---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-7006 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: 2799.996 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/8776586932cec920b1c4d59f1ab1863d871c8a84f255d751438d87b0b64510c9/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/96af08591362dbf18def538b4481e540a767fef8059496001c45bfdb064ad2f5/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e5242f97db7b0a7ec3050e69ac60373c02315c9246e4e8aabc481feb397e1893/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/7da783f777ad542337139aa9452e2686ff4f87261eee5edf4b79a7b09e62ca03/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/710a163925727dfc3f25351f23eb8e74ca521019b94382ed80bdf892bf349e62/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1519 24206 1 6441 30191 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:d2:9c:32 brd ff:ff:ff:ff:ff:ff inet 10.30.107.79/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86060sec preferred_lft 86060sec inet6 fe80::f816:3eff:fed2:9c32/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:06:6d:ac:f1 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::42:6ff:fe6d:acf1/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 4e:c5:bc:15:76:74 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::4cc5:bcff:fe15:7674/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 82:2f:43:d4:17:50 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::802f:43ff:fed4:1750/64 scope link valid_lft forever preferred_lft forever 6: vethdc8bc8af@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether fa:7d:cf:c1:d8:37 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::f87d:cfff:fec1:d837/64 scope link valid_lft forever preferred_lft forever 9: veth6d32b27a@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:0d:7a:da:fa:8d brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::600d:7aff:feda:fa8d/64 scope link valid_lft forever preferred_lft forever 10: veth3169ff01@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:22:cc:c9:d5:20 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::3022:ccff:fec9:d520/64 scope link valid_lft forever preferred_lft forever 13: veth977bb377@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 8a:25:5c:71:a5:f9 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::8825:5cff:fe71:a5f9/64 scope link valid_lft forever preferred_lft forever 14: veth67f3b87c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 3e:77:5e:d1:44:01 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::3c77:5eff:fed1:4401/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-7006) 07/08/26 _x86_64_ (8 CPU) 12:34:02 LINUX RESTART (8 CPU) 12:35:03 tps rtps wtps bread/s bwrtn/s 12:36:01 484.90 43.23 441.67 2289.95 141696.54 12:37:01 201.23 0.02 201.22 0.13 78894.45 12:38:01 171.89 3.75 168.14 515.38 82089.12 12:39:01 94.07 20.46 73.60 768.14 11108.42 Average: 235.95 16.64 219.30 881.67 77915.71 12:35:03 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 12:36:01 25696768 30716000 7242452 21.99 134896 4979100 3241960 9.84 2783872 3855632 999580 12:37:01 25484212 31117572 7455008 22.63 137596 5594428 2558888 7.77 2507544 4354516 373456 12:38:01 25390692 30976340 7548528 22.92 142336 5602736 3276956 9.95 2419796 4580388 96592 12:39:01 25028356 30932572 7910864 24.02 152440 5877880 3253072 9.88 2497316 4832740 185120 Average: 25400007 30935621 7539213 22.89 141817 5513536 3082719 9.36 2552132 4405819 413687 12:35:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 12:36:01 veth3169ff01 7.22 8.72 2.23 2.43 0.00 0.00 0.00 0.00 12:36:01 lo 192.88 192.88 167.58 167.58 0.00 0.00 0.00 0.00 12:36:01 veth67f3b87c 4.93 4.41 0.93 1.80 0.00 0.00 0.00 0.00 12:36:01 veth31941eb 191.10 289.09 17.05 1666.72 0.00 0.00 0.00 0.14 12:37:01 veth3169ff01 6.98 8.22 2.08 0.97 0.00 0.00 0.00 0.00 12:37:01 lo 12.08 12.08 3.69 3.69 0.00 0.00 0.00 0.00 12:37:01 veth67f3b87c 1.50 1.58 0.13 0.20 0.00 0.00 0.00 0.00 12:37:01 vethdc8bc8af 0.73 1.80 0.11 0.25 0.00 0.00 0.00 0.00 12:38:01 veth3169ff01 7.47 8.85 2.20 1.10 0.00 0.00 0.00 0.00 12:38:01 lo 41.13 41.13 14.83 14.83 0.00 0.00 0.00 0.00 12:38:01 veth67f3b87c 1.63 1.93 0.14 0.42 0.00 0.00 0.00 0.00 12:38:01 vethdc8bc8af 0.13 0.28 0.01 0.03 0.00 0.00 0.00 0.00 12:39:01 veth3169ff01 7.40 8.30 2.15 1.10 0.00 0.00 0.00 0.00 12:39:01 lo 23.10 23.10 7.34 7.34 0.00 0.00 0.00 0.00 12:39:01 veth67f3b87c 1.48 1.47 0.13 0.19 0.00 0.00 0.00 0.00 12:39:01 vethdc8bc8af 0.12 0.10 0.01 0.02 0.00 0.00 0.00 0.00 Average: veth3169ff01 7.27 8.52 2.16 1.39 0.00 0.00 0.00 0.00 Average: lo 66.24 66.24 47.36 47.36 0.00 0.00 0.00 0.00 Average: veth67f3b87c 2.37 2.33 0.33 0.64 0.00 0.00 0.00 0.00 Average: vethdc8bc8af 0.25 0.55 0.03 0.07 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-7006) 07/08/26 _x86_64_ (8 CPU) 12:34:02 LINUX RESTART (8 CPU) 12:35:03 CPU %user %nice %system %iowait %steal %idle 12:36:01 all 34.82 0.00 7.26 5.07 0.19 52.67 12:36:01 0 33.83 0.00 7.42 6.58 0.19 51.98 12:36:01 1 35.01 0.00 7.86 2.73 0.17 54.23 12:36:01 2 36.36 0.00 7.25 7.65 0.16 48.59 12:36:01 3 36.12 0.00 6.99 6.11 0.19 50.59 12:36:01 4 35.11 0.00 6.91 4.91 0.18 52.89 12:36:01 5 34.47 0.00 6.97 3.32 0.23 55.01 12:36:01 6 32.64 0.00 7.25 2.38 0.16 57.57 12:36:01 7 35.03 0.00 7.40 6.86 0.19 50.52 12:37:01 all 48.26 0.00 6.52 1.09 0.15 43.98 12:37:01 0 53.96 0.00 6.79 0.00 0.15 39.10 12:37:01 1 51.50 0.00 6.69 0.69 0.17 40.95 12:37:01 2 46.71 0.00 7.13 2.19 0.17 43.80 12:37:01 3 47.18 0.00 6.66 2.10 0.13 43.93 12:37:01 4 44.81 0.00 5.95 3.56 0.15 45.52 12:37:01 5 47.23 0.00 6.08 0.00 0.15 46.54 12:37:01 6 48.08 0.00 6.26 0.02 0.14 45.51 12:37:01 7 46.55 0.00 6.62 0.17 0.15 46.50 12:38:01 all 7.24 0.25 3.43 3.11 0.13 85.83 12:38:01 0 6.70 0.00 3.87 1.90 0.19 87.34 12:38:01 1 8.29 0.00 2.81 2.42 0.10 86.38 12:38:01 2 4.75 0.00 3.19 0.86 0.12 91.08 12:38:01 3 7.70 0.00 3.56 8.37 0.13 80.24 12:38:01 4 6.63 0.00 4.58 0.27 0.13 88.39 12:38:01 5 6.48 0.00 2.95 1.14 0.13 89.29 12:38:01 6 8.98 0.00 3.22 8.49 0.15 79.15 12:38:01 7 8.40 2.04 3.25 1.40 0.12 84.80 12:39:01 all 10.47 0.00 1.37 0.72 0.10 87.34 12:39:01 0 7.37 0.00 1.04 0.13 0.10 91.36 12:39:01 1 12.20 0.00 1.30 0.97 0.07 85.47 12:39:01 2 11.72 0.00 1.57 0.67 0.13 85.90 12:39:01 3 7.34 0.00 1.34 0.23 0.07 91.02 12:39:01 4 8.07 0.00 1.19 0.72 0.10 89.91 12:39:01 5 8.11 0.00 0.99 0.37 0.08 90.45 12:39:01 6 9.52 0.00 1.39 2.13 0.10 86.86 12:39:01 7 19.36 0.00 2.16 0.54 0.12 77.82 Average: all 25.08 0.06 4.62 2.47 0.14 67.63 Average: 0 25.39 0.00 4.75 2.11 0.16 67.59 Average: 1 26.65 0.00 4.63 1.69 0.13 66.91 Average: 2 24.74 0.00 4.75 2.79 0.14 67.58 Average: 3 24.46 0.00 4.61 4.18 0.13 66.61 Average: 4 23.53 0.00 4.63 2.34 0.14 69.36 Average: 5 23.94 0.00 4.21 1.19 0.15 70.51 Average: 6 24.70 0.00 4.50 3.26 0.14 67.41 Average: 7 27.24 0.51 4.83 2.19 0.14 65.08