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Linux의 모든 메모리는 소비되지 않습니다.

tag-icon • tag-icon linux kernel ram
Linux의 모든 메모리는 소비되지 않습니다.

Ubuntu 5.15 커널을 실행하는 8GB 시스템이 있습니다. 재부팅을 해도 여유 메모리가 1GB밖에 남지 않습니다. 나는 가장 많은 메모리를 소비하는 프로세스(가장 많이 소비하는 200MB)를 나열하기 위해 free -m노력 cat /proc/meminfo했습니다 . ps aux아래에 이들의 출력을 제공합니다. 이 문제의 원인은 무엇이며 해결 방법은 무엇입니까?

MemTotal:        7751740 kB
MemFree:          472272 kB
MemAvailable:     962800 kB
Buffers:           39668 kB
Cached:           652640 kB
SwapCached:            0 kB
Active:           218316 kB
Inactive:         816804 kB
Active(anon):       2512 kB
Inactive(anon):   349956 kB
Active(file):     215804 kB
Inactive(file):   466848 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:       2097148 kB
SwapFree:        2097148 kB
Dirty:               404 kB
Writeback:             0 kB
AnonPages:        342880 kB
Mapped:           253212 kB
Shmem:             14380 kB
KReclaimable:      65340 kB
Slab:             491344 kB
SReclaimable:      65340 kB
SUnreclaim:       426004 kB
KernelStack:       13984 kB
PageTables:        12200 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     5973016 kB
Committed_AS:    3450184 kB
VmallocTotal:   34359738367 kB
VmallocUsed:       62028 kB
VmallocChunk:          0 kB
Percpu:            35840 kB
HardwareCorrupted:     0 kB
AnonHugePages:         0 kB
ShmemHugePages:        0 kB
ShmemPmdMapped:        0 kB
FileHugePages:         0 kB
FilePmdMapped:         0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
Hugetlb:               0 kB
DirectMap4k:      439756 kB
DirectMap2M:     4423680 kB
DirectMap1G:     5242880 kB

free -m의 출력:

               total        used        free      shared  buff/cache   available
Mem:            7570        6374         451          14         744         934
Swap:           2047           0        2047

출력 ps aux | awk '{print $6/1024 " MB\t\t" $11}' | sort -n:

.
.
.
17.1641 MB      /usr/libexec/gnome-session-binary
18.0469 MB      /usr/sbin/NetworkManager
20.0547 MB      /usr/libexec/packagekitd
20.5898 MB      /usr/libexec/gsd-keyboard
21.0039 MB      /usr/bin/python3
21.4297 MB      /usr/libexec/gsd-wacom
22.0117 MB      /usr/bin/pulseaudio
22.7617 MB      /usr/bin/python3
24.2656 MB      /usr/libexec/gsd-power
24.4805 MB      /usr/libexec/gsd-color
24.5625 MB      /usr/bin/pulseaudio
25.2344 MB      /usr/libexec/tracker-miner-fs-3
25.7227 MB      /usr/libexec/gsd-media-keys
26.9805 MB      /usr/bin/gjs
27.0859 MB      /usr/bin/gjs
30.0234 MB      /usr/libexec/tracker-extract-3
37.3438 MB      /usr/lib/snapd/snapd
38.2695 MB      /usr/libexec/goa-daemon
53.3516 MB      /lib/systemd/systemd-journald
86.5469 MB      /usr/bin/Xwayland
199.949 MB      /usr/bin/gnome-shell

출력 df | grep tmpfs:

tmpfs             775176     2396    772780   1% /run
tmpfs            3875868        0   3875868   0% /dev/shm
tmpfs               5120        4      5116   1% /run/lock
tmpfs             775172       76    775096   1% /run/user/127
tmpfs             775172       68    775104   1% /run/user/1001

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