为什么docker stats显示的 CPU 值超过 100%？
我已经配置了Grafana和Prometheus来监控我们的Docker容器，并注意到CPU拨号高于100%(例如，274.87%)。这显然必须是无效的，因为 CPU 不应超过 100%。我认为问题不在于普罗米修斯，因为它只是收集数据，所以我查看了 docker 统计数据，它确实显示了多个容器以高于 100% 的 CPU 运行。
一个显示864.22%！有什么想法吗？如果这个系统没有正确报告，即使这是Docker的错而不是Prometheus，也很难在这个系统上销售其他人。
b6ca088bd36f 864.22% 145.6MiB/31.38GiB 0.45% 809kB/0B 1.08GB/60.7GB 13
myuser@myserver：/opt/grafana-prometheus$ docker stats --no-stream --format "table {{.ID}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.MemPerc}}\t{{.NetIO}}\t{{.BlockIO}}\t{{.PIDs}}" 容器 ID CPU 内存使用率百分比/限制内存百分比净 I/O 块 I/O PID 3aa1b1ee6e19 1.44% 108.7MiB/31.38GiB 0.34% 62.5MB/1.91MB 3.87MB/0B 27 100f43fad3ab 33.25% 128.6MiB/31.38GiB 0.40% 945kB/57.3MB 0B/0B 38 0ac96cc007b5 0.03% 30.85MiB/31.38GiB 0.10% 4.65MB/8.35MB 0B/18.2MB 26 6b0e97f7e724 0.08% 3.055MiB/31.38GiB 0.01% 1.66kB/0B 0B/0B 4 c73fb64316a7 20.31% 19.89MiB/31.38GiB 0.06% 134kB/4.86MB 2.75MB/0B 39 9789baadfd00 0.00% 7.164MiB/31.38GiB 0.02% 24.5kB/2.3MB 12.9MB/0B 5 a71d00ccf435 0.00% 8.52MiB/31.38GiB 0.03% 1.76MB/963kB 680kB/0B 2 f404766b0661 0.07% 6.047MiB/31.38GiB 0.02% 7.92GB/6.06GB 3.24MB/0B 1 35c262f7d578 13.67% 1.115GiB/31.38GiB 3.55% 3.04TB/264GB 6.59GB/2.07GB 17 df7c4ab8d05a 0.00% 37.04MiB/31.38GiB 0.12% 332MB/183MB 47.8MB/8.19kB 18 1079691ced88 22.10% 314.2MiB/31.38GiB 0.98% 2.18TB/222GB 31.4GB/29.5GB 8 ce4699287e5b 0.00% 77.75MiB/31.38GiB 0.24% 61GB/18.8GB 927MB/78MB 4 448a6b27df90 0.00% 8.836MiB/31.38GiB 0.03% 3.94GB/1.28GB 5.08MB/0B 7 9fc4b8d7eaa5 9.21% 480.6MiB/31.38GiB 1.50% 134GB/2.82TB 76.1GB/1.91TB 51 e169b18b9e18 0.02% 45.25MiB/31.38GiB 0.14% 71.1MB/54.7MB 56.7MB/6.02MB 10 200e4dd14258 10.04% 151.5MiB/31.38GiB 0.47% 57.3GB/198GB 35.4MB/1.37TB 4 c4bf2af973b6 0.00% 42.62MiB/31.38GiB 0.13% 1.26GB/77.3MB 19.6MB/8.19kB 10 5275f51e0d67 0.30% 115MiB/31.38GiB 0.36% 77.4MB/1.32GB 93.3MB/8.02GB 28 ba921d36ba50 0.00% 31.12MiB/31.38GiB 0.10% 332MB/183MB 42.3MB/8.19kB 16 d32e55c339c3 0.00% 9.84MiB/31.38GiB 0.03% 1.22MB/1.48MB 9.73MB/0B 2 08c62a2d03ab 0.28% 143.1MiB/31.38GiB 0.45% 4.17GB/6.26GB 27.7MB/57.3kB 11 d7830b42d157 0.14% 2.262MiB/31.38GiB 0.01% 4.89GB/3.62GB 197kB/0B 1 8b30b0a206c9 0.02% 34.17MiB/31.38GiB 0.11% 886kB/2.08MB 4.37MB/147kB 9 3a332472da76 0.12% 122.4MiB/31.38GiB 0.38% 1.55GB/887MB 9.32MB/348GB 4 58077ea4b082 0.06% 253MiB/31.38GiB 0.79% 540kB/3.22MB 142MB/153MB 30 2894fd5d1e4d 0.00% 20.55MiB/31.38GiB 0.06% 578kB/0B 157MB/129MB 3 53cbc0e871df 0.00% 8.121MiB/31.38GiB 0.03% 101MB/51.5MB 1.24MB/0B 7 8ee607007e29 0.00% 64.38MiB/31.38GiB 0.20% 42.8MB/82.4MB 38.9MB/1.51MB 4 8361042fb46d 0.23% 47.14MiB/31.38GiB 0.15% 125kB/0B 12.9MB/7.61GB 26 d379c40f3170 0.00% 30.04MiB/31.38GiB 0.09% 784kB/60.9kB 16MB/0B 10b63fad3f97db 0.23% 46.72MiB/31.38GiB 0.15% 1.13MB/16.4MB 22.2MB/7.61GB 26 b4dbeab1ff03 0.06% 3.05GiB/31.38GiB 9.72% 56.1GB/1.07TB 8.3GB/29.2GB 48 0f95c759e0b6 120.35% 8.782GiB/31.38GiB 27.98% 235GB/1.2TB 9.79GB/1.03TB 51 304a44684bf3 0.21% 3.758GiB/31.38GiB 11.97% 3.94GB/8.24GB 2.45GB/23.9GB 27 cd7b0670f6ad 0.00% 9.344MiB/31.38GiB 0.03% 1.72MB/1.86MB 20.5MB/0B 2 8beb3f42046a 0.00% 1.832MiB/31.38GiB 0.01% 809kB/0B 24.6kB/0B 1 b6ca088bd36f 864.22% 145.6MiB/31.38GiB 0.45% 809kB/0B 1.08GB/60.7GB 13 e91017608575 0.00% 32.59MiB/31.38GiB 0.10% 538MB/296MB 34.7MB/8.19kB 17 f821730e7ae2 0.00% 61.62MiB/31.38GiB 0.19% 1.14GB/8.92MB 14.5MB/229kB 4 760a476ac1fa 0.00% 9.523MiB/31.38GiB 0.03% 3.27MB/2.18MB 7.18MB/0B 7 0c8abcd7fef8 0.05% 38.22MiB/31.38GiB 0.12% 6.95MB/1.14GB 223MB/34.8MB 29 7af2e3f2447d 0.02% 26.84MiB/31.38GiB 0.08% 1.21MB/4.01MB 3.31MB/24.6kB 9 0004b7a7905a 0.08% 107.9MiB/31.38GiB 0.34% 297MB/537MB 3.97MB/361GB 4 d505d2b67553 0.00% 34.19MiB/31.38GiB 0.11% 1.16MB/340kB 10.3MB/0B 10 b4bd6dc9139d 0.21% 46.45MiB/31.38GiB 0.14% 157kB/0B 21.9MB/12.4GB 26 046f1826a598 0.00% 7.785MiB/31.38GiB 0.02% 4.64GB/2.4GB 213MB/0B 2 4dfaa4076961 0.00% 193.1MiB/31.38GiB 0.60% 5.31MB/31.9MB 0B/68.1MB 21 400c170c2690 0.30% 23.09MiB/31.38GiB 0.07% 1.17MB/389KB 2.53GB/1.44MB 35 30d4821cec59 0.12% 55.2MiB/31.38GiB 0.17% 8.17GB/10.1GB 114MB/407MB 66 b7b1e39c002c 0.00% 2.383MiB/31.38GiB 0.01% 621kB/0B 8.86MB/0B 5 03d761c40e38 0.00% 10.74MiB/31.38GiB 0.03% 1.32GB/1.03GB 15.8MB/0B 5 6e4ab551f915 0.00% 198.7MiB/31.38GiB 0.62% 489kB/203kB 0B/37.4MB 21
当单个处理器被充分利用时，CPU 使用率为 100%。对于多个处理器，这个数字将超过100%，您需要乘以主机可用的处理器数量才能找到理论上限。
一些工具还显示系统负载而不是 CPU 利用率，这在 Linux 中非常不同。系统负载随着进程等待运行而增加，因此如果有 5 个进程都希望 100% 运行，则单个 CPU 系统上的负载为 500%。