---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-5118 4.15.0-192-generic #203-Ubuntu SMP Wed Aug 10 17:40:03 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 8 NUMA node(s): 1 Vendor ID: AuthenticAMD CPU family: 23 Model: 49 Model name: AMD EPYC-Rome Processor Stepping: 0 CPU MHz: 2800.000 BogoMIPS: 5600.00 Virtualization: AMD-V Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 512K L3 cache: 16384K NUMA node0 CPU(s): 0-7 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm rep_good nopl xtopology cpuid extd_apicid tsc_known_freq pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext perfctr_core ssbd ibrs ibpb stibp vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves clzero xsaveerptr arat npt lbrv nrip_save tsc_scale vmcb_clean flushbyasid pausefilter pfthreshold v_vmsave_vmload vgif umip rdpid arch_capabilities ---> nproc: 8 ---> df -h: Filesystem Size Used Avail Use% Mounted on udev 16G 0 16G 0% /dev tmpfs 3.2G 1.8M 3.2G 1% /run /dev/vda1 155G 15G 141G 10% / tmpfs 16G 0 16G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 16G 0 16G 0% /sys/fs/cgroup /dev/vda15 105M 4.4M 100M 5% /boot/efi tmpfs 3.2G 0 3.2G 0% /run/user/1001 shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/5dad5078cf051cf36fdfd1d13e54f73b570b4d5f6859605fd786683331bbbad0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f78f613c48ae1a10669c30f77de1cb3032d4bfaa42a6d65cc3c52bc1ce90f3c5/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/0fda0fc78c723478c7ddfc9eb8df0b4c57de1fb952510b02b68864047d392e69/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/53861e80ecd0ef648d43ac000a4b44ea63c292f3d40f24309ea952a4d9d44d29/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/221a2bfae58ddb6d5c59acbd36ec45b22d04375719ecd1c923998724f0c15f5c/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1547 24159 1 6460 30163 Swap: 0 0 0 ---> ip addr: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens3: mtu 1458 qdisc mq state UP group default qlen 1000 link/ether fa:16:3e:0a:78:4c brd ff:ff:ff:ff:ff:ff inet 10.30.107.102/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86061sec preferred_lft 86061sec inet6 fe80::f816:3eff:fe0a:784c/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:d5:a1:59:71 brd ff:ff:ff:ff:ff:ff inet 10.250.0.254/24 brd 10.250.0.255 scope global docker0 valid_lft forever preferred_lft forever inet6 fe80::42:d5ff:fea1:5971/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether e2:3b:f1:17:5c:21 brd ff:ff:ff:ff:ff:ff inet 10.42.0.0/32 scope global flannel.1 valid_lft forever preferred_lft forever inet6 fe80::e03b:f1ff:fe17:5c21/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 72:e9:4b:56:ab:03 brd ff:ff:ff:ff:ff:ff inet 10.42.0.1/24 brd 10.42.0.255 scope global cni0 valid_lft forever preferred_lft forever inet6 fe80::70e9:4bff:fe56:ab03/64 scope link valid_lft forever preferred_lft forever 8: veth65bf57a0@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 7a:24:05:07:60:e2 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::7824:5ff:fe07:60e2/64 scope link valid_lft forever preferred_lft forever 9: veth1669753c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether de:a7:df:0e:b7:6b brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::dca7:dfff:fe0e:b76b/64 scope link valid_lft forever preferred_lft forever 10: vethc72ea9e5@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether f6:af:8e:5a:06:cc brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::f4af:8eff:fe5a:6cc/64 scope link valid_lft forever preferred_lft forever 11: veth12e8d15c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:85:f4:33:4a:3a brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::1c85:f4ff:fe33:4a3a/64 scope link valid_lft forever preferred_lft forever 12: vethaf627ef0@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether be:9a:7e:dc:a2:f2 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::bc9a:7eff:fedc:a2f2/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-5118) 10/26/26 _x86_64_ (8 CPU) 06:05:29 LINUX RESTART (8 CPU) 06:06:02 tps rtps wtps bread/s bwrtn/s 06:07:01 577.48 86.65 490.83 3864.99 158337.65 06:08:01 157.86 0.02 157.84 0.13 90755.81 06:09:01 130.11 3.33 126.78 453.52 61062.49 06:10:01 120.71 20.39 100.32 761.88 50467.04 06:11:01 95.72 1.02 94.70 70.25 11742.44 Average: 215.18 22.07 193.11 1020.76 74194.67 06:06:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:07:01 26713500 31070824 6225712 18.90 112720 4382536 2752848 8.36 2032232 3632644 603344 06:08:01 25225596 30504612 7713616 23.42 119776 5251528 3400788 10.32 2872096 4229672 527600 06:09:01 26058996 31026228 6880216 20.89 123400 5033692 2774724 8.42 2232536 4139300 244680 06:10:01 25148928 30865452 7790284 23.65 133072 5729264 3331948 10.12 2538688 4684292 56360 06:11:01 24725588 30871940 8213624 24.94 140512 6111188 3332136 10.12 2549552 5056656 195996 Average: 25574522 30867811 7364690 22.36 125896 5301642 3118489 9.47 2445021 4348513 325596 06:06:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:07:01 cni0 33.23 31.62 19.71 92.94 0.00 0.00 0.78 0.00 06:07:01 veth12e8d15c 0.14 0.39 0.01 0.03 0.00 0.00 0.00 0.00 06:07:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:07:01 docker0 161.98 263.35 11.06 1505.98 0.00 0.00 0.00 0.00 06:08:01 cni0 12.13 13.55 2.72 1.77 0.00 0.00 0.18 0.00 06:08:01 veth12e8d15c 0.03 0.18 0.00 0.01 0.00 0.00 0.00 0.00 06:08:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:08:01 docker0 6.28 9.97 0.55 1.06 0.00 0.00 0.00 0.00 06:09:01 cni0 11.76 13.46 2.39 1.49 0.00 0.00 0.07 0.00 06:09:01 veth12e8d15c 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 06:09:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:09:01 docker0 4.15 6.72 0.32 18.82 0.00 0.00 0.00 0.00 06:10:01 cni0 12.35 13.66 2.43 1.99 0.00 0.00 0.12 0.00 06:10:01 veth12e8d15c 0.00 0.12 0.00 0.01 0.00 0.00 0.00 0.00 06:10:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:11:01 cni0 11.85 13.28 2.39 1.47 0.00 0.00 0.05 0.00 06:11:01 veth12e8d15c 0.02 0.05 0.00 0.00 0.00 0.00 0.00 0.00 06:11:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: cni0 16.21 17.07 5.88 19.69 0.00 0.00 0.24 0.00 Average: veth12e8d15c 0.04 0.16 0.00 0.01 0.00 0.00 0.00 0.00 Average: flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 34.06 55.32 2.36 301.19 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-5118) 10/26/26 _x86_64_ (8 CPU) 06:05:29 LINUX RESTART (8 CPU) 06:06:02 CPU %user %nice %system %iowait %steal %idle 06:07:01 all 17.16 0.61 6.35 2.78 0.01 73.09 06:07:01 0 22.42 0.02 6.59 2.28 0.02 68.68 06:07:01 1 16.60 0.00 5.57 0.55 0.02 77.26 06:07:01 2 14.79 0.00 6.30 6.04 0.02 72.85 06:07:01 3 17.14 0.00 6.54 2.67 0.00 73.64 06:07:01 4 15.97 1.51 5.67 4.16 0.02 72.67 06:07:01 5 13.57 0.00 6.14 2.16 0.02 78.11 06:07:01 6 15.52 3.30 6.17 0.55 0.02 74.45 06:07:01 7 21.24 0.00 7.79 3.90 0.02 67.06 06:08:01 all 44.08 0.00 5.52 0.54 0.01 49.85 06:08:01 0 42.55 0.00 5.58 0.07 0.02 51.79 06:08:01 1 50.15 0.00 5.58 1.55 0.02 42.71 06:08:01 2 42.98 0.00 4.84 1.12 0.02 51.04 06:08:01 3 45.38 0.00 6.64 1.18 0.02 46.79 06:08:01 4 41.01 0.00 5.54 0.02 0.02 53.41 06:08:01 5 41.89 0.00 5.33 0.10 0.00 52.68 06:08:01 6 43.36 0.00 5.30 0.29 0.00 51.06 06:08:01 7 45.28 0.00 5.39 0.00 0.03 49.30 06:09:01 all 44.26 0.22 7.38 0.61 0.02 47.52 06:09:01 0 43.57 0.00 7.11 0.03 0.03 49.25 06:09:01 1 44.95 0.00 7.85 2.88 0.02 44.31 06:09:01 2 45.54 0.00 6.90 0.66 0.02 46.89 06:09:01 3 48.35 0.00 6.85 0.29 0.02 44.50 06:09:01 4 42.63 0.00 6.52 0.66 0.00 50.19 06:09:01 5 41.95 0.69 8.26 0.22 0.02 48.86 06:09:01 6 42.44 1.04 7.09 0.08 0.02 49.33 06:09:01 7 44.65 0.00 8.41 0.08 0.00 46.86 06:10:01 all 9.15 0.00 3.07 0.80 0.01 86.97 06:10:01 0 13.61 0.00 3.48 0.32 0.00 82.59 06:10:01 1 5.86 0.00 2.34 0.19 0.02 91.60 06:10:01 2 9.66 0.00 3.07 0.60 0.00 86.67 06:10:01 3 11.97 0.00 2.77 0.25 0.00 85.00 06:10:01 4 8.27 0.00 2.70 0.23 0.00 88.80 06:10:01 5 4.85 0.00 3.69 0.24 0.00 91.23 06:10:01 6 6.48 0.00 3.85 2.99 0.00 86.68 06:10:01 7 12.51 0.00 2.67 1.52 0.02 83.29 06:11:01 all 11.93 0.00 1.50 0.46 0.01 86.10 06:11:01 0 18.47 0.00 1.99 0.27 0.02 79.26 06:11:01 1 13.57 0.00 1.82 0.52 0.02 84.07 06:11:01 2 7.20 0.00 1.49 0.30 0.02 90.99 06:11:01 3 16.53 0.00 1.91 1.17 0.02 80.38 06:11:01 4 8.20 0.00 1.19 0.44 0.02 90.16 06:11:01 5 5.10 0.00 0.94 0.05 0.00 93.91 06:11:01 6 12.37 0.00 1.39 0.79 0.02 85.44 06:11:01 7 13.97 0.00 1.25 0.13 0.02 84.63 Average: all 25.33 0.16 4.75 1.03 0.01 68.71 Average: 0 28.11 0.00 4.94 0.59 0.02 66.34 Average: 1 26.25 0.00 4.63 1.14 0.02 67.98 Average: 2 24.08 0.00 4.51 1.72 0.01 69.67 Average: 3 27.90 0.00 4.94 1.11 0.01 66.04 Average: 4 23.21 0.30 4.32 1.09 0.01 71.07 Average: 5 21.50 0.14 4.87 0.55 0.01 72.94 Average: 6 24.05 0.86 4.75 0.94 0.01 69.40 Average: 7 27.55 0.00 5.09 1.11 0.02 66.23