---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-5108 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: 2799.998 BogoMIPS: 5599.99 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/219a4efecaf1a9941fe2175aa69f8c4d3d0e07ac38984735e62b5a23b831e166/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/7cc62af5fe63d316425ea7c7f6716f6855a151cc6b1ac842e99444321c474b1e/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/5818ca5d058159127ceb880e8050168916c16cafe37e2549ff23c57415e9e50d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/9be4155eefcbef1993f96692ed14634bdce26d30cb04a90f6879ddebf9a4b536/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/7d6705bb68958c267813dd0ffd2a06bb258804b51b6c32774a5f6e8aae25f351/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1500 24237 1 6429 30209 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:80:f0:3f brd ff:ff:ff:ff:ff:ff inet 10.30.106.32/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86034sec preferred_lft 86034sec inet6 fe80::f816:3eff:fe80:f03f/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:25:7f:9c:85 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::42:25ff:fe7f:9c85/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 5a:99:a1:08:5f:d7 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::5899:a1ff:fe08:5fd7/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether ba:8d:79:14:06:8c 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::b88d:79ff:fe14:68c/64 scope link valid_lft forever preferred_lft forever 8: veth8932066b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 12:d7:ce:4a:74:8b brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::10d7:ceff:fe4a:748b/64 scope link valid_lft forever preferred_lft forever 9: vethf49dc527@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 52:5e:3c:9f:d7:a3 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::505e:3cff:fe9f:d7a3/64 scope link valid_lft forever preferred_lft forever 10: veth9e454d15@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 06:c8:d3:f2:d8:c3 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::4c8:d3ff:fef2:d8c3/64 scope link valid_lft forever preferred_lft forever 13: veth0967bbf5@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 22:0d:ba:a3:8c:83 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::200d:baff:fea3:8c83/64 scope link valid_lft forever preferred_lft forever 14: veth1809cb89@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:96:52:90:94:bb brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::6c96:52ff:fe90:94bb/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-5108) 11/02/26 _x86_64_ (8 CPU) 15:04:43 LINUX RESTART (8 CPU) 15:05:01 tps rtps wtps bread/s bwrtn/s 15:06:02 203.83 88.14 115.70 5346.31 60595.23 15:07:01 456.43 49.87 406.56 2996.92 130296.42 15:08:01 73.87 0.02 73.85 0.13 56584.40 15:09:01 172.49 3.45 169.04 471.25 125566.41 15:10:01 104.22 20.70 83.52 807.47 36159.71 Average: 201.32 32.38 168.94 1920.89 81679.24 15:05:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:06:02 30245236 31776596 2693976 8.18 44704 1805792 1408592 4.28 1031572 1384160 313300 15:07:01 26048860 30867208 6890352 20.92 122424 4792272 3446960 10.46 2523360 3755076 438376 15:08:01 24528012 30633536 8411200 25.54 126364 6026420 3686536 11.19 3439196 4310448 968492 15:09:01 25623772 31023428 7315440 22.21 132768 5416984 3258340 9.89 2296500 4463320 540 15:10:01 25055324 30917720 7883888 23.93 143412 5837688 3421372 10.39 2518592 4771440 172216 Average: 26300241 31043698 6638971 20.16 113934 4775831 3044360 9.24 2361844 3736889 378585 15:05:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 15:06:02 lo 2.30 2.30 0.25 0.25 0.00 0.00 0.00 0.00 15:06:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:06:02 ens3 344.86 245.76 1344.59 73.02 0.00 0.00 0.00 0.00 15:07:01 veth8932066b 0.54 1.47 0.10 0.22 0.00 0.00 0.00 0.00 15:07:01 lo 225.28 225.28 175.44 175.44 0.00 0.00 0.00 0.00 15:07:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:07:01 docker0 115.27 170.02 9.40 1531.53 0.00 0.00 0.00 0.00 15:08:01 veth8932066b 0.13 0.20 0.01 0.02 0.00 0.00 0.00 0.00 15:08:01 lo 12.08 12.08 3.70 3.70 0.00 0.00 0.00 0.00 15:08:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:08:01 docker0 0.47 0.58 0.06 0.45 0.00 0.00 0.00 0.00 15:09:01 veth8932066b 0.10 0.13 0.01 0.02 0.00 0.00 0.00 0.00 15:09:01 lo 17.00 17.00 4.34 4.34 0.00 0.00 0.00 0.00 15:09:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:09:01 docker0 0.05 0.08 0.00 0.01 0.00 0.00 0.00 0.00 15:10:01 veth8932066b 0.10 0.20 0.01 0.02 0.00 0.00 0.00 0.00 15:10:01 lo 43.38 43.38 17.21 17.21 0.00 0.00 0.00 0.00 15:10:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth8932066b 0.17 0.40 0.02 0.06 0.00 0.00 0.00 0.00 Average: lo 59.46 59.46 39.74 39.74 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 22.85 33.68 1.87 302.31 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-5108) 11/02/26 _x86_64_ (8 CPU) 15:04:43 LINUX RESTART (8 CPU) 15:05:01 CPU %user %nice %system %iowait %steal %idle 15:06:02 all 5.82 0.62 1.41 8.25 0.01 83.90 15:06:02 0 7.41 0.02 1.27 2.39 0.02 88.90 15:06:02 1 11.25 0.00 1.42 1.12 0.02 86.20 15:06:02 2 2.59 0.00 0.99 11.48 0.02 84.92 15:06:02 3 6.39 0.00 1.21 38.20 0.02 54.18 15:06:02 4 3.14 0.00 2.07 4.63 0.02 90.14 15:06:02 5 5.33 0.00 1.07 1.32 0.00 92.28 15:06:02 6 6.24 0.00 1.28 0.70 0.02 91.76 15:06:02 7 4.16 4.90 1.97 6.37 0.02 82.58 15:07:01 all 30.95 0.00 7.58 6.86 0.02 54.59 15:07:01 0 29.99 0.00 8.22 7.52 0.00 54.27 15:07:01 1 29.85 0.00 7.30 3.79 0.02 59.04 15:07:01 2 30.67 0.00 7.09 5.33 0.02 56.89 15:07:01 3 29.81 0.00 7.32 8.57 0.00 54.30 15:07:01 4 32.22 0.00 8.18 14.18 0.02 45.40 15:07:01 5 32.03 0.00 7.74 4.71 0.03 55.49 15:07:01 6 30.86 0.00 7.42 7.88 0.02 53.82 15:07:01 7 32.22 0.00 7.38 2.91 0.02 57.48 15:08:01 all 54.29 0.00 7.76 0.86 0.03 37.07 15:08:01 0 53.61 0.00 8.00 0.39 0.03 37.97 15:08:01 1 54.54 0.00 7.79 0.13 0.02 37.52 15:08:01 2 52.58 0.00 7.05 0.00 0.02 40.35 15:08:01 3 54.95 0.00 8.37 0.20 0.03 36.45 15:08:01 4 54.81 0.00 8.31 2.89 0.02 33.97 15:08:01 5 52.22 0.00 7.06 0.02 0.02 40.69 15:08:01 6 58.47 0.00 7.55 0.77 0.03 33.18 15:08:01 7 53.11 0.00 7.97 2.47 0.03 36.42 15:09:01 all 19.28 0.20 5.46 4.42 0.02 70.61 15:09:01 0 18.99 0.00 6.06 4.51 0.03 70.40 15:09:01 1 19.09 0.00 5.82 9.00 0.02 66.08 15:09:01 2 19.11 0.00 5.37 3.20 0.03 72.28 15:09:01 3 22.50 0.00 4.46 8.33 0.03 64.68 15:09:01 4 18.14 0.00 5.40 7.20 0.02 69.23 15:09:01 5 19.54 0.00 5.49 0.15 0.02 74.79 15:09:01 6 18.59 1.62 5.83 2.66 0.03 71.27 15:09:01 7 18.34 0.00 5.27 0.29 0.02 76.09 15:10:01 all 8.41 0.00 1.52 1.74 0.01 88.32 15:10:01 0 4.25 0.00 1.18 0.07 0.00 94.49 15:10:01 1 9.32 0.00 2.24 3.70 0.02 84.72 15:10:01 2 5.58 0.00 1.58 0.49 0.00 92.35 15:10:01 3 10.45 0.00 1.31 0.34 0.00 87.91 15:10:01 4 3.96 0.00 1.06 5.44 0.02 89.53 15:10:01 5 9.97 0.00 1.55 0.52 0.00 87.96 15:10:01 6 17.77 0.00 1.85 2.57 0.02 77.79 15:10:01 7 5.94 0.00 1.38 0.87 0.00 91.81 Average: all 23.69 0.17 4.73 4.42 0.02 66.98 Average: 0 22.79 0.00 4.93 2.95 0.02 69.32 Average: 1 24.77 0.00 4.90 3.54 0.02 66.78 Average: 2 22.04 0.00 4.40 4.11 0.02 69.43 Average: 3 24.80 0.00 4.52 11.13 0.02 59.53 Average: 4 22.38 0.00 4.99 6.83 0.02 65.79 Average: 5 23.74 0.00 4.56 1.33 0.01 70.35 Average: 6 26.34 0.32 4.77 2.89 0.02 65.65 Average: 7 22.70 0.99 4.78 2.58 0.02 68.94