---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6284 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/484ea679493ec109c72b312a26d77c78220cef0b181094a9b26f78b38bf81c5a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/2c383c872c3ed44e6b434900a6ba58bacc7867f995bdbfcbb789e6c9e3c60717/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/b34a4cbf61012bcc4cf3c0486bf585fd835e9bc68aebd95175547564db07b88a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/3db50c98a703dd3ae1676a2632bd5131c27eb9b5ca7f34fa9b00b8e69238604b/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1288b2c3234cf60e9bd8be8782bcdad7959237398990053bdf527f4fb7b57691/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1558 24129 1 6479 30152 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:c2:12:b1 brd ff:ff:ff:ff:ff:ff inet 10.30.107.119/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86073sec preferred_lft 86073sec inet6 fe80::f816:3eff:fec2:12b1/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:39:87:87:6f 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::42:39ff:fe87:876f/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether ca:81:31:ab:ce:fd 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::c881:31ff:feab:cefd/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 96:8c:e4:2a:89:17 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::948c:e4ff:fe2a:8917/64 scope link valid_lft forever preferred_lft forever 6: veth69d64773@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether d2:31:30:f8:d3:f7 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::d031:30ff:fef8:d3f7/64 scope link valid_lft forever preferred_lft forever 10: vethfe32ad15@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether be:18:0e:df:f9:fd brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::bc18:eff:fedf:f9fd/64 scope link valid_lft forever preferred_lft forever 11: veth044e58cd@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 8e:59:eb:9c:65:ac brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::8c59:ebff:fe9c:65ac/64 scope link valid_lft forever preferred_lft forever 13: veth0347fba2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 42:ed:cf:44:e1:8b brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::40ed:cfff:fe44:e18b/64 scope link valid_lft forever preferred_lft forever 14: veth2b4abe91@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ca:3f:8a:51:e6:28 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::c83f:8aff:fe51:e628/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6284) 10/29/26 _x86_64_ (8 CPU) 16:09:16 LINUX RESTART (8 CPU) 16:10:01 tps rtps wtps bread/s bwrtn/s 16:11:01 554.03 82.72 471.31 3662.11 191594.54 16:12:01 43.19 0.00 43.19 0.00 25134.48 16:13:01 188.29 3.57 184.72 495.78 96332.61 16:14:01 102.73 20.70 82.04 805.20 12082.12 Average: 222.07 26.75 195.33 1240.87 81290.53 16:10:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:11:01 26414232 30976036 6524988 19.81 117968 4565620 3122428 9.48 2370244 3574192 5140 16:12:01 24890392 30681424 8048828 24.44 122260 5741840 3512284 10.66 3212636 4203376 811944 16:13:01 25523900 30975344 7415320 22.51 127136 5482500 3241108 9.84 2321096 4547380 744 16:14:01 24989132 30905052 7950088 24.14 138368 5904040 3276816 9.95 2507548 4856548 151276 Average: 25454414 30884464 7484806 22.72 126433 5423500 3288159 9.98 2602881 4295374 242276 16:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 16:11:01 vethfe32ad15 1.57 2.13 0.17 0.52 0.00 0.00 0.00 0.00 16:11:01 ens3 752.27 409.95 11294.22 36.41 0.00 0.00 0.00 0.00 16:11:01 vethde6a0c7 130.76 208.70 11.26 1504.04 0.00 0.00 0.00 0.12 16:11:01 docker0 130.76 208.56 9.47 1504.03 0.00 0.00 0.00 0.00 16:12:01 vethfe32ad15 2.82 3.27 0.26 0.34 0.00 0.00 0.00 0.00 16:12:01 ens3 1.47 2.02 0.55 0.16 0.00 0.00 0.00 0.00 16:12:01 vethde6a0c7 0.65 0.67 0.06 0.44 0.00 0.00 0.00 0.00 16:12:01 docker0 0.65 0.63 0.05 0.44 0.00 0.00 0.00 0.00 16:13:01 vethfe32ad15 3.07 3.40 0.28 0.29 0.00 0.00 0.00 0.00 16:13:01 ens3 249.83 132.09 5376.56 12.73 0.00 0.00 0.00 0.00 16:13:01 docker0 0.07 0.10 0.00 0.01 0.00 0.00 0.00 0.00 16:13:01 veth0347fba2 0.17 0.55 0.01 0.04 0.00 0.00 0.00 0.00 16:14:01 vethfe32ad15 3.18 3.38 0.29 0.39 0.00 0.00 0.00 0.00 16:14:01 ens3 104.57 70.54 1689.80 12.23 0.00 0.00 0.00 0.00 16:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:14:01 veth0347fba2 0.02 0.13 0.00 0.01 0.00 0.00 0.00 0.00 Average: vethfe32ad15 2.66 3.05 0.25 0.39 0.00 0.00 0.00 0.00 Average: ens3 277.05 153.66 4590.56 15.39 0.00 0.00 0.00 0.00 Average: docker0 32.87 52.33 2.38 376.17 0.00 0.00 0.00 0.00 Average: veth0347fba2 0.05 0.17 0.00 0.01 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6284) 10/29/26 _x86_64_ (8 CPU) 16:09:16 LINUX RESTART (8 CPU) 16:10:01 CPU %user %nice %system %iowait %steal %idle 16:11:01 all 26.53 0.27 7.34 3.20 0.01 62.65 16:11:01 0 25.73 0.00 7.19 4.82 0.02 62.24 16:11:01 1 26.19 0.00 6.93 0.78 0.00 66.10 16:11:01 2 28.85 1.42 8.51 3.21 0.02 57.99 16:11:01 3 27.79 0.69 7.57 1.82 0.02 62.12 16:11:01 4 26.15 0.02 7.17 4.13 0.02 62.52 16:11:01 5 26.01 0.00 6.83 3.46 0.02 63.69 16:11:01 6 26.45 0.00 7.71 5.86 0.02 59.96 16:11:01 7 25.06 0.00 6.78 1.50 0.02 66.64 16:12:01 all 54.76 0.00 7.05 0.12 0.03 38.04 16:12:01 0 56.38 0.00 7.37 0.40 0.03 35.81 16:12:01 1 51.59 0.00 7.11 0.02 0.05 41.23 16:12:01 2 52.53 0.00 7.10 0.03 0.02 40.32 16:12:01 3 54.85 0.00 7.46 0.08 0.03 37.57 16:12:01 4 58.34 0.00 7.11 0.00 0.02 34.53 16:12:01 5 56.67 0.00 7.01 0.00 0.03 36.28 16:12:01 6 55.42 0.00 6.54 0.00 0.05 37.99 16:12:01 7 52.27 0.00 6.63 0.45 0.02 40.63 16:13:01 all 20.41 0.19 5.31 1.12 0.02 72.95 16:13:01 0 22.28 0.00 6.31 0.23 0.02 71.16 16:13:01 1 20.32 0.00 5.85 1.87 0.02 71.93 16:13:01 2 19.16 0.00 4.84 0.54 0.02 75.45 16:13:01 3 23.15 0.00 4.61 0.15 0.00 72.08 16:13:01 4 18.66 0.00 4.94 1.40 0.02 74.97 16:13:01 5 20.74 0.00 5.72 0.07 0.02 73.46 16:13:01 6 17.82 1.53 4.32 1.31 0.00 75.02 16:13:01 7 21.16 0.00 5.92 3.37 0.05 69.50 16:14:01 all 9.66 0.00 1.61 0.57 0.01 88.16 16:14:01 0 7.47 0.00 1.44 0.10 0.00 91.00 16:14:01 1 9.01 0.00 1.62 0.18 0.02 89.16 16:14:01 2 5.92 0.00 1.22 0.22 0.00 92.64 16:14:01 3 8.89 0.00 1.72 0.38 0.02 88.99 16:14:01 4 4.90 0.00 1.57 1.87 0.00 91.65 16:14:01 5 3.40 0.00 1.37 0.20 0.00 95.03 16:14:01 6 21.37 0.00 1.84 1.15 0.03 75.60 16:14:01 7 16.27 0.00 2.08 0.44 0.02 81.20 Average: all 27.83 0.12 5.32 1.25 0.02 65.47 Average: 0 27.93 0.00 5.57 1.39 0.02 65.09 Average: 1 26.79 0.00 5.37 0.71 0.02 67.11 Average: 2 26.58 0.35 5.41 1.00 0.01 66.66 Average: 3 28.65 0.17 5.33 0.61 0.02 65.21 Average: 4 27.01 0.00 5.19 1.85 0.01 65.93 Average: 5 26.68 0.00 5.23 0.93 0.02 67.15 Average: 6 30.27 0.38 5.10 2.07 0.03 62.16 Average: 7 28.70 0.00 5.34 1.43 0.03 64.50