---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-5114 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/3baa581eed6c3362c4bd8d1c7b6ef35f6c0910aa728f291c1237ea8cf165c324/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/84209eef65a1ef2fef980069c18302f68f3f178d020453762b130f661bed8280/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/cf93ae980ec94df47805a5a3716873ff6e1e1c97d1fe4de834b98afebb5b6858/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/2bb24955b0a4daa588ae9052b0748a2be7fb912aa714de160958f4ac8acb503e/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/8cb176cc161007dc511a09bced80012c385fa87f948277feaefc82269415c110/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1520 24184 1 6461 30189 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:b1:7a:1d brd ff:ff:ff:ff:ff:ff inet 10.30.106.174/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86065sec preferred_lft 86065sec inet6 fe80::f816:3eff:feb1:7a1d/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:f8:3b:c0:d1 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:f8ff:fe3b:c0d1/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 8e:51:2d:1b:e6:87 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::8c51:2dff:fe1b:e687/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether aa:a6:21:b8:36:c2 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::c0f9:25ff:fe63:1bb4/64 scope link valid_lft forever preferred_lft forever 7: veth59c3a616@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:b6:bd:f1:cb:86 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::60b6:bdff:fef1:cb86/64 scope link valid_lft forever preferred_lft forever 9: veth7afc48e9@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:d3:01:62:dc:0e brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::1cd3:1ff:fe62:dc0e/64 scope link valid_lft forever preferred_lft forever 10: veth4dde92ff@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether fe:da:a0:9f:97:5a brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::fcda:a0ff:fe9f:975a/64 scope link valid_lft forever preferred_lft forever 11: veth8b22d201@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 66:6a:91:30:9e:36 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::646a:91ff:fe30:9e36/64 scope link valid_lft forever preferred_lft forever 12: vetha1b8fe5d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 7a:28:db:d9:8d:bb brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::7828:dbff:fed9:8dbb/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-5114) 10/26/26 _x86_64_ (8 CPU) 06:04:03 LINUX RESTART (8 CPU) 06:05:01 tps rtps wtps bread/s bwrtn/s 06:06:01 389.50 41.55 347.95 2196.47 154889.04 06:07:01 108.16 0.00 108.16 0.00 68946.75 06:08:01 179.52 3.82 175.70 532.31 90228.30 06:09:01 90.20 20.41 69.79 766.54 11506.75 Average: 191.85 16.45 175.41 873.85 81395.25 06:05:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:06:01 25699936 30919208 7239284 21.98 118868 5197036 3347236 10.16 2675600 3956972 1021548 06:07:01 24907600 31043252 8031620 24.38 120788 6075084 2901312 8.81 3020764 4370572 930548 06:08:01 25356716 30972436 7582504 23.02 126108 5645760 3294260 10.00 2322744 4702704 156136 06:09:01 24948784 30896120 7990436 24.26 137056 5932992 3330960 10.11 2516884 4884064 189652 Average: 25228259 30957754 7710961 23.41 125705 5712718 3218442 9.77 2633998 4478578 574471 06:05:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:06:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:06:01 lo 203.93 203.93 166.65 166.65 0.00 0.00 0.00 0.00 06:06:01 ens3 719.13 398.42 10129.34 36.59 0.00 0.00 0.00 0.00 06:06:01 veth59c3a616 0.53 1.57 0.09 0.22 0.00 0.00 0.00 0.00 06:07:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:07:01 lo 12.16 12.16 3.71 3.71 0.00 0.00 0.00 0.00 06:07:01 ens3 11.13 7.18 20.32 3.81 0.00 0.00 0.00 0.00 06:07:01 veth59c3a616 0.13 0.18 0.01 0.02 0.00 0.00 0.00 0.00 06:08:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:08:01 vetha0be3c35 0.10 0.17 0.01 0.01 0.00 0.00 0.00 0.00 06:08:01 lo 36.31 36.31 12.76 12.76 0.00 0.00 0.00 0.00 06:08:01 ens3 299.13 162.01 6080.01 14.88 0.00 0.00 0.00 0.00 06:09:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:09:01 lo 26.31 26.31 9.14 9.14 0.00 0.00 0.00 0.00 06:09:01 ens3 85.07 53.86 1102.16 10.34 0.00 0.00 0.00 0.00 06:09:01 veth59c3a616 0.88 2.10 0.12 0.29 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: lo 69.68 69.68 48.07 48.07 0.00 0.00 0.00 0.00 Average: ens3 278.62 155.37 4333.02 16.41 0.00 0.00 0.00 0.00 Average: veth59c3a616 0.22 0.52 0.03 0.07 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-5114) 10/26/26 _x86_64_ (8 CPU) 06:04:03 LINUX RESTART (8 CPU) 06:05:01 CPU %user %nice %system %iowait %steal %idle 06:06:01 all 41.59 0.00 8.06 2.06 0.02 48.28 06:06:01 0 40.71 0.00 8.30 3.13 0.03 47.82 06:06:01 1 40.86 0.00 8.04 4.78 0.02 46.30 06:06:01 2 41.02 0.00 7.85 0.84 0.02 50.26 06:06:01 3 41.12 0.00 8.28 0.96 0.02 49.62 06:06:01 4 42.90 0.00 8.11 0.56 0.02 48.42 06:06:01 5 41.27 0.00 8.51 2.26 0.02 47.93 06:06:01 6 41.38 0.00 7.65 2.84 0.02 48.12 06:06:01 7 43.42 0.00 7.71 1.08 0.02 47.77 06:07:01 all 51.79 0.00 7.25 0.46 0.02 40.49 06:07:01 0 50.98 0.00 6.69 1.94 0.02 40.37 06:07:01 1 53.09 0.00 7.53 0.00 0.02 39.36 06:07:01 2 52.78 0.00 6.99 0.00 0.00 40.23 06:07:01 3 49.68 0.00 7.29 0.66 0.02 42.36 06:07:01 4 50.12 0.00 7.30 0.00 0.02 42.57 06:07:01 5 50.37 0.00 7.40 0.47 0.03 41.72 06:07:01 6 57.45 0.00 7.44 0.32 0.02 34.78 06:07:01 7 49.92 0.00 7.35 0.24 0.00 42.49 06:08:01 all 9.42 0.23 4.18 1.19 0.01 84.98 06:08:01 0 8.60 0.27 4.24 5.10 0.02 81.78 06:08:01 1 9.88 0.82 3.80 0.10 0.02 85.38 06:08:01 2 7.60 0.00 4.51 0.12 0.02 87.75 06:08:01 3 12.20 0.00 4.76 0.17 0.02 82.86 06:08:01 4 9.57 0.00 3.45 0.23 0.00 86.75 06:08:01 5 8.73 0.00 3.73 1.62 0.00 85.92 06:08:01 6 8.60 0.67 3.94 1.82 0.02 84.96 06:08:01 7 10.14 0.00 4.93 0.39 0.02 84.52 06:09:01 all 10.62 0.00 1.49 0.62 0.01 87.25 06:09:01 0 6.17 0.00 1.20 1.94 0.00 90.69 06:09:01 1 17.58 0.00 1.62 0.18 0.02 80.60 06:09:01 2 18.99 0.00 1.86 0.82 0.02 78.31 06:09:01 3 10.32 0.00 1.44 0.17 0.00 88.07 06:09:01 4 6.82 0.00 1.29 0.22 0.00 91.67 06:09:01 5 7.10 0.00 1.69 1.07 0.02 90.11 06:09:01 6 9.70 0.00 1.44 0.42 0.00 88.44 06:09:01 7 8.25 0.00 1.43 0.13 0.00 90.19 Average: all 28.33 0.06 5.24 1.08 0.01 65.28 Average: 0 26.62 0.07 5.10 3.02 0.02 65.17 Average: 1 30.32 0.21 5.24 1.26 0.02 62.97 Average: 2 30.06 0.00 5.30 0.45 0.01 64.18 Average: 3 28.30 0.00 5.44 0.49 0.01 65.77 Average: 4 27.30 0.00 5.03 0.25 0.01 67.41 Average: 5 26.85 0.00 5.33 1.36 0.02 66.45 Average: 6 29.25 0.17 5.11 1.35 0.01 64.11 Average: 7 27.93 0.00 5.35 0.46 0.01 66.25