by Here are the oprofile stats for DCU_MISS_OUTSTANDING and IFU_IFETCH_MISS
during a repetitive kernel compile on 2.5.52-mm1.
Tested on a 16x NUMA-Q with 16GB of RAM. I don't really have a baseline
to compare against atm, but can wander about various kernels and compare.
Let me know if there are other perf. counters you're interested in
(or perhaps even workloads... might be pressed for io though)
Thanks,
Bill
DCU_MISS_OUTSTANDING:
c015d35c 286073 0.579215 path_lookup
c01131f0 299991 0.607394 mark_offset_tsc
c0150b50 408260 0.826608 get_empty_filp
c0135b38 496238 1.00474 __get_page_state
c01359a0 586828 1.18816 nr_free_pages
c013f030 589705 1.19398 zap_pte_range
c01406b8 627686 1.27088 do_wp_page
c01416f0 627890 1.27129 do_no_page
c0139028 645393 1.30673 kmem_cache_free
c013e234 674702 1.36608 pte_unshare
c01377d4 726418 1.47079 check_poison_obj
c0142900 922420 1.86763 vm_enough_memory
c0138e28 1052271 2.13054 kmem_cache_alloc
c013233c 1066434 2.15922 find_get_page
c01b2ee0 1098288 2.22371 __copy_user_intel
c01661fc 1102636 2.23252 d_lookup
c01b3088 1155982 2.34053 __copy_from_user
c0116ba8 1343484 2.72016 x86_profile_hook
c01fc75c 1377869 2.78978 sync_buffer
c0115620 1527197 3.09213 smp_apic_timer_interrupt
c01463f0 1660647 3.36233 page_add_rmap
c013d6c4 2082730 4.21692 __blk_queue_bounce
c011a9b0 3001602 6.07737 scheduler_tick
c01b3020 4047364 8.19473 __copy_to_user
c01465ec 5508580 11.1533 page_remove_rmap
c011a4f8 7613873 15.4159 load_balance
IFU_IFETCH_MISS:
c015d97c 7 0.876095 open_namei
c01b1d74 7 0.876095 radix_tree_lookup
c01b3240 7 0.876095 atomic_dec_and_lock
c0108f2c 8 1.00125 system_call
c0109abc 8 1.00125 page_fault
c0116ba8 8 1.00125 x86_profile_hook
c0132688 8 1.00125 do_generic_mapping_read
c0143d40 8 1.00125 do_brk
c01469b8 8 1.00125 increment_rss
c011ae98 9 1.12641 do_schedule
c0135468 9 1.12641 buffered_rmqueue
c01359a0 9 1.12641 nr_free_pages
c0139028 9 1.12641 kmem_cache_free
c0142900 9 1.12641 vm_enough_memory
c01355a4 10 1.25156 __alloc_pages
c011a9b0 12 1.50188 scheduler_tick
c013233c 13 1.62703 find_get_page
c0116b00 14 1.75219 pfn_to_nid
c0119c14 14 1.75219 kmap_atomic
c013e7e0 15 1.87735 pte_try_to_share
c01463f0 19 2.37797 page_add_rmap
c01412d0 20 2.50313 do_anonymous_page
c0141aa0 22 2.75344 handle_mm_fault
c01416f0 24 3.00375 do_no_page
c015c904 25 3.12891 link_path_walk
c0117350 27 3.37922 do_page_fault
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