---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4434 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 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/b9f73318560eb1ffa84488dbcb93b3b67bf460eb233fe6a30d0d7fa9781b17bf/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d3da406611c12ea2636de440cb9b4e5c6ae67b730048ed727fa06ad2eed71de6/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e1ce67f430c29fb6e25051613d1a27cdc18461fa7ef9edd24957c95bd708a407/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/086f3c05840aae8da426966e5e3a5e292b03f3e41ca0d1ad477b9dc05a47053b/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/166061033b64d9d6ceb5fff9a73a995a87e049f37252f87434986c27f784c228/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1533 24179 1 6454 30177 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:fe:66:c4 brd ff:ff:ff:ff:ff:ff inet 10.30.107.112/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86080sec preferred_lft 86080sec inet6 fe80::f816:3eff:fefe:66c4/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:9b:0f:3e:32 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::42:9bff:fe0f:3e32/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether b6:65:69:f7:ef:56 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::b465:69ff:fef7:ef56/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 92:b3:ca:d8:c2:b9 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::90b3:caff:fed8:c2b9/64 scope link valid_lft forever preferred_lft forever 6: veth6f35556d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 3a:f8:e3:b1:b4:10 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::38f8:e3ff:feb1:b410/64 scope link valid_lft forever preferred_lft forever 7: vethc9c49455@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 96:e3:f9:af:47:b8 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::94e3:f9ff:feaf:47b8/64 scope link valid_lft forever preferred_lft forever 8: vethf77c4d8c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 86:5f:83:93:a1:a2 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::845f:83ff:fe93:a1a2/64 scope link valid_lft forever preferred_lft forever 13: veth58a8a396@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:bc:b2:73:f3:20 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::60bc:b2ff:fe73:f320/64 scope link valid_lft forever preferred_lft forever 14: veth9109b4a7@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ea:50:ca:ae:81:54 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::e850:caff:feae:8154/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4434) 10/23/26 _x86_64_ (8 CPU) 07:32:02 LINUX RESTART (8 CPU) 07:33:02 tps rtps wtps bread/s bwrtn/s 07:34:01 400.71 42.26 358.45 2251.01 167819.56 07:35:01 166.89 0.03 166.86 3.60 63034.83 07:36:01 187.44 21.41 166.02 1178.07 83252.92 07:37:01 116.36 2.72 113.65 95.72 11891.62 Average: 217.09 16.50 200.59 876.37 81138.62 07:33:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:34:01 25714780 30951244 7224440 21.93 119388 5214500 3123872 9.48 2659032 3964496 1104520 07:35:01 25417164 31110088 7522056 22.84 121260 5675884 2556464 7.76 2512904 4419592 232768 07:36:01 25296584 30931344 7642636 23.20 130040 5660428 3277936 9.95 2468044 4626624 5168 07:37:01 24759896 30869304 8179324 24.83 140912 6074784 3307632 10.04 2571940 5008140 199764 Average: 25297106 30965495 7642114 23.20 127900 5656399 3066476 9.31 2552980 4504713 385555 07:33:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 07:34:01 ens3 660.90 382.16 10288.90 34.38 0.00 0.00 0.00 0.00 07:34:01 veth6c4c40e 174.36 281.04 14.37 1511.66 0.00 0.00 0.00 0.12 07:34:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:34:01 veth58a8a396 0.15 0.51 0.01 0.04 0.00 0.00 0.00 0.00 07:35:01 ens3 8.17 5.33 19.06 0.74 0.00 0.00 0.00 0.00 07:35:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:35:01 veth58a8a396 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 07:35:01 vethc9c49455 13.71 17.25 4.27 3.34 0.00 0.00 0.00 0.00 07:36:01 ens3 290.57 164.27 6088.71 16.52 0.00 0.00 0.00 0.00 07:36:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:36:01 veth58a8a396 0.02 0.18 0.00 0.01 0.00 0.00 0.00 0.00 07:36:01 vethc9c49455 7.15 8.67 2.14 1.11 0.00 0.00 0.00 0.00 07:37:01 ens3 84.59 54.77 1373.26 9.67 0.00 0.00 0.00 0.00 07:37:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:37:01 veth58a8a396 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:37:01 vethc9c49455 7.38 8.27 2.15 1.06 0.00 0.00 0.00 0.00 Average: ens3 259.38 150.67 4418.02 15.25 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: veth58a8a396 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 Average: vethc9c49455 7.09 8.58 2.15 1.38 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4434) 10/23/26 _x86_64_ (8 CPU) 07:32:02 LINUX RESTART (8 CPU) 07:33:02 CPU %user %nice %system %iowait %steal %idle 07:34:01 all 40.18 0.00 7.46 3.12 0.01 49.24 07:34:01 0 40.27 0.00 7.65 2.72 0.02 49.34 07:34:01 1 39.25 0.00 8.43 7.10 0.02 45.20 07:34:01 2 41.53 0.00 7.41 5.14 0.02 45.90 07:34:01 3 42.17 0.00 7.41 1.36 0.00 49.07 07:34:01 4 40.04 0.00 6.70 1.39 0.02 51.85 07:34:01 5 40.04 0.00 7.05 3.07 0.02 49.83 07:34:01 6 39.67 0.00 7.70 2.29 0.00 50.34 07:34:01 7 38.49 0.00 7.25 1.86 0.00 52.40 07:35:01 all 46.13 0.00 6.85 0.53 0.01 46.48 07:35:01 0 48.70 0.00 7.54 0.89 0.02 42.85 07:35:01 1 50.04 0.00 6.65 0.03 0.02 43.26 07:35:01 2 48.51 0.00 6.79 0.32 0.00 44.39 07:35:01 3 45.35 0.00 6.90 0.02 0.02 47.72 07:35:01 4 42.45 0.00 6.63 0.03 0.00 50.89 07:35:01 5 43.90 0.00 6.41 0.93 0.00 48.76 07:35:01 6 43.54 0.00 7.22 1.19 0.02 48.03 07:35:01 7 46.48 0.00 6.61 0.89 0.00 46.01 07:36:01 all 7.90 0.27 3.78 1.24 0.01 86.79 07:36:01 0 7.67 0.00 3.19 0.20 0.00 88.93 07:36:01 1 13.01 0.89 3.86 1.43 0.02 80.79 07:36:01 2 7.40 1.26 3.72 2.93 0.02 84.67 07:36:01 3 7.56 0.00 3.70 1.30 0.00 87.44 07:36:01 4 6.28 0.00 4.99 2.02 0.02 86.69 07:36:01 5 6.03 0.00 3.49 0.20 0.00 90.27 07:36:01 6 6.52 0.00 3.37 1.50 0.00 88.61 07:36:01 7 8.74 0.02 3.95 0.32 0.03 86.94 07:37:01 all 11.55 0.00 1.18 0.69 0.01 86.57 07:37:01 0 5.21 0.00 0.97 0.69 0.00 93.13 07:37:01 1 8.98 0.00 1.12 0.28 0.02 89.60 07:37:01 2 12.40 0.00 1.42 1.62 0.00 84.56 07:37:01 3 11.21 0.00 1.39 0.67 0.02 86.72 07:37:01 4 9.10 0.00 0.75 0.94 0.00 89.21 07:37:01 5 4.19 0.00 0.69 0.17 0.02 94.94 07:37:01 6 29.61 0.00 1.89 0.92 0.02 67.56 07:37:01 7 11.84 0.00 1.22 0.20 0.00 86.74 Average: all 26.34 0.07 4.80 1.38 0.01 67.40 Average: 0 25.26 0.00 4.80 1.11 0.01 68.81 Average: 1 27.75 0.22 4.99 2.18 0.02 64.83 Average: 2 27.38 0.32 4.82 2.49 0.01 64.99 Average: 3 26.45 0.00 4.83 0.83 0.01 67.88 Average: 4 24.37 0.00 4.75 1.09 0.01 69.77 Average: 5 23.42 0.00 4.39 1.08 0.01 71.10 Average: 6 29.80 0.00 5.03 1.47 0.01 63.70 Average: 7 26.28 0.00 4.73 0.81 0.01 68.16