---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-46493 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 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 8.0K 3.2G 1% /run/user/1001 shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/5de42c5c254c7d364e690e69b33fd95d906a94d1bf9b4eaf6f18003dfa319832/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/4761aa9d90bd4d2bb5d4b3587fd95d3221208561f8e88468b51814c87a0bca29/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/ef776299244627932bc6a615c8dcf6862e09c5c15dcc751d510d0f26744b94d4/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/46605a67d9323f46eb43f49bf84bb7a426dda80b03639228b20411672807c62a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/435f2738fb532074211ddbba2274f7cf63f1cd7a63cdf894984c1de74d36e5a0/shm /dev/loop0 51M 51M 0 100% /snap/snapd/25202 /dev/loop1 67M 67M 0 100% /snap/core24/1151 /dev/loop2 20M 20M 0 100% /snap/helm/476 ---> free -m: total used free shared buff/cache available Mem: 32167 1629 23778 2 6759 30080 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:6e:80:2e brd ff:ff:ff:ff:ff:ff inet 10.30.107.63/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86036sec preferred_lft 86036sec inet6 fe80::f816:3eff:fe6e:802e/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:22:ef:da:46 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::42:22ff:feef:da46/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether e6:e4:c2:c7:10:73 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::e4e4:c2ff:fec7:1073/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether e2:3c:84:6a:76:06 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::e03c:84ff:fe6a:7606/64 scope link valid_lft forever preferred_lft forever 8: vethdf1d3ce8@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether c6:b9:65:a9:a5:01 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::c4b9:65ff:fea9:a501/64 scope link valid_lft forever preferred_lft forever 9: veth197a0046@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 56:29:0a:f1:42:f5 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::5429:aff:fef1:42f5/64 scope link valid_lft forever preferred_lft forever 10: veth6bf26747@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 36:63:ee:a1:77:85 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::3463:eeff:fea1:7785/64 scope link valid_lft forever preferred_lft forever 11: vethd571a13b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4a:e7:3a:ab:cd:e8 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::48e7:3aff:feab:cde8/64 scope link valid_lft forever preferred_lft forever 12: vethded63953@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 76:7f:1d:49:58:ac brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::747f:1dff:fe49:58ac/64 scope link valid_lft forever preferred_lft forever 19: br-67356578a091: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:3b:f1:3d:a8 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-67356578a091 valid_lft forever preferred_lft forever inet6 fe80::42:3bff:fef1:3da8/64 scope link valid_lft forever preferred_lft forever 23: veth6414021@if22: mtu 1500 qdisc noqueue master br-67356578a091 state UP group default link/ether ae:78:f9:38:2a:e2 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::ac78:f9ff:fe38:2ae2/64 scope link valid_lft forever preferred_lft forever 25: veth486f02d@if24: mtu 1500 qdisc noqueue master br-67356578a091 state UP group default link/ether 1e:1b:04:e3:33:bd brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::1c1b:4ff:fee3:33bd/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-46493) 09/17/25 _x86_64_ (8 CPU) 11:22:51 LINUX RESTART (8 CPU) 11:23:01 tps rtps wtps bread/s bwrtn/s 11:24:02 417.28 101.82 315.46 6376.54 122340.28 11:25:01 475.58 36.57 439.01 2042.50 138353.91 11:26:01 178.74 3.13 175.60 434.46 97067.42 11:27:01 137.19 0.87 136.33 133.18 71133.48 11:28:01 108.13 21.95 86.19 767.87 14127.51 Average: 262.68 32.85 229.82 1950.60 88438.16 11:23:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:24:02 29566808 31444148 3372412 10.24 46848 2143768 1702240 5.17 1481344 1595748 3188 11:25:01 26126188 30959012 6813032 20.68 132380 4764400 3795812 11.52 2457560 3762340 806236 11:26:01 26918584 31072180 6020636 18.28 134820 4231088 2490376 7.56 2098448 3436512 564 11:27:01 25347980 30976708 7591240 23.05 139104 5649128 3885384 11.80 2484300 4559504 788 11:28:01 24413960 30733440 8525260 25.88 188688 6243272 4292004 13.03 2982656 4930720 160860 Average: 26474704 31037098 6464516 19.63 128368 4606331 3233163 9.82 2300862 3656965 194327 11:23:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 11:24:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:24:02 ens3 490.10 334.26 2566.77 78.38 0.00 0.00 0.00 0.00 11:24:02 lo 72.82 72.82 27.27 27.27 0.00 0.00 0.00 0.00 11:25:01 cni0 46.86 43.26 37.85 110.63 0.00 0.00 0.88 0.00 11:25:01 veth6bf26747 3.07 3.98 0.31 0.74 0.00 0.00 0.00 0.00 11:25:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:25:01 vethdf1d3ce8 0.54 1.44 0.10 0.20 0.00 0.00 0.00 0.00 11:26:01 cni0 11.50 12.96 2.94 2.13 0.00 0.00 0.08 0.00 11:26:01 veth6bf26747 2.93 3.28 0.27 0.28 0.00 0.00 0.00 0.00 11:26:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:26:01 vethdf1d3ce8 0.13 0.18 0.01 0.02 0.00 0.00 0.00 0.00 11:27:01 cni0 11.86 13.18 3.02 2.18 0.00 0.00 0.08 0.00 11:27:01 veth486f02d 0.00 0.13 0.00 0.01 0.00 0.00 0.00 0.00 11:27:01 veth6bf26747 3.10 3.23 0.29 0.28 0.00 0.00 0.00 0.00 11:27:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:28:01 cni0 12.31 13.48 3.06 2.84 0.00 0.00 0.10 0.00 11:28:01 veth486f02d 0.20 0.27 0.02 0.02 0.00 0.00 0.00 0.00 11:28:01 veth6bf26747 3.20 3.38 0.29 0.37 0.00 0.00 0.00 0.00 11:28:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: cni0 16.41 16.49 9.28 23.27 0.00 0.00 0.23 0.00 Average: veth486f02d 0.04 0.08 0.00 0.01 0.00 0.00 0.00 0.00 Average: veth6bf26747 2.46 2.77 0.23 0.33 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-46493) 09/17/25 _x86_64_ (8 CPU) 11:22:51 LINUX RESTART (8 CPU) 11:23:01 CPU %user %nice %system %iowait %steal %idle 11:24:02 all 8.16 0.87 2.24 2.26 0.05 86.42 11:24:02 0 4.46 0.00 1.75 1.70 0.03 92.05 11:24:02 1 9.45 0.22 3.41 0.55 0.05 86.32 11:24:02 2 6.25 3.47 1.74 4.30 0.05 84.19 11:24:02 3 13.65 0.02 3.16 7.72 0.05 75.40 11:24:02 4 7.68 0.00 2.11 1.00 0.05 89.15 11:24:02 5 7.29 3.24 1.96 0.47 0.03 87.01 11:24:02 6 9.25 0.00 1.64 1.91 0.05 87.16 11:24:02 7 7.29 0.00 2.14 0.43 0.05 90.09 11:25:01 all 31.97 0.00 6.71 3.25 0.11 57.96 11:25:01 0 29.87 0.00 6.52 2.17 0.10 61.35 11:25:01 1 33.58 0.00 7.01 4.89 0.12 54.41 11:25:01 2 32.04 0.00 6.79 4.23 0.12 56.82 11:25:01 3 33.49 0.00 6.25 3.62 0.12 56.51 11:25:01 4 30.57 0.00 7.09 3.15 0.10 59.09 11:25:01 5 31.30 0.00 7.13 3.83 0.12 57.62 11:25:01 6 32.86 0.00 6.52 2.65 0.12 57.85 11:25:01 7 32.00 0.00 6.43 1.45 0.12 60.00 11:26:01 all 41.36 0.00 5.79 1.24 0.10 51.51 11:26:01 0 42.30 0.00 4.63 0.02 0.10 52.95 11:26:01 1 39.16 0.00 5.37 0.54 0.08 54.84 11:26:01 2 37.11 0.00 6.01 2.90 0.10 53.88 11:26:01 3 38.85 0.00 6.04 0.00 0.08 55.02 11:26:01 4 41.68 0.00 6.27 2.12 0.12 49.81 11:26:01 5 39.98 0.00 5.86 2.37 0.10 51.69 11:26:01 6 50.24 0.00 6.70 1.07 0.08 41.90 11:26:01 7 41.50 0.00 5.44 0.96 0.10 52.00 11:27:01 all 6.10 0.21 2.88 0.98 0.08 89.74 11:27:01 0 5.17 0.00 3.16 1.09 0.08 90.49 11:27:01 1 7.57 0.00 2.46 0.72 0.10 89.15 11:27:01 2 5.59 0.00 1.79 0.08 0.07 92.47 11:27:01 3 5.18 1.71 3.36 0.05 0.08 89.61 11:27:01 4 8.42 0.00 3.63 4.21 0.10 83.63 11:27:01 5 5.19 0.00 2.22 1.47 0.08 91.04 11:27:01 6 6.53 0.00 3.36 0.02 0.10 89.99 11:27:01 7 5.19 0.00 3.04 0.24 0.07 91.47 11:28:01 all 8.05 0.00 2.07 0.63 0.09 89.16 11:28:01 0 8.82 0.00 1.84 0.28 0.08 88.97 11:28:01 1 10.98 0.00 1.68 0.23 0.07 87.04 11:28:01 2 4.41 0.00 1.77 1.26 0.10 92.46 11:28:01 3 6.02 0.00 2.15 0.55 0.08 91.19 11:28:01 4 7.71 0.00 1.49 0.10 0.08 90.61 11:28:01 5 3.57 0.00 2.69 0.27 0.08 93.39 11:28:01 6 14.31 0.00 2.04 0.30 0.10 83.24 11:28:01 7 8.55 0.00 2.91 2.03 0.08 86.42 Average: all 19.05 0.22 3.92 1.66 0.09 75.06 Average: 0 18.04 0.00 3.57 1.05 0.08 77.27 Average: 1 20.05 0.04 3.97 1.37 0.08 74.49 Average: 2 16.99 0.70 3.60 2.55 0.09 76.07 Average: 3 19.39 0.35 4.19 2.39 0.08 73.61 Average: 4 19.14 0.00 4.10 2.11 0.09 74.56 Average: 5 17.38 0.66 3.95 1.67 0.08 76.26 Average: 6 22.58 0.00 4.04 1.18 0.09 72.11 Average: 7 18.82 0.00 3.98 1.02 0.08 76.11