---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-5087 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 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/543fcaa7ba5a65489649ce51bc170b4f4f6a60700f52c41789dcff853c175f06/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/cd1e818f665281dcbc353b92291f745f08c2140fc83ad1fcecd269338aa23496/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d43bd5aa3d7a7441b0847b351dea2f29f580f4b9fe23f6417b673a03c21a3840/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6c5fe7e53f35c6bfb4edd4afd1c4d902cab736219050bd70b90a6d51c4f6902d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e2382a147f57c081048dd1f45557714dce1e3c8f4f5a00310e905b5da4044c9f/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1490 24248 1 6428 30219 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:e3:81:6d brd ff:ff:ff:ff:ff:ff inet 10.30.107.29/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86071sec preferred_lft 86071sec inet6 fe80::f816:3eff:fee3:816d/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:ce:9a:cf:1c 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:ceff:fe9a:cf1c/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 0e:ab:e7:42:96:88 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::cab:e7ff:fe42:9688/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 9e:2c:0e:1f:35:c9 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::9c2c:eff:fe1f:35c9/64 scope link valid_lft forever preferred_lft forever 7: veth11b5f8da@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 72:f2:8f:68:7a:8a brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::70f2:8fff:fe68:7a8a/64 scope link valid_lft forever preferred_lft forever 8: vethb86f9557@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 02:73:aa:13:15:28 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::73:aaff:fe13:1528/64 scope link valid_lft forever preferred_lft forever 10: vethf4f4bc7d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ea:a1:80:71:b6:44 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::e8a1:80ff:fe71:b644/64 scope link valid_lft forever preferred_lft forever 11: veth2c333007@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 86:64:ea:86:63:c5 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::8464:eaff:fe86:63c5/64 scope link valid_lft forever preferred_lft forever 12: veth305f9ee1@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 3a:08:ad:18:40:4c brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::3808:adff:fe18:404c/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-5087) 11/02/26 _x86_64_ (8 CPU) 14:03:19 LINUX RESTART (8 CPU) 14:04:01 tps rtps wtps bread/s bwrtn/s 14:05:01 421.20 82.50 338.69 3698.32 170312.28 14:06:01 144.18 0.00 144.18 0.00 59362.77 14:07:02 166.57 3.62 162.96 498.58 107472.49 14:08:01 90.05 21.08 68.97 827.11 11156.75 Average: 205.98 26.82 179.16 1257.80 87393.67 14:04:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 14:05:01 26480048 30955776 6459172 19.61 120108 4469564 3432500 10.42 2264072 3607800 602520 14:06:01 25123976 30870560 7815244 23.73 125904 5681628 3520768 10.69 3041160 4135360 772668 14:07:02 25640808 31038348 7298412 22.16 131340 5417156 3208888 9.74 2286188 4464424 640 14:08:01 25074244 30935196 7864976 23.88 141760 5838032 3360488 10.20 2506836 4771204 172580 Average: 25579769 30949970 7359451 22.34 129778 5351595 3380661 10.26 2524564 4244697 387102 14:04:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 14:05:01 vethb86f9557 5.78 7.23 1.82 2.19 0.00 0.00 0.00 0.00 14:05:01 vethf4f4bc7d 0.53 1.27 0.09 0.20 0.00 0.00 0.00 0.00 14:05:01 veth91ca892 179.09 283.97 15.72 1506.72 0.00 0.00 0.00 0.12 14:05:01 lo 215.10 215.10 168.77 168.77 0.00 0.00 0.00 0.00 14:06:01 vethb86f9557 6.80 7.82 1.98 0.92 0.00 0.00 0.00 0.00 14:06:01 vethf4f4bc7d 0.10 0.18 0.01 0.02 0.00 0.00 0.00 0.00 14:06:01 veth91ca892 0.52 0.68 0.07 0.46 0.00 0.00 0.00 0.00 14:06:01 lo 12.13 12.13 3.67 3.67 0.00 0.00 0.00 0.00 14:07:02 vethb86f9557 7.40 8.53 2.15 0.99 0.00 0.00 0.00 0.00 14:07:02 vethf4f4bc7d 0.12 0.17 0.01 0.02 0.00 0.00 0.00 0.00 14:07:02 lo 17.21 17.21 4.35 4.35 0.00 0.00 0.00 0.00 14:07:02 veth2c333007 0.18 0.65 0.01 0.05 0.00 0.00 0.00 0.00 14:08:01 vethb86f9557 7.46 8.71 2.19 1.19 0.00 0.00 0.00 0.00 14:08:01 vethf4f4bc7d 0.08 0.17 0.01 0.02 0.00 0.00 0.00 0.00 14:08:01 lo 44.77 44.77 17.54 17.54 0.00 0.00 0.00 0.00 14:08:01 veth2c333007 0.00 0.10 0.00 0.01 0.00 0.00 0.00 0.00 Average: vethb86f9557 6.86 8.07 2.04 1.33 0.00 0.00 0.00 0.00 Average: vethf4f4bc7d 0.21 0.45 0.03 0.07 0.00 0.00 0.00 0.00 Average: lo 72.42 72.42 48.71 48.71 0.00 0.00 0.00 0.00 Average: veth2c333007 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-5087) 11/02/26 _x86_64_ (8 CPU) 14:03:19 LINUX RESTART (8 CPU) 14:04:01 CPU %user %nice %system %iowait %steal %idle 14:05:01 all 18.22 0.61 5.86 2.88 0.08 72.36 14:05:01 0 16.36 2.98 6.04 4.31 0.07 70.25 14:05:01 1 18.32 0.03 5.92 4.44 0.08 71.21 14:05:01 2 20.51 0.00 6.01 4.09 0.07 69.32 14:05:01 3 15.92 0.02 6.14 5.48 0.10 72.34 14:05:01 4 18.04 0.00 5.20 1.35 0.08 75.32 14:05:01 5 21.45 1.87 5.81 0.84 0.07 69.96 14:05:01 6 19.31 0.00 5.93 1.31 0.08 73.36 14:05:01 7 15.88 0.00 5.75 1.22 0.07 77.09 14:06:01 all 55.14 0.00 6.81 0.23 0.05 37.77 14:06:01 0 53.77 0.00 6.99 0.00 0.08 39.15 14:06:01 1 63.08 0.00 6.92 0.30 0.05 29.65 14:06:01 2 53.39 0.00 6.35 0.96 0.05 39.25 14:06:01 3 52.37 0.00 6.27 0.08 0.05 41.23 14:06:01 4 59.67 0.00 6.84 0.02 0.05 33.42 14:06:01 5 53.23 0.00 6.73 0.08 0.03 39.92 14:06:01 6 52.87 0.00 7.58 0.03 0.03 39.48 14:06:01 7 52.74 0.00 6.82 0.34 0.07 40.03 14:07:02 all 29.42 0.32 6.31 1.18 0.05 62.71 14:07:02 0 28.34 0.00 6.17 2.20 0.07 63.22 14:07:02 1 32.91 0.00 6.24 0.64 0.07 60.14 14:07:02 2 28.38 0.00 7.26 1.88 0.05 62.42 14:07:02 3 29.22 0.00 6.51 2.82 0.05 61.40 14:07:02 4 29.96 0.00 6.37 0.18 0.05 63.43 14:07:02 5 29.27 2.56 6.55 0.79 0.05 60.77 14:07:02 6 26.93 0.00 5.16 0.17 0.05 67.68 14:07:02 7 30.35 0.00 6.15 0.79 0.08 62.64 14:08:01 all 8.92 0.00 1.58 0.60 0.05 88.84 14:08:01 0 8.33 0.00 1.66 0.20 0.08 89.72 14:08:01 1 14.21 0.00 1.55 0.83 0.05 83.36 14:08:01 2 12.24 0.00 1.65 0.32 0.03 85.75 14:08:01 3 2.61 0.00 1.01 0.07 0.02 96.29 14:08:01 4 5.03 0.00 1.42 0.56 0.05 92.94 14:08:01 5 2.89 0.00 1.26 0.44 0.03 95.37 14:08:01 6 10.10 0.00 1.99 1.24 0.07 86.60 14:08:01 7 15.94 0.00 2.15 1.13 0.05 80.73 Average: all 27.99 0.23 5.15 1.22 0.06 65.34 Average: 0 26.76 0.75 5.23 1.68 0.08 65.51 Average: 1 32.19 0.01 5.17 1.55 0.06 61.02 Average: 2 28.68 0.00 5.33 1.82 0.05 64.13 Average: 3 25.15 0.00 5.00 2.12 0.05 67.68 Average: 4 28.28 0.00 4.97 0.53 0.06 66.16 Average: 5 26.80 1.11 5.10 0.54 0.05 66.41 Average: 6 27.36 0.00 5.18 0.69 0.06 66.71 Average: 7 28.76 0.00 5.23 0.87 0.07 65.08