[wplug] Help with an investigating some unknown disk activity.

Terence J. Golighlty terencejgolightly at gmail.com
Thu Dec 4 21:07:59 EST 2014


List,

Looks like thunderbird is the culprit.  I am gonna shut it down and recheck.

  ~ $ sudo iotop -o -t -q -k -n 10
21:04:22 Total DISK READ :       0.00 K/s | Total DISK WRITE : 0.00 K/s
21:04:22 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 0.00 K/s
     TIME  TID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN IO    COMMAND
21:04:23 Total DISK READ :       0.00 K/s | Total DISK WRITE : 0.00 K/s
21:04:23 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 0.00 K/s
21:04:24 Total DISK READ :       0.00 K/s | Total DISK WRITE : 0.00 K/s
21:04:24 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 0.00 K/s
21:04:24  1459 be/4 root        0.00 K/s    0.00 K/s  0.00 %  0.36 % 
[kworker/u16:1]
21:04:25 Total DISK READ :       0.00 K/s | Total DISK WRITE : 89.23 K/s
21:04:25 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 166.82 K/s
21:04:25   466 be/3 root        0.00 K/s   31.04 K/s  0.00 % 11.97 % 
[jbd2/sda5-8]
21:04:25  2130 be/4 terryg      0.00 K/s   46.55 K/s  0.00 %  0.08 % 
thunderbird [mozStorage #3]
21:04:25  2071 be/4 terryg      0.00 K/s   11.64 K/s  0.00 %  0.00 % 
thunderbird
21:04:26 Total DISK READ :       0.00 K/s | Total DISK WRITE : 138.07 K/s
21:04:26 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 295.31 K/s
21:04:26   466 be/3 root        0.00 K/s    7.67 K/s  0.00 % 29.47 % 
[jbd2/sda5-8]
21:04:26  1459 be/4 root        0.00 K/s    0.00 K/s  0.00 %  0.27 % 
[kworker/u16:1]
21:04:26  2130 be/4 terryg      0.00 K/s  115.06 K/s  0.00 %  0.24 % 
thunderbird [mozStorage #3]
21:04:26  2071 be/4 terryg      0.00 K/s   15.34 K/s  0.00 %  0.00 % 
thunderbird
21:04:27 Total DISK READ :       0.00 K/s | Total DISK WRITE : 120.09 K/s
21:04:27 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 193.69 K/s
21:04:27   466 be/3 root        0.00 K/s    0.00 K/s  0.00 % 29.86 % 
[jbd2/sda5-8]
21:04:27  2130 be/4 terryg      0.00 K/s  108.46 K/s  0.00 %  0.22 % 
thunderbird [mozStorage #3]
21:04:27  2071 be/4 terryg      0.00 K/s   11.62 K/s  0.00 %  0.00 % 
thunderbird
21:04:28 Total DISK READ :       0.00 K/s | Total DISK WRITE : 193.78 K/s
21:04:28 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 356.55 K/s
21:04:28   466 be/3 root        0.00 K/s   15.50 K/s  0.00 % 32.83 % 
[jbd2/sda5-8]
21:04:28   328 be/3 root        0.00 K/s    7.75 K/s  0.00 %  8.10 % 
[jbd2/sda4-8]
21:04:28  2130 be/4 terryg      0.00 K/s  155.02 K/s  0.00 %  0.28 % 
thunderbird [mozStorage #3]
21:04:28  1459 be/4 root        0.00 K/s    0.00 K/s  0.00 %  0.27 % 
[kworker/u16:1]
21:04:28  2071 be/4 terryg      0.00 K/s   15.50 K/s  0.00 %  0.00 % 
thunderbird
21:04:29 Total DISK READ :       0.00 K/s | Total DISK WRITE : 96.90 K/s
21:04:29 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 193.80 K/s
21:04:29   466 be/3 root        0.00 K/s    0.00 K/s  0.00 % 28.93 % 
[jbd2/sda5-8]
21:04:29  2130 be/4 terryg      0.00 K/s   85.27 K/s  0.00 %  0.16 % 
thunderbird [mozStorage #3]
21:04:29  2071 be/4 terryg      0.00 K/s   11.63 K/s  0.00 %  0.00 % 
thunderbird
21:04:30 Total DISK READ :       0.00 K/s | Total DISK WRITE : 143.42 K/s
21:04:30 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 290.73 K/s
21:04:30   466 be/3 root        0.00 K/s    3.88 K/s  0.00 % 31.77 % 
[jbd2/sda5-8]
21:04:30  1459 be/4 root        0.00 K/s    0.00 K/s  0.00 %  0.27 % 
[kworker/u16:1]
21:04:30  2130 be/4 terryg      0.00 K/s  124.04 K/s  0.00 %  0.24 % 
thunderbird [mozStorage #3]
21:04:30  2071 be/4 terryg      0.00 K/s   15.51 K/s  0.00 %  0.00 % 
thunderbird
21:04:31 Total DISK READ :       0.00 K/s | Total DISK WRITE : 100.76 K/s
21:04:31 Actual DISK READ:       0.00 K/s | Actual DISK WRITE: 248.02 K/s
21:04:31   466 be/3 root        0.00 K/s    0.00 K/s  0.00 % 24.90 % 
[jbd2/sda5-8]
21:04:31  2130 be/4 terryg      0.00 K/s   89.13 K/s  0.00 %  0.17 % 
thunderbird [mozStorage #3]
21:04:31  2071 be/4 terryg      0.00 K/s   11.63 K/s  0.00 %  0.00 % 
thunderbird

Regards,

Terry


On 12/04/2014 10:15 AM, Pat Barron wrote:
> Do you have "iotop" installed on your system?  It might help.  I have 
> this on my RHEL system, not sure what other distros include it. It 
> would at least tell you what process is responsible for the disk 
> activity.
>
> --Pat.
>
> On 12/3/2014 8:53 PM, Terence J. Golighlty wrote:
>> Hi,
>>
>> I am experiencing periodic disk activity that I cannot determine what 
>> is actually happening.  I have had kept an eye on logs, run sar.  But 
>> it only tells me (FWICT) when a disk read/write occurs. So what 
>> utility can I use to narrow down what my HDD is doing during these 
>> occasions when it sounds like its an engine idling up and down for 
>> about 5 to 10 seconds and nothing for... a minute or so?
>>
>> Thanks,
>>
>> Terry Golightly
>> WPLUG for EONS!
>> _______________________________________________
>> wplug mailing list
>> wplug at wplug.org
>> http://www.wplug.org/mailman/listinfo/wplug
>
>
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