---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-1117 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 nrip_save 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/8d6b8f86cfde946e56dbd6ab79e67a3b174e3e5a9fc44e016a65613702240193/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/cb99e18477ff2a7fedd11a5d20fc164dc58646331f7d5b13455b49ea79c30bdf/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6fe2181e7c8797181d53d1b5c31265dbde4411314d4052afa9718ee74a8b5b00/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/ecb9c14e847d4ad74f1c5848796d8be04229f5abfa3dc2c58d9b84bcf9e6eb52/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/9e1c317d992e6ee81632bf9ffdd915ddb11644d0a206409b56df557d9d62643e/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1549 24167 1 6450 30161 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:75:67:25 brd ff:ff:ff:ff:ff:ff inet 10.30.106.222/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86071sec preferred_lft 86071sec inet6 fe80::f816:3eff:fe75:6725/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:3e:f7:22:9d 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::42:3eff:fef7:229d/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 6e:2a:5f:06:cf:71 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::6c2a:5fff:fe06:cf71/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 2e:39:87:32:f6:cf 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::2c39:87ff:fe32:f6cf/64 scope link valid_lft forever preferred_lft forever 8: vethf47a29d1@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether e2:49:1a:46:3c:ae brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::e049:1aff:fe46:3cae/64 scope link valid_lft forever preferred_lft forever 9: veth5846f439@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether a2:14:59:78:63:58 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::a014:59ff:fe78:6358/64 scope link valid_lft forever preferred_lft forever 10: veth5d03457b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether fa:e7:a9:e4:bd:a6 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::f8e7:a9ff:fee4:bda6/64 scope link valid_lft forever preferred_lft forever 11: veth1694ed5c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ba:c6:28:53:02:16 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::b8c6:28ff:fe53:216/64 scope link valid_lft forever preferred_lft forever 12: veth19744b6b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether fe:a6:9a:1d:c0:c5 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::fca6:9aff:fe1d:c0c5/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-1117) 07/20/26 _x86_64_ (8 CPU) 05:55:02 LINUX RESTART (8 CPU) 05:56:01 tps rtps wtps bread/s bwrtn/s 05:57:01 491.85 41.89 449.96 2189.24 142784.74 05:58:01 140.31 0.00 140.31 0.00 35887.49 05:59:01 193.48 3.82 189.67 535.38 93988.74 06:00:01 111.85 20.38 91.47 757.47 9320.05 Average: 234.37 16.52 217.85 870.52 70495.25 05:56:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:57:01 26052032 30842212 6887188 20.91 135284 4759244 3642864 11.06 2539644 3747316 736160 05:58:01 24832028 30823944 8107192 24.61 138864 5906788 3412512 10.36 3176880 4282924 890712 05:59:01 25354668 30948988 7584552 23.03 143504 5607804 3291824 9.99 2449360 4583336 588 06:00:01 24790296 30741256 8148924 24.74 154532 5919312 3524652 10.70 2691212 4868024 145740 Average: 25257256 30839100 7681964 23.32 143046 5548287 3467963 10.53 2714274 4370400 443300 05:56:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:57:01 docker0 216.25 241.61 15.55 1607.90 0.00 0.00 0.00 0.00 05:57:01 cni0 39.63 38.41 21.21 92.38 0.00 0.00 0.87 0.00 05:57:01 veth19744b6b 5.33 4.53 1.00 1.71 0.00 0.00 0.00 0.00 05:57:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:58:01 docker0 9.02 10.96 0.56 19.24 0.00 0.00 0.00 0.00 05:58:01 cni0 11.58 12.93 2.33 1.44 0.00 0.00 0.10 0.00 05:58:01 veth19744b6b 1.47 1.60 0.12 0.20 0.00 0.00 0.00 0.00 05:58:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:59:01 docker0 0.05 0.07 0.00 0.01 0.00 0.00 0.00 0.00 05:59:01 cni0 12.58 13.50 2.44 1.90 0.00 0.00 0.17 0.00 05:59:01 veth19744b6b 1.65 1.83 0.14 0.41 0.00 0.00 0.00 0.00 05:59:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:00:01 cni0 11.98 13.18 2.40 1.55 0.00 0.00 0.03 0.00 06:00:01 veth19744b6b 1.45 1.53 0.12 0.19 0.00 0.00 0.00 0.00 06:00:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 56.33 63.16 4.03 406.79 0.00 0.00 0.00 0.00 Average: cni0 18.94 19.51 7.10 24.32 0.00 0.00 0.29 0.00 Average: veth19744b6b 2.47 2.37 0.35 0.63 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 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-1117) 07/20/26 _x86_64_ (8 CPU) 05:55:02 LINUX RESTART (8 CPU) 05:56:01 CPU %user %nice %system %iowait %steal %idle 05:57:01 all 25.39 0.00 6.18 2.76 0.09 65.58 05:57:01 0 25.14 0.00 6.47 3.09 0.08 65.22 05:57:01 1 25.11 0.00 6.34 3.73 0.08 64.74 05:57:01 2 25.43 0.00 6.10 1.94 0.08 66.45 05:57:01 3 25.39 0.00 6.77 4.89 0.08 62.87 05:57:01 4 26.48 0.00 6.29 4.02 0.10 63.11 05:57:01 5 23.66 0.00 6.01 2.29 0.08 67.96 05:57:01 6 25.60 0.00 5.46 1.13 0.07 67.75 05:57:01 7 26.37 0.00 6.09 0.98 0.10 66.46 05:58:01 all 55.43 0.00 7.41 0.22 0.09 36.86 05:58:01 0 58.40 0.00 7.65 0.13 0.10 33.71 05:58:01 1 53.80 0.00 7.20 0.02 0.08 38.90 05:58:01 2 52.15 0.00 6.85 0.00 0.07 40.93 05:58:01 3 55.79 0.00 8.25 0.37 0.08 35.51 05:58:01 4 58.12 0.00 7.50 0.02 0.08 34.27 05:58:01 5 57.79 0.00 7.28 0.02 0.08 34.83 05:58:01 6 54.51 0.00 7.10 0.79 0.07 37.54 05:58:01 7 52.87 0.00 7.46 0.35 0.10 39.22 05:59:01 all 9.13 0.20 3.61 1.05 0.07 85.95 05:59:01 0 5.98 0.00 4.41 1.16 0.07 88.38 05:59:01 1 9.11 0.00 2.81 0.35 0.07 87.66 05:59:01 2 8.80 0.00 3.12 0.15 0.08 87.84 05:59:01 3 12.66 0.00 4.06 4.46 0.08 78.73 05:59:01 4 7.13 0.00 3.06 0.15 0.07 89.59 05:59:01 5 9.15 0.00 3.45 1.26 0.08 86.05 05:59:01 6 7.62 0.00 4.38 0.81 0.07 87.12 05:59:01 7 12.57 1.61 3.58 0.05 0.08 82.10 06:00:01 all 10.66 0.00 1.23 0.56 0.07 87.49 06:00:01 0 20.54 0.00 1.74 0.28 0.07 77.37 06:00:01 1 17.42 0.00 1.67 1.27 0.08 79.57 06:00:01 2 4.94 0.00 1.05 1.42 0.10 92.48 06:00:01 3 5.83 0.00 0.87 0.47 0.10 92.73 06:00:01 4 13.45 0.00 1.27 0.62 0.05 84.61 06:00:01 5 7.19 0.00 0.85 0.05 0.07 91.84 06:00:01 6 14.48 0.00 1.69 0.30 0.07 83.47 06:00:01 7 1.36 0.00 0.64 0.03 0.07 97.91 Average: all 25.12 0.05 4.60 1.14 0.08 69.01 Average: 0 27.48 0.00 5.06 1.16 0.08 66.21 Average: 1 26.27 0.00 4.49 1.34 0.08 67.83 Average: 2 22.79 0.00 4.27 0.88 0.08 71.97 Average: 3 24.90 0.00 4.98 2.54 0.09 67.49 Average: 4 26.29 0.00 4.52 1.20 0.08 67.92 Average: 5 24.42 0.00 4.39 0.90 0.08 70.20 Average: 6 25.56 0.00 4.65 0.76 0.07 68.97 Average: 7 23.27 0.40 4.44 0.35 0.09 71.45