Messages in this thread |  | | Date | Wed, 19 Feb 2003 21:27:41 -0800 | From | "Martin J. Bligh" <> | Subject | Re: [Lse-tech] Re: Performance of partial object-based rmap |
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>>> Could I get a larger, multiplicative differential profile? >>> i.e. ratios of the fractions of profile hits? >>> If you have trouble generating such I can do so myself from >>> fuller profile results. > > On Wed, Feb 19, 2003 at 09:14:10PM -0800, Martin J. Bligh wrote: >> before: >> 187256 total >> after: >> 170196 total > > Well, I was trying to get an idea of what got slower to compensate > for the improvement in page_(add|remove)_rmap() times.
diffprofile:
1514 default_idle 921 .text.lock.file_table 145 vm_enough_memory 131 release_pages 93 file_move 68 __copy_to_user_ll 62 fd_install 60 buffered_rmqueue 58 vma_merge 52 __fput ... -65 kmem_cache_alloc -72 copy_page_range -73 do_anonymous_page -76 get_empty_filp -98 filemap_nopage -168 unmap_all_pages -352 find_get_page -402 kmem_cache_free -594 __pte_chain_free -4360 page_add_rmap -13542 page_remove_rmap -17060 total
I'll try out akpm's file table stuff later today.
M.
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