---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-5979 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 2.1M 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 4.0K 3.2G 1% /run/user/1001 shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a931ae1962d3a9b52580052aa3fddedb8b41ce377f39e8abfc8e3206a27b4c25/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e1b60f3d851f754281c4e68943a4810ff40318f9b874296d0f75da7c29268845/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/2fbda5f1db03087a14b8955a20b1283e237ff18c59fda0e19835f8fdb3231d30/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6945e62c164b56f0708afb504fdfa9a0148a1dd6eaad3b7050aba008c0034a17/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/72ad4c3e62fcd20b3fba9b0e851c92795ea2516ff1d1e4a2147625c06b1fe52a/shm /dev/loop0 51M 51M 0 100% /snap/snapd/25577 /dev/loop1 67M 67M 0 100% /snap/core24/1196 /dev/loop2 20M 20M 0 100% /snap/helm/476 ---> free -m: total used free shared buff/cache available Mem: 32167 1657 23850 2 6659 30052 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:b8:f0:fe brd ff:ff:ff:ff:ff:ff inet 10.30.107.89/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86035sec preferred_lft 86035sec inet6 fe80::f816:3eff:feb8:f0fe/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:3f:bf:6b:c1 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::42:3fff:febf:6bc1/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 26:da:19:9d:22:d0 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::24da:19ff:fe9d:22d0/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether b6:b7:ab:af:9d:a0 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::b4b7:abff:feaf:9da0/64 scope link valid_lft forever preferred_lft forever 7: vetheb9f8c42@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether c2:da:a2:36:e1:72 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::c0da:a2ff:fe36:e172/64 scope link valid_lft forever preferred_lft forever 9: veth0e9e8130@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether da:00:1e:3f:3e:c4 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::d800:1eff:fe3f:3ec4/64 scope link valid_lft forever preferred_lft forever 10: veth714e77c1@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4a:57:08:5b:38:cc brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::4857:8ff:fe5b:38cc/64 scope link valid_lft forever preferred_lft forever 13: veth7892860f@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 86:92:e4:b9:27:9d brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::8492:e4ff:feb9:279d/64 scope link valid_lft forever preferred_lft forever 14: vetha042bc06@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether de:f5:b7:03:90:14 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::dcf5:b7ff:fe03:9014/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-5979) 10/24/25 _x86_64_ (8 CPU) 06:11:17 LINUX RESTART (8 CPU) 06:12:02 tps rtps wtps bread/s bwrtn/s 06:13:01 322.86 83.51 239.35 3745.01 85604.46 06:14:01 273.54 1.03 272.51 11.20 83260.65 06:15:01 134.75 3.37 131.38 452.80 97181.73 06:16:01 137.84 19.76 118.08 737.49 64107.30 06:17:01 130.63 2.68 127.95 94.52 36345.28 Average: 199.57 21.89 177.68 1000.22 73263.33 06:12:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:13:01 28029680 31206996 4909540 14.90 84884 3343144 2566236 7.79 1758248 2721484 151228 06:14:01 25269404 30247512 7669816 23.28 129452 4929160 3680676 11.17 3031724 4029816 406980 06:15:01 26044080 30973720 6895140 20.93 132668 4992360 2807416 8.52 2318540 4073508 84 06:16:01 24804496 30792784 8134724 24.70 180168 5948284 3640176 11.05 2743988 4810072 21968 06:17:01 24465380 30807220 8473840 25.73 195404 6245616 3610796 10.96 2758628 5091540 121224 Average: 25722608 30805646 7216612 21.91 144515 5091713 3261060 9.90 2522226 4145284 140297 06:12:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:13:01 veth714e77c1 0.10 0.27 0.01 0.02 0.00 0.00 0.00 0.00 06:13:01 cni0 0.49 0.12 0.03 0.01 0.00 0.00 0.46 0.00 06:13:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:13:01 veth6ef207f 24.23 29.44 2.49 8.52 0.00 0.00 0.00 0.00 06:14:01 veth714e77c1 3.35 3.93 0.34 0.73 0.00 0.00 0.00 0.00 06:14:01 cni0 45.97 43.89 37.33 109.05 0.00 0.00 0.47 0.00 06:14:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:14:01 veth6ef207f 98.88 168.04 9.13 1241.54 0.00 0.00 0.00 0.10 06:15:01 veth714e77c1 3.07 3.30 0.28 0.29 0.00 0.00 0.00 0.00 06:15:01 cni0 11.68 13.25 3.01 2.18 0.00 0.00 0.07 0.00 06:15:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:15:01 vetha042bc06 5.63 5.13 0.89 2.23 0.00 0.00 0.00 0.00 06:16:01 veth714e77c1 3.17 3.50 0.29 0.40 0.00 0.00 0.00 0.00 06:16:01 cni0 12.33 13.41 3.06 2.67 0.00 0.00 0.18 0.00 06:16:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:16:01 vetha042bc06 1.62 1.80 0.13 0.47 0.00 0.00 0.00 0.00 06:17:01 veth714e77c1 3.03 3.27 0.28 0.28 0.00 0.00 0.00 0.00 06:17:01 cni0 12.01 13.30 3.03 2.49 0.00 0.00 0.00 0.00 06:17:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:17:01 vetha042bc06 1.40 1.53 0.11 0.41 0.00 0.00 0.00 0.00 Average: veth714e77c1 2.55 2.86 0.24 0.35 0.00 0.00 0.00 0.00 Average: cni0 16.54 16.84 9.32 23.35 0.00 0.00 0.23 0.00 Average: flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: vetha042bc06 1.73 1.70 0.23 0.62 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-5979) 10/24/25 _x86_64_ (8 CPU) 06:11:17 LINUX RESTART (8 CPU) 06:12:02 CPU %user %nice %system %iowait %steal %idle 06:13:01 all 9.64 0.64 3.71 8.12 0.07 77.83 06:13:01 0 9.39 1.62 4.01 6.50 0.07 78.41 06:13:01 1 9.57 3.45 4.54 15.56 0.07 66.80 06:13:01 2 8.55 0.02 3.52 1.93 0.07 85.92 06:13:01 3 7.95 0.00 3.80 2.35 0.07 85.83 06:13:01 4 7.15 0.00 3.87 9.29 0.09 79.60 06:13:01 5 16.50 0.00 3.28 12.31 0.07 67.85 06:13:01 6 10.62 0.00 3.61 13.63 0.07 72.07 06:13:01 7 7.40 0.00 3.04 3.40 0.05 86.11 06:14:01 all 36.29 0.00 5.53 7.04 0.14 51.00 06:14:01 0 33.36 0.00 5.75 7.39 0.13 53.37 06:14:01 1 39.79 0.00 5.62 7.40 0.15 47.04 06:14:01 2 36.43 0.00 5.46 4.44 0.12 53.55 06:14:01 3 36.12 0.00 5.47 7.17 0.19 51.05 06:14:01 4 37.17 0.00 5.28 6.22 0.13 51.20 06:14:01 5 34.54 0.00 5.77 5.58 0.15 53.96 06:14:01 6 37.91 0.00 5.28 8.74 0.12 47.96 06:14:01 7 35.01 0.00 5.60 9.39 0.13 49.87 06:15:01 all 29.90 0.22 4.92 4.36 0.09 60.50 06:15:01 0 27.07 0.00 4.59 0.29 0.10 67.95 06:15:01 1 29.23 0.00 4.31 0.03 0.12 66.31 06:15:01 2 32.45 0.00 4.85 1.57 0.08 61.05 06:15:01 3 30.32 0.00 4.07 4.75 0.08 60.78 06:15:01 4 29.67 0.35 5.87 1.60 0.08 62.42 06:15:01 5 33.17 1.43 5.14 1.58 0.10 58.58 06:15:01 6 28.91 0.00 5.56 16.78 0.10 48.65 06:15:01 7 28.41 0.00 4.99 8.38 0.07 58.15 06:16:01 all 6.53 0.00 3.13 2.83 0.09 87.42 06:16:01 0 3.76 0.00 3.69 0.17 0.07 92.32 06:16:01 1 4.09 0.00 3.40 0.03 0.08 92.40 06:16:01 2 6.87 0.00 3.33 7.41 0.12 82.27 06:16:01 3 8.11 0.00 2.59 0.74 0.10 88.47 06:16:01 4 7.97 0.00 3.41 8.76 0.12 79.74 06:16:01 5 7.00 0.00 2.80 0.74 0.10 89.35 06:16:01 6 9.68 0.00 3.36 4.31 0.10 82.55 06:16:01 7 4.74 0.00 2.49 0.54 0.08 92.16 06:17:01 all 11.99 0.00 1.39 1.29 0.07 85.26 06:17:01 0 15.43 0.00 1.46 0.58 0.07 82.46 06:17:01 1 4.02 0.00 1.18 1.37 0.07 93.36 06:17:01 2 15.64 0.00 1.89 0.50 0.08 81.89 06:17:01 3 20.86 0.00 1.77 1.84 0.05 75.49 06:17:01 4 7.41 0.00 1.10 0.60 0.07 90.82 06:17:01 5 11.26 0.00 1.32 0.37 0.08 86.97 06:17:01 6 17.15 0.00 1.47 0.58 0.07 80.73 06:17:01 7 4.13 0.00 0.87 4.52 0.07 90.41 Average: all 18.88 0.17 3.73 4.71 0.09 72.41 Average: 0 17.81 0.32 3.90 2.97 0.09 74.91 Average: 1 17.33 0.68 3.80 4.84 0.10 73.26 Average: 2 20.01 0.00 3.81 3.17 0.09 72.92 Average: 3 20.69 0.00 3.54 3.36 0.10 72.31 Average: 4 17.91 0.07 3.90 5.27 0.10 72.75 Average: 5 20.49 0.29 3.66 4.08 0.10 71.38 Average: 6 20.86 0.00 3.85 8.77 0.09 66.43 Average: 7 15.94 0.00 3.40 5.25 0.08 75.34