11682 zpool iostat and status improvements

Review Request #2478 — Created Jan. 6, 2020 and submitted

Information
jjelinek
illumos-gate
11682
Reviewers
general 
Port from OpenZFS of a set of zpool 'iostat' and 'status' enhancements. Also added kstats in the places where the code was originally using Linux /proc to expose various state. Also updated various zfs-test cases to remove old workaround for the previously missing zpool iostat handling (this brings these test back into closer alignment with OpenZFS).




 













 

 






 
 
 

  

   
  

  
    
   
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citrus




   

   







  

 



 

  


   

   

    
 
citrus


    
   


  

  

  



    




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      Andy, thanks for the code review. I'm going to wait on this change until after my changes for '12235 Add libzutil for libzfs or libzpool consumers' has integrated. I'll rebase this on top of that work, which will allow me to simply this iostat change and remove some of the code that is currently in this patch.
      
 
      

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jjelinek




   

   

  

 



 















 





 

  

   




seeemef@mac.com




   

   







  

 



 

  


   

   

    
 
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      usr/src/cmd/zpool/zpool_main.c
      


       (Diff revision 3)


      
     
    
    
       
   
    
     
    

    
     
    

       
  
    
 
    

   
    
    
    



    
 
    
  
    
   
   
    
    
     
     
     
     
     
    
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    Is this leaked if return at line 3990?
    
  
    
 
    

 
    
  


    
 
    
 
      

  


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      Yes. This same issue exists in OpenZFS but I fixed it here for illumos.
      
 
      

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      usr/src/cmd/zpool/zpool_main.c
      


       (Diff revision 3)


      
     
    
    
       
   
    
     
    

    
     
    

       
  
    
 
    

   
    
    
    



    
 
    
  
    
   
   
    
    
     
     
     
     
     
    
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    Curious if there's any value to multiple gettext() calls for an English sentence split arbitrarily in the middle
    
  
    
 
    

 
    
  


    
 
    
 
      

  


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      There is no value but this is how the code is written in OpenZFS so I'd like to leave this as-is.
      
 
      

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      usr/src/cmd/zpool/zpool_main.c
      


       (Diff revision 3)


      
     
    
    
       
   
    
     
    

    
     
    

       
  
    
 
    

   
    
    
    



    
 
    
  
    
   
   
    
    
     
     
     
     
     
    
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    I see a sleep() converted to fsleep() on line 3638. Should this be done too?
    
  
    
 
    

 
    
  


    
 
    
 
      

  


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      Yes, I changed it to match OpenZFS which uses flseep here.
      
 
      

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      usr/src/man/man1m/zpool.1m
      


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    Comma splice?
    
  
    
 
    

 
    
  


    
 
    
 
      

  


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      This seems ok to me, so I left it as-is.
      
 
      

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      usr/src/man/man1m/zpool.1m
      


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    Would .Sy be preferred for mdoc?
    
  
    
 
    

 
    
  


    
 
    
 
      

  

 
    


    

 
    

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      usr/src/uts/common/fs/zfs/spa_misc.c
      


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    comma splice?
    
  
    
 
    

 
    
  


    
 
    
 
      

  

 
    


    

 
    

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jjelinek




   

   

  

 



 















 





 

  

   




seeemef@mac.com




   

   







  

 



 

  


   

   

    
 
seeemef@mac.com


    
   


  

  

  



    




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    Ship It!
    
  
    
 
    

 
    
  


    
 
    
 
      

  

 
    


    

 
    

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citrus




   

   







  

 



 

  


   

   

    
 
citrus


    
   


  

  

  



    




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    Ship It!
    
  
    
 
    

 
    
  


    
 
    
 
      

  

 
    


    

 
    

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jjelinek




   

   

  

 



 

  


   

   

    
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  Status:
  

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