---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-16724 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: 2799.996 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 lbrv nrip_save tsc_scale vmcb_clean flushbyasid pausefilter pfthreshold v_vmsave_vmload vgif 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/a270b459fd7d58b80038329183450d361cc9a348c6b3babb5b97cab756533019/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e4f4cf5ee8924a5c0e7d02d76b9ad9cbd73632defae9cadbdd63a30365104abd/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/aa157b3a6cd3f5acf1b7a08125f6eb57e7ebe45e62674a4f368cd99aa832d1c0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1ac5163c3121ebc8dcbc38f27e7e636515c6f53cabca2c0c73db35b69fb67634/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d7c6bb05b22b979d76238caf812f46c466df45592712758fcfcf20112992d1d9/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1542 24195 1 6429 30167 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:32:70:76 brd ff:ff:ff:ff:ff:ff inet 10.30.107.145/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86083sec preferred_lft 86083sec inet6 fe80::f816:3eff:fe32:7076/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:35:6f:3a:0f 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::42:35ff:fe6f:3a0f/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 8e:c1:e1:81:98:c5 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::8cc1:e1ff:fe81:98c5/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 36:c9:3c:e0:89:05 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::34c9:3cff:fee0:8905/64 scope link valid_lft forever preferred_lft forever 8: veth8a346c04@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 52:f9:f0:f5:46:de brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::50f9:f0ff:fef5:46de/64 scope link valid_lft forever preferred_lft forever 9: veth8d4cc93b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 9a:47:13:30:14:3b brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::9847:13ff:fe30:143b/64 scope link valid_lft forever preferred_lft forever 10: veth9b84451c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 42:c6:78:7a:aa:6d brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::40c6:78ff:fe7a:aa6d/64 scope link valid_lft forever preferred_lft forever 11: veth0a540f49@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4e:2e:7d:eb:2b:fc brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::4c2e:7dff:feeb:2bfc/64 scope link valid_lft forever preferred_lft forever 12: veth033baddf@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:74:5e:ba:27:46 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::3074:5eff:feba:2746/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-16724) 08/31/26 _x86_64_ (8 CPU) 05:56:04 LINUX RESTART (8 CPU) 05:57:02 tps rtps wtps bread/s bwrtn/s 05:58:01 575.33 43.17 532.16 2280.72 189449.27 05:59:01 86.04 0.00 86.04 0.00 36137.42 06:00:01 204.98 16.40 188.59 1020.76 90116.18 06:01:01 96.20 7.87 88.34 261.42 9723.45 Average: 239.25 16.75 222.50 884.93 80907.05 05:57:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:58:01 25501064 30847284 7438156 22.58 133552 5294356 3732680 11.33 2806632 4006044 905280 05:59:01 25139136 31036240 7800084 23.68 135056 5816440 2876900 8.73 2776812 4370804 670096 06:00:01 25338024 30945176 7601196 23.08 142192 5622576 3283508 9.97 2452876 4593852 4900 06:01:01 24892360 30947700 8046860 24.43 151400 6012824 3266648 9.92 2475608 4965872 230272 Average: 25217646 30944100 7721574 23.44 140550 5686549 3289934 9.99 2627982 4484143 452637 05:57:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:58:01 cni0 39.95 38.51 21.72 94.17 0.00 0.00 0.88 0.00 05:58:01 veth56e8d9f 155.85 177.04 14.51 1638.65 0.00 0.00 0.00 0.13 05:58:01 veth8d4cc93b 0.59 1.44 0.10 0.21 0.00 0.00 0.00 0.00 05:58:01 lo 227.23 227.23 176.91 176.91 0.00 0.00 0.00 0.00 05:59:01 cni0 11.75 13.08 2.34 1.45 0.00 0.00 0.08 0.00 05:59:01 veth56e8d9f 4.13 5.95 0.36 18.80 0.00 0.00 0.00 0.00 05:59:01 veth8d4cc93b 0.15 0.20 0.01 0.02 0.00 0.00 0.00 0.00 05:59:01 lo 12.43 12.43 3.73 3.73 0.00 0.00 0.00 0.00 06:00:01 cni0 12.56 13.60 2.44 1.91 0.00 0.00 0.18 0.00 06:00:01 veth8d4cc93b 0.15 0.30 0.01 0.03 0.00 0.00 0.00 0.00 06:00:01 lo 42.19 42.19 16.02 16.02 0.00 0.00 0.00 0.00 06:00:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:01:01 cni0 11.90 13.26 2.39 1.56 0.00 0.00 0.02 0.00 06:01:01 veth8d4cc93b 0.13 0.13 0.01 0.02 0.00 0.00 0.00 0.00 06:01:01 lo 21.36 21.36 6.16 6.16 0.00 0.00 0.00 0.00 06:01:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: cni0 18.95 19.53 7.16 24.48 0.00 0.00 0.29 0.00 Average: veth8d4cc93b 0.26 0.51 0.03 0.07 0.00 0.00 0.00 0.00 Average: lo 75.17 75.17 50.18 50.18 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-16724) 08/31/26 _x86_64_ (8 CPU) 05:56:04 LINUX RESTART (8 CPU) 05:57:02 CPU %user %nice %system %iowait %steal %idle 05:58:01 all 47.25 0.00 8.84 3.13 0.02 40.76 05:58:01 0 47.80 0.00 8.51 2.54 0.03 41.11 05:58:01 1 45.72 0.00 9.42 5.89 0.02 38.95 05:58:01 2 47.32 0.00 8.64 2.25 0.02 41.77 05:58:01 3 46.19 0.00 9.13 2.49 0.02 42.16 05:58:01 4 47.61 0.00 8.09 3.63 0.02 40.65 05:58:01 5 48.06 0.00 9.35 2.50 0.02 40.09 05:58:01 6 47.83 0.00 8.83 4.46 0.02 38.87 05:58:01 7 47.52 0.00 8.72 1.26 0.00 42.51 05:59:01 all 45.65 0.00 6.31 0.28 0.02 47.74 05:59:01 0 44.62 0.00 6.36 0.24 0.00 48.79 05:59:01 1 46.12 0.00 6.31 0.49 0.02 47.07 05:59:01 2 44.60 0.00 6.33 0.02 0.03 49.03 05:59:01 3 46.33 0.00 6.39 0.44 0.02 46.83 05:59:01 4 47.75 0.00 5.92 0.02 0.00 46.32 05:59:01 5 48.86 0.00 6.71 0.17 0.02 44.24 05:59:01 6 44.86 0.00 5.91 0.91 0.00 48.33 05:59:01 7 42.09 0.00 6.54 0.00 0.03 51.34 06:00:01 all 7.88 0.21 4.18 1.19 0.01 86.52 06:00:01 0 8.75 0.00 4.16 0.75 0.00 86.33 06:00:01 1 6.18 0.00 4.41 2.31 0.00 87.10 06:00:01 2 10.48 0.00 4.41 0.71 0.00 84.40 06:00:01 3 7.23 0.00 4.43 3.10 0.02 85.23 06:00:01 4 9.07 0.00 4.04 0.32 0.00 86.57 06:00:01 5 7.58 0.00 4.61 0.10 0.02 87.69 06:00:01 6 6.44 0.44 3.26 0.19 0.02 89.66 06:00:01 7 7.31 1.26 4.15 2.07 0.00 85.20 06:01:01 all 11.76 0.00 1.34 0.63 0.00 86.26 06:01:01 0 7.04 0.00 1.12 0.35 0.00 91.49 06:01:01 1 23.08 0.00 1.69 0.83 0.02 74.39 06:01:01 2 9.30 0.00 1.54 1.97 0.00 87.19 06:01:01 3 9.43 0.00 1.59 0.77 0.00 88.22 06:01:01 4 21.89 0.00 1.82 0.47 0.02 75.81 06:01:01 5 5.95 0.00 1.07 0.23 0.00 92.75 06:01:01 6 8.76 0.00 0.92 0.08 0.00 90.24 06:01:01 7 8.71 0.00 0.95 0.35 0.00 89.99 Average: all 27.99 0.05 5.14 1.30 0.01 65.51 Average: 0 26.81 0.00 5.00 0.96 0.01 67.23 Average: 1 30.18 0.00 5.42 2.36 0.01 62.02 Average: 2 27.80 0.00 5.20 1.23 0.01 65.75 Average: 3 27.17 0.00 5.36 1.69 0.01 65.77 Average: 4 31.47 0.00 4.94 1.09 0.01 62.48 Average: 5 27.44 0.00 5.40 0.74 0.01 66.41 Average: 6 26.83 0.11 4.70 1.39 0.01 66.97 Average: 7 26.26 0.32 5.06 0.92 0.01 67.43