---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6244 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/c7ffe0f0a317d1743c8cb4ffc21eb916553ac0c5c1c72567f3d11684f04e60fa/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/4828fa11744c50d9d41123dc1b204055d46bf4024bd84502e22ff77e3a063f8a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c086ce18a263b626dcdbc5cf4c3d869fa3cfc7b435aca1895bd156459ee6540c/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1256662f93876e3f8b90ac323146eca1572ed06dd4787c0b2a68ca074f51c157/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/fdda8ab9d1e8a8354d61f9538a7003c6b60d372de0aa77c8871cbdf82753000b/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1527 24172 1 6467 30183 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:72:e1:6e brd ff:ff:ff:ff:ff:ff inet 10.30.107.215/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86035sec preferred_lft 86035sec inet6 fe80::f816:3eff:fe72:e16e/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:26:34:43:32 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::42:26ff:fe34:4332/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 9a:b3:05:6a:56:c4 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::98b3:5ff:fe6a:56c4/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether da:40:a1:cc:aa:28 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::d840:a1ff:fecc:aa28/64 scope link valid_lft forever preferred_lft forever 8: veth07656b27@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 96:dd:e0:80:a8:3b brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::94dd:e0ff:fe80:a83b/64 scope link valid_lft forever preferred_lft forever 9: veth58caedc0@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether aa:e9:7a:9d:6e:70 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::a8e9:7aff:fe9d:6e70/64 scope link valid_lft forever preferred_lft forever 10: veth9ab69011@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether e2:fa:19:45:83:e6 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::e0fa:19ff:fe45:83e6/64 scope link valid_lft forever preferred_lft forever 13: vethe6bd4228@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6a:0a:fa:b8:27:57 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::680a:faff:feb8:2757/64 scope link valid_lft forever preferred_lft forever 14: veth79f53254@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 96:b8:76:73:d2:3c brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::94b8:76ff:fe73:d23c/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-6244) 10/29/26 _x86_64_ (8 CPU) 14:11:04 LINUX RESTART (8 CPU) 14:12:02 tps rtps wtps bread/s bwrtn/s 14:13:01 366.68 42.94 323.74 2228.23 113700.32 14:14:01 129.64 0.02 129.62 0.13 57834.19 14:15:01 198.93 3.63 195.30 490.45 108363.54 14:16:01 101.25 20.70 80.55 805.33 27826.56 Average: 198.42 16.71 181.71 875.36 76776.54 14:12:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 14:13:01 25628124 30650988 7311096 22.20 119172 5007196 3604332 10.94 2849388 3866264 1028268 14:14:01 24690856 30764676 8248364 25.04 121552 6015252 3415936 10.37 3264872 4346348 935844 14:15:01 25580524 31020048 7358696 22.34 127036 5472200 3241512 9.84 2279108 4539752 656 14:16:01 25000736 30903776 7938484 24.10 137844 5892816 3303008 10.03 2514916 4846132 174668 Average: 25225060 30834872 7714160 23.42 126401 5596866 3391197 10.30 2727071 4399624 534859 14:12:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 14:13:01 cni0 37.77 37.33 21.16 93.93 0.00 0.00 0.92 0.00 14:13:01 veth07656b27 2.71 3.75 0.28 0.74 0.00 0.00 0.00 0.00 14:13:01 docker0 90.59 151.36 7.22 1516.69 0.00 0.00 0.00 0.00 14:13:01 lo 224.64 224.64 177.28 177.28 0.00 0.00 0.00 0.00 14:14:01 cni0 11.33 12.60 2.27 1.41 0.00 0.00 0.08 0.00 14:14:01 veth07656b27 2.88 3.18 0.27 0.28 0.00 0.00 0.00 0.00 14:14:01 docker0 0.57 0.57 0.04 0.43 0.00 0.00 0.00 0.00 14:14:01 lo 12.35 12.35 3.72 3.72 0.00 0.00 0.00 0.00 14:15:01 cni0 11.86 13.08 2.39 1.46 0.00 0.00 0.08 0.00 14:15:01 veth07656b27 3.05 3.35 0.28 0.29 0.00 0.00 0.00 0.00 14:15:01 docker0 0.08 0.13 0.00 0.01 0.00 0.00 0.00 0.00 14:15:01 lo 16.93 16.93 4.33 4.33 0.00 0.00 0.00 0.00 14:16:01 cni0 12.46 13.63 2.44 1.99 0.00 0.00 0.10 0.00 14:16:01 veth07656b27 3.13 3.42 0.29 0.40 0.00 0.00 0.00 0.00 14:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:16:01 lo 44.29 44.29 17.33 17.33 0.00 0.00 0.00 0.00 Average: cni0 18.28 19.08 7.01 24.41 0.00 0.00 0.29 0.00 Average: veth07656b27 2.94 3.42 0.28 0.42 0.00 0.00 0.00 0.00 Average: docker0 22.53 37.54 1.79 374.51 0.00 0.00 0.00 0.00 Average: lo 73.92 73.92 50.14 50.14 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6244) 10/29/26 _x86_64_ (8 CPU) 14:11:04 LINUX RESTART (8 CPU) 14:12:02 CPU %user %nice %system %iowait %steal %idle 14:13:01 all 38.94 0.00 8.24 5.43 0.02 47.37 14:13:01 0 37.98 0.00 8.75 4.82 0.02 48.44 14:13:01 1 38.18 0.00 7.91 2.24 0.03 51.63 14:13:01 2 39.87 0.00 8.43 3.79 0.03 47.87 14:13:01 3 38.46 0.00 7.85 4.00 0.03 49.66 14:13:01 4 40.16 0.00 8.10 9.15 0.05 42.54 14:13:01 5 39.82 0.00 8.35 14.30 0.02 37.52 14:13:01 6 38.77 0.00 8.43 1.70 0.02 51.08 14:13:01 7 38.29 0.00 8.03 3.45 0.02 50.22 14:14:01 all 55.86 0.00 7.30 0.85 0.03 35.96 14:14:01 0 53.79 0.00 7.28 4.42 0.02 34.48 14:14:01 1 59.56 0.00 8.30 0.08 0.02 32.04 14:14:01 2 53.98 0.00 6.70 1.75 0.03 37.53 14:14:01 3 60.57 0.00 7.82 0.22 0.02 31.38 14:14:01 4 52.90 0.00 7.05 0.00 0.02 40.03 14:14:01 5 54.33 0.00 6.81 0.07 0.03 38.76 14:14:01 6 56.86 0.00 7.41 0.02 0.02 35.70 14:14:01 7 54.95 0.00 7.06 0.20 0.03 37.75 14:15:01 all 11.87 0.23 4.31 3.75 0.01 79.83 14:15:01 0 11.99 0.00 4.28 10.06 0.02 73.65 14:15:01 1 11.77 0.00 3.89 0.08 0.02 84.23 14:15:01 2 12.61 0.00 3.68 0.90 0.00 82.81 14:15:01 3 12.60 0.00 4.86 1.13 0.02 81.40 14:15:01 4 11.00 0.00 3.85 0.12 0.00 85.04 14:15:01 5 9.76 1.83 4.16 8.13 0.02 76.10 14:15:01 6 11.60 0.02 5.36 0.10 0.02 82.91 14:15:01 7 13.56 0.00 4.46 9.53 0.00 72.45 14:16:01 all 9.16 0.00 1.82 1.44 0.01 87.56 14:16:01 0 8.56 0.00 2.03 4.54 0.02 84.87 14:16:01 1 8.97 0.00 2.14 0.92 0.02 87.95 14:16:01 2 15.47 0.00 1.76 0.49 0.02 82.26 14:16:01 3 4.60 0.00 1.29 0.62 0.00 93.49 14:16:01 4 13.20 0.00 1.93 0.70 0.02 84.15 14:16:01 5 8.41 0.00 1.94 2.64 0.02 86.99 14:16:01 6 7.92 0.00 1.79 0.84 0.02 89.43 14:16:01 7 6.16 0.00 1.67 0.80 0.02 91.35 Average: all 28.89 0.06 5.40 2.85 0.02 62.79 Average: 0 28.01 0.00 5.57 5.96 0.02 60.44 Average: 1 29.57 0.00 5.54 0.82 0.02 64.04 Average: 2 30.43 0.00 5.13 1.72 0.02 62.70 Average: 3 28.98 0.00 5.44 1.48 0.02 64.08 Average: 4 29.24 0.00 5.21 2.45 0.02 63.07 Average: 5 27.98 0.46 5.29 6.23 0.02 60.02 Average: 6 28.71 0.00 5.73 0.66 0.02 64.88 Average: 7 28.16 0.00 5.29 3.49 0.02 63.05