Re: Performance of highpte

["Martin J. Bligh" <mbligh@aracnet.com>]

Odd. linux-mm helpfully stripped the results ... I'll try once more below,
if that doesn't work, try getting it off linux-kernel.


> Kernbench-2: (make -j N vmlinux, where N = 2 x num_cpus)
>                         Elapsed        User      System         CPU
>          2.5.59-mjb5       45.64      564.71      110.73     1479.50
>  2.5.59-mjb5-highpte       46.38      565.32      118.35     1473.50


--On Saturday, February 08, 2003 11:29:33 -0800 "Martin J. Bligh"
<mbligh@aracnet.com> wrote:

> Hmmm. Looks like we need to dust off UKVA to me.
> 
> diffprofile:
> 
> 3790 page_remove_rmap
> 3213 default_idle
> 1299 kmap_atomic
> 803 kmap_atomic_to_page
> 776 kmem_cache_free
> 676 __pte_chain_free
> 486 page_add_rmap
> 240 unmap_all_pages
> 225 kmem_cache_alloc
> 166 vm_enough_memory
> 132 do_generic_mapping_read
> 100 handle_mm_fault
> 82 buffered_rmqueue
> 79 __copy_from_user_ll
> 67 update_atime
> 66 kunmap_atomic
> 63 release_pages
> 58 filemap_nopage
> 55 file_move
> 51 generic_file_open
> 51 find_get_page
> ...
> -52 dput
> -61 do_schedule
> -63 get_empty_filp
> -74 do_page_fault
> -96 vfs_read
> -97 path_lookup
> -121 fd_install
> -159 pte_alloc_one
> -260 .text.lock.file_table
> -372 page_address
> 
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> 


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