anchor.diff:  
   prstat -mLc 1 ("USR" + "SYS")		
   
  -|Memory capacity |errors	|
  -dmesg for physical failures |
  -fmadm faulty and prtdiag for physical failures
  +|Memory capacity |errors	
  +|dmesg for physical failures 
  +|fmadm faulty and prtdiag for physical failures
   
   fmstat -s -m cpumem-retire (ECC events)
   
   DTrace failed malloc()s		
   
  -|Memory capacity |saturation |
  -*system-wide*
  +|Memory capacity |saturation 
  +|*system-wide*
   
   vmstat 1, "si"/"so" (swapping)
   
   *per-process*
   
  -10th field (min_flt) from /proc/PID/stat for minor-fault rate, or dynamic tracing [5]
  -
  -*OOM killer*: dmesg \| grep killed |
  -*system-wide*
  +10th field (min_flt) from /proc/PID/stat for minor-fault rate
  +
  +*OOM killer*: dmesg \| grep killed 
  +|*system-wide*
   
   vmstat 1, "sr" (bad now), "w" (was very bad)
   
  
positive.code: 
  prstat -c, "RSS" (main memory), "SIZE" (virtual memory)
  
  |Network Interfaces	|errors	|
  ifconfig, "errors", "dropped"
  
  netstat -i, "RX-ERR"/"TX-ERR"
  
  
negative.code: 
  *file systems*
  
  df -h 
  |*swap*
  
  swap -s
  
  