Type ‘vmstat’ at the command prompt and follow along.
procs memory page disks faults cpu
r b w avm fre flt re pi po fr sr ad0 in sy cs us sy id
3 0 0 580416 1388912 234 11 7 0 209 0 0 171 5796 3816 3 10 87
Under the procs section
r – No.of processes that are blocked waiting for CPU time
b – No.of processes that are blocked waiting for IO
w – No.of processes that are runnable but are entirely swapped out because of lack of memory space.
In the output, which ever field has greater number is the bottleneck.
r = processor
b = disk
w = memory
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