# /tmp/logの結果をグラフ化
$ while true; do system-cgtop test_group >> /tmp/log; sleep 1; done
# 以下は最大値
Control Group                         Tasks   %CPU   Memory  Input/s Output/s
test_group                                -      -  1018.8M        -        -

# stress-ng-vmがoom-killerにより強制終了され、再起動して繰り返している
$ dmesg | fgrep oom-killer | nl
     1  [  437.977846] stress-ng-vm invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=1000
     2  [  440.076766] stress-ng-vm invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=1000
     3  [  442.165790] stress-ng-vm invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=1000

(snip)

    20  [  477.685670] stress-ng-vm invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=1000
