How to view free memory from a terminal in Linux?



    3 answers 3

    Using the free command.

    alpha@beta:~$ free -m total used free shared buffers cached Mem: 994 683 310 0 59 377 -/+ buffers/cache: 247 747 Swap: 1027 0 1027

      vmstat -s

        8028960 total memory 7781948 used memory 651644 active memory 6895416 inactive memory 247012 free memory 221644 buffer memory 7118196 swap cache 2064376 total swap 46192 used swap 2018184 free swap 50023867 non-nice user cpu ticks 866103 nice user cpu ticks 42902813 system cpu ticks 3551084559 idle cpu ticks 3991557 IO-wait cpu ticks 5359 IRQ cpu ticks 1682224 softirq cpu ticks 666653 stolen cpu ticks 3275206999 pages paged in 686649844 pages paged out 8000 pages swapped in 11698 pages swapped out 4074027452 interrupts 2221948876 CPU context switches 1418184416 boot time 76530955 forks

        You can still like this:

         [hop@hey.la-la.ley ~]$ cat /proc/meminfo MemTotal: 3145728 kB MemFree: 2328424 kB Cached: 631824 kB Buffers: 0 kB Active: 413668 kB Inactive: 349776 kB Active(anon): 7960 kB Inactive(anon): 127060 kB Active(file): 405708 kB Inactive(file): 222716 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 524288 kB SwapFree: 511988 kB Dirty: 4356 kB Writeback: 0 kB AnonPages: 135020 kB Shmem: 3400 kB Slab: 53780 kB SReclaimable: 39160 kB SUnreclaim: 14620 kB