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    Subject[RESEND] tuning linux for high network performance?
    Date
    > I've got this video server serving video for VoD. problem is the P4 1.8
    > seems to be maxed out by a few system calls. The below output is for ~50
    > clients streaming at ~4.5Mbps. if trying to increase this to ~70, the CPU
    > maxes out.
    >
    > Does anyone have an idea?

    ...adding the whole profile output - sorted by the first column this time...

    905182 total 0.4741
    121426 csum_partial_copy_generic 474.3203
    93633 default_idle 1800.6346
    74665 do_wp_page 111.1086
    65857 ide_intr 184.9916
    53636 handle_IRQ_event 432.5484
    21973 do_softirq 107.7108
    20498 e1000_intr 244.0238
    19800 do_page_fault 16.8081
    19395 skb_clone 45.7429
    14564 system_call 260.0714
    13592 kfree 89.4211
    13557 skb_release_data 116.8707
    13025 ide_do_request 17.6970
    12988 do_rw_disk 8.4557
    11841 tcp_sendmsg 2.6814
    11720 nf_hook_slow 29.0099
    11712 tcp_poll 34.0465
    10688 schedule 7.8588
    10386 __kfree_skb 34.1645
    10052 ipt_do_table 10.1741
    8286 fget 115.0833
    7436 tcp_v4_send_check 44.2619
    7191 e1000_clean_tx_irq 16.6458
    7031 kmalloc 18.1211
    6610 tcp_write_xmit 9.3892
    6241 tcp_clean_rtx_queue 8.0425
    6232 ip_conntrack_find_get 51.9333
    6140 ide_dmaproc 8.4341
    6125 tcp_packet 14.0482
    5858 qdisc_restart 15.4158
    5734 e1000_xmit_frame 5.6660
    5709 tcp_v4_rcv 3.7363
    5703 sys_rt_sigprocmask 11.4060
    5445 tcp_transmit_skb 3.7500
    5273 alloc_skb 11.8761
    4961 ide_wait_stat 18.7917
    4790 ip_ct_find_proto 44.3519
    4782 add_timer 18.3923
    4760 ip_ct_refresh 29.7500
    4729 do_anonymous_page 17.6455
    4616 e1000_clean_rx_irq 4.9106
    4464 do_gettimeofday 37.2000
    4359 flush_tlb_page 38.9196
    4209 ip_finish_output2 16.4414
    3731 get_hash_table 23.3188
    3714 eth_type_trans 21.1023
    3712 __make_request 2.3375
    3680 __ip_conntrack_find 12.7778
    3480 ip_route_input 9.1579
    3363 kfree_skbmem 32.3365
    3295 __switch_to 15.2546
    3205 fput 13.1352
    3143 rmqueue 5.3452
    3137 ip_conntrack_in 5.0272
    3008 sync_timers 250.6667
    2861 sock_wfree 47.6833
    2580 ip_queue_xmit 2.0347
    2578 process_timeout 26.8542
    2577 netif_rx 6.1357
    2555 get_user_pages 6.2623
    2504 sock_poll 62.6000
    2346 ide_build_sglist 5.6394
    2316 brw_kiovec 2.5619
    2256 csum_partial 7.8333
    2251 ip_queue_xmit2 4.2958
    2198 start_request 4.0404
    2186 dev_queue_xmit 2.7462
    2167 timer_bh 2.2203
    2162 __free_pages_ok 3.1608
    2157 zap_page_range 2.4400
    1942 mark_dirty_kiobuf 21.1087
    1733 process_backlog 5.9349
    1719 tcp_rcv_established 0.8493
    1689 add_wait_queue 32.4808
    1650 mod_timer 6.1567
    1603 wait_kio 17.4239
    1575 net_rx_action 4.8611
    1554 get_pid 4.0052
    1434 lru_cache_add 12.8036
    1429 handle_mm_fault 7.7663
    1397 ip_local_deliver_finish 4.5357
    1357 nf_iterate 10.2803
    1350 e1000_alloc_rx_buffers 5.2734
    1298 do_select 2.5155
    1268 unlock_page 12.1923
    1209 submit_bh 10.7946
    1184 add_entropy_words 5.9200
    1175 __brelse 36.7188
    1125 __pollwait 7.8125
    1108 shrink_list 5.7708
    1099 generic_make_request 3.6151
    1080 __free_pages 33.7500
    1052 tcp_ack 1.2524
    1020 ip_rcv 1.0851
    986 raid0_make_request 2.9345
    898 ext3_direct_io_get_block 4.7766
    883 pfifo_fast_dequeue 11.6184
    863 sys_gettimeofday 5.5321
    828 tcp_ack_update_window 3.9808
    813 ipt_local_out_hook 7.8173
    761 __lru_cache_del 6.5603
    756 sys_write 2.9531
    742 __rdtsc_delay 26.5000
    730 uhci_interrupt 3.3182
    718 net_tx_action 2.5643
    710 batch_entropy_store 3.9444
    701 add_timer_randomness 3.3066
    666 tasklet_hi_action 4.1625
    662 sys_nanosleep 1.7796
    635 set_page_dirty 5.4741
    627 __tcp_data_snd_check 3.1350
    611 netif_receive_skb 1.9094
    601 pfifo_fast_enqueue 5.3661
    590 del_timer_sync 4.3382
    587 lru_cache_del 26.6818
    574 get_unmapped_area 2.1103
    561 wait_for_tcp_memory 0.7835
    557 ip_refrag 5.8021
    546 ip_conntrack_local 6.2045
    515 sys_select 0.4486
    507 __tcp_select_window 2.2634
    481 ext3_get_branch 2.2689
    433 ip_output 1.2301
    389 ip_confirm 9.7250
    384 find_vma 4.5714
    379 set_bh_page 9.4750
    376 tcp_v4_do_rcv 1.0108
    370 tcp_ack_no_tstamp 1.4453
    368 batch_entropy_process 2.0000
    365 ide_build_dmatable 1.1551
    364 ip_rcv_finish 0.7696
    363 kmem_cache_free 2.8359
    362 __wake_up 1.8854
    338 ext3_get_block_handle 0.5152
    336 inet_sendmsg 5.2500
    318 bh_action 2.3382
    298 tcp_data_queue 0.1064
    272 md_make_request 2.6154
    272 ext3_block_to_path 0.9714
    248 sock_sendmsg 1.8235
    244 __alloc_pages 0.6932
    238 kmem_cache_alloc 0.7532
    226 __free_pte 3.1389
    225 tcp_ack_probe 1.3720
    224 __run_task_queue 2.0741
    213 ide_get_queue 5.3250
    209 __ip_ct_find_proto 4.3542
    202 get_sample_stats 1.7414
    195 tcp_write_space 1.6810
    185 schedule_timeout 1.1859
    184 do_signal 0.2992
    182 ipt_hook 4.5500
    171 generic_direct_IO 0.5552
    168 can_share_swap_page 1.8261
    157 ip_local_deliver 0.3965
    155 get_conntrack_index 2.7679
    145 tcp_push_one 0.5664
    145 ide_set_handler 1.2500
    144 pipe_poll 1.4400
    143 max_select_fd 0.8938
    139 pte_alloc 0.5792
    138 del_timer 1.6429
    136 sock_write 0.7234
    131 poll_freewait 1.9265
    131 getblk 1.7237
    130 send_sig_info 0.8553
    128 __release_sock 1.4545
    125 ret_from_sys_call 7.3529
    120 ext3_direct_IO 0.1807
    118 tcp_pkt_to_tuple 3.6875
    117 find_vma_prev 0.6648
    114 do_no_page 0.2298
    112 tqueue_bh 4.0000
    112 follow_page 1.0769
    110 bread 1.1000
    108 e1000_rx_checksum 1.2273
    107 generic_file_direct_IO 0.1938
    102 add_interrupt_randomness 2.5500
    97 remove_wait_queue 1.7321
    96 mark_page_accessed 2.0000
    91 kill_something_info 0.2645
    85 invert_tuple 1.9318
    81 exit_notify 0.1151
    81 cpu_idle 0.9643
    80 tcp_new_space 0.6061
    79 nf_register_queue_handler 0.5197
    75 uhci_remove_pending_qhs 0.3906
    69 pdc202xx_dmaproc 0.1250
    68 sys_read 0.2656
    68 nf_reinject 0.1491
    66 map_user_kiobuf 0.2619
    65 find_vma_prepare 0.6500
    64 generic_file_read 0.2353
    61 check_pgt_cache 2.5417
    60 free_pages 1.8750
    58 error_code 0.9667
    57 vm_enough_memory 0.5481
    56 __delay 1.4000
    55 __const_udelay 1.0577
    53 tcp_ioctl 0.0908
    53 journal_commit_transaction 0.0132
    53 do_munmap 0.0901
    52 _alloc_pages 2.1667
    51 uhci_finish_completion 0.4554
    51 credit_entropy_store 1.1591
    50 rh_report_status 0.1953
    50 free_page_and_swap_cache 0.8929
    49 sys_rt_sigsuspend 0.1750
    49 nr_free_pages 0.6125
    49 do_mmap_pgoff 0.0394
    48 e1000_update_stats 0.0307
    48 do_get_write_access 0.0366
    48 __journal_file_buffer 0.0916
    48 __get_free_pages 2.0000
    48 .text.lock.e1000_main 1.7143
    47 expand_kiobuf 0.3092
    46 uhci_free_pending_qhs 0.4600
    46 tcp_parse_options 0.0833
    46 kmem_cache_size 5.7500
    45 rb_erase 0.2083
    44 unmap_kiobuf 0.6111
    41 tcp_cwnd_application_limited 0.3106
    41 rh_int_timer_do 0.1165
    41 init_or_cleanup 0.1424
    40 sync_unlocked_inodes 0.0901
    40 init_buffer 1.4286
    39 .text.lock.ip_input 1.0000
    38 vma_merge 0.1301
    38 pfifo_fast_requeue 0.6786
    38 ip_conntrack_get 0.9500
    38 dev_watchdog 0.2209
    37 .text.lock.ip_output 0.2803
    36 do_check_pgt_cache 0.1731
    35 tcp_retrans_try_collapse 0.0576
    35 journal_add_journal_head 0.1306
    34 ext3_get_inode_loc 0.0914
    33 journal_write_revoke_records 0.1964
    32 fsync_buffers_list 0.0860
    31 filemap_fdatasync 0.1615
    31 __pmd_alloc 1.5500
    30 sys_wait4 0.0305
    30 restore_sigcontext 0.0949
    29 sys_sigreturn 0.1169
    28 tcp_fastretrans_alert 0.0224
    28 do_settimeofday 0.1628
    28 do_ide_request 1.4000
    27 unmap_fixup 0.0785
    27 find_extend_vma 0.1350
    27 eth_header_parse 0.8438
    27 current_capacity 0.6750
    26 save_i387 0.0478
    26 __journal_clean_checkpoint_list 0.2407
    25 update_atime 0.3125
    25 tcp_v4_destroy_sock 0.0718
    25 link_path_walk 0.0102
    25 buffer_insert_inode_queue 0.2841
    25 __journal_unfile_buffer 0.0665
    24 sys_mmap2 0.1622
    24 rh_send_irq 0.0896
    24 rb_insert_color 0.1224
    24 ext3_do_update_inode 0.0261
    24 balance_dirty_state 0.3158
    24 add_wait_queue_exclusive 0.4615
    24 __try_to_free_cp_buf 0.4000
    23 free_kiobuf_bhs 0.2396
    22 tcp_rcv_synsent_state_process 0.0169
    22 sys_munmap 0.2619
    22 start_this_handle 0.0598
    22 sock_rfree 1.3750
    22 setup_sigcontext 0.0743
    22 flush_tlb_mm 0.1964
    22 do_exit 0.0301
    22 alloc_kiobuf_bhs 0.1170
    22 __rb_erase_color 0.0567
    21 tcp_mem_schedule 0.0477
    21 setup_frame 0.0482
    21 __generic_copy_to_user 0.3500
    20 unlock_buffer 0.3125
    20 journal_write_metadata_buffer 0.0240
    20 d_lookup 0.0704
    20 copy_skb_header 0.0980
    19 sync_old_buffers 0.1218
    19 sock_mmap 0.4750
    19 skb_split 0.0344
    19 select_bits_alloc 0.7917
    19 get_info_ptr 0.2065
    17 tcp_write_wakeup 0.0363
    17 ret_from_exception 0.6800
    17 kiobuf_wait_for_io 0.1062
    17 journal_unlock_journal_head 0.1518
    17 bad_signal 0.1250
    16 tcp_probe_timer 0.0952
    16 tcp_close 0.0083
    16 ip_route_output_slow 0.0099
    16 __mark_inode_dirty 0.0952
    16 .text.lock.timer 0.1250
    16 .text.lock.tcp 0.0152
    15 journal_cancel_revoke 0.0765
    15 ext3_bmap 0.1500
    15 do_fork 0.0074
    15 blk_grow_request_list 0.0833
    14 tcp_v4_conn_request 0.0145
    14 sync_supers 0.0507
    14 log_start_commit 0.0946
    14 lock_vma_mappings 0.3500
    14 journal_dirty_metadata 0.0354
    14 file_read_actor 0.0625
    14 __insert_vm_struct 0.1400
    13 tcp_time_to_recover 0.0290
    13 sys_ioctl 0.0259
    13 lookup_swap_cache 0.1625
    13 ip_build_xmit_slow 0.0099
    13 invalidate_inode_pages 0.0739
    13 ext3_dirty_inode 0.0478
    13 bmap 0.2955
    12 tcp_collapse 0.0143
    12 sys_socketcall 0.0234
    12 put_filp 0.1364
    12 make_pages_present 0.0968
    12 journal_get_write_access 0.1304
    12 generic_file_write 0.0061
    12 e1000_ioctl 0.3333
    11 uhci_transfer_result 0.0316
    11 tcp_try_to_open 0.0348
    11 tcp_recvmsg 0.0045
    11 tcp_create_openreq_child 0.0092
    11 sys_kill 0.1250
    11 schedule_tail 0.0786
    11 osync_buffers_list 0.0859
    11 journal_stop 0.0255
    11 do_sigpending 0.0887
    10 tcp_unhash 0.0397
    10 tcp_send_probe0 0.0424
    10 tcp_rcv_state_process 0.0040
    10 sys_poll 0.0138
    10 inet_shutdown 0.0208
    10 execute_drive_cmd 0.0221
    10 __put_unused_buffer_head 0.1136
    9 tcp_write_timer 0.0395
    9 tcp_send_skb 0.0191
    9 tcp_make_synack 0.0082
    9 set_buffer_flushtime 0.4500
    9 raid0_status 0.2045
    9 copy_page_range 0.0205
    8 kupdate 0.0274
    8 journal_get_descriptor_buffer 0.0741
    8 get_empty_filp 0.0253
    8 ext3_write_super 0.0741
    8 count_active_tasks 0.1111
    8 atomic_dec_and_lock 0.1111
    8 __lock_page 0.0400
    8 __journal_remove_journal_head 0.0250
    8 __ip_conntrack_confirm 0.0115
    8 __block_prepare_write 0.0105
    7 tcp_invert_tuple 0.2188
    7 ports_active 0.1346
    7 pipe_write 0.0112
    7 kjournald 0.0130
    7 handle_signal 0.0273
    7 grow_buffers 0.0254
    7 ext3_get_block 0.0700
    7 balance_classzone 0.0151
    7 __jbd_kmalloc 0.0625
    7 .text.lock.swap 0.1296
    6 vsnprintf 0.0057
    6 tcp_v4_send_reset 0.0176
    6 tcp_accept 0.0105
    6 sleep_on 0.0500
    6 select_bits_free 0.3750
    6 pipe_read 0.0118
    6 number 0.0055
    6 ip_route_output_key 0.0165
    6 inet_accept 0.0136
    6 get_unused_buffer_head 0.0375
    6 dput 0.0176
    6 cleanup_rbuf 0.0273
    6 __journal_remove_checkpoint 0.0556
    6 __journal_drop_transaction 0.0087
    6 __find_get_page 0.0938
    6 .text.lock.netfilter 0.0260
    5 vmtruncate_list 0.0625
    5 vfs_permission 0.0208
    5 tcp_v4_hnd_req 0.0147
    5 tcp_init_cwnd 0.0500
    5 tcp_check_urg 0.0158
    5 tcp_check_sack_reneging 0.0240
    5 sys_fork 0.1786
    5 sock_setsockopt 0.0034
    5 sock_init_data 0.0161
    5 sock_def_readable 0.0521
    5 release_x86_irqs 0.0595
    5 release_task 0.0109
    5 refile_buffer 0.1389
    5 pipe_release 0.0368
    5 path_init 0.0129
    5 nr_free_buffer_pages 0.0625
    5 mprotect_fixup 0.0043
    5 log_space_left 0.1562
    5 ll_rw_block 0.0119
    5 journal_start 0.0272
    5 init_bh 0.2083
    5 get_zeroed_page 0.1389
    5 ext3_commit_write 0.0078
    5 e1000_tx_timeout 0.2500
    5 do_poll 0.0227
    5 bdfind 0.1389
    5 add_keyboard_randomness 0.1250
    5 __wait_on_buffer 0.0338
    5 __vma_link 0.0284
    5 __tcp_mem_reclaim 0.0595
    5 __rb_rotate_left 0.0781
    4 write_profile 0.0244
    4 tcp_v4_syn_recv_sock 0.0064
    4 tcp_v4_search_req 0.0278
    4 tcp_v4_route_req 0.0192
    4 tcp_v4_init_sock 0.0169
    4 tcp_cwnd_restart 0.0263
    4 tcp_check_req 0.0043
    4 tcp_check_reno_reordering 0.0500
    4 sys_mprotect 0.0078
    4 strncpy_from_user 0.0500
    4 sock_def_wakeup 0.0625
    4 sock_alloc 0.0208
    4 skb_copy_datagram_iovec 0.0071
    4 lookup_mnt 0.0476
    4 locks_remove_posix 0.0096
    4 invalidate_inode_buffers 0.0370
    4 init_conntrack 0.0043
    4 halfMD4Transform 0.0068
    4 find_or_create_page 0.0164
    4 filp_close 0.0238
    4 ext3_reserve_inode_write 0.0233
    4 ext3_find_goal 0.0213
    4 do_fcntl 0.0059
    4 dnotify_flush 0.0345
    4 d_alloc 0.0105
    4 add_blkdev_randomness 0.0526
    4 _stext 0.0500
    4 __journal_insert_checkpoint 0.0167
    4 __find_lock_page_helper 0.0323
    4 .text.lock.inode 0.0086
    3 wait_for_tcp_connect 0.0054
    3 tcp_v4_get_port 0.0045
    3 tcp_put_port 0.0150
    3 tcp_init_xmit_timers 0.0221
    3 tcp_clear_xmit_timers 0.0234
    3 tcp_add_reno_sack 0.0357
    3 sys_sched_getscheduler 0.0288
    3 sys_fcntl64 0.0221
    3 sys_accept 0.0119
    3 sock_ioctl 0.0268
    3 sock_fasync 0.0038
    3 sock_def_error_report 0.0312
    3 rt_check_expire__thr 0.0077
    3 rh_init_int_timer 0.0278
    3 reset_hc 0.0167
    3 register_gifconf 0.0938
    3 read_chan 0.0016
    3 put_unused_buffer_head 0.0833
    3 pipe_ioctl 0.0375
    3 permission 0.0227
    3 open_namei 0.0024
    3 mm_release 0.0833
    3 locks_remove_flock 0.0163
    3 ksoftirqd 0.0153
    3 journal_file_buffer 0.0682
    3 iput 0.0060
    3 ip_build_and_send_pkt 0.0067
    3 interruptible_sleep_on 0.0250
    3 inet_sock_destruct 0.0080
    3 inet_ioctl 0.0079
    3 inet_create 0.0048
    3 immediate_bh 0.1071
    3 get_unused_fd 0.0077
    3 get_empty_inode 0.0179
    3 flush_tlb_all_ipi 0.0395
    3 filemap_fdatawait 0.0214
    3 fd_install 0.0441
    3 ext3_prepare_write 0.0056
    3 ext3_mark_iloc_dirty 0.0357
    3 e1000_watchdog 0.0064
    3 e1000_read_phy_reg 0.0179
    3 d_invalidate 0.0214
    3 create_buffers 0.0125
    3 cp_new_stat64 0.0095
    3 copy_mm 0.0040
    3 copy_files 0.0043
    3 bdget 0.0078
    3 __insert_into_lru_list 0.0300
    3 __global_restore_flags 0.0417
    3 __get_user_4 0.1250
    2 write_ldt 0.0037
    2 walk_page_buffers 0.0161
    2 tcp_try_undo_partial 0.0093
    2 tcp_try_undo_dsack 0.0294
    2 tcp_send_ack 0.0100
    2 tcp_retransmit_skb 0.0034
    2 tcp_new 0.0333
    2 tcp_init_metrics 0.0063
    2 tcp_fragment 0.0029
    2 tcp_fixup_sndbuf 0.0455
    2 tcp_enter_loss 0.0051
    2 tcp_destroy_sock 0.0043
    2 tcp_close_state 0.0104
    2 tcp_child_process 0.0134
    2 tcp_bucket_create 0.0263
    2 tasklet_init 0.0500
    2 sys_close 0.0179
    2 sock_recvmsg 0.0116
    2 sock_map_fd 0.0052
    2 sk_free 0.0172
    2 sk_alloc 0.0208
    2 sem_exit 0.0038
    2 reschedule 0.1667
    2 put_files_struct 0.0109
    2 path_release 0.0417
    2 path_lookup 0.0556
    2 mmput 0.0172
    2 kiobuf_init 0.0238
    2 journal_unfile_buffer 0.0556
    2 journal_get_undo_access 0.0070
    2 journal_dirty_data 0.0047
    2 ip_mc_drop_socket 0.0156
    2 idedisk_open 0.0156
    2 grow_dev_page 0.0122
    2 getname 0.0128
    2 generic_unplug_device 0.0333
    2 generic_file_llseek 0.0135
    2 free_kiovec 0.0200
    2 flush_signal_handlers 0.0333
    2 filemap_nopage 0.0040
    2 ext3_writepage_trans_blocks 0.0152
    2 ext3_getblk 0.0030
    2 do_generic_file_read 0.0017
    2 destroy_inode 0.0455
    2 deliver_to_old_ones 0.0114
    2 copy_namespace 0.0023
    2 clear_inode 0.0122
    2 clean_inode 0.0109
    2 block_prepare_write 0.0179
    2 alloc_kiovec 0.0161
    2 add_page_to_hash_queue 0.0455
    2 activate_page 0.0139
    2 __tcp_v4_lookup_listener 0.0208
    2 __journal_refile_buffer 0.0088
    2 __generic_copy_from_user 0.0227
    2 __find_lock_page 0.0500
    2 __down_trylock 0.0263
    2 __down_failed_trylock 0.1667
    2 __block_commit_write 0.0098
    2 .text.lock.sched 0.0042
    1 vt_console_device 0.0250
    1 vgacon_save_screen 0.0114
    1 udp_sendmsg 0.0010
    1 tty_write 0.0015
    1 tty_ioctl 0.0011
    1 tcp_xmit_retransmit_queue 0.0010
    1 tcp_xmit_probe_skb 0.0086
    1 tcp_v4_synq_add 0.0063
    1 tcp_v4_rebuild_header 0.0028
    1 tcp_timewait_kill 0.0045
    1 tcp_sync_mss 0.0081
    1 tcp_reset_keepalive_timer 0.0250
    1 tcp_reset 0.0039
    1 tcp_recv_urg 0.0044
    1 tcp_incr_quickack 0.0167
    1 tcp_error 0.0139
    1 sys_time 0.0119
    1 sys_stat64 0.0086
    1 sys_modify_ldt 0.0106
    1 sys_lstat64 0.0089
    1 sys_llseek 0.0034
    1 sys_getppid 0.0250
    1 sys_getpeername 0.0081
    1 sys_fstat64 0.0104
    1 sys_clone 0.0250
    1 sys_brk 0.0042
    1 sys_access 0.0034
    1 svc_udp_recvfrom 0.0014
    1 sock_wmalloc 0.0125
    1 sock_release 0.0104
    1 sock_read 0.0064
    1 sock_create 0.0036
    1 skb_recv_datagram 0.0042
    1 show_mem 0.0033
    1 setup_rt_frame 0.0015
    1 setscheduler 0.0024
    1 secure_tcp_sequence_number 0.0051
    1 restart_request 0.0132
    1 remove_inode_page 0.0192
    1 remove_expectations 0.0208
    1 proc_pid_lookup 0.0020
    1 proc_lookup 0.0068
    1 pdc202xx_reset 0.0074
    1 path_walk 0.0357
    1 opost 0.0023
    1 old_mmap 0.0033
    1 normal_poll 0.0035
    1 nfs3svc_encode_attrstat 0.0020
    1 n_tty_receive_buf 0.0002
    1 move_addr_to_user 0.0119
    1 mm_init 0.0051
    1 memory_open 0.0050
    1 kmem_cache_grow 0.0018
    1 kill_fasync 0.0172
    1 journal_free_journal_head 0.0500
    1 journal_bmap 0.0089
    1 journal_blocks_per_page 0.0312
    1 journal_alloc_journal_head 0.0096
    1 is_read_only 0.0147
    1 ip_ct_gather_frags 0.0031
    1 init_private_file 0.0093
    1 init_once 0.0038
    1 init_buffer_head 0.0182
    1 inet_release 0.0125
    1 inet_getname 0.0083
    1 inet_autobind 0.0023
    1 get_pipe_inode 0.0057
    1 free_pgtables 0.0071
    1 fn_hash_lookup 0.0045
    1 find_inlist_lock 0.0035
    1 file_move 0.0139
    1 fcntl_dirnotify 0.0032
    1 ext3_write_inode 0.0192
    1 ext3_test_allocatable 0.0156
    1 ext3_release_file 0.0357
    1 ext3_read_inode 0.0014
    1 ext3_open_file 0.0250
    1 ext3_group_sparse 0.0104
    1 ext3_file_write 0.0053
    1 exit_sighand 0.0100
    1 e1000_tbi_adjust_stats 0.0021
    1 e1000_check_for_link 0.0020
    1 do_timer 0.0125
    1 do_tcp_sendpages 0.0004
    1 do_sys_settimeofday 0.0064
    1 do_readv_writev 0.0016
    1 do_pollfd 0.0074
    1 death_by_timeout 0.0068
    1 d_instantiate 0.0139
    1 cpu_raise_softirq 0.0154
    1 copy_thread 0.0071
    1 clear_page_tables 0.0046
    1 clean_from_lists 0.0139
    1 check_unthrottle 0.0208
    1 change_protection 0.0027
    1 cached_lookup 0.0119
    1 add_to_page_cache_locked 0.0081
    1 __user_walk 0.0156
    1 __remove_inode_page 0.0104
    1 __remove_from_lru_list 0.0119
    1 __refile_buffer 0.0109
    1 __rb_rotate_right 0.0156
    1 __loop_delay 0.0250
    1 .text.lock.super 0.0071

    --
    Roy Sigurd Karlsbakk, Datavaktmester
    ProntoTV AS - http://www.pronto.tv/
    Tel: +47 9801 3356

    Computers are like air conditioners.
    They stop working when you open Windows.

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