To: parisc-linux-cvs at lists.parisc-linux.org
> Subject: Re: [parisc-linux-cvs] cpup test comment wrong
> 
> 
> On Tue, Jan 04, 2005 at 12:50:00PM -0700, Grant Grundler wrote:
> > 	o run multiple iterations to avoid page faults/TLB activity
> 
> I just realized this comment must be wrong.
> with 64MB * 2. I must be page faulting.
> But I won't be zero pages maybe.
> 
> So the test needs to use a large enough buffer to exhaust
> the cache but not so big that the TLB thrashes.
> Or we need HugeTLB FS support :^)
> 
I suggested too this idea to Randolph because kernel seems also to flush
a lot of pages and few ranges (but may be simply a pb of optimisation like
it was implemented in user space?).

But Randolph suggest me to better work on l*_user stuff (any way still in
my todo)

Thanks a lot for help and I wish a hapy new year ;-)
        Joel

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