---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-7173 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/49f2810d5198d569541c10e6748445138b7b303359f901714766680533088eb2/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/3c3671c6255bc171a77d67b60193cdd427ea0a7f0529e051cd442dc56651bac6/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1636afe4eb840cebf143a978a6b9d8f530287bd161a39f72a8c105e184c5aaa0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/7e1ea046abefc702944043e13715c00399a94d2a4492075f26e43e94ef4983a5/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/5bd3ab242cf86d9be28611fad775c0c6c54ba7b9dfb83a2766fc49a4cee6078c/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1513 24209 1 6444 30196 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:3a:e3:9d brd ff:ff:ff:ff:ff:ff inet 10.30.107.51/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86076sec preferred_lft 86076sec inet6 fe80::f816:3eff:fe3a:e39d/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:17:09:52:45 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::42:17ff:fe09:5245/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether aa:8b:8a:3a:68:c4 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::a88b:8aff:fe3a:68c4/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether be:3e:08:25:13:54 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::bc3e:8ff:fe25:1354/64 scope link valid_lft forever preferred_lft forever 8: veth7a3237f6@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether b2:47:25:bb:3f:18 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::b047:25ff:febb:3f18/64 scope link valid_lft forever preferred_lft forever 9: vetheefbbaa8@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether e2:c5:a2:81:a3:88 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::e0c5:a2ff:fe81:a388/64 scope link valid_lft forever preferred_lft forever 10: veth491065e8@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether a6:06:60:21:4d:bd brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::a406:60ff:fe21:4dbd/64 scope link valid_lft forever preferred_lft forever 11: vethf521da24@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:de:10:52:4a:29 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::60de:10ff:fe52:4a29/64 scope link valid_lft forever preferred_lft forever 12: veth308b98d7@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 52:15:dd:e9:2b:a6 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::5015:ddff:fee9:2ba6/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-7173) 07/08/26 _x86_64_ (8 CPU) 23:27:31 LINUX RESTART (8 CPU) 23:28:02 tps rtps wtps bread/s bwrtn/s 23:29:01 766.45 87.17 679.27 3869.99 199336.93 23:30:01 171.45 0.00 171.45 0.00 36117.05 23:31:01 190.95 3.42 187.54 463.66 95307.85 23:32:01 97.13 20.79 76.34 818.53 10718.16 Average: 304.56 27.60 276.97 1277.22 84890.12 23:28:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 23:29:01 26694604 31090092 6244616 18.96 130812 4389944 2818340 8.56 2056720 3615892 561900 23:30:01 25613692 30976064 7325528 22.24 138388 5303300 3590024 10.90 2725540 3973444 482676 23:31:01 25611320 31019620 7327900 22.25 143356 5426556 3197192 9.71 2291468 4495512 464 23:32:01 25064220 30922136 7875000 23.91 152816 5835072 3293588 10.00 2502620 4791916 172812 Average: 25745959 31001978 7193261 21.84 141343 5238718 3224786 9.79 2394087 4219191 304463 23:28:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 23:29:01 docker0 142.72 204.59 11.45 1632.44 0.00 0.00 0.00 0.00 23:29:01 veth7a3237f6 1.78 2.51 0.19 0.62 0.00 0.00 0.00 0.00 23:29:01 ens3 914.39 651.99 12140.16 80.09 0.00 0.00 0.00 0.00 23:29:01 cni0 35.91 33.42 20.63 93.31 0.00 0.00 0.78 0.00 23:30:01 docker0 7.03 8.92 0.51 19.21 0.00 0.00 0.00 0.00 23:30:01 veth7a3237f6 2.73 3.12 0.25 0.27 0.00 0.00 0.00 0.00 23:30:01 ens3 11.30 9.65 19.85 1.54 0.00 0.00 0.00 0.00 23:30:01 cni0 10.76 12.11 2.15 1.44 0.00 0.00 0.18 0.00 23:31:01 docker0 0.05 0.08 0.00 0.01 0.00 0.00 0.00 0.00 23:31:01 veth7a3237f6 3.07 3.32 0.28 0.29 0.00 0.00 0.00 0.00 23:31:01 ens3 185.62 111.66 5372.02 10.51 0.00 0.00 0.00 0.00 23:31:01 cni0 11.73 13.15 2.38 1.47 0.00 0.00 0.07 0.00 23:32:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:32:01 veth7a3237f6 3.18 3.48 0.29 0.40 0.00 0.00 0.00 0.00 23:32:01 ens3 104.03 73.16 1625.41 12.10 0.00 0.00 0.00 0.00 23:32:01 cni0 12.41 13.71 2.43 2.00 0.00 0.00 0.12 0.00 Average: docker0 37.01 52.76 2.95 407.80 0.00 0.00 0.00 0.00 Average: veth7a3237f6 2.69 3.11 0.26 0.39 0.00 0.00 0.00 0.00 Average: ens3 301.27 209.77 4758.48 25.84 0.00 0.00 0.00 0.00 Average: cni0 17.63 18.03 6.84 24.26 0.00 0.00 0.28 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-7173) 07/08/26 _x86_64_ (8 CPU) 23:27:31 LINUX RESTART (8 CPU) 23:28:02 CPU %user %nice %system %iowait %steal %idle 23:29:01 all 17.35 0.75 6.34 3.56 0.07 71.92 23:29:01 0 25.69 2.12 7.47 5.25 0.09 59.38 23:29:01 1 16.52 0.00 6.26 3.16 0.09 73.98 23:29:01 2 15.97 0.00 6.12 1.25 0.07 76.59 23:29:01 3 17.43 3.83 6.54 2.43 0.07 69.70 23:29:01 4 17.67 0.02 5.85 2.24 0.05 74.18 23:29:01 5 15.03 0.00 6.40 3.94 0.07 74.56 23:29:01 6 15.39 0.00 4.94 6.52 0.07 73.08 23:29:01 7 15.17 0.00 7.05 3.71 0.07 74.01 23:30:01 all 51.11 0.00 6.80 0.29 0.09 41.71 23:30:01 0 54.16 0.00 6.71 0.03 0.08 39.01 23:30:01 1 50.93 0.00 7.23 0.98 0.08 40.77 23:30:01 2 50.45 0.00 6.74 0.07 0.10 42.65 23:30:01 3 49.51 0.00 7.40 0.67 0.08 42.33 23:30:01 4 52.61 0.00 6.60 0.05 0.10 40.64 23:30:01 5 48.09 0.00 6.42 0.07 0.07 45.36 23:30:01 6 51.15 0.00 6.91 0.25 0.08 41.60 23:30:01 7 51.95 0.00 6.47 0.20 0.08 41.30 23:31:01 all 33.23 0.23 6.97 0.98 0.09 58.51 23:31:01 0 31.92 1.82 8.23 0.05 0.08 57.89 23:31:01 1 33.22 0.00 6.63 0.49 0.08 59.58 23:31:01 2 31.33 0.00 7.26 0.13 0.08 61.19 23:31:01 3 32.26 0.00 6.99 4.31 0.08 56.35 23:31:01 4 36.67 0.00 6.59 0.94 0.08 55.72 23:31:01 5 34.88 0.00 5.90 0.90 0.12 58.21 23:31:01 6 32.77 0.00 6.81 0.46 0.08 59.88 23:31:01 7 32.81 0.00 7.35 0.52 0.08 59.23 23:32:01 all 8.73 0.00 1.71 0.50 0.07 88.99 23:32:01 0 10.74 0.00 1.87 0.33 0.07 86.98 23:32:01 1 13.01 0.00 1.81 0.35 0.08 84.75 23:32:01 2 6.16 0.00 1.57 1.46 0.07 90.74 23:32:01 3 9.04 0.00 1.99 0.27 0.07 88.63 23:32:01 4 14.18 0.00 2.06 1.00 0.07 82.69 23:32:01 5 5.66 0.00 1.25 0.12 0.03 92.94 23:32:01 6 4.00 0.00 1.54 0.07 0.08 94.31 23:32:01 7 7.07 0.00 1.58 0.42 0.08 90.85 Average: all 27.62 0.24 5.44 1.32 0.08 65.30 Average: 0 30.62 0.98 6.06 1.40 0.08 60.87 Average: 1 28.43 0.00 5.47 1.23 0.08 64.78 Average: 2 26.00 0.00 5.42 0.72 0.08 67.77 Average: 3 27.06 0.95 5.72 1.91 0.08 64.29 Average: 4 30.31 0.00 5.27 1.05 0.08 63.28 Average: 5 25.90 0.00 4.97 1.23 0.07 67.83 Average: 6 25.84 0.00 5.05 1.80 0.08 67.23 Average: 7 26.79 0.00 5.60 1.20 0.08 66.33