---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-3220 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 1.6M 3.2G 1% /run /dev/vda1 155G 12G 144G 8% / 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/4684bb7ebffaf9a9f6950c061fe6ab79b370bf5fba6cbbd56c54399d52ac36a6/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/887b789b37407c7fcd5fac6007c95bdd2a352aa4ce2de0d08c6df873fd792ada/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/b4b2d1bedbe385af5e88d3b262acc557b95f07e0a74b766bdbc078b9bbb08f84/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/693e517ed9cfb7e882c5b48ce3cf38f8bc4be601a7b4147c942c035ffec7bf3c/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/ef6a181940326d680af076b5ab3d343b2eb6b75de2c2d041fb8459b9dd593965/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1396 26653 1 4116 30313 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:6d:2b:43 brd ff:ff:ff:ff:ff:ff inet 10.30.106.176/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86130sec preferred_lft 86130sec inet6 fe80::f816:3eff:fe6d:2b43/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:c6:4d:ca:91 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:c6ff:fe4d:ca91/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether c2:ee:43:f2:35:77 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::c0ee:43ff:fef2:3577/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 92:e9:20:f4:94:fd 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::90e9:20ff:fef4:94fd/64 scope link valid_lft forever preferred_lft forever 8: veth7acfeb63@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ce:dd:5f:4a:d3:33 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::ccdd:5fff:fe4a:d333/64 scope link valid_lft forever preferred_lft forever 9: veth76d7b4d4@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1a:21:12:f5:f4:11 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::1821:12ff:fef5:f411/64 scope link valid_lft forever preferred_lft forever 10: veth435c95d9@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6a:0f:a9:70:8c:ab brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::680f:a9ff:fe70:8cab/64 scope link valid_lft forever preferred_lft forever 13: veth3c61c1f6@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:1d:6e:95:1f:ca brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::301d:6eff:fe95:1fca/64 scope link valid_lft forever preferred_lft forever 14: veth6cbcccff@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ae:09:31:91:7e:15 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::ac09:31ff:fe91:7e15/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-3220) 10/17/25 _x86_64_ (8 CPU) 11:54:50 LINUX RESTART (8 CPU) 11:55:01 tps rtps wtps bread/s bwrtn/s 11:56:02 126.26 53.19 73.07 4683.89 42119.51 11:57:01 178.88 81.26 97.63 3381.94 44343.40 11:58:01 216.58 25.38 191.20 1496.82 46881.12 11:59:01 88.44 0.68 87.76 92.09 14645.88 Average: 152.43 39.95 112.47 2409.44 36964.88 11:55:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:56:02 30394876 31757432 2544344 7.72 41600 1645480 1411372 4.28 761080 1515600 91636 11:57:01 28855268 31290472 4083952 12.40 63924 2658748 2196128 6.67 1661588 2045816 103528 11:58:01 27541336 30991552 5397884 16.39 87932 3619200 2584556 7.85 2199400 2761820 65432 11:59:01 27296592 31034452 5642628 17.13 110252 3853240 2539740 7.71 2185024 2990388 124736 Average: 28522018 31268477 4417202 13.41 75927 2944167 2182949 6.63 1701773 2328406 96333 11:55:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 11:56:02 ens3 401.20 282.44 1148.29 64.23 0.00 0.00 0.00 0.00 11:56:02 lo 1.60 1.60 0.16 0.16 0.00 0.00 0.00 0.00 11:56:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:57:01 veth76d7b4d4 0.14 0.63 0.01 0.05 0.00 0.00 0.00 0.00 11:57:01 ens3 269.63 155.18 5672.15 16.61 0.00 0.00 0.00 0.00 11:57:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:57:01 veth435c95d9 0.14 0.56 0.01 0.05 0.00 0.00 0.00 0.00 11:58:01 veth76d7b4d4 0.43 0.88 0.09 0.16 0.00 0.00 0.00 0.00 11:58:01 ens3 109.00 69.54 2010.33 10.78 0.00 0.00 0.00 0.00 11:58:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:58:01 veth435c95d9 2.93 3.57 0.30 0.68 0.00 0.00 0.00 0.00 11:59:01 veth76d7b4d4 0.15 0.18 0.01 0.02 0.00 0.00 0.00 0.00 11:59:01 ens3 47.58 34.35 712.19 8.62 0.00 0.00 0.00 0.00 11:59:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:59:01 veth435c95d9 3.00 3.18 0.28 0.28 0.00 0.00 0.00 0.00 Average: veth76d7b4d4 0.18 0.42 0.03 0.06 0.00 0.00 0.00 0.00 Average: ens3 206.58 135.28 2371.85 25.09 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 Average: veth435c95d9 1.52 1.83 0.15 0.25 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-3220) 10/17/25 _x86_64_ (8 CPU) 11:54:50 LINUX RESTART (8 CPU) 11:55:01 CPU %user %nice %system %iowait %steal %idle 11:56:02 all 4.34 0.00 1.05 9.81 0.04 84.76 11:56:02 0 5.16 0.00 0.77 15.86 0.03 78.18 11:56:02 1 3.05 0.00 0.62 3.90 0.03 92.40 11:56:02 2 5.30 0.00 2.41 24.08 0.05 68.16 11:56:02 3 3.62 0.00 0.74 0.55 0.05 95.05 11:56:02 4 4.91 0.00 1.17 30.56 0.07 63.29 11:56:02 5 3.43 0.00 0.85 0.59 0.03 95.10 11:56:02 6 4.26 0.00 1.27 0.73 0.02 93.72 11:56:02 7 5.00 0.00 0.57 2.31 0.03 92.10 11:57:01 all 7.00 0.71 2.34 9.31 0.07 80.56 11:57:01 0 4.75 0.00 2.13 6.04 0.07 87.01 11:57:01 1 6.22 0.00 2.28 5.30 0.07 86.13 11:57:01 2 8.55 5.65 3.18 30.34 0.09 52.20 11:57:01 3 6.93 0.00 2.12 7.12 0.09 83.74 11:57:01 4 9.57 0.00 2.26 11.76 0.07 76.34 11:57:01 5 6.52 0.00 2.03 7.07 0.07 84.31 11:57:01 6 4.93 0.00 2.40 5.39 0.07 87.21 11:57:01 7 8.56 0.00 2.35 1.65 0.07 87.37 11:58:01 all 9.53 0.24 2.39 10.39 0.10 77.35 11:58:01 0 11.58 0.00 2.89 24.19 0.10 61.25 11:58:01 1 11.77 0.00 2.37 9.54 0.12 76.20 11:58:01 2 5.74 0.00 2.18 7.80 0.07 84.21 11:58:01 3 9.60 0.00 2.34 7.32 0.08 80.65 11:58:01 4 10.41 1.88 2.30 14.56 0.10 70.74 11:58:01 5 8.93 0.00 2.38 7.23 0.08 81.38 11:58:01 6 6.26 0.00 2.18 6.43 0.08 85.05 11:58:01 7 12.02 0.00 2.49 5.98 0.12 79.40 11:59:01 all 9.11 0.00 0.85 3.68 0.07 86.30 11:59:01 0 15.74 0.00 1.41 4.87 0.12 77.86 11:59:01 1 21.21 0.00 1.42 1.54 0.05 75.79 11:59:01 2 0.47 0.00 0.25 0.00 0.02 99.27 11:59:01 3 3.46 0.00 0.40 0.05 0.12 95.97 11:59:01 4 3.82 0.00 0.65 15.41 0.07 80.05 11:59:01 5 10.87 0.00 0.79 2.28 0.08 85.98 11:59:01 6 12.10 0.00 1.07 3.78 0.03 83.02 11:59:01 7 5.18 0.00 0.79 1.55 0.07 92.42 Average: all 7.50 0.23 1.65 8.29 0.07 82.26 Average: 0 9.33 0.00 1.80 12.77 0.08 76.03 Average: 1 10.58 0.00 1.67 5.06 0.07 82.63 Average: 2 4.99 1.38 2.00 15.46 0.05 76.12 Average: 3 5.89 0.00 1.40 3.73 0.08 88.90 Average: 4 7.17 0.47 1.59 18.11 0.08 72.59 Average: 5 7.44 0.00 1.51 4.28 0.07 86.71 Average: 6 6.90 0.00 1.73 4.07 0.05 87.25 Average: 7 7.68 0.00 1.54 2.87 0.07 87.83