---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4728 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/90b39eb3409fab41f75b8435071ac19d325589fab201be66d7c50eb8d6a96c5d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/fc570740691045d7dde6e25a02c014337b86180bbd0a81a4f9492460a43953c7/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/9a71d5ac46dd57d2f7f7e6286fc0041e491cb79fad37448c7def64e180c8b49f/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/89427743d3daca6d45e7f04635852f5beae3b5c5130c831b2f7dcab33b14be50/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/cb83eb0ad8f93b6e93039625e686e452505d0b7da86a5a41c25c39ddcc78d23f/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 1628 24003 2 6534 30081 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:27:7e:d2 brd ff:ff:ff:ff:ff:ff inet 10.30.107.208/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86082sec preferred_lft 86082sec inet6 fe80::f816:3eff:fe27:7ed2/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:b3:92:ee:05 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:b3ff:fe92:ee05/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 36:30:2d:ca:55:0f 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::3430:2dff:feca:550f/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 82:65:f4:ab:86:b2 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::8065:f4ff:feab:86b2/64 scope link valid_lft forever preferred_lft forever 6: veth71581662@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 7a:a2:4d:82:05:ef brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::78a2:4dff:fe82:5ef/64 scope link valid_lft forever preferred_lft forever 7: vetha0604fe1@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 8e:01:6f:e4:92:1b brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::8c01:6fff:fee4:921b/64 scope link valid_lft forever preferred_lft forever 8: veth0f7918ef@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 0a:ea:5d:fd:12:4c brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::8ea:5dff:fefd:124c/64 scope link valid_lft forever preferred_lft forever 13: veth684d646c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ce:57:63:ad:de:d0 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::cc57:63ff:fead:ded0/64 scope link valid_lft forever preferred_lft forever 14: veth59e99edd@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether f2:f8:93:ad:cd:7b brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::f0f8:93ff:fead:cd7b/64 scope link valid_lft forever preferred_lft forever 19: br-a7971984b2e7: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:7b:92:3c:e6 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-a7971984b2e7 valid_lft forever preferred_lft forever inet6 fe80::42:7bff:fe92:3ce6/64 scope link valid_lft forever preferred_lft forever 21: vethb0e575a@if20: mtu 1500 qdisc noqueue master br-a7971984b2e7 state UP group default link/ether 12:53:52:9c:4f:04 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::1053:52ff:fe9c:4f04/64 scope link valid_lft forever preferred_lft forever 23: veth336509a@if22: mtu 1500 qdisc noqueue master br-a7971984b2e7 state UP group default link/ether 42:3b:59:e7:29:10 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::403b:59ff:fee7:2910/64 scope link valid_lft forever preferred_lft forever 25: vethb9ef67f@if24: mtu 1500 qdisc noqueue master br-a7971984b2e7 state UP group default link/ether b6:9d:ff:03:b4:23 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::b49d:ffff:fe03:b423/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4728) 10/23/25 _x86_64_ (8 CPU) 11:00:10 LINUX RESTART (8 CPU) 11:01:02 tps rtps wtps bread/s bwrtn/s 11:02:01 479.89 43.29 436.60 2246.70 169905.79 11:03:01 136.92 0.02 136.90 0.13 55526.16 11:04:01 199.85 5.78 194.07 617.23 87992.80 11:05:01 110.35 20.48 89.87 758.81 8127.96 Average: 230.71 17.28 213.43 900.12 80013.42 11:01:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:02:01 25987488 30858204 6951732 21.10 129828 4821176 3731640 11.33 2572596 3777128 909032 11:03:01 24220204 30036700 8719016 26.47 131844 5726476 4009060 12.17 3837480 4244116 712264 11:04:01 25166460 30874532 7772760 23.60 151104 5707696 4566152 13.86 2590796 4611324 3160 11:05:01 24622072 30779088 8317148 25.25 187388 6083584 4440252 13.48 2771968 4933964 183496 Average: 24999056 30637131 7940164 24.11 150041 5584733 4186776 12.71 2943210 4391633 451988 11:01:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 11:02:01 ens3 561.98 370.11 11072.88 35.61 0.00 0.00 0.00 0.00 11:02:01 veth0f7918ef 5.83 7.62 2.32 2.82 0.00 0.00 0.00 0.00 11:02:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:02:01 veth684d646c 0.14 0.49 0.01 0.04 0.00 0.00 0.00 0.00 11:03:01 ens3 7.95 3.38 6.59 0.60 0.00 0.00 0.00 0.00 11:03:01 veth0f7918ef 6.78 8.13 2.63 1.63 0.00 0.00 0.00 0.00 11:03:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:03:01 veth684d646c 0.03 0.10 0.00 0.01 0.00 0.00 0.00 0.00 11:04:01 ens3 429.23 295.95 7932.99 23.32 0.00 0.00 0.00 0.00 11:04:01 veth336509a 0.27 0.52 1.00 0.05 0.00 0.00 0.00 0.00 11:04:01 veth0f7918ef 7.32 8.37 2.78 1.70 0.00 0.00 0.00 0.00 11:04:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:05:01 ens3 103.80 77.34 1452.02 13.99 0.00 0.00 0.00 0.00 11:05:01 veth336509a 0.47 0.65 0.12 0.18 0.00 0.00 0.00 0.00 11:05:01 veth0f7918ef 7.43 8.33 2.78 1.70 0.00 0.00 0.00 0.00 11:05:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: ens3 274.53 185.92 5091.09 18.31 0.00 0.00 0.00 0.00 Average: veth336509a 0.18 0.29 0.28 0.06 0.00 0.00 0.00 0.00 Average: veth0f7918ef 6.84 8.11 2.63 1.96 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-4728) 10/23/25 _x86_64_ (8 CPU) 11:00:10 LINUX RESTART (8 CPU) 11:01:02 CPU %user %nice %system %iowait %steal %idle 11:02:01 all 37.70 0.00 7.98 3.17 0.09 51.07 11:02:01 0 40.02 0.00 7.41 3.09 0.09 49.39 11:02:01 1 35.93 0.00 8.69 1.92 0.09 53.37 11:02:01 2 40.30 0.00 7.49 3.61 0.07 48.53 11:02:01 3 36.37 0.00 8.40 4.76 0.10 50.36 11:02:01 4 37.46 0.00 8.71 2.12 0.07 51.65 11:02:01 5 36.37 0.00 7.95 2.03 0.09 53.56 11:02:01 6 37.73 0.00 7.57 6.04 0.07 48.58 11:02:01 7 37.45 0.00 7.60 1.75 0.07 53.13 11:03:01 all 44.56 0.00 6.04 0.48 0.11 48.81 11:03:01 0 42.50 0.00 5.94 0.34 0.08 51.13 11:03:01 1 43.24 0.00 5.78 0.15 0.13 50.69 11:03:01 2 42.53 0.00 5.58 0.03 0.12 51.74 11:03:01 3 44.72 0.00 6.36 1.77 0.10 47.06 11:03:01 4 45.38 0.00 5.94 0.00 0.12 48.56 11:03:01 5 47.76 0.00 6.51 1.01 0.08 44.64 11:03:01 6 43.73 0.00 6.37 0.22 0.13 49.55 11:03:01 7 46.65 0.00 5.86 0.29 0.10 47.10 11:04:01 all 7.63 0.23 4.33 1.62 0.08 86.10 11:04:01 0 8.98 0.00 5.74 4.70 0.08 80.50 11:04:01 1 5.85 1.83 3.95 1.46 0.08 86.83 11:04:01 2 7.63 0.00 3.14 0.20 0.07 88.96 11:04:01 3 7.45 0.00 4.27 0.67 0.10 87.51 11:04:01 4 8.62 0.00 3.55 0.29 0.08 87.46 11:04:01 5 8.61 0.00 5.32 2.37 0.08 83.61 11:04:01 6 7.30 0.00 4.52 0.15 0.07 87.96 11:04:01 7 6.65 0.00 4.18 3.12 0.08 85.96 11:05:01 all 11.31 0.00 1.55 0.58 0.08 86.47 11:05:01 0 16.96 0.00 1.74 0.50 0.08 80.72 11:05:01 1 12.66 0.00 1.54 0.60 0.08 85.12 11:05:01 2 6.25 0.00 1.66 1.02 0.08 90.98 11:05:01 3 22.79 0.00 2.04 0.47 0.07 74.63 11:05:01 4 11.94 0.00 1.40 0.30 0.08 86.27 11:05:01 5 2.89 0.00 1.06 0.89 0.08 95.08 11:05:01 6 14.26 0.00 2.07 0.22 0.05 83.40 11:05:01 7 2.69 0.00 0.92 0.69 0.07 95.63 Average: all 25.23 0.06 4.96 1.45 0.09 68.22 Average: 0 27.04 0.00 5.19 2.15 0.08 65.53 Average: 1 24.34 0.46 4.96 1.03 0.10 69.11 Average: 2 24.08 0.00 4.45 1.21 0.08 70.18 Average: 3 27.78 0.00 5.25 1.90 0.09 64.98 Average: 4 25.77 0.00 4.87 0.67 0.09 68.60 Average: 5 23.85 0.00 5.20 1.57 0.08 69.29 Average: 6 25.68 0.00 5.12 1.63 0.08 67.49 Average: 7 23.29 0.00 4.62 1.46 0.08 70.55