---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-5989 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 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/1f7830dbd4e66fb6898bd285b53311ba4cd4e87a33ea440a09e062486bf6c8e3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e1dc285286fb607da723113371ed771d9d611092b268705d091a1ec7c6202f4c/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/05c4e197d53cc718e284788ff7f2f533afcf5a156f2eefe148eb43ab2a12f3bd/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/05e08d8cff4e01579fbc4538cbf672223786662dcedfcc45ab8aa4ee9272e4ab/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c82bfa96d3b1334d421b0be79c03eae28d2da74b7cbd953df7c142b7e4b2661d/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 1625 23888 2 6653 30084 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:79:4c:9f brd ff:ff:ff:ff:ff:ff inet 10.30.107.100/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86058sec preferred_lft 86058sec inet6 fe80::f816:3eff:fe79:4c9f/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:2c:2d:a8:13 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::42:2cff:fe2d:a813/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 7e:54:d5:25:ae:de 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::7c54:d5ff:fe25:aede/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 02:ee:01:d3:37:ed 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::ee:1ff:fed3:37ed/64 scope link valid_lft forever preferred_lft forever 8: veth0b1631cf@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether fe:9b:d9:3d:c5:e5 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::fc9b:d9ff:fe3d:c5e5/64 scope link valid_lft forever preferred_lft forever 9: veth6966bcfb@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4a:e5:59:68:65:14 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::48e5:59ff:fe68:6514/64 scope link valid_lft forever preferred_lft forever 10: veth161d189b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4e:d1:4f:ab:69:14 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::4cd1:4fff:feab:6914/64 scope link valid_lft forever preferred_lft forever 13: veth142187aa@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 5a:ad:72:aa:ba:d2 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::58ad:72ff:feaa:bad2/64 scope link valid_lft forever preferred_lft forever 14: veth4dadf5bb@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether de:33:51:7d:b9:ff brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::dc33:51ff:fe7d:b9ff/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-5989) 10/24/25 _x86_64_ (8 CPU) 07:12:31 LINUX RESTART (8 CPU) 07:13:01 tps rtps wtps bread/s bwrtn/s 07:14:01 663.32 88.59 574.74 3940.81 147832.96 07:15:01 241.21 0.47 240.74 3.73 105319.51 07:16:01 191.87 3.42 188.45 459.98 108985.40 07:17:01 78.72 21.86 56.86 749.08 11027.76 07:18:01 106.18 1.05 105.13 75.85 10557.57 Average: 256.26 23.08 233.18 1045.87 76745.72 07:13:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:14:01 27000580 31022444 5938640 18.03 109048 4089680 2868028 8.71 2033240 3392152 364200 07:15:01 25803400 30857720 7135820 21.66 132484 4990312 3842352 11.66 2669176 3858512 355180 07:16:01 25477468 31003548 7461752 22.65 137292 5545708 3285520 9.97 2330340 4584720 488 07:17:01 24777800 30817900 8161420 24.78 183756 5989536 3616944 10.98 2732320 4841600 54136 07:18:01 24495296 30836976 8443924 25.63 190316 6251140 3613096 10.97 2725856 5097088 130204 Average: 25510909 30907718 7428311 22.55 150579 5373275 3445188 10.46 2498186 4354814 180842 07:13:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 07:14:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:14:01 ens3 794.20 489.97 10910.93 75.54 0.00 0.00 0.00 0.00 07:14:01 veth8d4b413 89.27 132.76 8.16 498.21 0.00 0.00 0.00 0.04 07:14:01 veth161d189b 1.50 2.13 0.17 0.54 0.00 0.00 0.00 0.00 07:15:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:15:01 ens3 136.19 80.94 757.98 7.64 0.00 0.00 0.00 0.00 07:15:01 veth8d4b413 75.89 131.48 6.39 756.91 0.00 0.00 0.00 0.06 07:15:01 veth161d189b 2.62 3.13 0.24 0.31 0.00 0.00 0.00 0.00 07:16:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:16:01 ens3 195.33 123.88 5889.21 11.43 0.00 0.00 0.00 0.00 07:16:01 veth161d189b 3.10 3.30 0.29 0.29 0.00 0.00 0.00 0.00 07:16:01 veth6966bcfb 17.03 20.91 6.60 5.44 0.00 0.00 0.00 0.00 07:17:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:17:01 ens3 187.09 120.90 2968.36 12.29 0.00 0.00 0.00 0.00 07:17:01 veth161d189b 3.15 3.48 0.29 0.40 0.00 0.00 0.00 0.00 07:17:01 veth6966bcfb 7.40 8.82 2.80 1.93 0.00 0.00 0.00 0.00 07:18:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:18:01 ens3 60.59 45.98 918.76 11.05 0.00 0.00 0.00 0.00 07:18:01 veth161d189b 3.07 3.32 0.28 0.29 0.00 0.00 0.00 0.00 07:18:01 veth6966bcfb 7.53 8.48 2.80 1.71 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: ens3 274.68 172.33 4289.10 23.59 0.00 0.00 0.00 0.00 Average: veth161d189b 2.69 3.07 0.25 0.36 0.00 0.00 0.00 0.00 Average: veth6966bcfb 6.39 7.64 2.44 1.82 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-5989) 10/24/25 _x86_64_ (8 CPU) 07:12:31 LINUX RESTART (8 CPU) 07:13:01 CPU %user %nice %system %iowait %steal %idle 07:14:01 all 14.22 0.84 5.17 5.27 0.08 74.41 07:14:01 0 15.99 0.00 6.18 6.02 0.08 71.73 07:14:01 1 14.42 0.00 4.72 2.43 0.08 78.35 07:14:01 2 12.27 0.00 4.74 8.58 0.07 74.35 07:14:01 3 12.31 1.63 5.16 4.28 0.07 76.55 07:14:01 4 12.72 1.33 4.97 3.10 0.07 77.82 07:14:01 5 12.55 2.07 4.64 3.70 0.07 76.96 07:14:01 6 19.30 1.60 4.83 3.72 0.08 70.47 07:14:01 7 14.26 0.02 6.14 10.38 0.10 69.10 07:15:01 all 40.91 0.00 5.38 1.83 0.11 51.77 07:15:01 0 41.83 0.00 5.55 4.56 0.12 47.94 07:15:01 1 38.57 0.00 5.55 0.54 0.14 55.21 07:15:01 2 43.20 0.00 5.74 3.96 0.13 46.96 07:15:01 3 40.22 0.00 5.29 2.14 0.07 52.29 07:15:01 4 42.66 0.00 5.34 0.74 0.12 51.14 07:15:01 5 38.55 0.00 5.21 0.76 0.10 55.39 07:15:01 6 38.21 0.00 5.21 1.75 0.15 54.68 07:15:01 7 44.01 0.00 5.13 0.20 0.08 50.57 07:16:01 all 31.22 0.24 6.19 1.89 0.19 60.27 07:16:01 0 33.60 0.00 7.17 0.40 0.20 58.63 07:16:01 1 31.86 0.00 6.08 0.67 0.30 61.09 07:16:01 2 29.31 0.00 5.17 0.08 0.10 65.33 07:16:01 3 35.26 0.00 6.40 3.14 0.18 55.01 07:16:01 4 28.74 0.00 6.25 5.14 0.15 59.72 07:16:01 5 32.08 0.00 5.32 0.45 0.15 61.99 07:16:01 6 30.79 1.90 6.13 3.27 0.20 57.72 07:16:01 7 28.10 0.00 7.05 1.93 0.25 62.66 07:17:01 all 5.93 0.00 2.24 0.63 0.08 91.11 07:17:01 0 7.02 0.00 3.84 0.97 0.08 88.09 07:17:01 1 7.54 0.00 2.04 0.15 0.07 90.20 07:17:01 2 5.32 0.00 2.11 0.20 0.07 92.30 07:17:01 3 6.07 0.00 1.61 0.07 0.08 92.17 07:17:01 4 5.46 0.00 1.88 2.31 0.10 90.24 07:17:01 5 6.29 0.00 2.44 0.12 0.10 91.05 07:17:01 6 5.24 0.00 1.73 0.27 0.10 92.66 07:17:01 7 4.53 0.00 2.21 0.97 0.08 92.21 07:18:01 all 11.18 0.00 1.25 1.34 0.09 86.14 07:18:01 0 8.81 0.00 0.99 1.55 0.05 88.60 07:18:01 1 5.51 0.00 0.93 1.20 0.07 92.29 07:18:01 2 23.67 0.00 1.94 0.87 0.10 73.43 07:18:01 3 4.81 0.00 1.14 0.94 0.10 93.00 07:18:01 4 5.95 0.00 1.26 4.49 0.13 88.17 07:18:01 5 16.24 0.00 1.37 0.50 0.08 81.81 07:18:01 6 19.03 0.00 1.31 0.32 0.08 79.27 07:18:01 7 5.27 0.00 1.10 0.84 0.13 92.65 Average: all 20.66 0.21 4.04 2.19 0.11 72.78 Average: 0 21.41 0.00 4.74 2.70 0.11 71.05 Average: 1 19.53 0.00 3.86 1.00 0.13 75.48 Average: 2 22.75 0.00 3.93 2.73 0.09 70.49 Average: 3 19.72 0.33 3.92 2.11 0.10 73.82 Average: 4 19.07 0.27 3.93 3.16 0.11 73.45 Average: 5 21.12 0.41 3.79 1.10 0.10 73.47 Average: 6 22.47 0.70 3.83 1.86 0.12 71.01 Average: 7 19.22 0.00 4.32 2.86 0.13 73.46