---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-46170 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 nrip_save umip rdpid arch_capabilities ---> nproc: 8 ---> df -h: Filesystem Size Used Avail Use% Mounted on udev 16G 0 16G 0% /dev tmpfs 3.2G 1.6M 3.2G 1% /run /dev/vda1 155G 12G 144G 8% / 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/6aaae760521ffb0a7a792872680c338b4cfb3c9757fd25c727e4f0fda1d58087/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e07443b49d2ea58399ae4679a6d628381781b7142d58d199f5901c97fb102300/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/0caa6cea7c78ce68e41ae55b9fdfc81b6b88e75940114711943b55f31050ae16/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/48c6a0a0ac666468f13c86333e3c545f6190dc24e3cc6ef65c5297ae8264534d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/4938f11f673f24a89d2346e5410cc8a01bc712b773d44995f05a44c071942d38/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1441 27186 1 3539 30272 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:31:94:ad brd ff:ff:ff:ff:ff:ff inet 10.30.107.245/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86232sec preferred_lft 86232sec inet6 fe80::f816:3eff:fe31:94ad/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:39:f2:66:aa 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 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 16:55:1d:9d:c9:d3 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::1455:1dff:fe9d:c9d3/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 22:44:6a:54:eb:82 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::2044:6aff:fe54:eb82/64 scope link valid_lft forever preferred_lft forever 8: veth66fcabe4@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether d6:11:27:e9:00:37 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::d411:27ff:fee9:37/64 scope link valid_lft forever preferred_lft forever 9: veth14ebe723@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 56:46:c7:b7:60:e2 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::5446:c7ff:feb7:60e2/64 scope link valid_lft forever preferred_lft forever 10: vethde04482c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 72:fb:d5:9e:62:4c brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::70fb:d5ff:fe9e:624c/64 scope link valid_lft forever preferred_lft forever 11: veth78cf9f86@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 22:5c:84:9a:61:e1 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::205c:84ff:fe9a:61e1/64 scope link valid_lft forever preferred_lft forever 12: veth168f6725@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 52:70:d7:30:86:60 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::5070:d7ff:fe30:8660/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-46170) 09/16/25 _x86_64_ (8 CPU) 08:49:23 LINUX RESTART (8 CPU) 08:50:01 tps rtps wtps bread/s bwrtn/s 08:51:01 504.18 64.94 439.24 2315.75 82816.06 08:52:01 125.23 1.25 123.98 99.45 44824.93 Average: 314.71 33.09 281.61 1207.60 63820.50 08:50:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:51:01 28127992 30989404 4811228 14.61 67780 3082196 2450288 7.44 1982288 2452100 227520 08:52:01 27831016 30989204 5108204 15.51 92488 3337632 2497812 7.58 2002548 2694804 119808 Average: 27979504 30989304 4959716 15.06 80134 3209914 2474050 7.51 1992418 2573452 173664 08:50:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:51:01 cni0 37.83 34.44 35.03 106.81 0.00 0.00 0.75 0.00 08:51:01 veth66fcabe4 2.47 3.58 0.75 1.75 0.00 0.00 0.00 0.00 08:51:01 veth14ebe723 0.48 1.27 0.09 0.19 0.00 0.00 0.00 0.00 08:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:52:01 cni0 11.60 13.26 3.28 2.71 0.00 0.00 0.20 0.00 08:52:01 veth66fcabe4 7.20 8.77 3.05 1.97 0.00 0.00 0.00 0.00 08:52:01 veth14ebe723 0.18 0.32 0.01 0.03 0.00 0.00 0.00 0.00 08:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: cni0 24.71 23.85 19.15 54.76 0.00 0.00 0.47 0.00 Average: veth66fcabe4 4.83 6.17 1.90 1.86 0.00 0.00 0.00 0.00 Average: veth14ebe723 0.33 0.79 0.05 0.11 0.00 0.00 0.00 0.00 Average: docker0 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-46170) 09/16/25 _x86_64_ (8 CPU) 08:49:23 LINUX RESTART (8 CPU) 08:50:01 CPU %user %nice %system %iowait %steal %idle 08:51:01 all 13.49 0.75 3.60 2.61 0.07 79.48 08:51:01 0 18.79 0.02 4.07 2.24 0.07 74.82 08:51:01 1 10.29 0.00 3.15 1.63 0.05 84.88 08:51:01 2 13.24 0.00 4.46 4.45 0.07 77.78 08:51:01 3 11.71 0.00 3.50 0.87 0.08 83.83 08:51:01 4 10.61 1.75 3.74 4.60 0.07 79.24 08:51:01 5 11.15 0.00 3.19 4.47 0.08 81.10 08:51:01 6 16.14 0.00 3.39 1.41 0.07 78.99 08:51:01 7 16.02 4.22 3.23 1.26 0.07 75.20 08:52:01 all 10.55 0.00 1.04 1.16 0.06 87.19 08:52:01 0 7.47 0.00 0.92 0.25 0.03 91.33 08:52:01 1 4.97 0.00 0.80 0.40 0.05 93.78 08:52:01 2 7.98 0.00 1.18 2.29 0.07 88.48 08:52:01 3 25.93 0.00 1.25 0.47 0.07 72.28 08:52:01 4 6.83 0.00 0.70 0.34 0.07 92.06 08:52:01 5 23.30 0.00 2.14 1.54 0.08 72.93 08:52:01 6 3.25 0.00 0.67 0.42 0.03 95.63 08:52:01 7 4.70 0.00 0.69 3.55 0.05 91.02 Average: all 12.02 0.37 2.32 1.88 0.06 83.34 Average: 0 13.12 0.01 2.49 1.25 0.05 83.08 Average: 1 7.63 0.00 1.98 1.01 0.05 89.33 Average: 2 10.60 0.00 2.82 3.36 0.07 83.15 Average: 3 18.84 0.00 2.37 0.67 0.08 78.04 Average: 4 8.72 0.87 2.22 2.46 0.07 85.66 Average: 5 17.24 0.00 2.67 3.00 0.08 77.01 Average: 6 9.68 0.00 2.02 0.91 0.05 87.33 Average: 7 10.35 2.11 1.96 2.40 0.06 83.12