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btrfs-cleaner pinned CPU to 100% usage

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Dec 3rd, 2013
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  1. # ========
  2. # captured on: Tue Dec 3 12:14:54 2013
  3. # hostname : <scrubbed>
  4. # os release : 3.12.2-1-ARCH
  5. # perf version : 3.12.0
  6. # arch : x86_64
  7. # nrcpus online : 8
  8. # nrcpus avail : 8
  9. # cpudesc : Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz
  10. # cpuid : GenuineIntel,6,58,9
  11. # total memory : 8074004 kB
  12. # cmdline : /usr/bin/perf record -a sleep 20
  13. # event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 1, precise_ip = 0, attr_mmap2 = 0, attr_mmap = 1, attr_mmap_data = 0
  14. # HEADER_CPU_TOPOLOGY info available, use -I to display
  15. # HEADER_NUMA_TOPOLOGY info available, use -I to display
  16. # pmu mappings: cpu = 4, software = 1, tracepoint = 2, uncore_cbox_0 = 6, uncore_cbox_1 = 7, uncore_cbox_2 = 8, uncore_cbox_3 = 9, breakpoint = 5
  17. # ========
  18. #
  19. # Samples: 83K of event 'cycles'
  20. # Event count (approx.): 67217087967
  21. #
  22. # Overhead Command Shared Object Symbol
  23. # ........ ............... ......................... ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
  24. #
  25. 15.93% btrfs-cleaner [kernel.kallsyms] [k] __etree_search.constprop.48
  26. 15.84% btrfs-cleaner [kernel.kallsyms] [k] radix_tree_lookup_element
  27. 10.07% btrfs-cleaner [kernel.kallsyms] [k] tree_insert
  28. 5.93% btrfs-cleaner [kernel.kallsyms] [k] _raw_spin_lock
  29. 5.62% btrfs-cleaner [kernel.kallsyms] [k] _raw_spin_unlock
  30. 4.50% btrfs-cleaner [kernel.kallsyms] [k] kmem_cache_alloc
  31. 2.02% btrfs-cleaner [kernel.kallsyms] [k] _raw_spin_lock_irq
  32. 1.80% btrfs-cleaner [kernel.kallsyms] [k] kmem_cache_free
  33. 1.71% btrfs-cleaner [kernel.kallsyms] [k] free_extent_state
  34. 1.54% btrfs-cleaner [kernel.kallsyms] [k] __mark_inode_dirty
  35. 1.33% btrfs-cleaner [kernel.kallsyms] [k] clear_page_dirty_for_io
  36. 1.33% btrfs-cleaner [kernel.kallsyms] [k] __rcu_read_unlock
  37. 1.31% btrfs-cleaner [kernel.kallsyms] [k] _raw_spin_lock_irqsave
  38. 1.29% btrfs-cleaner [kernel.kallsyms] [k] btrfs_defrag_file
  39. 1.29% btrfs-cleaner [kernel.kallsyms] [k] __set_extent_bit
  40. 1.28% btrfs-cleaner [kernel.kallsyms] [k] dec_zone_page_state
  41. 1.00% btrfs-cleaner [kernel.kallsyms] [k] __do_page_cache_readahead
  42. 0.97% btrfs-cleaner [kernel.kallsyms] [k] find_get_page
  43. 0.94% btrfs-cleaner [kernel.kallsyms] [k] __set_page_dirty_nobuffers
  44. 0.92% btrfs-cleaner [kernel.kallsyms] [k] radix_tree_lookup
  45. 0.89% btrfs-cleaner [kernel.kallsyms] [k] page_waitqueue
  46. 0.89% btrfs-cleaner [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
  47. 0.84% btrfs-cleaner [kernel.kallsyms] [k] page_mapping
  48. 0.84% btrfs-cleaner [kernel.kallsyms] [k] clear_extent_bit
  49. 0.80% btrfs-cleaner [kernel.kallsyms] [k] radix_tree_tag_set
  50. 0.76% btrfs-cleaner [kernel.kallsyms] [k] unlock_page
  51. 0.75% btrfs-cleaner [kernel.kallsyms] [k] set_page_dirty
  52. 0.73% btrfs-cleaner [kernel.kallsyms] [k] __rcu_read_lock
  53. 0.72% btrfs-cleaner [kernel.kallsyms] [k] alloc_extent_state
  54. 0.69% btrfs-cleaner [kernel.kallsyms] [k] __percpu_counter_add
  55. 0.69% btrfs-cleaner [kernel.kallsyms] [k] rb_insert_color
  56. 0.68% btrfs-cleaner [kernel.kallsyms] [k] find_lock_page
  57. 0.67% swapper [kernel.kallsyms] [k] poll_idle
  58. 0.66% btrfs-cleaner [kernel.kallsyms] [k] split_state
  59. 0.65% btrfs-cleaner [kernel.kallsyms] [k] merge_state.part.35
  60. 0.63% btrfs-cleaner [kernel.kallsyms] [k] put_page
  61. 0.60% btrfs-cleaner [kernel.kallsyms] [k] _raw_spin_unlock_irq
  62. 0.53% btrfs-cleaner [kernel.kallsyms] [k] clear_state_bit
  63. 0.51% btrfs-cleaner [kernel.kallsyms] [k] free_extent_state.part.34
  64. 0.50% btrfs-cleaner [kernel.kallsyms] [k] __lookup_extent_mapping
  65. 0.49% btrfs-cleaner [kernel.kallsyms] [k] _cond_resched
  66. 0.44% btrfs-cleaner [kernel.kallsyms] [k] set_page_extent_mapped
  67. 0.41% btrfs-cleaner [kernel.kallsyms] [k] radix_tree_prev_hole
  68. 0.37% btrfs-cleaner [kernel.kallsyms] [k] __wake_up_bit
  69. 0.33% btrfs-cleaner [kernel.kallsyms] [k] btrfs_merge_extent_hook
  70. 0.33% btrfs-cleaner [kernel.kallsyms] [k] account_page_dirtied
  71. 0.33% btrfs-cleaner [kernel.kallsyms] [k] lock_extent_bits
  72. 0.31% btrfs-cleaner [kernel.kallsyms] [k] btrfs_split_extent_hook
  73. 0.27% btrfs-cleaner [kernel.kallsyms] [k] __inc_zone_state
  74. 0.26% btrfs-cleaner [kernel.kallsyms] [k] rb_erase
  75. 0.24% btrfs-cleaner [kernel.kallsyms] [k] __init_waitqueue_head
  76. 0.24% btrfs-cleaner [kernel.kallsyms] [k] __wake_up_common
  77. 0.24% btrfs-cleaner [kernel.kallsyms] [k] btrfs_lookup_ordered_extent
  78. 0.24% btrfs-cleaner [kernel.kallsyms] [k] rb_next
  79. 0.23% btrfs-cleaner [kernel.kallsyms] [k] __inc_zone_page_state
  80. 0.22% btrfs-cleaner [kernel.kallsyms] [k] find_or_create_page
  81. 0.21% btrfs-cleaner [kernel.kallsyms] [k] __wake_up
  82. 0.21% btrfs-cleaner [kernel.kallsyms] [k] set_state_bits
  83. 0.20% btrfs-cleaner [kernel.kallsyms] [k] btrfs_clear_bit_hook
  84. 0.19% btrfs-cleaner [kernel.kallsyms] [k] page_mkclean
  85. 0.19% btrfs-cleaner [kernel.kallsyms] [k] __tree_search
  86. 0.16% btrfs-cleaner [kernel.kallsyms] [k] __mutex_lock_slowpath
  87. 0.14% kwin libQtGui.so.4.8.5 [.] 0x00000000001c04eb
  88. 0.13% swapper [kernel.kallsyms] [k] intel_idle
  89. 0.13% btrfs-cleaner [kernel.kallsyms] [k] rb_prev
  90. 0.13% btrfs-cleaner [kernel.kallsyms] [k] unlock_extent
  91. 0.11% btrfs-cleaner [kernel.kallsyms] [k] __mutex_unlock_slowpath
  92. 0.11% btrfs-cleaner [kernel.kallsyms] [k] calc_csum_metadata_size
  93. 0.06% btrfs-cleaner [kernel.kallsyms] [k] cache_state
  94. 0.06% swapper [kernel.kallsyms] [k] i8042_interrupt
  95. 0.06% btrfs-cleaner [kernel.kallsyms] [k] btrfs_set_bit_hook
  96. 0.06% btrfs-cleaner [kernel.kallsyms] [k] radix_tree_lookup_slot
  97. 0.05% btrfs-delalloc- [kernel.kallsyms] [k] fill_window
  98. 0.05% btrfs-cleaner [kernel.kallsyms] [k] free_extent_map
  99. 0.05% konsole libQtGui.so.4.8.5 [.] 0x00000000001c1a50
  100. 0.04% btrfs-cleaner [kernel.kallsyms] [k] lock_extent
  101. 0.04% btrfs-cleaner [kernel.kallsyms] [k] _raw_read_lock
  102. 0.04% btrfs-cleaner [kernel.kallsyms] [k] _raw_read_unlock
  103. 0.03% btrfs-cleaner [kernel.kallsyms] [k] btrfs_check_data_free_space
  104. 0.03% btrfs-delalloc- [kernel.kallsyms] [k] longest_match
  105. 0.03% btrfs-cleaner [kernel.kallsyms] [k] btrfs_delalloc_reserve_metadata
  106. 0.03% plasma-desktop libQtGui.so.4.8.5 [.] 0x00000000007ac31b
  107. 0.03% konsole libglib-2.0.so.0.3800.2 [.] 0x0000000000087fba
  108. 0.03% btrfs-cleaner [kernel.kallsyms] [k] btrfs_set_page_dirty
  109. 0.03% konsole libQtCore.so.4.8.5 [.] 0x00000000000b499b
  110. 0.03% plasma-desktop libglib-2.0.so.0.3800.2 [.] 0x000000000001d76c
  111. 0.03% kworker/0:1 [kernel.kallsyms] [k] _aesni_enc4
  112. 0.02% X Xorg [.] 0x000000000010ec3c
  113. 0.02% btrfs-cleaner [kernel.kallsyms] [k] balance_dirty_pages_ratelimited
  114. 0.02% irq/46-iwlwifi [kernel.kallsyms] [k] iwl_trans_pcie_read32
  115. 0.02% btrfs-cleaner [kernel.kallsyms] [k] ondemand_readahead
  116. 0.02% btrfs-cleaner [kernel.kallsyms] [k] defrag_lookup_extent
  117. 0.02% swapper [kernel.kallsyms] [k] menu_select
  118. 0.02% btrfs-transacti [kernel.kallsyms] [k] __crc32c_le
  119. 0.02% X intel_drv.so [.] 0x00000000000c3698
  120. 0.02% btrfs-cleaner [kernel.kallsyms] [k] reserve_metadata_bytes
  121. 0.02% btrfs-cleaner [kernel.kallsyms] [k] btrfs_delalloc_reserve_space
  122. 0.02% kwin i965_dri.so [.] 0x0000000000033bf4
  123. 0.02% kwin libQtCore.so.4.8.5 [.] 0x00000000000de1b2
  124. 0.01% btrfs-delalloc- [kernel.kallsyms] [k] deflate_fast
  125. 0.01% btrfs-cleaner [kernel.kallsyms] [k] btrfs_free_reserved_data_space
  126. 0.01% btrfs-cleaner [kernel.kallsyms] [k] block_rsv_add_bytes
  127. 0.01% X [kernel.kallsyms] [k] sock_poll
  128. 0.01% swapper [kernel.kallsyms] [k] ktime_get
  129. 0.01% X [kernel.kallsyms] [k] _raw_spin_lock_irqsave
  130. 0.01% btrfs-cleaner [kernel.kallsyms] [k] block_rsv_release_bytes
  131. 0.01% btrfs-cleaner [kernel.kallsyms] [k] btrfs_delalloc_release_metadata
  132. 0.01% btrfs-cleaner [kernel.kallsyms] [k] debug_mutex_unlock
  133. 0.01% swapper [kernel.kallsyms] [k] _raw_spin_lock_irqsave
  134. 0.01% btrfs-cleaner [kernel.kallsyms] [k] page_cache_sync_readahead
  135. 0.01% swapper [kernel.kallsyms] [k] i915_read32
  136. 0.01% X [kernel.kallsyms] [k] fget_light
  137. 0.01% X [kernel.kallsyms] [k] fput
  138. 0.01% kwin libc-2.18.so [.] _int_malloc
  139. 0.01% kwin libkdeinit4_kwin.so [.] 0x00000000000c90d9
  140. 0.01% kworker/0:1 [kernel.kallsyms] [k] crypt_convert
  141. 0.01% swapper [kernel.kallsyms] [k] int_sqrt
  142. 0.01% chromium libc-2.18.so [.] _int_free
  143. 0.01% btrfs-cleaner [kernel.kallsyms] [k] apic_timer_interrupt
  144. 0.01% btrfs-delalloc- [kernel.kallsyms] [k] lzo1x_1_do_compress
  145. 0.01% swapper [kernel.kallsyms] [k] rcu_try_advance_all_cbs
  146. 0.01% btrfs-delalloc- [kernel.kallsyms] [k] compress_block
  147. 0.01% btrfs-delalloc- [kernel.kallsyms] [k] pqdownheap
  148. 0.01% kwin libc-2.18.so [.] __memcpy_sse2_unaligned
  149. 0.01% X [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
  150. 0.01% btrfs-cleaner [kernel.kallsyms] [k] hrtimer_interrupt
  151. 0.01% plasma-desktop libQtScript.so.4.8.5 [.] 0x0000000000177d36
  152. 0.01% kworker/0:1 [kernel.kallsyms] [k] aesni_xts_crypt8
  153. 0.01% kworker/5:2 [kernel.kallsyms] [k] _aesni_enc4
  154. 0.01% plasma-desktop libQtCore.so.4.8.5 [.] 0x00000000001aa22b
  155. 0.01% plasma-desktop libpthread-2.18.so [.] __pthread_mutex_unlock_usercnt
  156. 0.01% swapper [kernel.kallsyms] [k] __tick_nohz_idle_enter
  157. 0.01% plasma-desktop libpthread-2.18.so [.] pthread_mutex_lock
  158. 0.01% X [kernel.kallsyms] [k] do_select
  159. 0.01% btrfs-delalloc- [kernel.kallsyms] [k] build_tree
  160. 0.01% chromium chromium [.] WTF::HashTable<WTF::AtomicString, WTF::AtomicString, WTF::IdentityExtractor, WTF::AtomicStringHash, WTF::HashTraits<WTF::AtomicString>, WTF::HashTraits<WTF::AtomicString> >::deallocateTable(WTF::AtomicString*, unsigned int)
  161. 0.01% X [kernel.kallsyms] [k] unix_poll
  162. 0.01% chromium libc-2.18.so [.] free
  163. 0.00% swapper [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
  164. 0.00% btrfs-cleaner [kernel.kallsyms] [k] global_dirty_limits
  165. 0.00% btrfs-cleaner [kernel.kallsyms] [k] __sb_end_write
  166. 0.00% btrfs-cleaner [kernel.kallsyms] [k] global_dirtyable_memory
  167. 0.00% btrfs-cleaner [kernel.kallsyms] [k] drop_outstanding_extent
  168. 0.00% btrfs-cleaner [kernel.kallsyms] [k] kfree
  169. 0.00% btrfs-cleaner [kernel.kallsyms] [k] max_sane_readahead
  170. 0.00% btrfs-delalloc- [kernel.kallsyms] [k] zlib_tr_tally
  171. 0.00% chromium libc-2.18.so [.] malloc_consolidate
  172. 0.00% konsole libpthread-2.18.so [.] __pthread_mutex_unlock_usercnt
  173. 0.00% kwin libc-2.18.so [.] malloc
  174. 0.00% btrfs-delalloc- [kernel.kallsyms] [k] send_tree
  175. 0.00% chromium chromium [.] v8::internal::FlexibleBodyVisitor<v8::internal::MarkCompactMarkingVisitor, v8::internal::FixedArray::BodyDescriptor, void>::Visit(v8::internal::Map*, v8::internal::HeapObject*)
  176. 0.00% swapper [kernel.kallsyms] [k] rcu_eqs_enter_common.isra.49
  177. 0.00% swapper [kernel.kallsyms] [k] cpuidle_enter_state
  178. 0.00% swapper [kernel.kallsyms] [k] irq_entries_start
  179. 0.00% konsole [kernel.kallsyms] [k] fget_light
  180. 0.00% X [kernel.kallsyms] [k] idle_cpu
  181. 0.00% swapper [kernel.kallsyms] [k] __update_cpu_load
  182. 0.00% swapper [kernel.kallsyms] [k] __schedule
  183. 0.00% swapper [kernel.kallsyms] [k] rcu_eqs_exit_common.isra.50
  184. 0.00% X [kernel.kallsyms] [k] find_busiest_group
  185. 0.00% plasma-desktop [kernel.kallsyms] [k] __mutex_lock_slowpath
  186. 0.00% swapper [kernel.kallsyms] [k] timerqueue_add
  187. 0.00% X [kernel.kallsyms] [k] clear_page_c_e
  188. 0.00% kwin libQtGui.so.4.8.5 [.] QRegion::~QRegion()
  189. 0.00% plasma-desktop [kernel.kallsyms] [k] sock_poll
  190. 0.00% swapper [kernel.kallsyms] [k] get_next_timer_interrupt
  191. 0.00% swapper [kernel.kallsyms] [k] __switch_to
  192. 0.00% btrfs-cleaner [kernel.kallsyms] [k] set_extent_defrag
  193. 0.00% btrfs-cleaner [kernel.kallsyms] [k] lookup_extent_mapping
  194. 0.00% btrfs-cleaner [kernel.kallsyms] [k] mutex_lock
  195. 0.00% btrfs-cleaner [kernel.kallsyms] [k] update_vsyscall
  196. 0.00% btrfs-cleaner [kernel.kallsyms] [k] btrfs_requeue_inode_defrag
  197. 0.00% swapper [kernel.kallsyms] [k] arch_cpu_idle_exit
  198. 0.00% X [kernel.kallsyms] [k] __mem_cgroup_uncharge_common
  199. 0.00% swapper [kernel.kallsyms] [k] cpuidle_idle_call
  200. 0.00% konsole [kernel.kallsyms] [k] sock_poll
  201. 0.00% kwin libxcb.so.1.1.0 [.] 0x000000000000ba00
  202. 0.00% btrfs-transacti [kernel.kallsyms] [k] btrfs_put_block_group
  203. 0.00% btrfs-endio-wri [kernel.kallsyms] [k] end_compressed_bio_write
  204. 0.00% plasma-desktop libc-2.18.so [.] malloc
  205. 0.00% kworker/0:1 [kernel.kallsyms] [k] blkcipher_walk_next
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