From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
To: Zwane Mwaikambo <zwane@linuxpower.ca>
Cc: "Kernel mailing list" <linux-kernel@vger.kernel.org>,
"Harald Dankworth" <harald@pronto.tv>,
"Atle Sjønøst" <atle@pronto.tv>
Subject: Re: cdrom_sysctl_register uses LOTS of CPU, and no cdrom is attached (2.4.20-pre10)
Date: Tue, 15 Oct 2002 09:49:16 +0200 [thread overview]
Message-ID: <200210150949.16991.roy@karlsbakk.net> (raw)
In-Reply-To: <Pine.LNX.4.44.0210150102120.1795-100000@montezuma.mastecende.com>
[-- Attachment #1: Type: text/plain, Size: 663 bytes --]
On Tuesday 15 October 2002 07:07, Zwane Mwaikambo wrote:
> On Mon, 14 Oct 2002, Roy Sigurd Karlsbakk wrote:
> > attached is the .config and these three readprofile output files
> > (pro[123]). see time to see the interval they have been created in
>
> These look like bungled up profiles of the magnitude that even i couldn't
> conjure up ;)
excuse me?
made a new one now.
why is cdrom_sysctl_register using all that cpu??? I mean - it's got nothing
there to do!
--
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.
[-- Attachment #2: pro4 --]
[-- Type: text/plain, Size: 19612 bytes --]
4 _stext 0.0833
27 huft_build 0.0147
76 inflate_codes 0.0731
1 inflate_dynamic 0.0006
236 gunzip 0.1855
321 dump_thread 1.1146
181 __switch_to 0.8702
1 sys_rt_sigreturn 0.0039
1 setup_rt_frame 0.0016
3 do_signal 0.0047
1 badsys 0.0667
1404 alignment_check 117.0000
42 page_fault 3.5000
29 machine_check 2.4167
9 spurious_interrupt_bug 0.7500
20 show_trace 0.0833
1 show_stack 0.0078
11 .text.lock.irq 0.3548
3225 save_v86_state 6.7188
607 sys_ipc 1.1158
115 do_open 0.5529
3 apm_get_info 0.0134
123 free_initrd_mem 0.9609
67 __verify_write 0.2204
631 do_page_fault 0.5130
37 remap_area_pages 0.0826
258 sys_sched_getparam 1.0078
25 sys_sched_get_priority_min 0.5208
82 sys_sched_rr_get_interval 0.2697
559 show_task 1.5190
154 render_sigset_t 1.2031
429 reparent_to_init 1.4112
235 daemonize 2.0982
8 wake_up_process 0.1067
57 request_dma 0.8906
2328 lookup_exec_domain 14.5500
2187 register_exec_domain 27.3375
1 print_tainted 0.0089
3 do_syslog 0.0038
1 emit_log_char 0.0089
1 printk 0.0035
1 console_unblank 0.0156
1 sys_create_module 0.0025
1 qm_modules 0.0033
2 sys_query_module 0.0057
1 exit_notify 0.0016
1 sys_sysinfo 0.0031
215 sys_settimeofday 1.0337
1 tasklet_action 0.0089
8567 tasklet_hi_action 76.4911
2 tasklet_init 0.0417
2 __run_task_queue 0.0208
185 ksoftirqd 1.0511
65 cpu_raise_softirq 1.1207
2 Letext 0.3333
67 get_resource_list 1.0469
65 __request_resource 0.8125
1 release_resource 0.0625
4 check_resource 0.0500
1 update_wall_time_one_tick 0.0057
1 update_wall_time 0.0156
520 timer_bh 0.6019
95 do_timer 0.8482
203 sys_alarm 2.5375
3 sys_getpid 0.0938
104 sys_geteuid 3.2500
8 sys_getgid 0.2500
22 unblock_all_signals 0.2292
296 collect_signal 1.3214
417 bad_signal 2.8958
131 send_signal 0.5117
4 deliver_signal 0.0417
9 send_sig_info 0.0563
6 force_sig_info 0.0417
1 kill_pg_info 0.0089
2 wake_up_parent 0.0312
2 sys_rt_sigqueueinfo 0.0074
52 sys_rt_sigaction 0.1625
62 sys_ssetmask 0.7750
1 sys_signal 0.0208
28 kill_proc_info 0.1944
2 sys_setregid 0.0096
1 sys_setresuid 0.0022
2 exec_usermodehelper 0.0022
1 call_usermodehelper 0.0048
2 vmtruncate_list 0.0208
33 vmtruncate 0.1146
1 do_anonymous_page 0.0045
44 handle_mm_fault 0.2292
3 vmalloc_to_page 0.0395
1 unlock_vma_mappings 0.0625
2 get_unmapped_area 0.0074
21 find_vma 0.2188
28 find_vma_prev 0.1458
1712 find_extend_vma 9.7273
281 unmap_fixup 0.9243
53 do_brk 0.1104
2 build_mmap_rb 0.0208
4 exit_mmap 0.0139
4 insert_vm_struct 0.0315
39 .text.lock.mmap 0.6000
2 add_page_to_hash_queue 0.0417
3 __remove_inode_page 0.0375
1 set_page_dirty 0.0125
1 invalidate_inode_pages 0.0069
1 truncate_list_pages 0.0024
4 invalidate_list_pages2 0.0125
1 do_buffer_fdatasync 0.0089
1 generic_buffer_fdatasync 0.0052
1 filemap_fdatasync 0.0063
1 __find_lock_page_helper 0.0089
17 find_or_create_page 0.0817
2 grab_cache_page_nowait 0.0114
1 mark_page_accessed 0.0156
1 do_generic_file_read 0.0010
1 generic_file_direct_IO 0.0021
6 sys_sendfile 0.0121
22 do_readahead 0.1528
1 madvise_fixup_end 0.0042
2 madvise_fixup_middle 0.0057
55 madvise_willneed 0.1809
3 sys_mincore 0.0110
15 read_cache_page 0.0493
157 generic_file_write 0.0962
3295 change_protection 9.3608
15 mprotect_fixup 0.0146
3 kmem_cache_create 0.0037
1 remove_exclusive_swap_page 0.0048
404 try_to_unuse 0.6159
874 sys_swapoff 1.6066
4 sys_swapon 0.0023
23 get_swaphandle_info 0.1198
98 valid_swaphandles 0.7259
5 Letext 0.5556
1 int_sqrt 0.0156
44 badness 0.2292
1 shmem_clear_swp 0.0104
6 shmem_unuse_inode 0.0312
2 shmem_unuse 0.0250
7 shmem_writepage 0.0257
8 shmem_getpage_locked 0.0111
325 shmem_file_write 0.4416
26 do_shmem_file_read 0.1083
374 shmem_statfs 4.6750
10 shmem_mknod 0.0893
379 shmem_rename 2.9609
59 shmem_symlink 0.1229
145 shmem_follow_link 1.2946
302 shmem_parse_options 0.5551
1 sys_statfs 0.0045
13 sys_truncate64 0.0339
1 remove_super 0.0069
1 sys_ustat 0.0042
1 get_anon_super 0.0045
2 do_kern_mount 0.0078
49 kill_super 0.2188
38 .text.lock.super 0.1631
1835 do_open 5.4613
3703 blkdev_put 19.2865
1 bdevname 0.0169
15 sys_stat64 0.1339
1 sys_fstat64 0.0093
2 copy_strings 0.0046
2 setup_arg_pages 0.0060
7 exec_mmap 0.0243
7 flush_old_exec 0.0115
3 prepare_binprm 0.0099
3 compute_creds 0.0089
3 pipe_read 0.0054
10 link_path_walk 0.0046
4 __emul_lookup_dentry 0.0179
1 lookup_one_len 0.0089
1 d_unhash 0.0104
2 vfs_rmdir 0.0040
2 file_ioctl 0.0057
1 sys_poll 0.0014
1 flock64_to_posix_lock 0.0035
47 locks_insert_lock 0.7344
225 locks_delete_lock 1.0045
10 posix_lock_file 0.0084
2 __get_lease 0.0040
2 fcntl_setlease 0.0037
1 fcntl_setlk 0.0021
1 fcntl_setlk64 0.0021
3 locks_remove_posix 0.0089
1 lock_get_status 0.0022
1 Letext 0.0030
1 free_kiobuf_bhs 0.0125
1 expand_kiobuf 0.0057
997 show_vfsmnt 1.1127
5 may_umount 0.1562
271 umount_tree 1.4115
495 do_umount 1.9336
169 sys_umount 0.9602
22 sys_oldumount 0.6875
16 mount_is_safe 0.3333
91 copy_tree 0.4740
182 graft_tree 0.7109
185 do_loopback 0.5256
122 do_remount 0.7625
215 do_move_mount 0.4072
1 do_add_mount 0.0030
4 do_mount 0.0109
1 bm_entry_read 0.0039
2 load_script 0.0042
15 load_elf_binary 0.0051
1 load_elf_library 0.0020
12 elf_core_dump 0.0051
1 proc_exe_link 0.0063
2 proc_root_link 0.0208
2 proc_pid_environ 0.0250
4 mounts_release 0.0357
1 proc_info_read 0.0037
1 mem_read 0.0030
3 do_proc_readlink 0.0134
1 proc_symlink 0.0078
3 ext3_free_data 0.0089
1 ext3_free_branches 0.0020
1 ext3_do_update_inode 0.0011
3 ext3_setattr 0.0072
2 ext3_change_inode_journal_flag 0.0066
1 ext3_ioctl 0.0009
13 ext3_find_entry 0.0185
1 ext3_lookup 0.0078
2 ext3_create 0.0069
4 ext3_mkdir 0.0049
3 empty_dir 0.0063
321 ext3_orphan_add 0.6472
2 ext3_orphan_del 0.0037
4 journal_commit_transaction 0.0011
2 jread 0.0078
4 count_tags 0.0500
2 journal_recover 0.0114
2 journal_skip_recovery 0.0179
1 do_one_pass 0.0009
2 ext2_read_super 0.0012
7 zlib_fs_inflate_blocks 0.0022
1 zlib_fs_inflate_codes 0.0005
1 zlib_fs_inflate 0.0011
1 huft_build 0.0005
1 isofs_dentry_cmp 0.0312
1 isofs_get_blocks 0.0020
1 isofs_read_level3_size 0.0014
1 parse_rock_ridge_inode_internal 0.0006
2 nlmsvc_decode_testargs 0.0039
1 nlm4svc_decode_unlockargs 0.0125
1 nlm4svc_decode_shareargs 0.0052
3 nlm4svc_proc_unlock 0.0170
1 smb_proc_do_getattr 0.0052
5 smb_lookup 0.0240
6377 autoconfig 6.3264
1 pci_siig10x_fn 0.0089
2 pci_siig20x_fn 0.0179
2 serial_remove_one 0.0125
47 register_serial 0.0773
68 setledstate 0.8500
58 register_leds 0.7250
55 kbd_bh 0.2973
41 Letext 0.6406
18 pckbd_translate 0.0625
1 interpret_errors 0.0016
1 user_reset_fdc 0.0078
1 raw_cmd_ioctl 0.0010
154 fd_ioctl 0.0526
72 compute_loop_size 0.5625
30 do_nbd_request 0.1172
23 nbd_ioctl 0.0236
68 eepro100_init_one 0.1288
233 speedo_found1 0.1324
38 do_eeprom_cmd 0.1827
1 ide_scan_devices 0.0052
1 ide_dmafunc_verbose 0.0063
1 pdc202xx_tune_chipset 0.0012
2 pdc202xx_new_tune_chipset 0.0020
1 piix_get_info 0.0009
1 piix_tune_drive 0.0023
421 cdrom_sysctl_handler 1.7542
6090389 cdrom_sysctl_register 54378.4732
104 pci_find_subsys 0.8125
42 pci_find_class 0.8750
56 call_policy 0.1250
1 usb_start_wait_urb 0.0026
2 usb_internal_control_msg 0.0156
1 usb_control_msg 0.0069
109 usb_get_device_descriptor 3.4062
391 usb_get_status 4.8875
260 usb_get_protocol 3.2500
1 usb_open 0.0042
1 usb_hub_configure 0.0016
1 usb_hub_port_debounce 0.0048
1 usb_hcd_pci_resume 0.0063
708 hcd_submit_urb 0.9219
1 periodic_unlink 0.0048
232 td_submit_urb 0.2736
49 dl_transfer_length 0.2188
15 dl_del_urb 0.1562
16 raid5_end_write_request 0.0417
161 xor_pII_mmx_5 0.3049
20 get_spare 0.1389
1 md_sync_acct 0.0089
1 is_mddev_idle 0.0057
2 md_do_sync 0.0019
13 unregister_netdevice 0.0271
1 __dev_mc_upload 0.0208
1 ip_frag_queue 0.0012
69 ip_frag_reasm 0.1052
92 ip_defrag 0.3286
55 ip_forward 0.1211
90 ip_options_echo 0.1082
17 ip_options_fragment 0.1181
1640 ip_options_compile 1.0904
3 ip_options_undo 0.0170
72 ip_options_get 0.2647
60 ip_forward_options 0.1562
114 ip_options_rcv_srr 0.3574
1 ip_dev_loopback_xmit 0.0089
25 ip_queue_xmit 0.0214
1 ip_cmsg_recv 0.0078
11 ip_cmsg_send 0.0573
8 ip_recv_error 0.0161
1 ip_setsockopt 0.0004
1 tcp_ioctl 0.0019
2 inet_del_ifa 0.0063
23 inet_fill_ifaddr 0.0399
1 devinet_sysctl_forward 0.0104
8 devinet_sysctl_register 0.0238
68 inet_sock_release 0.5312
41 inet_create 0.0732
1 fib_create_info 0.0012
4 tux_error_report 0.0147
2 tux_state_change 0.0030
2 tux_ftp_data_ready 0.0114
11 tux_ftp_create_child 0.0299
13 link_tux_socket 0.0542
1 parse_request 0.0008
74 parse_http_message 0.0032
1 zap_userspace_req 0.0104
16 gen_bitlen 0.0323
1 send_all_trees 0.0015
23 _tr_tally 0.0799
41 compress_block 0.0377
13 set_data_type 0.1016
2 bi_flush 0.0139
6145734 total 3.8794
next prev parent reply other threads:[~2002-10-15 7:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-14 14:39 cdrom_sysctl_register uses LOTS of CPU, and no cdrom is attached (2.4.20-pre10) Roy Sigurd Karlsbakk
2002-10-15 5:07 ` Zwane Mwaikambo
2002-10-15 7:49 ` Roy Sigurd Karlsbakk [this message]
2002-10-15 9:42 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200210150949.16991.roy@karlsbakk.net \
--to=roy@karlsbakk.net \
--cc=atle@pronto.tv \
--cc=harald@pronto.tv \
--cc=linux-kernel@vger.kernel.org \
--cc=zwane@linuxpower.ca \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).