[android-kernel] android-4.14 kernel LowMemoryKiller and swap，2G RAM device

[youling 257]

4.9 kernel swap

android_x86:/ $ su
android_x86:/ # swapon /data/swapfile
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1861 64 201 120 1074
-/+ buffers/cache: 666 1259
Swap: 1019 0 1019
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1875 50 193 34 906
-/+ buffers/cache: 934 992
Swap: 1019 16 1003
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1872 53 204 34 862
-/+ buffers/cache: 974 951
Swap: 1019 20 999
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1872 53 189 8 433
-/+ buffers/cache: 1430 495
Swap: 1019 378 641
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1869 57 189 3 424
-/+ buffers/cache: 1440 486
Swap: 1019 378 641
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1875 51 189 2 422
-/+ buffers/cache: 1450 475
Swap: 1019 387 632
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1876 49 189 2 424
-/+ buffers/cache: 1450 476
Swap: 1019 387 632
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1875 50 189 1 423
-/+ buffers/cache: 1450 475
Swap: 1019 403 616
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1876 49 189 1 423
-/+ buffers/cache: 1451 474
Swap: 1019 403 616
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1872 53 189 1 422
-/+ buffers/cache: 1448 478
Swap: 1019 403 616
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1875 50 189 1 425
-/+ buffers/cache: 1448 477
Swap: 1019 437 582
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1877 48 189 1 431
-/+ buffers/cache: 1445 481
Swap: 1019 441 578
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1875 51 189 2 435
-/+ buffers/cache: 1437 488
Swap: 1019 441 578
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1877 48 189 2 438
-/+ buffers/cache: 1437 489
Swap: 1019 441 578
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1875 50 189 2 444
-/+ buffers/cache: 1427 498
Swap: 1019 461 558
android_x86:/ # busybox free -m
total used free shared buffers cached
Mem: 1926 1082 844 205 27 715
-/+ buffers/cache: 339 1587
Swap: 1019 427 592
android_x86:/ # swapoff /data/swapfile
android_x86:/ #