---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4435 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/f1a4698cbfc4ec5102988facfc7d7d74044301830d16a0919ab6a3113f928598/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/65e66b97902abf1b1e090a419e53289386401232b3ce4302da6a801c645e8088/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/76376193505a6caac364a27cc7e5ea4540e92b689919beee7f0e6d04352a7af6/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/064645873214f33571ba27b5b80078e82bc5c9f12ce22d624c224d8ab90dd314/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/652d97f1c5a00f37ecd2a423f0210a375cca2eb126ef528156c74a9297ceda73/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1546 24185 1 6435 30164 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:70:99:e4 brd ff:ff:ff:ff:ff:ff inet 10.30.106.106/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86089sec preferred_lft 86089sec inet6 fe80::f816:3eff:fe70:99e4/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:5e:7f:3b:d5 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::42:5eff:fe7f:3bd5/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 8e:31:69:93:21:01 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::8c31:69ff:fe93:2101/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether c6:11:71:f9:e4:d8 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::c411:71ff:fef9:e4d8/64 scope link valid_lft forever preferred_lft forever 8: veth9db5a106@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether d6:97:fe:41:9a:ce brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::d497:feff:fe41:9ace/64 scope link valid_lft forever preferred_lft forever 9: veth23e1ad1d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:4c:c6:3f:a3:06 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::6c4c:c6ff:fe3f:a306/64 scope link valid_lft forever preferred_lft forever 10: vethe5004d2f@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 3a:ae:47:c5:ff:53 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::38ae:47ff:fec5:ff53/64 scope link valid_lft forever preferred_lft forever 13: veth2a486951@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 56:1a:e2:6b:e0:9b brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::541a:e2ff:fe6b:e09b/64 scope link valid_lft forever preferred_lft forever 14: veth4ca46b3b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 3e:db:f1:f4:76:49 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::3cdb:f1ff:fef4:7649/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4435) 10/23/26 _x86_64_ (8 CPU) 07:32:00 LINUX RESTART (8 CPU) 07:33:02 tps rtps wtps bread/s bwrtn/s 07:34:01 529.89 42.74 487.15 2266.73 144786.17 07:35:01 181.50 3.10 178.40 426.06 83081.22 07:36:01 173.14 20.56 152.57 797.73 75539.94 07:37:01 100.00 1.12 98.88 71.99 11227.46 Average: 244.95 16.77 228.18 884.87 78382.06 07:33:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:34:01 25389612 30626868 7549608 22.92 137028 5185528 3826916 11.62 2979404 3951820 974492 07:35:01 26970332 31093744 5968888 18.12 138872 4195316 2520248 7.65 2054788 3430908 92696 07:36:01 25234816 30907364 7704404 23.39 148612 5674364 3342244 10.15 2508572 4635160 41116 07:37:01 24808672 30929360 8130548 24.68 154364 6072892 3305768 10.04 2501476 5024460 226548 Average: 25600858 30889334 7338362 22.28 144719 5282025 3248794 9.86 2511060 4260587 333713 07:33:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 07:34:01 cni0 40.08 38.11 21.53 93.99 0.00 0.00 0.88 0.00 07:34:01 veth9db5a106 7.86 9.79 2.38 2.50 0.00 0.00 0.00 0.00 07:34:01 ens3 727.18 434.01 10362.66 39.79 0.00 0.00 0.00 0.00 07:34:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:35:01 cni0 11.68 12.65 2.34 1.42 0.00 0.00 0.08 0.00 07:35:01 veth9db5a106 7.07 8.10 2.09 0.96 0.00 0.00 0.00 0.00 07:35:01 ens3 10.95 8.62 22.12 1.23 0.00 0.00 0.00 0.00 07:35:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:36:01 cni0 12.40 13.53 2.43 1.90 0.00 0.00 0.18 0.00 07:36:01 veth9db5a106 7.37 8.57 2.16 1.11 0.00 0.00 0.00 0.00 07:36:01 ens3 288.09 171.04 6298.50 17.55 0.00 0.00 0.00 0.00 07:36:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:37:01 cni0 12.00 13.11 2.40 1.55 0.00 0.00 0.00 0.00 07:37:01 veth9db5a106 7.33 8.30 2.15 1.06 0.00 0.00 0.00 0.00 07:37:01 ens3 100.70 58.22 1439.51 10.49 0.00 0.00 0.00 0.00 07:37:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: cni0 18.95 19.27 7.12 24.43 0.00 0.00 0.28 0.00 Average: veth9db5a106 7.40 8.68 2.19 1.40 0.00 0.00 0.00 0.00 Average: ens3 279.87 166.86 4506.30 17.17 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 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4435) 10/23/26 _x86_64_ (8 CPU) 07:32:00 LINUX RESTART (8 CPU) 07:33:02 CPU %user %nice %system %iowait %steal %idle 07:34:01 all 39.89 0.00 7.58 3.82 0.02 48.69 07:34:01 0 39.80 0.00 8.51 2.33 0.03 49.32 07:34:01 1 39.47 0.00 8.10 7.50 0.02 44.93 07:34:01 2 40.19 0.00 6.95 4.56 0.02 48.28 07:34:01 3 40.20 0.00 7.05 1.53 0.02 51.20 07:34:01 4 41.70 0.00 7.73 1.41 0.02 49.15 07:34:01 5 37.90 0.00 7.75 3.35 0.02 50.98 07:34:01 6 40.14 0.00 7.57 7.21 0.02 45.07 07:34:01 7 39.73 0.00 7.01 2.69 0.02 50.55 07:35:01 all 41.32 0.00 5.87 0.81 0.02 51.99 07:35:01 0 48.64 0.00 5.79 0.25 0.03 45.28 07:35:01 1 39.80 0.00 5.64 0.28 0.02 54.27 07:35:01 2 40.81 0.00 6.73 0.00 0.02 52.44 07:35:01 3 39.34 0.00 5.36 0.07 0.00 55.23 07:35:01 4 39.74 0.00 6.30 2.39 0.02 51.55 07:35:01 5 39.23 0.00 5.64 0.03 0.03 55.06 07:35:01 6 44.11 0.00 6.01 3.29 0.00 46.58 07:35:01 7 38.86 0.00 5.53 0.13 0.02 55.46 07:36:01 all 8.70 0.19 3.26 1.21 0.01 86.64 07:36:01 0 15.00 0.00 3.30 0.39 0.02 81.29 07:36:01 1 9.64 0.00 3.06 1.16 0.00 86.14 07:36:01 2 8.60 0.00 2.87 0.40 0.00 88.13 07:36:01 3 8.79 1.50 4.27 0.55 0.02 84.87 07:36:01 4 9.44 0.02 3.31 3.11 0.00 84.13 07:36:01 5 6.11 0.00 2.68 0.15 0.02 91.04 07:36:01 6 6.72 0.00 3.35 1.43 0.02 88.48 07:36:01 7 5.27 0.00 3.18 2.46 0.00 89.10 07:37:01 all 11.48 0.00 1.35 0.57 0.01 86.59 07:37:01 0 17.81 0.00 1.77 0.53 0.02 79.87 07:37:01 1 9.74 0.00 1.24 0.23 0.02 88.78 07:37:01 2 13.05 0.00 1.15 0.70 0.02 85.07 07:37:01 3 16.15 0.00 1.10 0.07 0.02 82.67 07:37:01 4 8.48 0.00 1.32 0.18 0.02 90.00 07:37:01 5 5.08 0.00 1.08 0.08 0.00 93.76 07:37:01 6 6.71 0.00 1.17 0.12 0.02 91.98 07:37:01 7 14.76 0.00 1.91 2.66 0.02 80.66 Average: all 25.26 0.05 4.50 1.59 0.01 68.59 Average: 0 30.25 0.00 4.82 0.87 0.03 64.04 Average: 1 24.60 0.00 4.49 2.26 0.01 68.64 Average: 2 25.63 0.00 4.42 1.41 0.01 68.53 Average: 3 26.03 0.38 4.43 0.55 0.01 68.60 Average: 4 24.71 0.00 4.64 1.77 0.01 68.86 Average: 5 22.02 0.00 4.27 0.89 0.02 72.80 Average: 6 24.30 0.00 4.50 2.98 0.01 68.21 Average: 7 24.55 0.00 4.39 1.98 0.01 69.06