Re: LMbench2.0 results

[William Lee Irwin III]

Paolo Ciarrocchi wrote:
>> Hi all,
>> I've just ran lmbench2.0 on my laptop.
>> Here the results (again, 2.5.33 seems to be "slow", I don't know why...)

On Sat, Sep 07, 2002 at 09:20:56AM -0700, Andrew Morton wrote:
> The fork/exec/mmap slowdown is the rmap overhead.  I have some stuff
> which partialy improves it.

Hmm, Where does it enter the mmap() path? PTE instantiation is only done
for the VM_LOCKED case IIRC. Otherwise it should be invisible.

Perhaps testing with overcommit on would be useful.

Cheers,
Bill