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[Xen-devel] domains being migrated state message improvements



Hi,

Can anyone comment and consider improving the way Xen kernel reports
domains being migrated ? In short Im putting some load on 10-14 guests
and I want to monitor things from dom0 via xentop. Im seeing strange
things reported by xentop like '------'

See entire thread here:
http://lists.xen.org/archives/html/xen-users/2014-05/msg00007.html


Would be useful to have a proper message reported by xl list and xentop
when domains are being migrated. Currently xentop and xl list reporting
things like:

xentop:

>       NAME  STATE   CPU(sec) CPU(%)    
>      c5932 ------       1066   53.1    
>      c5964 -----r       3439   50.7    
>      c6464 ------       1067   50.3    
>    deb7464 ------        630   52.1    
>   Domain-0 -----r      82853  111.5    
>      lobby ------       1380   52.2    
>      r5732 ------      12075   50.7    
>      r5764 -----r      24563   50.6    
>      s10u8 -----r       2647   47.6    
>     sdrcom -----r       1015   52.7    
>     sdrorg --b---        154    0.0    
>    u100432 ------        961   50.9    
>    u100464 -----r        978   52.2    
>    u120464 ------        969   52.7    
>     win764 -----r       1328   72.7  


xl list:

Name                   ID   Mem VCPUs   State   Time(s)
Domain-0               0  6500     2     r-----   87994.3
c5932                  1  1024     1     r-----    8998.7
c5964                  2  1024     1     ------    6786.1
c6464                  3  1024     1     r-----    1896.2
deb7464                4  1024     1     ------     792.3
lobby                  5   756     1     ------    2403.7
r5732                  6  1019     1     r-----   27343.8
r5764                  7  1019     1     ------   27140.4
s10u8                  8  1019     1     r-----    3583.6
sdrcom                 9   768     1     r-----    1852.4
sdrorg                 10   768     1     -b----     168.6     
u100432                11  1024     1     ------   15657.9     
u100464                12  1024     1     r-----    1805.2     
u120464                13  1024     1     r-----    1812.1     
win764                 15  1023     2     ------    3131.6  


Please consider enhancing the output and have proper logging of each domain for
different conditions. Output like '------' is confusing and does not describe
properly the things. Worse 3rd tools or consumers of xentop might break 
when receiving such output.  

Thanks,

-- 
Stefan Parvu <sparvu@xxxxxxxxxxxxxxxxxxxxxx>




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