---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-46241 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/c0468e722a5b1ebf54f4a7b7953b61299057f3ea0b19da8c0e5458966ae0c0a1/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/82fcb77283d8d59f9920a4af7d0a961b972ef3e3fab4108031cd02fcaa055dd1/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/89d25a4ea2dbd4b367ac15e4ceef1a14e4faadce9ddf22121c9212f7398abe33/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e39fec7e6cbf6f8b030886b6bc8ff8e56e3f64bf9c553483fd3f1951d213fa89/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/9a942e7b939c58cbd6c8cf49c98a059736d1437dfcba18fdb83a4fcda7876ac7/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1387 27074 1 3704 30322 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:b4:c2:4a brd ff:ff:ff:ff:ff:ff inet 10.30.107.194/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86191sec preferred_lft 86191sec inet6 fe80::f816:3eff:feb4:c24a/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:3c:ff:83:89 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 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 36:cd:56:7e:44:50 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::34cd:56ff:fe7e:4450/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 66:39:bd:a9:a9:08 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::6439:bdff:fea9:a908/64 scope link valid_lft forever preferred_lft forever 11: vethcabf9cdd@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:cf:7c:c3:2f:84 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::1ccf:7cff:fec3:2f84/64 scope link valid_lft forever preferred_lft forever 12: veth9fc13534@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 2e:3e:04:63:92:e1 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::2c3e:4ff:fe63:92e1/64 scope link valid_lft forever preferred_lft forever 13: vethd876cff3@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 86:60:04:1e:d8:c7 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::8460:4ff:fe1e:d8c7/64 scope link valid_lft forever preferred_lft forever 14: veth6a5334bc@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether a2:9b:73:be:68:21 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::a09b:73ff:febe:6821/64 scope link valid_lft forever preferred_lft forever 15: veth96179417@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 92:45:96:f5:97:fa brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::9045:96ff:fef5:97fa/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-46241) 09/16/25 _x86_64_ (8 CPU) 13:32:40 LINUX RESTART (8 CPU) 13:33:01 tps rtps wtps bread/s bwrtn/s 13:34:01 343.84 84.09 259.76 4658.96 86310.41 13:35:01 297.33 103.53 193.80 5704.92 52616.16 13:36:01 108.95 1.07 107.88 70.52 40332.61 Average: 250.04 62.90 187.15 3478.13 59753.06 13:33:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 13:34:01 29744984 31610492 3194236 9.70 45744 2134192 1612508 4.90 1208444 1700452 388 13:35:01 27750608 30989448 5188612 15.75 86808 3421048 2571480 7.81 2071596 2702436 394868 13:36:01 27691196 31013980 5248024 15.93 97896 3484528 2559620 7.77 2034444 2790484 91584 Average: 28395596 31204640 4543624 13.79 76816 3013256 2247869 6.82 1771495 2397791 162280 13:33:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 13:34:01 ens3 501.45 347.21 2507.04 79.35 0.00 0.00 0.00 0.00 13:34:01 lo 6.17 6.17 1.71 1.71 0.00 0.00 0.00 0.00 13:34:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 13:35:01 veth9fc13534 4.22 5.33 1.74 1.90 0.00 0.00 0.00 0.00 13:35:01 ens3 259.56 207.23 4158.30 24.83 0.00 0.00 0.00 0.00 13:35:01 vethd876cff3 1.95 2.35 0.21 0.59 0.00 0.00 0.00 0.00 13:35:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 13:36:01 veth9fc13534 6.92 7.90 2.57 1.67 0.00 0.00 0.00 0.00 13:36:01 ens3 55.11 45.51 287.84 10.17 0.00 0.00 0.00 0.00 13:36:01 vethd876cff3 2.73 3.02 0.25 0.26 0.00 0.00 0.00 0.00 13:36:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth9fc13534 3.71 4.41 1.44 1.19 0.00 0.00 0.00 0.00 Average: ens3 272.04 199.98 2317.73 38.12 0.00 0.00 0.00 0.00 Average: vethd876cff3 1.56 1.79 0.15 0.29 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-46241) 09/16/25 _x86_64_ (8 CPU) 13:32:40 LINUX RESTART (8 CPU) 13:33:01 CPU %user %nice %system %iowait %steal %idle 13:34:01 all 8.03 0.66 1.77 5.14 0.05 84.34 13:34:01 0 6.40 0.00 2.42 0.15 0.05 90.98 13:34:01 1 15.05 5.23 2.51 0.65 0.07 76.49 13:34:01 2 10.83 0.02 1.64 7.36 0.05 80.10 13:34:01 3 6.22 0.00 1.36 1.37 0.05 91.00 13:34:01 4 9.24 0.00 1.31 2.08 0.03 87.34 13:34:01 5 6.20 0.00 1.49 0.55 0.05 91.71 13:34:01 6 6.02 0.00 1.13 22.01 0.05 70.79 13:34:01 7 4.31 0.00 2.26 7.01 0.07 86.35 13:35:01 all 12.36 0.00 2.84 7.76 0.09 76.96 13:35:01 0 8.67 0.00 2.72 10.53 0.10 77.98 13:35:01 1 9.69 0.00 2.97 10.97 0.09 76.27 13:35:01 2 9.20 0.00 2.37 7.46 0.07 80.90 13:35:01 3 24.83 0.00 3.87 16.09 0.09 55.13 13:35:01 4 11.07 0.00 3.19 6.79 0.08 78.87 13:35:01 5 13.36 0.00 2.64 3.09 0.09 80.83 13:35:01 6 7.97 0.00 2.40 3.13 0.07 86.43 13:35:01 7 14.06 0.00 2.55 3.97 0.12 79.29 13:36:01 all 9.54 0.00 0.88 3.26 0.06 86.26 13:36:01 0 12.22 0.00 1.07 2.47 0.07 84.17 13:36:01 1 19.82 0.00 1.35 1.12 0.10 77.60 13:36:01 2 4.07 0.00 0.89 4.30 0.07 90.68 13:36:01 3 12.56 0.00 1.12 3.46 0.05 82.81 13:36:01 4 3.10 0.00 0.70 1.62 0.07 94.51 13:36:01 5 8.02 0.00 0.69 0.49 0.07 90.74 13:36:01 6 4.74 0.00 0.69 0.17 0.05 94.36 13:36:01 7 11.71 0.00 0.59 12.53 0.05 75.13 Average: all 9.96 0.22 1.83 5.37 0.07 82.55 Average: 0 9.11 0.00 2.06 4.35 0.07 84.40 Average: 1 14.89 1.75 2.28 4.20 0.08 76.79 Average: 2 8.01 0.01 1.63 6.36 0.06 83.93 Average: 3 14.50 0.00 2.10 6.93 0.06 76.41 Average: 4 7.79 0.00 1.74 3.50 0.06 86.91 Average: 5 9.16 0.00 1.60 1.36 0.07 87.82 Average: 6 6.23 0.00 1.40 8.45 0.06 83.87 Average: 7 10.02 0.00 1.80 7.86 0.08 80.25