---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-46374 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/e2ca73f9b1b41692936209d586f32f248d76127c5e873a26c50ac6490a794342/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f60cbce3eba199cf11eb703a7806991221af3945c238d1d8ea849503a970bfaf/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/7683f349af243cb885881db1abc287db143ab1a5a85c7beb0728486002a405e9/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6afde56e8aed834133f8f5b1556f1362fa85e571a6aa7581a7cc226b83285d14/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/83b1deca3bc9ecf46513b924f989a17f67a32a2ef8cced7e9aa30a474677a473/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1596 24054 1 6516 30114 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:55:8e:64 brd ff:ff:ff:ff:ff:ff inet 10.30.107.211/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86076sec preferred_lft 86076sec inet6 fe80::f816:3eff:fe55:8e64/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:ee:ea:54:9a 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:eeff:feea:549a/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether a2:66:09:cd:d3:8f 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::a066:9ff:fecd:d38f/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 6e:e5:e8:55:82:4d 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::6ce5:e8ff:fe55:824d/64 scope link valid_lft forever preferred_lft forever 6: veth1308f2d3@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether fe:f3:0a:c8:af:b2 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::fcf3:aff:fec8:afb2/64 scope link valid_lft forever preferred_lft forever 7: veth3b8997cc@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 96:89:f4:88:95:b5 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::9489:f4ff:fe88:95b5/64 scope link valid_lft forever preferred_lft forever 10: vethce3fbcda@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 12:63:f6:21:ce:1d brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::1063:f6ff:fe21:ce1d/64 scope link valid_lft forever preferred_lft forever 13: veth738daeb4@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether f6:91:5b:41:ca:a8 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::f491:5bff:fe41:caa8/64 scope link valid_lft forever preferred_lft forever 14: veth4bbf2122@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 7a:45:ff:5d:d1:31 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::7845:ffff:fe5d:d131/64 scope link valid_lft forever preferred_lft forever 19: br-4b902780ee61: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:99:d5:01:68 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-4b902780ee61 valid_lft forever preferred_lft forever inet6 fe80::42:99ff:fed5:168/64 scope link valid_lft forever preferred_lft forever 23: veth463f2d4@if22: mtu 1500 qdisc noqueue master br-4b902780ee61 state UP group default link/ether 12:90:53:82:da:9f brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::1090:53ff:fe82:da9f/64 scope link valid_lft forever preferred_lft forever 25: veth62d6a42@if24: mtu 1500 qdisc noqueue master br-4b902780ee61 state UP group default link/ether 46:af:0f:9f:bb:49 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::44af:fff:fe9f:bb49/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-46374) 09/17/25 _x86_64_ (8 CPU) 06:17:39 LINUX RESTART (8 CPU) 06:18:03 tps rtps wtps bread/s bwrtn/s 06:19:01 400.48 121.12 279.37 6591.42 113299.22 06:20:01 449.85 3.75 446.10 367.74 144901.83 06:21:01 131.63 3.27 128.36 440.99 79804.43 06:22:01 193.02 20.70 172.32 822.66 76393.67 06:23:01 107.03 1.40 105.63 90.78 9857.02 Average: 255.44 29.43 226.01 1629.60 84662.36 06:18:03 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:19:01 29051932 31327920 3887288 11.80 55320 2517088 2183660 6.63 1600824 1945536 335084 06:20:01 26275340 31083424 6663880 20.23 130460 4775492 2801304 8.50 2148160 3911872 422456 06:21:01 26500020 31067112 6439200 19.55 131952 4645468 2592784 7.87 2226284 3726928 456112 06:22:01 24858672 30784488 8080548 24.53 142236 5928292 3924588 11.91 2697836 4818084 65516 06:23:01 24656952 30861632 8282268 25.14 149168 6167952 3862324 11.73 2634072 5049328 129500 Average: 26268583 31024915 6670637 20.25 121827 4806858 3072932 9.33 2261435 3890350 281734 06:18:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:19:01 lo 161.37 161.37 82.85 82.85 0.00 0.00 0.00 0.00 06:19:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:19:01 ens3 653.40 482.52 6109.98 91.37 0.00 0.00 0.00 0.00 06:20:01 cni0 46.08 43.10 37.30 108.89 0.00 0.00 0.93 0.00 06:20:01 veth738daeb4 0.15 0.47 0.01 0.04 0.00 0.00 0.00 0.00 06:20:01 docker0 128.66 135.20 10.26 1247.81 0.00 0.00 0.00 0.00 06:20:01 veth3b8997cc 3.23 4.43 0.33 0.79 0.00 0.00 0.00 0.00 06:21:01 cni0 11.46 12.96 2.94 2.14 0.00 0.00 0.07 0.00 06:21:01 veth738daeb4 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 06:21:01 docker0 0.38 0.55 0.03 0.64 0.00 0.00 0.00 0.00 06:21:01 veth3b8997cc 2.95 3.18 0.27 0.28 0.00 0.00 0.00 0.00 06:22:01 cni0 11.70 13.53 3.02 2.20 0.00 0.00 0.07 0.00 06:22:01 veth738daeb4 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 06:22:01 docker0 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 06:22:01 veth3b8997cc 3.03 3.47 0.28 0.30 0.00 0.00 0.00 0.00 06:23:01 cni0 11.73 13.18 3.00 2.18 0.00 0.00 0.02 0.00 06:23:01 veth738daeb4 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 06:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:23:01 veth3b8997cc 3.05 3.25 0.28 0.28 0.00 0.00 0.00 0.00 Average: cni0 16.31 16.67 9.31 23.24 0.00 0.00 0.22 0.00 Average: veth738daeb4 0.04 0.12 0.00 0.01 0.00 0.00 0.00 0.00 Average: docker0 25.98 27.35 2.07 251.40 0.00 0.00 0.00 0.00 Average: veth3b8997cc 2.47 2.89 0.23 0.33 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-46374) 09/17/25 _x86_64_ (8 CPU) 06:17:39 LINUX RESTART (8 CPU) 06:18:03 CPU %user %nice %system %iowait %steal %idle 06:19:01 all 10.42 0.64 2.59 4.01 0.06 82.27 06:19:01 0 15.49 0.00 2.54 1.82 0.05 80.10 06:19:01 1 6.96 0.00 2.89 1.83 0.05 88.26 06:19:01 2 8.17 3.38 2.72 6.56 0.07 79.10 06:19:01 3 16.89 1.75 2.39 0.40 0.07 78.51 06:19:01 4 8.71 0.00 1.90 0.54 0.03 88.82 06:19:01 5 11.10 0.00 3.72 11.19 0.07 73.92 06:19:01 6 10.27 0.00 2.44 9.58 0.09 77.62 06:19:01 7 5.78 0.00 2.16 0.24 0.05 91.76 06:20:01 all 38.51 0.00 6.96 7.14 0.11 47.29 06:20:01 0 37.37 0.00 6.50 3.76 0.10 52.27 06:20:01 1 38.03 0.00 6.90 3.97 0.12 50.98 06:20:01 2 40.80 0.00 7.37 10.05 0.12 41.66 06:20:01 3 38.47 0.00 7.16 16.42 0.10 37.85 06:20:01 4 37.77 0.00 7.22 4.38 0.12 50.51 06:20:01 5 38.66 0.00 6.82 2.95 0.10 51.47 06:20:01 6 37.95 0.00 6.79 12.26 0.10 42.91 06:20:01 7 39.00 0.00 6.91 3.34 0.10 50.65 06:21:01 all 31.18 0.22 5.00 1.89 0.09 61.61 06:21:01 0 33.74 0.97 5.47 1.78 0.08 57.96 06:21:01 1 29.28 0.81 4.72 1.82 0.08 63.29 06:21:01 2 35.13 0.00 4.89 1.94 0.08 57.95 06:21:01 3 29.32 0.00 4.73 3.96 0.08 61.90 06:21:01 4 31.11 0.00 4.71 0.00 0.10 64.08 06:21:01 5 31.16 0.00 5.27 1.80 0.08 61.68 06:21:01 6 28.51 0.00 5.04 0.05 0.08 66.32 06:21:01 7 31.19 0.00 5.15 3.77 0.10 59.79 06:22:01 all 9.71 0.00 3.05 2.45 0.08 84.70 06:22:01 0 11.64 0.00 2.61 0.74 0.08 84.93 06:22:01 1 14.68 0.00 2.74 7.04 0.07 75.47 06:22:01 2 7.65 0.00 3.28 1.36 0.07 87.64 06:22:01 3 10.45 0.00 2.29 1.62 0.07 85.57 06:22:01 4 7.40 0.00 3.05 0.17 0.08 89.30 06:22:01 5 7.89 0.00 3.03 1.57 0.08 87.42 06:22:01 6 8.31 0.00 2.77 7.03 0.08 81.81 06:22:01 7 9.67 0.00 4.65 0.10 0.08 85.49 06:23:01 all 11.21 0.00 1.04 0.53 0.08 87.14 06:23:01 0 6.95 0.00 0.95 0.85 0.08 91.16 06:23:01 1 33.92 0.00 2.29 0.87 0.10 62.82 06:23:01 2 13.62 0.00 1.27 0.57 0.08 84.46 06:23:01 3 19.21 0.00 1.25 1.42 0.07 78.06 06:23:01 4 5.55 0.00 0.65 0.40 0.07 93.33 06:23:01 5 3.11 0.00 0.69 0.05 0.08 96.07 06:23:01 6 4.45 0.00 0.72 0.03 0.08 94.71 06:23:01 7 2.84 0.00 0.52 0.03 0.05 96.56 Average: all 20.24 0.17 3.73 3.20 0.08 72.58 Average: 0 21.05 0.20 3.62 1.79 0.08 73.26 Average: 1 24.67 0.16 3.91 3.11 0.08 68.06 Average: 2 21.14 0.66 3.91 4.08 0.08 70.13 Average: 3 22.89 0.34 3.57 4.77 0.08 68.36 Average: 4 18.12 0.00 3.51 1.10 0.08 77.20 Average: 5 18.41 0.00 3.90 3.46 0.08 74.15 Average: 6 17.92 0.00 3.55 5.76 0.09 72.68 Average: 7 17.72 0.00 3.88 1.50 0.08 76.82