Linux ❀ Linux下檢視記憶體資訊

Linux下檢視記憶體資訊

[root@localhost ~]# free
              total        used        free      shared  buff/cache   available
Mem:        1867292      305944     1167764        9264      393584     1355780
Swap:       2097148           0     2097148      

• total:總計實體記憶體的大小。
• used:已使用多大。
• free:可用有多少。
• Shared:多個程序共享的記憶體總額。
• Buffers/cached:磁盤緩存的大小。

[root@localhost ~]# cat /proc/meminfo
MemTotal:        1867292 kB
MemFree:         1168048 kB
MemAvailable:    1356064 kB
Buffers:            1752 kB
Cached:           311720 kB
SwapCached:            0 kB
Active:           262812 kB
Inactive:         262940 kB
Active(anon):     213140 kB
Inactive(anon):     8404 kB
Active(file):      49672 kB
Inactive(file):   254536 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:       2097148 kB
SwapFree:        2097148 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:        212312 kB
Mapped:            91884 kB
Shmem:              9264 kB
Slab:              80080 kB
SReclaimable:      29836 kB
SUnreclaim:        50244 kB
KernelStack:        6736 kB
PageTables:        15316 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     3030792 kB
Committed_AS:    1702084 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      183460 kB
VmallocChunk:   34359310332 kB
HardwareCorrupted:     0 kB
AnonHugePages:     32768 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       92032 kB
DirectMap2M:     2004992 kB
DirectMap1G:           0 kB