how to find out iowait per process on linux with top command

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How to find iowait to process on linux with top command?



I want to find out how much time my process wait for i/o.




linux io top




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  • 1




    you have got to use iotop
    – Rui F Ribeiro
    Jan 23 at 19:29














up vote
0
down vote

favorite












How to find iowait to process on linux with top command?



I want to find out how much time my process wait for i/o.




linux io top




share|improve this question


















  • 1




    you have got to use iotop
    – Rui F Ribeiro
    Jan 23 at 19:29












up vote
0
down vote

favorite









up vote
0
down vote

favorite











How to find iowait to process on linux with top command?



I want to find out how much time my process wait for i/o.




linux io top




share|improve this question














How to find iowait to process on linux with top command?



I want to find out how much time my process wait for i/o.





linux io top





share|improve this question













share|improve this question




share|improve this question








edited Jan 23 at 20:16

























asked Jan 23 at 19:18









fsefs

12




12







  • 1




    you have got to use iotop
    – Rui F Ribeiro
    Jan 23 at 19:29












  • 1




    you have got to use iotop
    – Rui F Ribeiro
    Jan 23 at 19:29







1




1




you have got to use iotop
– Rui F Ribeiro
Jan 23 at 19:29




you have got to use iotop
– Rui F Ribeiro
Jan 23 at 19:29










1 Answer
1






active

oldest

votes

















up vote
1
down vote













If you need to monitor processes in realtime, use iotop instead.



top can show total amount of iowait of all processes in wa parameter:




wa, IO-wait : time waiting for I/O completion




In addition with top you can see load average that show average number of running + waiting threads. This metric can indirectly indicate disk problems






share|improve this answer




















  • Is the WA measured in percentages and updated in real time?
    – fsefs
    Jan 23 at 19:43










  • @fsefs, yes it is. From man pages: As a default, percentages for these individual categories are displayed.
    – Egor Vasilyev
    Jan 23 at 20:19










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
1
down vote













If you need to monitor processes in realtime, use iotop instead.



top can show total amount of iowait of all processes in wa parameter:




wa, IO-wait : time waiting for I/O completion




In addition with top you can see load average that show average number of running + waiting threads. This metric can indirectly indicate disk problems






share|improve this answer




















  • Is the WA measured in percentages and updated in real time?
    – fsefs
    Jan 23 at 19:43










  • @fsefs, yes it is. From man pages: As a default, percentages for these individual categories are displayed.
    – Egor Vasilyev
    Jan 23 at 20:19














up vote
1
down vote













If you need to monitor processes in realtime, use iotop instead.



top can show total amount of iowait of all processes in wa parameter:




wa, IO-wait : time waiting for I/O completion




In addition with top you can see load average that show average number of running + waiting threads. This metric can indirectly indicate disk problems






share|improve this answer




















  • Is the WA measured in percentages and updated in real time?
    – fsefs
    Jan 23 at 19:43










  • @fsefs, yes it is. From man pages: As a default, percentages for these individual categories are displayed.
    – Egor Vasilyev
    Jan 23 at 20:19












up vote
1
down vote










up vote
1
down vote









If you need to monitor processes in realtime, use iotop instead.



top can show total amount of iowait of all processes in wa parameter:




wa, IO-wait : time waiting for I/O completion




In addition with top you can see load average that show average number of running + waiting threads. This metric can indirectly indicate disk problems






share|improve this answer












If you need to monitor processes in realtime, use iotop instead.



top can show total amount of iowait of all processes in wa parameter:




wa, IO-wait : time waiting for I/O completion




In addition with top you can see load average that show average number of running + waiting threads. This metric can indirectly indicate disk problems







share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 23 at 19:36









Egor Vasilyev

1,792129




1,792129











  • Is the WA measured in percentages and updated in real time?
    – fsefs
    Jan 23 at 19:43










  • @fsefs, yes it is. From man pages: As a default, percentages for these individual categories are displayed.
    – Egor Vasilyev
    Jan 23 at 20:19
















  • Is the WA measured in percentages and updated in real time?
    – fsefs
    Jan 23 at 19:43










  • @fsefs, yes it is. From man pages: As a default, percentages for these individual categories are displayed.
    – Egor Vasilyev
    Jan 23 at 20:19















Is the WA measured in percentages and updated in real time?
– fsefs
Jan 23 at 19:43




Is the WA measured in percentages and updated in real time?
– fsefs
Jan 23 at 19:43












@fsefs, yes it is. From man pages: As a default, percentages for these individual categories are displayed.
– Egor Vasilyev
Jan 23 at 20:19




@fsefs, yes it is. From man pages: As a default, percentages for these individual categories are displayed.
– Egor Vasilyev
Jan 23 at 20:19












 

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