---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-7105 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/4d4a55f34867d94b8b085d19a24a4edaae6875038e3cdc773f7cd45d2bf31c10/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d045212d297628f6a66b5610ae502278ab3841c46e526b725e5b5716477f5a26/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d083c78c3e76a3dae37693216574093f1f08a5c436c070fcfe931e91882f686b/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/62516b491e2cc9278fab88ced1d0f8387ae030b8d86248c32d8650376644665d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/757afd155cf928725a3324b0cea4f347181f0e20919073dbc989b9a3fe813918/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1528 24197 1 6441 30182 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:ac:bd:e6 brd ff:ff:ff:ff:ff:ff inet 10.30.107.14/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86067sec preferred_lft 86067sec inet6 fe80::f816:3eff:feac:bde6/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:a7:37:ca:49 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:a7ff:fe37:ca49/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 52:19:b5:f3:25:07 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::5019:b5ff:fef3:2507/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether ba:bb:1c:a9:83:69 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::b8bb:1cff:fea9:8369/64 scope link valid_lft forever preferred_lft forever 7: veth4a5c07a6@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether a6:42:5a:d7:93:9c brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::a442:5aff:fed7:939c/64 scope link valid_lft forever preferred_lft forever 8: veth6da17139@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1a:e8:d3:c7:4e:d7 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::18e8:d3ff:fec7:4ed7/64 scope link valid_lft forever preferred_lft forever 9: veth3e50e60d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether de:23:c9:b0:1a:27 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::dc23:c9ff:feb0:1a27/64 scope link valid_lft forever preferred_lft forever 11: vethb40e8332@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6a:d8:10:7f:89:44 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::68d8:10ff:fe7f:8944/64 scope link valid_lft forever preferred_lft forever 12: veth881d5205@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether c6:f2:56:bd:e9:02 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::c4f2:56ff:febd:e902/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-7105) 10/05/26 _x86_64_ (8 CPU) 05:55:06 LINUX RESTART (8 CPU) 05:56:02 tps rtps wtps bread/s bwrtn/s 05:57:01 540.54 42.30 498.24 2222.81 178456.53 05:58:01 141.27 0.02 141.25 0.13 34904.90 05:59:01 184.87 3.80 181.07 525.38 90483.72 06:00:01 101.32 20.43 80.89 767.61 12313.15 Average: 240.74 16.53 224.22 873.32 78621.84 05:56:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:57:01 25774704 30743700 7164516 21.75 136372 4930324 3750664 11.39 2731640 3826828 915500 05:58:01 24715256 30634328 8223964 24.97 139140 5838124 3891072 11.81 3331368 4247940 899848 05:59:01 25512172 30988008 7427048 22.55 143712 5493324 3304628 10.03 2329212 4554220 61376 06:00:01 25039404 30960960 7899816 23.98 153644 5893464 3305592 10.04 2468972 4847888 188584 Average: 25260384 30831749 7678836 23.31 143217 5538809 3562989 10.82 2715298 4369219 516327 05:56:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:57:01 veth4a5c07a6 0.58 1.56 0.10 0.22 0.00 0.00 0.00 0.00 05:57:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:57:01 veth87449d5 226.59 349.89 19.86 1669.22 0.00 0.00 0.00 0.14 05:57:01 docker0 226.59 349.74 16.77 1669.21 0.00 0.00 0.00 0.00 05:58:01 veth4a5c07a6 0.12 0.17 0.01 0.02 0.00 0.00 0.00 0.00 05:58:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:58:01 veth87449d5 5.28 8.28 0.44 18.96 0.00 0.00 0.00 0.00 05:58:01 docker0 5.28 8.26 0.37 18.96 0.00 0.00 0.00 0.00 05:59:01 veth4a5c07a6 0.12 0.17 0.01 0.02 0.00 0.00 0.00 0.00 05:59:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:59:01 docker0 0.05 0.10 0.00 0.01 0.00 0.00 0.00 0.00 05:59:01 veth6da17139 21.25 25.36 6.36 4.38 0.00 0.00 0.00 0.00 06:00:01 veth4a5c07a6 0.10 0.18 0.01 0.02 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 06:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:00:01 veth6da17139 7.40 8.55 2.16 1.19 0.00 0.00 0.00 0.00 Average: veth4a5c07a6 0.23 0.51 0.03 0.07 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: docker0 57.27 88.43 4.23 416.81 0.00 0.00 0.00 0.00 Average: veth6da17139 7.19 8.51 2.14 1.40 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-7105) 10/05/26 _x86_64_ (8 CPU) 05:55:06 LINUX RESTART (8 CPU) 05:56:02 CPU %user %nice %system %iowait %steal %idle 05:57:01 all 34.57 0.00 7.43 3.34 0.02 54.64 05:57:01 0 35.43 0.00 7.90 3.73 0.02 52.92 05:57:01 1 33.44 0.00 7.63 1.90 0.02 57.02 05:57:01 2 35.34 0.00 7.48 5.74 0.00 51.44 05:57:01 3 34.67 0.00 6.95 2.01 0.00 56.37 05:57:01 4 34.78 0.00 7.61 4.03 0.00 53.58 05:57:01 5 34.61 0.00 7.53 2.73 0.02 55.12 05:57:01 6 34.05 0.00 7.50 3.14 0.02 55.30 05:57:01 7 34.26 0.00 6.87 3.44 0.02 55.41 05:58:01 all 52.32 0.00 7.01 0.26 0.01 40.39 05:58:01 0 50.72 0.00 7.35 0.65 0.02 41.26 05:58:01 1 51.89 0.00 7.18 0.00 0.03 40.90 05:58:01 2 50.56 0.00 6.68 0.02 0.00 42.74 05:58:01 3 53.40 0.00 7.53 0.15 0.02 38.90 05:58:01 4 51.64 0.00 6.96 0.18 0.02 41.20 05:58:01 5 51.05 0.00 7.33 0.97 0.02 40.63 05:58:01 6 52.58 0.00 6.33 0.08 0.00 41.01 05:58:01 7 56.77 0.00 6.74 0.02 0.00 36.48 05:59:01 all 12.77 0.20 4.55 1.04 0.01 81.43 05:59:01 0 11.89 0.00 4.92 3.86 0.02 79.31 05:59:01 1 13.46 0.00 5.12 1.04 0.00 80.39 05:59:01 2 11.86 1.60 4.56 1.65 0.02 80.31 05:59:01 3 11.26 0.00 5.00 0.29 0.02 83.44 05:59:01 4 15.56 0.00 4.60 0.71 0.00 79.14 05:59:01 5 11.98 0.00 3.68 0.27 0.00 84.08 05:59:01 6 13.41 0.00 5.23 0.35 0.02 80.99 05:59:01 7 12.77 0.00 3.26 0.10 0.02 83.84 06:00:01 all 10.43 0.00 1.77 0.60 0.01 87.20 06:00:01 0 9.09 0.00 1.84 0.52 0.00 88.55 06:00:01 1 13.59 0.00 1.89 0.45 0.00 84.07 06:00:01 2 19.14 0.00 1.95 0.57 0.00 78.34 06:00:01 3 12.05 0.00 2.01 0.12 0.02 85.80 06:00:01 4 2.47 0.00 1.34 0.05 0.02 96.13 06:00:01 5 7.74 0.00 1.74 2.75 0.02 87.76 06:00:01 6 9.64 0.00 1.71 0.10 0.00 88.54 06:00:01 7 9.70 0.00 1.61 0.25 0.00 88.43 Average: all 27.49 0.05 5.18 1.30 0.01 65.98 Average: 0 26.75 0.00 5.49 2.18 0.01 65.57 Average: 1 28.06 0.00 5.44 0.84 0.01 65.65 Average: 2 29.20 0.40 5.15 1.97 0.00 63.27 Average: 3 27.81 0.00 5.36 0.63 0.01 66.18 Average: 4 26.03 0.00 5.10 1.22 0.01 67.64 Average: 5 26.31 0.00 5.06 1.68 0.01 66.95 Average: 6 27.40 0.00 5.18 0.91 0.01 66.50 Average: 7 28.34 0.00 4.61 0.94 0.01 66.11