---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-12890 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 1.8M 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/2aa51fbbb37bba166b255cedaa53b097e55b46e2214819c1c6d38738783ddaf9/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/afc863a53a166fe1b8c4f462aec3362bee94e7d19d3417c05a9fee6bc40d5030/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/2843e4871338b39d2ce5c8c44aa91e40d348db59b29a6ac333c2d1b96e57f8f0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/9ccef89fe1fdc768bb52c6ac2ff8b3ef79d82221dbd101f8216bf7a3a6746bad/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a712a88a78bac648ef1d779e965af91d4bdc6092b30709efed39ecefd4cf0d55/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1549 24172 1 6445 30161 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:76:84:08 brd ff:ff:ff:ff:ff:ff inet 10.30.106.155/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86084sec preferred_lft 86084sec inet6 fe80::f816:3eff:fe76:8408/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:b3:d7:87:d2 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:b3ff:fed7:87d2/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether e6:93:4d:88:c6:d9 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::e493:4dff:fe88:c6d9/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 22:2d:ea:98:ab:7e 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::202d:eaff:fe98:ab7e/64 scope link valid_lft forever preferred_lft forever 6: veth8e4131a0@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 0e:ad:03:05:3e:f9 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::cad:3ff:fe05:3ef9/64 scope link valid_lft forever preferred_lft forever 7: vetha073da7f@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether e6:5f:5c:4b:02:2a brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::e45f:5cff:fe4b:22a/64 scope link valid_lft forever preferred_lft forever 8: vethfe11476b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ce:68:9f:eb:78:0d brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::cc68:9fff:feeb:780d/64 scope link valid_lft forever preferred_lft forever 13: vethd87cdc3f@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 22:f5:7f:1b:f0:b0 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::20f5:7fff:fe1b:f0b0/64 scope link valid_lft forever preferred_lft forever 14: veth1580ff40@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 92:2a:97:bd:04:2d brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::902a:97ff:febd:42d/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-12890) 07/14/26 _x86_64_ (8 CPU) 16:44:24 LINUX RESTART (8 CPU) 16:45:02 tps rtps wtps bread/s bwrtn/s 16:46:01 556.23 84.80 471.43 3785.80 143222.78 16:47:01 184.94 0.02 184.92 0.13 80166.77 16:48:01 204.00 3.80 200.20 528.18 129228.46 16:49:01 102.43 20.43 82.01 766.01 12281.64 Average: 260.66 27.02 233.64 1259.49 91004.09 16:45:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:46:01 26659492 31057240 6279728 19.06 134008 4389740 2856748 8.67 2091124 3615472 535024 16:47:01 25274380 30953608 7664840 23.27 141724 5605500 3617692 10.98 2899112 4128120 745504 16:48:01 25497300 30970196 7441920 22.59 146332 5486568 3298212 10.01 2348944 4546364 59424 16:49:01 25012220 30919916 7927000 24.07 155840 5877680 3307176 10.04 2509516 4832600 183752 Average: 25610848 30975240 7328372 22.25 144476 5339872 3269957 9.93 2462174 4280639 380926 16:45:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 16:46:01 docker0 174.85 264.07 13.39 1637.04 0.00 0.00 0.00 0.00 16:46:01 veth8e4131a0 5.71 7.64 1.78 2.33 0.00 0.00 0.00 0.00 16:46:01 lo 224.11 224.11 173.87 173.87 0.00 0.00 0.00 0.00 16:46:01 veth1580ff40 4.37 3.93 0.83 1.62 0.00 0.00 0.00 0.00 16:47:01 docker0 7.08 9.25 0.50 19.19 0.00 0.00 0.00 0.00 16:47:01 veth8e4131a0 6.65 7.95 1.97 0.93 0.00 0.00 0.00 0.00 16:47:01 lo 12.43 12.43 3.73 3.73 0.00 0.00 0.00 0.00 16:47:01 veth1580ff40 1.52 1.65 0.13 0.20 0.00 0.00 0.00 0.00 16:48:01 docker0 0.03 0.07 0.00 0.01 0.00 0.00 0.00 0.00 16:48:01 veth8e4131a0 7.33 8.47 2.15 0.99 0.00 0.00 0.00 0.00 16:48:01 lo 33.26 33.26 11.20 11.20 0.00 0.00 0.00 0.00 16:48:01 veth1580ff40 1.55 1.73 0.13 0.28 0.00 0.00 0.00 0.00 16:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:49:01 veth8e4131a0 7.26 8.53 2.14 1.19 0.00 0.00 0.00 0.00 16:49:01 lo 29.72 29.72 10.62 10.62 0.00 0.00 0.00 0.00 16:49:01 veth1580ff40 1.58 1.67 0.13 0.33 0.00 0.00 0.00 0.00 Average: docker0 44.95 67.53 3.43 408.93 0.00 0.00 0.00 0.00 Average: veth8e4131a0 6.74 8.15 2.01 1.36 0.00 0.00 0.00 0.00 Average: lo 74.26 74.26 49.34 49.34 0.00 0.00 0.00 0.00 Average: veth1580ff40 2.25 2.24 0.30 0.60 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-12890) 07/14/26 _x86_64_ (8 CPU) 16:44:24 LINUX RESTART (8 CPU) 16:45:02 CPU %user %nice %system %iowait %steal %idle 16:46:01 all 15.13 0.65 5.65 3.18 0.13 75.26 16:46:01 0 17.38 0.00 5.28 2.52 0.12 74.70 16:46:01 1 14.72 0.00 5.79 1.20 0.10 78.19 16:46:01 2 13.89 0.00 6.04 5.30 0.14 74.63 16:46:01 3 15.84 0.00 5.89 2.38 0.14 75.76 16:46:01 4 14.13 0.00 5.46 3.73 0.12 76.56 16:46:01 5 16.13 0.00 5.53 2.54 0.14 75.66 16:46:01 6 13.46 5.23 5.64 4.37 0.15 71.16 16:46:01 7 15.48 0.00 5.58 3.41 0.12 75.42 16:47:01 all 53.63 0.00 6.45 0.41 0.10 39.41 16:47:01 0 51.83 0.00 6.49 0.03 0.10 41.54 16:47:01 1 53.31 0.00 5.96 0.49 0.10 40.14 16:47:01 2 53.04 0.00 5.99 0.00 0.10 40.87 16:47:01 3 60.03 0.00 7.03 0.07 0.10 32.78 16:47:01 4 55.29 0.00 7.17 0.39 0.10 37.05 16:47:01 5 52.72 0.00 6.12 1.68 0.10 39.38 16:47:01 6 50.46 0.00 6.16 0.05 0.08 43.25 16:47:01 7 52.36 0.00 6.63 0.62 0.10 40.28 16:48:01 all 17.63 0.21 4.51 1.53 0.08 76.04 16:48:01 0 19.00 0.00 4.25 0.17 0.08 76.49 16:48:01 1 16.17 0.00 5.97 2.03 0.08 75.75 16:48:01 2 16.60 0.08 4.41 1.77 0.08 77.04 16:48:01 3 16.02 1.57 4.82 1.38 0.10 76.11 16:48:01 4 15.62 0.00 4.37 3.09 0.08 76.84 16:48:01 5 17.80 0.00 4.67 1.20 0.07 76.26 16:48:01 6 20.57 0.00 4.00 1.86 0.08 73.48 16:48:01 7 19.25 0.00 3.57 0.76 0.08 76.34 16:49:01 all 9.81 0.00 1.30 0.55 0.06 88.28 16:49:01 0 2.52 0.00 1.11 0.69 0.05 95.64 16:49:01 1 9.59 0.00 1.32 0.80 0.05 88.24 16:49:01 2 9.51 0.00 1.17 0.15 0.07 89.10 16:49:01 3 11.00 0.00 1.22 0.33 0.07 87.38 16:49:01 4 9.13 0.00 1.73 0.47 0.07 88.61 16:49:01 5 13.14 0.00 1.24 1.22 0.07 84.34 16:49:01 6 8.75 0.00 1.26 0.45 0.07 89.47 16:49:01 7 14.83 0.00 1.39 0.28 0.07 83.42 Average: all 24.07 0.21 4.47 1.41 0.09 69.74 Average: 0 22.68 0.00 4.28 0.85 0.09 72.10 Average: 1 23.46 0.00 4.75 1.13 0.08 70.58 Average: 2 23.29 0.02 4.39 1.79 0.10 70.41 Average: 3 25.76 0.39 4.73 1.03 0.10 67.99 Average: 4 23.57 0.00 4.67 1.91 0.09 69.75 Average: 5 24.99 0.00 4.38 1.66 0.09 68.89 Average: 6 23.34 1.29 4.25 1.67 0.10 69.36 Average: 7 25.50 0.00 4.28 1.26 0.09 68.87