---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-9938 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 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/4635af2398654d1c711f4bc314f8cef650f510b3054760ca5920dcfa2792c442/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e1b5cff4c786f36259a94876e59ece4b3cec9ce36d64758f6f5859a1cb8ec6b5/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c295521e26d58a18d4f870c6794e308e404dabf965740ec64480d20e1b1bafcf/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6b2c52d663a1a929ea2a08863c44fc80d31a4d407798b9d35e3130311ee61d47/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/74e1847d68ad8cb068fd99870742677439ea5919e860fef1dbfc5a4b00a21691/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1530 24193 1 6443 30180 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:70:89:76 brd ff:ff:ff:ff:ff:ff inet 10.30.106.139/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86069sec preferred_lft 86069sec inet6 fe80::f816:3eff:fe70:8976/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:d5:b8:96:12 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:d5ff:feb8:9612/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 26:53:c6:e0:ee:26 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::2453:c6ff:fee0:ee26/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 46:a9:76:52:dd:32 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::44a9:76ff:fe52:dd32/64 scope link valid_lft forever preferred_lft forever 6: veth70816260@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:5c:45:e5:4b:7f brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::605c:45ff:fee5:4b7f/64 scope link valid_lft forever preferred_lft forever 7: veth399fa72b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 26:1f:ac:27:0f:f2 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::241f:acff:fe27:ff2/64 scope link valid_lft forever preferred_lft forever 8: veth491e3161@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 52:62:9e:54:31:e3 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::5062:9eff:fe54:31e3/64 scope link valid_lft forever preferred_lft forever 11: vethc18ea3b9@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether f2:9a:7a:00:5e:c0 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::f09a:7aff:fe00:5ec0/64 scope link valid_lft forever preferred_lft forever 12: veth1f2a8193@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:dd:bd:2c:4b:7c brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::6cdd:bdff:fe2c:4b7c/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-9938) 07/13/26 _x86_64_ (8 CPU) 06:03:42 LINUX RESTART (8 CPU) 06:04:01 tps rtps wtps bread/s bwrtn/s 06:05:01 499.23 125.88 373.35 6990.97 145992.33 06:06:01 435.03 3.33 431.69 366.21 138513.31 06:07:01 165.03 3.25 161.78 443.72 60841.99 06:08:01 130.06 20.50 109.57 775.87 55143.88 06:09:01 106.17 1.05 105.12 71.59 11310.65 Average: 267.10 30.80 236.30 1729.63 82359.71 06:04:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:05:01 27992688 31201188 4946532 15.02 70156 3408052 2662584 8.08 1761932 2770976 1057728 06:06:01 25683156 30760140 7256064 22.03 136024 5028712 3189160 9.68 2484924 4154648 634980 06:07:01 26450292 31056844 6488928 19.70 139092 4668284 2638448 8.01 2217712 3774324 240 06:08:01 25219624 30902388 7719596 23.44 148076 5682656 3385648 10.28 2517728 4640296 54444 06:09:01 24799056 30926208 8140164 24.71 154952 6079552 3365816 10.22 2504724 5030016 239428 Average: 26028963 30969354 6910257 20.98 129660 4973451 3048331 9.25 2297404 4074052 397364 06:04:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:05:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:05:01 cni0 6.92 5.87 0.78 12.18 0.00 0.00 0.48 0.00 06:05:01 ens3 700.68 435.04 10040.03 88.36 0.00 0.00 0.00 0.00 06:05:01 veth7f0f394e 3.47 3.58 0.37 7.88 0.00 0.00 0.00 0.00 06:06:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:06:01 cni0 35.28 33.46 20.85 80.45 0.00 0.00 0.42 0.00 06:06:01 ens3 283.95 196.02 2508.03 19.81 0.00 0.00 0.00 0.00 06:06:01 vethc18ea3b9 0.15 0.52 0.01 0.04 0.00 0.00 0.00 0.00 06:07:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:07:01 cni0 11.61 13.26 2.38 1.47 0.00 0.00 0.07 0.00 06:07:01 ens3 39.77 25.84 692.81 2.85 0.00 0.00 0.00 0.00 06:07:01 vethc18ea3b9 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 06:08:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:08:01 cni0 12.41 13.60 2.43 1.99 0.00 0.00 0.17 0.00 06:08:01 ens3 264.07 157.29 5647.17 17.27 0.00 0.00 0.00 0.00 06:08:01 vethc18ea3b9 0.02 0.17 0.00 0.01 0.00 0.00 0.00 0.00 06:09:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:09:01 cni0 12.16 13.25 2.41 1.48 0.00 0.00 0.00 0.00 06:09:01 ens3 100.45 66.57 1503.88 12.51 0.00 0.00 0.00 0.00 06:09:01 vethc18ea3b9 0.00 0.00 0.00 0.00 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: cni0 15.68 15.89 5.77 19.51 0.00 0.00 0.23 0.00 Average: ens3 277.78 176.15 4078.27 28.16 0.00 0.00 0.00 0.00 Average: vethc18ea3b9 0.04 0.15 0.00 0.01 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-9938) 07/13/26 _x86_64_ (8 CPU) 06:03:42 LINUX RESTART (8 CPU) 06:04:01 CPU %user %nice %system %iowait %steal %idle 06:05:01 all 12.98 0.62 4.25 4.87 0.06 77.21 06:05:01 0 19.58 0.00 4.74 3.04 0.05 72.59 06:05:01 1 13.52 1.71 5.50 5.37 0.07 73.84 06:05:01 2 14.68 0.00 3.82 4.45 0.07 76.98 06:05:01 3 11.13 0.02 3.48 0.70 0.05 84.61 06:05:01 4 11.90 0.00 3.77 2.93 0.05 81.35 06:05:01 5 9.89 1.70 3.90 5.12 0.05 79.35 06:05:01 6 14.24 0.00 4.23 2.64 0.07 78.82 06:05:01 7 8.89 1.57 4.54 14.79 0.07 70.16 06:06:01 all 44.38 0.00 7.19 2.58 0.11 45.75 06:06:01 0 43.18 0.00 6.44 2.76 0.10 47.52 06:06:01 1 42.42 0.00 8.37 6.01 0.10 43.11 06:06:01 2 44.36 0.00 6.62 2.50 0.12 46.39 06:06:01 3 41.85 0.00 7.12 1.52 0.10 49.41 06:06:01 4 44.66 0.00 7.30 2.14 0.12 45.78 06:06:01 5 47.80 0.00 7.55 1.55 0.10 42.99 06:06:01 6 44.45 0.00 7.59 2.37 0.12 45.46 06:06:01 7 46.33 0.00 6.48 1.75 0.12 45.32 06:07:01 all 41.18 0.21 6.61 0.72 0.08 51.19 06:07:01 0 39.52 0.00 5.80 1.34 0.07 53.28 06:07:01 1 45.38 1.48 8.51 1.06 0.08 43.48 06:07:01 2 39.44 0.22 5.80 0.33 0.08 54.12 06:07:01 3 44.12 0.00 7.04 0.08 0.08 48.67 06:07:01 4 38.65 0.00 6.47 0.20 0.08 54.60 06:07:01 5 41.30 0.00 6.23 0.37 0.08 52.01 06:07:01 6 41.53 0.00 6.65 2.42 0.08 49.31 06:07:01 7 39.47 0.00 6.42 0.02 0.08 54.02 06:08:01 all 9.02 0.00 3.11 0.99 0.08 86.80 06:08:01 0 9.20 0.00 4.61 3.38 0.08 82.72 06:08:01 1 7.89 0.00 2.47 0.57 0.08 88.98 06:08:01 2 7.45 0.00 2.35 0.08 0.07 90.04 06:08:01 3 8.84 0.00 3.10 0.27 0.07 87.72 06:08:01 4 9.15 0.00 3.35 2.68 0.08 84.73 06:08:01 5 9.89 0.00 2.67 0.15 0.07 87.22 06:08:01 6 14.28 0.00 3.28 0.34 0.08 82.02 06:08:01 7 5.44 0.00 3.03 0.47 0.07 90.99 06:09:01 all 11.27 0.00 1.39 0.56 0.07 86.71 06:09:01 0 11.76 0.00 1.25 0.55 0.07 86.37 06:09:01 1 10.16 0.00 1.59 0.92 0.08 87.24 06:09:01 2 5.19 0.00 1.05 0.17 0.08 93.51 06:09:01 3 11.30 0.00 1.10 0.22 0.05 87.33 06:09:01 4 12.19 0.00 1.62 0.75 0.05 85.39 06:09:01 5 11.06 0.00 1.34 0.35 0.08 87.16 06:09:01 6 6.92 0.00 1.27 1.24 0.07 90.51 06:09:01 7 21.58 0.00 1.88 0.28 0.08 76.18 Average: all 23.73 0.17 4.51 1.94 0.08 69.57 Average: 0 24.63 0.00 4.56 2.21 0.07 68.52 Average: 1 23.85 0.64 5.28 2.78 0.08 67.36 Average: 2 22.18 0.04 3.92 1.51 0.08 72.26 Average: 3 23.39 0.00 4.36 0.56 0.07 71.62 Average: 4 23.28 0.00 4.50 1.74 0.08 70.40 Average: 5 23.94 0.34 4.33 1.51 0.08 69.80 Average: 6 24.26 0.00 4.60 1.80 0.08 69.26 Average: 7 24.35 0.31 4.47 3.46 0.08 67.33