---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-997 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/d76e1e9384f8b85f9a21068ec907d5f68d88df3a32b9350729e3fb6362045efc/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a1c6264d9e0fd0e41140d4caf0d6d1914d1ec738a00904f4f3ac6e367b840535/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a46a9690495e9d9576d7d8238bd14e3286bae618cc24ff29afae6e1fe4851349/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/04b89f1605903cbc183e3f91e01d787310a69d21bb991270866011416af61ee8/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/da8febd6cea1aedc061e76de8c67885120338e3b9e930f8cae8c332d0aca2059/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1529 24208 1 6429 30181 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:d4:dd:01 brd ff:ff:ff:ff:ff:ff inet 10.30.107.140/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86089sec preferred_lft 86089sec inet6 fe80::f816:3eff:fed4:dd01/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:f3:56:31:0c 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:f3ff:fe56:310c/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 76:a1:5e:91:96:70 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::74a1:5eff:fe91:9670/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 7a:fc:41:96:81:0c 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::78fc:41ff:fe96:810c/64 scope link valid_lft forever preferred_lft forever 8: veth543119ef@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1a:24:ad:4f:d9:c0 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::1824:adff:fe4f:d9c0/64 scope link valid_lft forever preferred_lft forever 9: veth6cb3425c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 06:e5:a7:5a:ac:a9 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::4e5:a7ff:fe5a:aca9/64 scope link valid_lft forever preferred_lft forever 10: vethc9bac546@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ca:4a:0f:ba:81:21 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::c84a:fff:feba:8121/64 scope link valid_lft forever preferred_lft forever 11: veth093d6ca8@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 06:e2:a3:46:bc:f1 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::4e2:a3ff:fe46:bcf1/64 scope link valid_lft forever preferred_lft forever 14: vethec15996b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether f2:cc:95:d3:8e:ad brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::f0cc:95ff:fed3:8ead/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-997) 10/12/26 _x86_64_ (8 CPU) 17:31:20 LINUX RESTART (8 CPU) 17:32:01 tps rtps wtps bread/s bwrtn/s 17:33:01 532.91 83.70 449.21 3721.65 180327.41 17:34:01 169.27 0.02 169.26 0.13 47592.07 17:35:01 197.08 3.80 193.29 517.83 94140.09 17:36:01 88.32 20.41 67.91 762.81 7052.96 Average: 246.89 26.98 219.91 1250.57 82278.63 17:32:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:33:01 25923708 30728164 7015504 21.30 132232 4775988 3834568 11.64 2660672 3752524 943448 17:34:01 25028748 31038736 7910464 24.02 135792 5927988 2915448 8.85 2972656 4288148 918672 17:35:01 25389344 30978736 7549868 22.92 140932 5606880 3221116 9.78 2413052 4583540 416 17:36:01 24925980 30877708 8013232 24.33 151472 5924016 3320412 10.08 2547936 4875988 205096 Average: 25316945 30905836 7622267 23.14 140107 5558718 3322886 10.09 2648579 4375050 516908 17:32:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 17:33:01 veth6cb3425c 0.53 1.37 0.09 0.21 0.00 0.00 0.00 0.00 17:33:01 vethec15996b 5.38 4.53 1.09 1.81 0.00 0.00 0.00 0.00 17:33:01 veth543119ef 6.18 7.70 1.88 2.26 0.00 0.00 0.00 0.00 17:33:01 ens3 649.11 377.92 11301.34 36.18 0.00 0.00 0.00 0.00 17:34:01 veth6cb3425c 0.12 0.20 0.01 0.02 0.00 0.00 0.00 0.00 17:34:01 vethec15996b 1.48 1.65 0.13 0.20 0.00 0.00 0.00 0.00 17:34:01 veth543119ef 6.60 7.73 1.97 0.92 0.00 0.00 0.00 0.00 17:34:01 ens3 7.03 6.45 19.10 0.59 0.00 0.00 0.00 0.00 17:35:01 veth6cb3425c 0.12 0.27 0.01 0.03 0.00 0.00 0.00 0.00 17:35:01 vethec15996b 1.67 1.87 0.14 0.41 0.00 0.00 0.00 0.00 17:35:01 veth543119ef 7.43 8.50 2.16 1.10 0.00 0.00 0.00 0.00 17:35:01 ens3 323.44 168.04 6082.26 15.52 0.00 0.00 0.00 0.00 17:36:01 veth6cb3425c 0.12 0.10 0.01 0.02 0.00 0.00 0.00 0.00 17:36:01 vethec15996b 1.48 1.50 0.13 0.19 0.00 0.00 0.00 0.00 17:36:01 veth543119ef 7.18 8.32 2.14 1.06 0.00 0.00 0.00 0.00 17:36:01 ens3 92.23 57.71 1360.07 11.06 0.00 0.00 0.00 0.00 Average: veth6cb3425c 0.22 0.48 0.03 0.07 0.00 0.00 0.00 0.00 Average: vethec15996b 2.50 2.39 0.37 0.65 0.00 0.00 0.00 0.00 Average: veth543119ef 6.85 8.06 2.03 1.33 0.00 0.00 0.00 0.00 Average: ens3 267.96 152.53 4690.75 15.84 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-997) 10/12/26 _x86_64_ (8 CPU) 17:31:20 LINUX RESTART (8 CPU) 17:32:01 CPU %user %nice %system %iowait %steal %idle 17:33:01 all 28.85 0.57 6.83 3.53 0.01 60.22 17:33:01 0 29.99 0.00 6.42 4.75 0.02 58.83 17:33:01 1 29.37 0.00 6.95 2.93 0.02 60.73 17:33:01 2 29.94 0.00 6.68 4.68 0.02 58.68 17:33:01 3 28.31 0.00 6.90 2.75 0.02 62.02 17:33:01 4 29.16 0.00 7.05 2.43 0.02 61.35 17:33:01 5 28.67 1.44 6.35 2.76 0.02 60.76 17:33:01 6 29.10 3.05 6.90 5.18 0.02 55.74 17:33:01 7 26.26 0.02 7.32 2.75 0.02 63.64 17:34:01 all 54.56 0.00 7.08 0.37 0.02 37.97 17:34:01 0 57.86 0.00 7.35 0.25 0.03 34.50 17:34:01 1 53.39 0.00 6.60 0.02 0.00 39.99 17:34:01 2 56.72 0.00 7.51 2.35 0.02 33.40 17:34:01 3 53.83 0.00 6.91 0.08 0.02 39.16 17:34:01 4 56.26 0.00 6.79 0.08 0.00 36.87 17:34:01 5 52.51 0.00 7.50 0.05 0.02 39.92 17:34:01 6 54.01 0.00 7.11 0.07 0.02 38.80 17:34:01 7 51.89 0.00 6.86 0.03 0.03 41.18 17:35:01 all 9.14 0.19 3.81 1.30 0.01 85.55 17:35:01 0 8.60 1.52 3.43 2.74 0.02 83.69 17:35:01 1 11.67 0.00 4.37 2.96 0.02 80.99 17:35:01 2 7.50 0.00 3.52 0.25 0.00 88.73 17:35:01 3 8.24 0.00 3.89 2.30 0.02 85.55 17:35:01 4 8.31 0.00 3.67 0.34 0.02 87.67 17:35:01 5 9.87 0.00 5.31 0.52 0.02 84.28 17:35:01 6 6.36 0.00 3.11 1.19 0.02 89.32 17:35:01 7 12.57 0.00 3.22 0.07 0.02 84.13 17:36:01 all 10.71 0.00 1.16 0.80 0.01 87.32 17:36:01 0 8.22 0.00 0.89 1.02 0.00 89.88 17:36:01 1 5.93 0.00 1.03 0.51 0.02 92.52 17:36:01 2 21.65 0.00 1.87 0.97 0.02 75.49 17:36:01 3 10.21 0.00 0.97 0.13 0.00 88.69 17:36:01 4 18.04 0.00 1.44 0.90 0.00 79.62 17:36:01 5 9.27 0.00 1.06 1.24 0.02 88.42 17:36:01 6 3.44 0.00 0.92 1.20 0.00 94.45 17:36:01 7 8.90 0.00 1.12 0.40 0.02 89.56 Average: all 25.79 0.19 4.71 1.50 0.01 67.80 Average: 0 26.12 0.38 4.51 2.19 0.02 66.78 Average: 1 25.09 0.00 4.73 1.60 0.01 68.56 Average: 2 28.95 0.00 4.89 2.06 0.01 64.09 Average: 3 25.12 0.00 4.67 1.32 0.01 68.89 Average: 4 27.92 0.00 4.73 0.94 0.01 66.40 Average: 5 25.07 0.36 5.05 1.14 0.02 68.36 Average: 6 23.15 0.76 4.50 1.91 0.01 69.68 Average: 7 24.89 0.00 4.62 0.81 0.02 69.65