title: high sys cpu and high ithr in pmap on solaris
body: <p>I have a mysql database running on solaris, from mpstat, I could see a thread has very high ithr and high sys cpu. How can I find where the ithr comes from and why the sys cpu is relatively high?</p>
  
  <p>CPU minf mjf xcal  intr ithr  csw icsw migr smtx  srw syscl  usr sys  wt idl</p>
  
  <p>0    0   0    0   440  146  269    1   17   52    0   833    0   1   0  99
  .......................................................................</p>
  
  <p>7    0   0    0 19798 19738  914   22    4  242    0  3569    5  14   0  81
  ........................................................................</p>
  
  <p>15    0   0    0  1005    0 2035    2    0   52    0  8912   12   3   0  85</p>
  
  <p>CPU minf mjf xcal  intr ithr  csw icsw migr smtx  srw syscl  usr sys  wt idl</p>
  
  <p>0    0   0    0   632  143  678    1   26   46    0  2243    4   2   0  94
  ........................................................................</p>
  
  <p>7    0   0    0 21068 20978 1409   27    9  276    0  5591    9  15   0  76</p>
  
  <p>.................................................................</p>
  
  <p>15  0   0    0   531    0 1071    2    2   45    0  4707    7   2   0  91</p>
  
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