[Ocfs2-devel] Profile data of the OCFS2 svn 1022 by running
iozone
Ling, Xiaofeng
xiaofeng.ling at intel.com
Wed Jun 9 14:53:19 CDT 2004
The follow is result from running test cases on the ocfs2 revision =
before changing the dir format.
It shows the ocfs_bh_sem_lookup's cost.
--------
samples % app name symbol name
38650 0.1841 vmlinux ocfs_bh_sem_lookup
1081 0.0051 vmlinux ocfs_count_bits
369 0.0018 vmlinux ocfs_read_bhs
43 2.0e-04 vmlinux ocfs_bh_sem_down
41 2.0e-04 vmlinux ocfs_end_buffer_io_sync
38 1.8e-04 vmlinux ocfs_bh_sem_unlock
22 1.0e-04 vmlinux ocfs_bh_sem_put
20 9.5e-05 vmlinux ocfs_bh_sem_get
16 7.6e-05 vmlinux ocfs_inode_hash_destroy
13 6.2e-05 vmlinux ocfs_uninitialize_bitmap
12 5.7e-05 vmlinux ocfs_inode_hash_init
12 5.7e-05 vmlinux ocfs_write_bhs
10 4.8e-05 vmlinux ocfs_update_publish_map
9 4.3e-05 vmlinux ocfs_bh_sem_lock
8 3.8e-05 vmlinux ocfs_clear_bits
7 3.3e-05 vmlinux ocfs_bh_sem_lock_modify
7 3.3e-05 vmlinux ocfs_sync_local_to_main
6 2.9e-05 vmlinux ocfs_clear_buffer_modified
6 2.9e-05 vmlinux ocfs_initialize_osb
6 2.9e-05 vmlinux ocfs_lookup_extent_map_entry
5 2.4e-05 vmlinux ocfs_acquire_lock
5 2.4e-05 vmlinux ocfs_add_extent_map_entry
5 2.4e-05 vmlinux ocfs_mount_volume
5 2.4e-05 vmlinux ocfs_set_bits
4 1.9e-05 vmlinux ocfs_chk_update_config
4 1.9e-05 vmlinux ocfs_disk_release_lock
4 1.9e-05 vmlinux ocfs_free_vol_block
4 1.9e-05 vmlinux ocfs_lookup_file_allocation
4 1.9e-05 vmlinux ocfs_volume_thread
3 1.4e-05 vmlinux ocfs_add_to_bitmap_free_head
3 1.4e-05 vmlinux ocfs_alloc_count_bits
3 1.4e-05 vmlinux ocfs_bmap
3 1.4e-05 vmlinux ocfs_mknod_locked
3 1.4e-05 vmlinux ocfs_read_dirnode
3 1.4e-05 vmlinux ocfs_read_super
2 9.5e-06 vmlinux ocfs_acquire_lockres
2 9.5e-06 vmlinux ocfs_clear_local_alloc
2 9.5e-06 vmlinux ocfs_dismount_volume
2 9.5e-06 vmlinux ocfs_inode_hash_insert
2 9.5e-06 vmlinux ocfs_inode_notify_open
2 9.5e-06 vmlinux ocfs_insert_file
2 9.5e-06 vmlinux ocfs_populate_inode
2 9.5e-06 vmlinux ocfs_process_bitmap_free_head
2 9.5e-06 vmlinux ocfs_update_disk_lock
2 9.5e-06 vmlinux ocfs_update_lockres
1 4.8e-06 vmlinux __ocfs_inode_hash_lookup
1 4.8e-06 vmlinux ocfs_alloc_new_window
1 4.8e-06 vmlinux ocfs_allocate_extent
1 4.8e-06 vmlinux ocfs_clear_inode
1 4.8e-06 vmlinux ocfs_commit_cache
1 4.8e-06 vmlinux ocfs_commit_trans
1 4.8e-06 vmlinux ocfs_file_open
1 4.8e-06 vmlinux ocfs_find_clear_bits
1 4.8e-06 vmlinux ocfs_find_files_on_disk
1 4.8e-06 vmlinux ocfs_find_space_from_local
1 4.8e-06 vmlinux ocfs_iget
1 4.8e-06 vmlinux ocfs_init_lockres
1 4.8e-06 vmlinux ocfs_init_udp_sock
1 4.8e-06 vmlinux ocfs_inode_hash_bind
1 4.8e-06 vmlinux ocfs_inode_init_private
1 4.8e-06 vmlinux ocfs_insert_dir_node
1 4.8e-06 vmlinux ocfs_journal_dirty
1 4.8e-06 vmlinux ocfs_journal_init
1 4.8e-06 vmlinux ocfs_journal_new_file_search
1 4.8e-06 vmlinux ocfs_journal_set_mounted
1 4.8e-06 vmlinux ocfs_proc_add_volume
1 4.8e-06 vmlinux ocfs_recover_oin_locks
1 4.8e-06 vmlinux ocfs_recv_udp_msg
1 4.8e-06 vmlinux ocfs_release_lock
1 4.8e-06 vmlinux ocfs_sync_blockdev
1 4.8e-06 vmlinux ocfs_update_extent_map
1 4.8e-06 vmlinux ocfs_write_volcfg_header
>-----Original Message-----
>From: ocfs2-devel-bounces at oss.oracle.com=20
>[mailto:ocfs2-devel-bounces at oss.oracle.com] On Behalf Of Zhang, Sonic
>Sent: 2004=C4=EA6=D4=C29=C8=D5 13:01
>To: Ocfs2-Devel
>Subject: [Ocfs2-devel] Profile data of the OCFS2 svn 1022 by=20
>running iozone
>
>Hi,
>
> We profiled the OCFS2 (svn 1022) on IA32 and kernel 2.6.6-mm5.
>The profile tool is oprofile, which is supported in kernel. The work
>load tool is iozone.3.217.
>
>The result shows the critical route, which consumes most of=20
>the CPU time
>slices when the iozone benchmark runs.
>ocfs_get_block() -> ocfs_lookup_file_allocation() ->
>ocfs_lookup_extent_map_entry() -> ocfs_extent_map_lookup()
>
>If we want to increase the throughput of file read operation, we'd
>better focus on this critical route.
>
>
>Samples app name symbol name
>----------------------------------------------------------------
>16180 ocfs ocfs_lookup_extent_map_entry
>12840 ocfs ocfs_get_block
>9091 ocfs ocfs_extent_map_lookup
>5089 ocfs ocfs_lookup_file_allocation
>2558 ocfs ocfs_count_bits
>1187 ocfs ocfs_journal_new_file_search
>811 ocfs ocfs_bh_sem_lookup
>717 ocfs ocfs_extend_file
>350 ocfs ocfs_commit_write
>345 ocfs ocfs_readpage
>254 ocfs ocfs_file_read
>138 ocfs ocfs_file_write
>125 ocfs ocfs_test_allocatable
>122 ocfs ocfs_find_clear_bits
>120 ocfs ocfs_prepare_write
>107 ocfs ocfs_writepage
>94 ocfs ocfs_start_trans
>91 ocfs ocfs_read_bhs
>72 ocfs ocfs_journal_access
>51 ocfs ocfs_acquire_lock
>47 ocfs ocfs_commit_trans
>42 ocfs ocfs_clear_bits
>28 ocfs ocfs_update_publish_map
>25 ocfs ocfs_update_lockres
>23 ocfs ocfs_set_bits
>19 ocfs ocfs_acquire_lockres
>19 ocfs ocfs_bh_sem_put
>19 ocfs ocfs_update_disk_lock
>18 ocfs ocfs_bh_sem_unlock
>14 ocfs ocfs_bh_sem_lock
>14 ocfs ocfs_bh_sem_lock_modify
>14 ocfs ocfs_clear_buffer_modified
>14 ocfs ocfs_journal_add_lock
>13 ocfs ocfs_allocate_extent
>13 ocfs ocfs_journal_dirty
>13 ocfs ocfs_release_lockres
>12 ocfs ocfs_bh_sem_down
>11 ocfs ocfs_volume_thread
>10 ocfs ocfs_put_inode
>9 ocfs ocfs_bh_sem_up
>9 ocfs ocfs_extent_map_add
>9 ocfs ocfs_handle_unlock_inodes
>8 ocfs ocfs_bh_sem_get
>8 ocfs ocfs_write_bhs
>7 ocfs ocfs_find_space
>7 ocfs ocfs_foreach_child
>7 ocfs ocfs_inc_inode_seq
>7 ocfs ocfs_nm_heart_beat
>6 ocfs ocfs_break_cache_lock_zap_buffers
>6 ocfs ocfs_coalesce_extent_map_entry
>6 ocfs ocfs_journal_release_locks
>5 ocfs ocfs_dentry_revalidate
>5 ocfs ocfs_file_open
>4 ocfs ocfs_release_lock
>3 ocfs ocfs_add_to_bitmap_free_head
>3 ocfs ocfs_commit_cache
>3 ocfs ocfs_find_contiguous_space_from_bitmap
>3 ocfs ocfs_get_leaf_extent
>3 ocfs ocfs_update_extent_map
>2 ocfs ocfs_add_extent_map_entry
>2 ocfs ocfs_bmap
>2 ocfs ocfs_extent_map_destroy
>2 ocfs ocfs_handle_add_inode
>2 ocfs ocfs_init_timeout
>2 ocfs ocfs_inode_notify_open
>2 ocfs ocfs_wait_for_readonly_drop
>1 ocfs ocfs_add_entry
>1 ocfs ocfs_alloc_new_window
>1 ocfs ocfs_alloc_node_block
>1 ocfs ocfs_create
>1 ocfs ocfs_disk_release_lock
>1 ocfs ocfs_extent_map_init
>1 ocfs ocfs_file_release
>1 ocfs ocfs_find_extents_of_system_file
>1 ocfs ocfs_flush
>1 ocfs ocfs_free_disk_bitmap
>1 ocfs ocfs_inode_fill_ext_map
>1 ocfs ocfs_local_find_clear_bits
>1 ocfs ocfs_mknod
>1 ocfs ocfs_mknod_locked
>1 ocfs ocfs_set_timeout
>1 ocfs ocfs_update_master_on_open
>1 ocfs ocfs_wait_for_lock_release
>
>
>
>*********************************************
>Sonic Zhang
>Software Engineer
>Intel China Software Lab
>Tel: (086)021-52574545-1667
>iNet: 752-1667
>*********************************************=20
>
>_______________________________________________
>Ocfs2-devel mailing list
>Ocfs2-devel at oss.oracle.com
>http://oss.oracle.com/mailman/listinfo/ocfs2-devel
>
>
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