---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-672 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/94456c10c4d6c64c2f80ccce1a876b0108e04180737aee93d32a7bdddaf6683c/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/fab47d8809758b20e0f93dd795f5c975c8bcc1d072c240f513a06f5a1d521821/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/14f8f5dff7f11510777afeb8ba5ff69f08748eb254c0e92b74494f1c0adeeaa6/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/828e500dd75a9ce4968c3c907426d6d3fcffe20cf847e8390235bf4392670000/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/664e26dc12ed6529208e81bbc6956690f5e414139ea9273eb7e2ebaaf6246c8f/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 1600 23811 2 6755 30110 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:25:80:38 brd ff:ff:ff:ff:ff:ff inet 10.30.107.18/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86040sec preferred_lft 86040sec inet6 fe80::f816:3eff:fe25:8038/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:6d:0e:49:55 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::42:6dff:fe0e:4955/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether ae:a0:5a:c7:90:bd 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::aca0:5aff:fec7:90bd/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether ba:8c:20:fd:84:6d 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::b88c:20ff:fefd:846d/64 scope link valid_lft forever preferred_lft forever 8: veth3c82175e@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:34:94:b6:ee:4d brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::3034:94ff:feb6:ee4d/64 scope link valid_lft forever preferred_lft forever 9: vethb14ae63b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4e:06:d3:31:9f:c1 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::4c06:d3ff:fe31:9fc1/64 scope link valid_lft forever preferred_lft forever 10: veth72b84c42@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 26:dd:bf:e4:1a:9c brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::24dd:bfff:fee4:1a9c/64 scope link valid_lft forever preferred_lft forever 13: veth3d729486@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ae:2a:83:3e:de:cd brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::ac2a:83ff:fe3e:decd/64 scope link valid_lft forever preferred_lft forever 14: veth3ffef411@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ae:db:52:cd:a4:39 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::acdb:52ff:fecd:a439/64 scope link valid_lft forever preferred_lft forever 19: br-6486153e595d: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:69:d3:5b:b5 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-6486153e595d valid_lft forever preferred_lft forever inet6 fe80::42:69ff:fed3:5bb5/64 scope link valid_lft forever preferred_lft forever 23: vethca91b99@if22: mtu 1500 qdisc noqueue master br-6486153e595d state UP group default link/ether 6a:93:5f:22:af:f6 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::6893:5fff:fe22:aff6/64 scope link valid_lft forever preferred_lft forever 25: vethc7e1a3a@if24: mtu 1500 qdisc noqueue master br-6486153e595d state UP group default link/ether 8e:c1:54:94:26:ba brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::8cc1:54ff:fe94:26ba/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-672) 09/27/25 _x86_64_ (8 CPU) 16:12:28 LINUX RESTART (8 CPU) 16:13:01 tps rtps wtps bread/s bwrtn/s 16:14:01 611.90 89.04 522.86 3893.22 142260.16 16:15:01 188.90 0.00 188.90 0.00 91271.45 16:16:01 188.12 3.98 184.14 545.38 128840.79 16:17:01 66.81 2.00 64.81 58.66 12556.31 16:18:01 106.20 20.31 85.89 756.28 10324.83 Average: 232.38 23.07 209.31 1050.70 77048.48 16:13:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:14:01 26766824 31048044 6172396 18.74 122732 4281352 2868644 8.71 2071288 3550524 435860 16:15:01 25657196 30815988 7282024 22.11 132204 5095292 3947824 11.99 2773636 3901288 413504 16:16:01 25527640 31004420 7411580 22.50 137008 5502228 3529948 10.72 2334736 4539184 123164 16:17:01 24846920 30895484 8092300 24.57 178556 6013356 4187036 12.71 2659928 4852724 98128 16:18:01 24361268 30779488 8577952 26.04 194700 6328432 4221140 12.81 2907056 5056216 219924 Average: 25431970 30908685 7507250 22.79 153040 5444132 3750918 11.39 2549329 4379987 258116 16:13:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 16:14:01 docker0 95.97 170.72 8.15 1251.87 0.00 0.00 0.00 0.00 16:14:01 veth72b84c42 1.47 2.17 0.16 0.52 0.00 0.00 0.00 0.00 16:14:01 cni0 36.79 33.84 34.79 106.56 0.00 0.00 0.77 0.00 16:14:01 veth3c82175e 0.50 1.33 0.09 0.20 0.00 0.00 0.00 0.00 16:15:01 docker0 7.15 10.75 0.62 1.78 0.00 0.00 0.00 0.00 16:15:01 veth72b84c42 2.68 3.10 0.25 0.33 0.00 0.00 0.00 0.00 16:15:01 cni0 11.73 13.33 3.35 3.02 0.00 0.00 0.17 0.00 16:15:01 veth3c82175e 0.13 0.25 0.01 0.02 0.00 0.00 0.00 0.00 16:16:01 docker0 0.03 0.07 0.00 0.01 0.00 0.00 0.00 0.00 16:16:01 veth72b84c42 3.07 3.28 0.28 0.28 0.00 0.00 0.00 0.00 16:16:01 cni0 11.91 13.23 3.03 2.19 0.00 0.00 0.08 0.00 16:16:01 veth3c82175e 0.17 0.20 0.01 0.02 0.00 0.00 0.00 0.00 16:17:01 vethca91b99 1.82 2.27 1.67 0.66 0.00 0.00 0.00 0.00 16:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:17:01 veth3c52cec8 0.12 0.18 0.01 0.02 0.00 0.00 0.00 0.00 16:17:01 veth72b84c42 3.17 3.53 0.29 0.40 0.00 0.00 0.00 0.00 16:18:01 vethca91b99 0.30 0.45 0.06 0.06 0.00 0.00 0.00 0.00 16:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:18:01 veth72b84c42 3.10 3.25 0.29 0.28 0.00 0.00 0.00 0.00 16:18:01 cni0 84.32 87.15 47.21 116.90 0.00 0.00 1.20 0.00 Average: vethca91b99 0.42 0.54 0.35 0.14 0.00 0.00 0.00 0.00 Average: docker0 20.63 36.31 1.75 250.72 0.00 0.00 0.00 0.00 Average: veth72b84c42 2.70 3.07 0.25 0.36 0.00 0.00 0.00 0.00 Average: cni0 16.87 17.43 9.44 23.38 0.00 0.00 0.24 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-672) 09/27/25 _x86_64_ (8 CPU) 16:12:28 LINUX RESTART (8 CPU) 16:13:01 CPU %user %nice %system %iowait %steal %idle 16:14:01 all 16.22 0.67 6.26 3.86 0.07 72.92 16:14:01 0 19.47 0.02 6.74 1.19 0.07 72.52 16:14:01 1 15.02 0.00 5.67 2.14 0.07 77.10 16:14:01 2 19.09 0.00 6.29 1.47 0.07 73.09 16:14:01 3 16.58 0.00 6.42 10.89 0.07 66.04 16:14:01 4 14.40 1.75 7.11 5.58 0.07 71.09 16:14:01 5 15.41 0.00 6.35 7.29 0.07 70.88 16:14:01 6 14.01 0.00 5.66 1.09 0.07 79.17 16:14:01 7 15.84 3.58 5.82 1.25 0.08 73.43 16:15:01 all 44.48 0.00 5.85 1.55 0.11 48.02 16:15:01 0 49.05 0.00 6.25 0.12 0.08 44.50 16:15:01 1 46.32 0.00 5.91 1.51 0.10 46.16 16:15:01 2 41.53 0.00 5.77 1.45 0.12 51.14 16:15:01 3 40.78 0.00 5.11 2.20 0.10 51.81 16:15:01 4 40.92 0.00 5.54 0.35 0.08 53.11 16:15:01 5 42.45 0.00 5.53 1.38 0.12 50.53 16:15:01 6 46.61 0.00 6.12 1.50 0.10 45.68 16:15:01 7 48.24 0.00 6.52 3.88 0.10 41.26 16:16:01 all 24.39 0.23 5.49 4.01 0.08 65.81 16:16:01 0 26.82 0.00 5.49 2.50 0.08 65.11 16:16:01 1 26.78 0.00 5.71 1.66 0.08 65.76 16:16:01 2 20.99 0.00 5.76 2.72 0.07 70.47 16:16:01 3 23.95 1.77 5.44 15.40 0.08 53.35 16:16:01 4 26.10 0.00 5.18 6.03 0.08 62.61 16:16:01 5 25.95 0.00 6.61 0.49 0.08 66.87 16:16:01 6 22.90 0.00 4.28 0.15 0.08 72.59 16:16:01 7 21.62 0.00 5.43 3.26 0.07 69.63 16:17:01 all 3.57 0.00 2.04 0.56 0.06 93.77 16:17:01 0 4.23 0.00 1.60 0.62 0.07 93.48 16:17:01 1 3.50 0.00 2.71 1.17 0.07 92.56 16:17:01 2 3.44 0.00 1.96 0.10 0.07 94.43 16:17:01 3 3.80 0.00 1.66 0.30 0.07 94.17 16:17:01 4 2.85 0.00 1.96 0.28 0.07 94.84 16:17:01 5 3.59 0.00 1.36 1.66 0.05 93.34 16:17:01 6 2.92 0.00 2.95 0.08 0.05 94.00 16:17:01 7 4.26 0.00 2.10 0.22 0.08 93.34 16:18:01 all 10.81 0.00 1.17 0.64 0.06 87.32 16:18:01 0 3.27 0.00 1.01 1.36 0.05 94.30 16:18:01 1 8.12 0.00 0.82 0.23 0.07 90.76 16:18:01 2 7.25 0.00 0.90 0.17 0.05 91.64 16:18:01 3 16.82 0.00 1.60 0.47 0.07 81.04 16:18:01 4 6.29 0.00 0.99 0.20 0.07 92.46 16:18:01 5 5.75 0.00 0.80 0.30 0.05 93.10 16:18:01 6 23.21 0.00 2.03 2.24 0.07 72.45 16:18:01 7 15.86 0.00 1.22 0.17 0.07 82.68 Average: all 19.88 0.18 4.15 2.12 0.08 73.60 Average: 0 20.51 0.00 4.21 1.16 0.07 74.04 Average: 1 19.93 0.00 4.16 1.34 0.08 74.49 Average: 2 18.43 0.00 4.13 1.18 0.07 76.19 Average: 3 20.38 0.35 4.04 5.83 0.08 69.32 Average: 4 18.08 0.35 4.15 2.48 0.07 74.86 Average: 5 18.61 0.00 4.12 2.22 0.07 74.97 Average: 6 21.92 0.00 4.20 1.01 0.07 72.79 Average: 7 21.14 0.71 4.21 1.75 0.08 72.11