---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6261 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/abb293e072e9c31a07d1c8e3284b23ad630d3004441b93f899e192eaf4b443b7/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/78effeeb630db9c23857dddefc456aae7924e13d559ddf2d3b242b51dccc76c7/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f9f28655e3c10cfcfac08bf92d674e13392c2ed7ea59926a3950d5cc55e1f275/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f51167d48464c611ef4d16e368ca491fb6ebbbf6bf9406901b413cf638445dd4/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/9e929bb14cc0262c7ee3ab3591c8aa6b05c9255206edda9ea38bb7d61d7d591c/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1585 24140 1 6440 30124 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:bc:a2:d8 brd ff:ff:ff:ff:ff:ff inet 10.30.107.154/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86082sec preferred_lft 86082sec inet6 fe80::f816:3eff:febc:a2d8/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:9c:a1:76:ab 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::42:9cff:fea1:76ab/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether ce:30:98:ab:a0:a1 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::cc30:98ff:feab:a0a1/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether c2:d8:b5:b5:4e:33 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::c0d8:b5ff:feb5:4e33/64 scope link valid_lft forever preferred_lft forever 8: veth866f0722@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 5e:e8:49:7c:89:e4 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::5ce8:49ff:fe7c:89e4/64 scope link valid_lft forever preferred_lft forever 9: veth103519d1@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ca:b0:6a:4e:80:22 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::c8b0:6aff:fe4e:8022/64 scope link valid_lft forever preferred_lft forever 10: vethfaf75ed9@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1a:af:4c:a7:7b:57 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::18af:4cff:fea7:7b57/64 scope link valid_lft forever preferred_lft forever 13: vethf3bc84f2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 5e:25:a1:cb:79:49 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::5c25:a1ff:fecb:7949/64 scope link valid_lft forever preferred_lft forever 14: veth4a4ac7d9@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ea:d8:42:d3:56:16 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::e8d8:42ff:fed3:5616/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6261) 07/07/26 _x86_64_ (8 CPU) 13:38:33 LINUX RESTART (8 CPU) 13:39:01 tps rtps wtps bread/s bwrtn/s 13:40:01 759.17 91.65 667.52 4044.53 190683.95 13:41:01 182.74 0.03 182.70 0.27 53338.58 13:42:01 190.42 3.40 187.02 447.39 94712.21 13:43:01 98.20 21.25 76.95 820.80 11614.86 Average: 307.63 29.08 278.55 1328.25 87587.40 13:39:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 13:40:01 26617984 31010396 6321236 19.19 129348 4389436 2882648 8.75 2132184 3617024 562152 13:41:01 25161164 30777780 7778056 23.61 137204 5549568 3727972 11.32 3044772 4099000 741592 13:42:01 25531084 30937684 7408136 22.49 142104 5425672 3252292 9.87 2370628 4492480 764 13:43:01 24955552 30817008 7983668 24.24 151588 5840400 3398392 10.32 2606892 4794536 153984 Average: 25566446 30885717 7372774 22.38 140061 5301269 3315326 10.06 2538619 4250760 364623 13:39:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 13:40:01 veth4a4ac7d9 5.10 4.23 1.06 1.78 0.00 0.00 0.00 0.00 13:40:01 docker0 165.02 186.57 12.96 1604.46 0.00 0.00 0.00 0.00 13:40:01 vethf3bc84f2 0.12 0.37 0.01 0.03 0.00 0.00 0.00 0.00 13:40:01 ens3 997.43 753.06 12147.28 106.49 0.00 0.00 0.00 0.00 13:41:01 veth4a4ac7d9 1.53 1.70 0.13 0.20 0.00 0.00 0.00 0.00 13:41:01 docker0 7.30 9.02 0.53 19.24 0.00 0.00 0.00 0.00 13:41:01 vethf3bc84f2 0.05 0.20 0.00 0.01 0.00 0.00 0.00 0.00 13:41:01 ens3 13.81 10.25 21.41 2.22 0.00 0.00 0.00 0.00 13:42:01 veth4a4ac7d9 1.47 1.53 0.12 0.19 0.00 0.00 0.00 0.00 13:42:01 docker0 0.03 0.07 0.00 0.01 0.00 0.00 0.00 0.00 13:42:01 vethf3bc84f2 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 13:42:01 ens3 205.50 118.48 5374.46 11.36 0.00 0.00 0.00 0.00 13:43:01 veth4a4ac7d9 1.65 1.82 0.14 0.41 0.00 0.00 0.00 0.00 13:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 13:43:01 vethf3bc84f2 0.00 0.12 0.00 0.01 0.00 0.00 0.00 0.00 13:43:01 ens3 226.01 151.91 1634.35 19.85 0.00 0.00 0.00 0.00 Average: veth4a4ac7d9 2.44 2.32 0.36 0.65 0.00 0.00 0.00 0.00 Average: docker0 43.09 48.91 3.37 405.93 0.00 0.00 0.00 0.00 Average: vethf3bc84f2 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 Average: ens3 360.69 258.42 4794.37 34.98 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6261) 07/07/26 _x86_64_ (8 CPU) 13:38:33 LINUX RESTART (8 CPU) 13:39:01 CPU %user %nice %system %iowait %steal %idle 13:40:01 all 16.96 0.67 5.52 3.66 0.09 73.10 13:40:01 0 14.40 1.83 5.06 5.65 0.08 72.96 13:40:01 1 18.23 1.50 4.57 5.70 0.08 69.92 13:40:01 2 14.59 0.00 5.45 2.14 0.08 77.73 13:40:01 3 17.56 1.99 5.96 2.24 0.10 72.16 13:40:01 4 15.21 0.00 5.74 2.69 0.10 76.25 13:40:01 5 17.43 0.02 5.49 2.20 0.10 74.77 13:40:01 6 16.30 0.00 5.95 5.15 0.08 72.52 13:40:01 7 21.96 0.00 5.85 3.55 0.12 68.52 13:41:01 all 54.07 0.00 6.77 0.47 0.11 38.58 13:41:01 0 56.93 0.00 6.81 0.03 0.10 36.12 13:41:01 1 52.84 0.00 6.43 0.07 0.10 40.57 13:41:01 2 55.01 0.00 8.05 2.51 0.13 34.30 13:41:01 3 52.17 0.00 6.06 0.44 0.10 41.23 13:41:01 4 54.02 0.00 6.64 0.03 0.10 39.21 13:41:01 5 54.36 0.00 6.30 0.14 0.12 39.08 13:41:01 6 51.49 0.00 6.95 0.47 0.12 40.97 13:41:01 7 55.77 0.00 6.97 0.02 0.10 37.14 13:42:01 all 19.43 0.25 4.68 1.45 0.09 74.10 13:42:01 0 25.28 0.00 5.92 0.47 0.08 68.25 13:42:01 1 20.74 0.00 4.37 0.05 0.08 74.75 13:42:01 2 17.71 0.99 4.25 2.54 0.10 74.40 13:42:01 3 16.47 0.88 3.81 0.61 0.08 78.15 13:42:01 4 17.67 0.00 5.60 0.40 0.08 76.24 13:42:01 5 18.97 0.00 4.52 2.55 0.10 73.87 13:42:01 6 17.36 0.13 4.67 4.69 0.10 73.05 13:42:01 7 21.26 0.00 4.26 0.30 0.08 74.10 13:43:01 all 9.01 0.00 1.46 0.49 0.07 88.97 13:43:01 0 9.81 0.00 1.49 0.25 0.07 88.38 13:43:01 1 15.83 0.00 2.09 0.92 0.07 81.09 13:43:01 2 5.90 0.00 1.81 1.02 0.07 91.20 13:43:01 3 4.46 0.00 0.96 0.03 0.05 94.50 13:43:01 4 9.65 0.00 1.38 0.34 0.07 88.57 13:43:01 5 13.96 0.00 1.27 1.12 0.07 83.58 13:43:01 6 6.13 0.00 1.12 0.15 0.07 92.52 13:43:01 7 6.36 0.00 1.49 0.08 0.07 92.00 Average: all 24.86 0.23 4.60 1.52 0.09 68.71 Average: 0 26.61 0.46 4.82 1.60 0.08 66.42 Average: 1 26.90 0.37 4.36 1.68 0.08 66.60 Average: 2 23.28 0.25 4.89 2.05 0.10 69.44 Average: 3 22.65 0.72 4.19 0.83 0.08 71.53 Average: 4 24.13 0.00 4.83 0.87 0.09 70.08 Average: 5 26.17 0.00 4.39 1.50 0.10 67.84 Average: 6 22.81 0.03 4.67 2.61 0.09 69.78 Average: 7 26.31 0.00 4.64 0.99 0.09 67.97