On Friday 04 March 2005 01:28, Chuck Silvers wrote:
>  34.52    370.95   370.95   709745     0.52     0.52  genfs_putpages
>   5.51    695.74    59.24 529689671     0.00     0.00  pmap_clear_attrs
>   2.17    805.80    23.33 532201987     0.00     0.00  pmap_tlb_shootnow

I think it's pretty obvious here that genfs_putpages() is doing more work than 
necessary.  In particular, I have trouble imagining why it needs to call 
pmap_clear_{modify,referenced}() that many times.