---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6150 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/a920a6aa0d3229e8229b0b6e3b556aa86ddb566091d6f6704f3d44b43855389a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/96e831544dd8e98331aca4f7687f027058b31ca3cab84c322c5114bd20f84b4d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d87fd0fff83e9b0dbc49d81e21437853d51e01b2b3df1fee2886df1c18af77eb/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/3907d0d37b74a8b729a86bb4abcaff8c21404fa7848b52898c1372ab9183003b/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/53f1d215a53d45b0c920601cb928d1d164ff7f478df0b70b72842799f896ac7a/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1531 24169 1 6465 30178 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:ee:5f:02 brd ff:ff:ff:ff:ff:ff inet 10.30.106.85/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86090sec preferred_lft 86090sec inet6 fe80::f816:3eff:feee:5f02/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:3d:32:69:ce 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::42:3dff:fe32:69ce/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 5a:12:55:44:33:4e 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::5812:55ff:fe44:334e/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether ca:42:56:12:76:a8 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::c842:56ff:fe12:76a8/64 scope link valid_lft forever preferred_lft forever 6: vethcf285b1d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether b2:c7:5f:a5:af:b9 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::b0c7:5fff:fea5:afb9/64 scope link valid_lft forever preferred_lft forever 7: veth2c240f67@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 86:c6:d5:fa:ed:f7 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::84c6:d5ff:fefa:edf7/64 scope link valid_lft forever preferred_lft forever 8: veth34e62b8d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether b2:cb:fc:9b:29:26 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::b0cb:fcff:fe9b:2926/64 scope link valid_lft forever preferred_lft forever 13: veth83a59dc2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:d5:46:85:07:35 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::30d5:46ff:fe85:735/64 scope link valid_lft forever preferred_lft forever 14: veth14ee70fa@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether aa:3b:85:10:e6:7c brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::a83b:85ff:fe10:e67c/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-6150) 10/29/26 _x86_64_ (8 CPU) 09:39:20 LINUX RESTART (8 CPU) 09:40:02 tps rtps wtps bread/s bwrtn/s 09:41:01 464.77 84.29 380.48 3770.34 170746.11 09:42:01 138.46 0.00 138.46 0.00 80020.26 09:43:01 202.00 3.75 198.25 512.90 93289.04 09:44:01 102.30 20.40 81.90 762.27 12177.04 Average: 225.89 26.87 199.02 1250.85 88716.57 09:40:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:41:01 25639724 30660976 7299496 22.16 119184 5006068 3590224 10.90 2840204 3865256 800080 09:42:01 24909072 31057848 8030148 24.38 121648 6087364 2853388 8.66 3010252 4384152 1006864 09:43:01 25338228 30959544 7600992 23.08 127732 5650260 3275044 9.94 2424936 4625356 156296 09:44:01 24895276 30874252 8043944 24.42 139512 5961812 3322296 10.09 2547500 4912448 202060 Average: 25195575 30888155 7743645 23.51 127019 5676376 3260238 9.90 2705723 4446803 541325 09:40:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:41:01 veth34e62b8d 6.03 8.02 1.89 2.39 0.00 0.00 0.00 0.00 09:41:01 cni0 37.86 36.18 21.04 93.81 0.00 0.00 0.86 0.00 09:41:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:41:01 vethcf285b1d 2.27 3.37 0.24 0.68 0.00 0.00 0.00 0.00 09:42:01 veth34e62b8d 6.60 7.95 1.97 0.93 0.00 0.00 0.00 0.00 09:42:01 cni0 11.03 12.50 2.21 1.40 0.00 0.00 0.12 0.00 09:42:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:42:01 vethcf285b1d 2.82 3.20 0.26 0.27 0.00 0.00 0.00 0.00 09:43:01 veth34e62b8d 7.40 8.66 2.15 1.04 0.00 0.00 0.00 0.00 09:43:01 cni0 12.38 13.51 2.42 1.71 0.00 0.00 0.18 0.00 09:43:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:43:01 vethcf285b1d 3.13 3.48 0.29 0.36 0.00 0.00 0.00 0.00 09:44:01 veth34e62b8d 7.62 8.28 2.17 1.13 0.00 0.00 0.00 0.00 09:44:01 cni0 12.26 13.31 2.42 1.75 0.00 0.00 0.00 0.00 09:44:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:44:01 vethcf285b1d 3.05 3.38 0.28 0.33 0.00 0.00 0.00 0.00 Average: veth34e62b8d 6.91 8.23 2.05 1.37 0.00 0.00 0.00 0.00 Average: cni0 18.30 18.80 6.97 24.38 0.00 0.00 0.29 0.00 Average: flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: vethcf285b1d 2.82 3.36 0.27 0.41 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6150) 10/29/26 _x86_64_ (8 CPU) 09:39:20 LINUX RESTART (8 CPU) 09:40:02 CPU %user %nice %system %iowait %steal %idle 09:41:01 all 36.12 0.49 7.32 2.87 0.02 53.18 09:41:01 0 37.86 0.02 7.03 0.91 0.03 54.15 09:41:01 1 40.06 0.00 8.26 3.79 0.00 47.89 09:41:01 2 35.43 0.02 7.01 1.85 0.02 55.67 09:41:01 3 35.18 0.00 7.20 2.14 0.00 55.48 09:41:01 4 33.95 0.00 7.30 2.77 0.02 55.97 09:41:01 5 34.00 0.00 7.65 5.43 0.02 52.90 09:41:01 6 36.47 2.38 7.09 3.32 0.02 50.73 09:41:01 7 35.98 1.48 7.05 2.80 0.02 52.68 09:42:01 all 55.06 0.00 7.50 0.54 0.01 36.89 09:42:01 0 51.92 0.00 7.57 0.30 0.00 40.21 09:42:01 1 60.73 0.00 7.61 0.00 0.02 31.64 09:42:01 2 57.08 0.00 7.79 0.67 0.02 34.44 09:42:01 3 53.20 0.00 7.04 3.21 0.02 36.52 09:42:01 4 54.95 0.00 6.88 0.02 0.02 38.14 09:42:01 5 54.92 0.00 7.25 0.00 0.00 37.83 09:42:01 6 53.07 0.00 7.87 0.07 0.02 38.98 09:42:01 7 54.64 0.00 7.97 0.00 0.02 37.37 09:43:01 all 9.78 0.19 4.03 1.23 0.01 84.77 09:43:01 0 10.64 0.00 3.63 0.54 0.02 85.17 09:43:01 1 11.15 0.30 5.23 0.45 0.02 82.85 09:43:01 2 14.60 0.00 4.20 2.95 0.02 78.22 09:43:01 3 8.40 0.00 3.45 1.15 0.02 86.98 09:43:01 4 7.67 0.00 4.02 1.30 0.02 86.98 09:43:01 5 10.45 0.00 3.58 0.27 0.02 85.70 09:43:01 6 7.38 0.00 4.55 0.12 0.00 87.95 09:43:01 7 7.97 1.23 3.50 3.06 0.00 84.25 09:44:01 all 10.70 0.00 1.28 0.73 0.02 87.27 09:44:01 0 7.28 0.00 1.28 0.05 0.02 91.37 09:44:01 1 8.42 0.00 1.34 1.10 0.03 89.10 09:44:01 2 5.38 0.00 1.14 0.52 0.02 92.95 09:44:01 3 8.60 0.00 1.46 0.77 0.02 89.15 09:44:01 4 4.87 0.00 0.72 0.18 0.00 94.23 09:44:01 5 5.26 0.00 1.05 0.23 0.02 93.43 09:44:01 6 24.64 0.00 1.79 2.58 0.02 70.98 09:44:01 7 21.16 0.00 1.50 0.42 0.02 76.91 Average: all 27.85 0.17 5.01 1.33 0.02 65.62 Average: 0 26.85 0.00 4.86 0.45 0.02 67.82 Average: 1 30.02 0.08 5.59 1.32 0.02 62.98 Average: 2 28.07 0.00 5.02 1.49 0.02 65.40 Average: 3 26.28 0.00 4.77 1.82 0.01 67.12 Average: 4 25.31 0.00 4.71 1.06 0.01 68.91 Average: 5 26.04 0.00 4.86 1.46 0.01 67.63 Average: 6 30.37 0.59 5.31 1.51 0.01 62.21 Average: 7 29.89 0.67 4.99 1.56 0.01 62.87