Re: [Xenomai-help] Xenomai and futexes - Native API optimized

["M. Koehrer" <mathias_koehrer@domain.hid>]

Hi Jan,

here is the (truncated) output of opreport -l (which seems to be more useful...).

Regards

Mathias
------------------
Profiler running.
delta is 2030247695 per step: 5075
Stopping profiling.
CPU: P4 / Xeon, speed 3192.18 MHz (estimated)
Counted GLOBAL_POWER_EVENTS events (time during which processor is not stopped) with a unit mask of 0x01 (mandatory) count 100000
samples  %        image name               app name                 symbol name
27423    64.2074  vmlinux                  vmlinux                  __ipipe_hard_cpuid
2309      5.4062  xeno_nucleus             xeno_nucleus             (no symbols)
1489      3.4863  bash                     bash                     (no symbols)
1226      2.8705  vmlinux                  vmlinux                  sysenter_past_esp
1209      2.8307  xeno_native              xeno_native              (no symbols)
1091      2.5544  libc-2.3.6.so            libc-2.3.6.so            (no symbols)
792       1.8544  vmlinux                  vmlinux                  __ipipe_syscall_root
700       1.6390  vmlinux                  vmlinux                  __ipipe_dispatch_event
581       1.3603  vmlinux                  vmlinux                  page_fault
316       0.7399  vmlinux                  vmlinux                  __ipipe_stall_root
264       0.6181  vmlinux                  vmlinux                  do_wp_page
232       0.5432  oprofiled                oprofiled                (no symbols)
227       0.5315  vmlinux                  vmlinux                  __ipipe_test_and_stall_root
177       0.4144  ld-2.3.6.so              ld-2.3.6.so              do_lookup_x
157       0.3676  vmlinux                  vmlinux                  find_get_page
156       0.3653  vmlinux                  vmlinux                  __copy_from_user_ll_nozero
156       0.3653  vmlinux                  vmlinux                  __handle_mm_fault
128       0.2997  performance              performance              mytaska
122       0.2856  ld-2.3.6.so              ld-2.3.6.so              strcmp
106       0.2482  vmlinux                  vmlinux                  unmap_vmas
105       0.2458  vmlinux                  vmlinux                  __ipipe_handle_exception
97        0.2271  vmlinux                  vmlinux                  get_page_from_freelist
92        0.2154  vmlinux                  vmlinux                  search_by_key
86        0.2014  vmlinux                  vmlinux                  page_remove_rmap
85        0.1990  vmlinux                  vmlinux                  flush_tlb_page
82        0.1920  vmlinux                  vmlinux                  timer_interrupt
78        0.1826  vmlinux                  vmlinux                  filemap_nopage
77        0.1803  vmlinux                  vmlinux                  __ipipe_unstall_root
75        0.1756  vmlinux                  vmlinux                  release_pages
73        0.1709  oprofile                 oprofile                 (no symbols)
66        0.1545  vmlinux                  vmlinux                  __ipipe_restore_pipeline_head
64        0.1498  vmlinux                  vmlinux                  mwait_idle_with_hints
62        0.1452  ld-2.3.6.so              ld-2.3.6.so              _dl_relocate_object
60        0.1405  vmlinux                  vmlinux                  copy_page_range
60        0.1405  vmlinux                  vmlinux                  find_vma
56        0.1311  vmlinux                  vmlinux                  hrtimer_run_queues
52        0.1218  vmlinux                  vmlinux                  __ipipe_test_root
52        0.1218  vmlinux                  vmlinux                  up_read
50        0.1171  vmlinux                  vmlinux                  __ipipe_unstall_iret_root
49        0.1147  vmlinux                  vmlinux                  do_page_fault
47        0.1100  e1000                    e1000                    (no symbols)
47        0.1100  vmlinux                  vmlinux                  down_read_trylock
46        0.1077  vmlinux                  vmlinux                  error_code
40        0.0937  vmlinux                  vmlinux                  __ipipe_sync_stage
---------------------------
 


> 
> > 
> > Mind to run oprofile on this setup to see where costs primarily come
> from?
> > 


-- 
Mathias Koehrer
mathias_koehrer@domain.hid


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