Answer / uday

vmstat is tool used to check current memory utilisation
status.
it reports memory statistics of process,virtual memory,
disk,trap,and CPU activity.
Basic synctax is
vmstat <options> interval count
option include
paging -p , cache -c ,.interrupt -i
if no option specified then it will show info. about
process , memory , paging , disk ,interrupts & cpu
interval- is time between 2 successive output. it will
show / produce next ouput after specified time.
count- indicate how much ouput you want to see.

Answer / nikil

bash-3.00# vmstat
kthr memory page disk
faults cpu
r b w swap free re mf pi po fr de sr m0 1/ 1/ 1/
in sy cs us sy id
0 0 0 43654024 12969360 5132 6935 7834 7 7 0 0 0 65 2 56
6090 55573 7259 40
12
49

in the above output u need to check the sr field if
sr>200% means out of swap space.you need to increase the
swap space.

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