apexam:/ $ cat /proc/meminfo
MemTotal:        2047540 kB
MemFree:          246552 kB
MemAvailable:    1459992 kB
Buffers:            2412 kB
Cached:          1226704 kB
SwapCached:            0 kB
Active:           844636 kB
Inactive:         763176 kB
Active(anon):     382268 kB
Inactive(anon):    49968 kB
Active(file):     462368 kB
Inactive(file):   713208 kB
Unevictable:         284 kB
Mlocked:             284 kB
HighTotal:       1564672 kB
HighFree:         175564 kB
LowTotal:         482868 kB
LowFree:           70988 kB
SwapTotal:        520908 kB
SwapFree:         520908 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:        378976 kB
Mapped:           605328 kB
Shmem:             53532 kB
Slab:             118392 kB
SReclaimable:      93220 kB
SUnreclaim:        25172 kB
KernelStack:        7224 kB
PageTables:        15832 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     1544676 kB
Committed_AS:   21870724 kB
VmallocTotal:     499712 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB
CmaTotal:          16384 kB
CmaFree:           15552 kB
apexam:/ $ dumpsys meminfo
Applications Memory Usage (in Kilobytes):
Uptime: 4268520 Realtime: 4268520

Total PSS by process:
     92,077K: system (pid 698)
        556K: servicemanager (pid 204)
          0K: com.android.settings (pid 3274 / activities)
          0K: com.android.launcher3 (pid 1185 / activities)
          0K: com.nextcloud.client (pid 3211)
          0K: android.process.media (pid 1671)
          0K: com.google.android.gms.persistent (pid 966)
          0K: com.google.android.googlequicksearchbox:search (pid 1527)
          0K: com.google.android.gms (pid 1304)
          0K: com.google.android.inputmethod.latin (pid 812)
          0K: com.android.deskclock (pid 3293)
          0K: com.android.defcontainer (pid 3569)
          0K: com.google.android.packageinstaller (pid 3479)
          0K: com.android.printspooler (pid 3046)
          0K: com.anydesk.adcontrol.aosp2 (pid 3768)
          0K: com.google.android.apps.docs (pid 3668)
          0K: com.psb.android.update.service (pid 3143)
          0K: com.android.bluetooth (pid 1592)
          0K: com.android.smspush (pid 1191)
          0K: com.google.android.googlequicksearchbox:interactor (pid 1148)
          0K: com.google.android.ext.services (pid 1091)
          0K: com.android.systemui (pid 783)
          0K: com.android.phone (pid 777)
          0K: /init (pid 1)
          0K: ueventd (pid 162)
          0K: logd (pid 182)
          0K: debuggerd (pid 189)
          0K: vold (pid 190)
          0K: debuggerd:signaller (pid 191)
          0K: healthd (pid 200)
          0K: displayd (pid 201)
          0K: tee-supplicant (pid 202)
          0K: lmkd (pid 203)
          0K: surfaceflinger (pid 205)
          0K: adbd (pid 211)
          0K: drmserver (pid 217)
          0K: installd (pid 218)
          0K: keystore (pid 219)
          0K: media.codec (pid 220)
          0K: mediadrmserver (pid 221)
          0K: media.extractor (pid 222)
          0K: gatekeeperd (pid 226)
          0K: zygote (pid 463)
          0K: audioserver (pid 464)
          0K: cameraserver (pid 465)
          0K: mediaserver (pid 466)
          0K: netd (pid 467)
          0K: sdcard (pid 820)
          0K: wpa_supplicant (pid 1029)
          0K: sh (pid 3922)
          0K: dumpsys (pid 3927)

Total PSS by OOM adjustment:
        556K: Native
            556K: servicemanager (pid 204)
              0K: /init (pid 1)
              0K: ueventd (pid 162)
              0K: logd (pid 182)
              0K: debuggerd (pid 189)
              0K: vold (pid 190)
              0K: debuggerd:signaller (pid 191)
              0K: healthd (pid 200)
              0K: displayd (pid 201)
              0K: tee-supplicant (pid 202)
              0K: lmkd (pid 203)
              0K: surfaceflinger (pid 205)
              0K: adbd (pid 211)
              0K: drmserver (pid 217)
              0K: installd (pid 218)
              0K: keystore (pid 219)
              0K: media.codec (pid 220)
              0K: mediadrmserver (pid 221)
              0K: media.extractor (pid 222)
              0K: gatekeeperd (pid 226)
              0K: zygote (pid 463)
              0K: audioserver (pid 464)
              0K: cameraserver (pid 465)
              0K: mediaserver (pid 466)
              0K: netd (pid 467)
              0K: sdcard (pid 820)
              0K: wpa_supplicant (pid 1029)
              0K: sh (pid 3922)
              0K: dumpsys (pid 3927)
     92,077K: System
         92,077K: system (pid 698)

Total PSS by category:
     26,437K: Native
     26,314K: .dex mmap
     16,283K: Dalvik
      6,637K: .apk mmap
      5,044K: .oat mmap
      3,514K: .so mmap
      2,990K: Dalvik Other
      2,151K: Unknown
      1,816K: .art mmap
        740K: Ashmem
        391K: Other dev
        233K: Other mmap
         52K: Stack
         31K: .ttf mmap
          0K: Cursor
          0K: Gfx dev
          0K: .jar mmap
          0K: EGL mtrack
          0K: GL mtrack
          0K: Other mtrack

Total RAM: 2,047,540K (status normal)
 Free RAM:   870,516K (        0K cached pss +   623,800K cached kernel +   246,716K free)
 Used RAM:   299,413K (   92,633K used pss +   206,780K kernel)
 Lost RAM:   877,607K
     ZRAM:         4K physical used for         0K in swap (  520,908K total swap)
   Tuning: 192 (large 512), oom   184,320K, restore limit    61,440K (high-end-gfx)
apexam:/ $

정상시료에서는 Used RAM 사이즈가 300M 정도에서 안정적으로 동작 함.