On Wed, 2006-10-11 at 14:05 -0400, Dave Jones wrote:
> On Wed, Oct 11, 2006 at 07:53:03PM +0200, Jindrich Novy wrote:
> > Any help is appreciated. I have to mention I see similar behavior
> > of my HP laptop when it's resurrected from software suspend sometimes
> > even on FC6. CPU load is at 100% immediately after waking the laptop up.
> > Did anyone from you experience similar problems? Is there known
> > any workaround?
Sorry for delay.
> Finding out what its doing is the first step.
>
> 1- is it stuck in userspace? (top)
Nope, the CPU is idle (load of <3%)
> 2- is the kernel really busy? (boot with profile=1, and run readprofile, or
> use oprofile)
Attaching readprofile logs, which were taken by:
readprofile -r; sleep 1000; readprofile > log
The logs are:
log_plugged - laptop running on AC power, no problems
log_unplugged - laptop running on batteries, fan runs wildly wasting the
battery power reserves
> 3- does /proc/interrupts show an interrupt arriving at a ridiculously high rate?
/proc/interrupts shows nothing suspicious, only timer and LOC increasing
in the normal increment
Jindrich
83 hpet_timer_stop_set_go 0.7685
1 current_fs_time 0.0112
2 __do_softirq 0.0103
634 handle_IRQ_event 8.3421
2 free_hot_cold_page 0.0054
1 percpu_counter_mod 0.0149
1 unmap_mapping_range 0.0019
1 kmem_cache_free 0.0185
1 __dentry_open 0.0023
1 __d_lookup 0.0042
1 memcpy 0.0250
498568 acpi_processor_idle 539.5758
1 ide_init_drive_cmd 0.0294
121 ide_do_request 0.0649
1 ide_do_drive_cmd 0.0034
39 ide_inb 5.5714
44 ide_outsw 4.4000
8 ide_outl 4.0000
3 ide_set_handler 0.0462
83 ide_driveid_update 0.2635
1 cdrom_read_toc 0.0010
3 schedule 0.0010
1 __mutex_lock_slowpath 0.0009
363 _spin_unlock 72.6000
1 *unknown*
499964 total 0.2269
1 cpu_idle 0.0060
2 sysenter_past_esp 0.0165
1 do_gettimeofday 0.0065
46 hpet_timer_stop_set_go 0.4259
1 profile_hit 0.0040
1 write_profile 0.0041
6 __do_softirq 0.0309
4 kmem_cache_free 0.0741
1 get_unused_fd 0.0051
2 nameidata_to_filp 0.0392
2 do_sys_open 0.0110
1 __find_get_block_slow 0.0034
2 check_disk_change 0.0192
3 do_open 0.0041
2 putname 0.0541
1 do_ioctl 0.0102
1 do_sys_poll 0.0012
1 dummy_file_alloc_security 0.3333
1 dummy_file_mmap 0.3333
1 blk_put_queue 0.1000
1 blk_put_request 0.0185
1 blk_get_queue 0.0303
1 blkdev_driver_ioctl 0.0106
2 blkdev_ioctl 0.0012
1 scsi_cmd_ioctl 0.0011
1 kobject_put 0.0556
1 kref_put 0.0076
1 kref_get 0.0137
3 _raw_spin_trylock 0.0750
2 _raw_spin_lock 0.0089
498293 acpi_processor_idle 539.2781
10 generic_ide_ioctl 0.0086
2 ide_init_drive_cmd 0.0588
415 ide_do_request 0.2226
196 ide_inb 28.0000
4 ide_outsw 0.4000
41 ide_driveid_update 0.1302
1 cdrom_prepare_request 0.0333
4 cdrom_queue_packet_command 0.0213
5 cdrom_read_tocentry 0.0316
1 idecd_ioctl 0.0029
2 cdrom_read_toc 0.0020
2 cdrom_transfer_packet_command 0.0099
4 cdrom_ioctl 0.0014
1 sock_poll 0.0588
1 sys_recvfrom 0.0032
1 net_rx_action 0.0025
1 sk_run_filter 0.0007
1 eth_type_trans 0.0045
1 ip_local_deliver 0.0018
1 udp_recvmsg 0.0021
1 unix_stream_recvmsg 0.0009
9 schedule 0.0031
2 __mutex_unlock_slowpath 0.0041
2 mutex_unlock 0.2500
533 _spin_unlock 106.6000
1 lock_kernel 0.0192
3 *unknown*
499629 total 0.2267
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