---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-1999 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 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/f2d9bea29785b77f7cb876d3e1f1087388e9a93f933ac3d8bda5732ff36bf83a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/905c35ec2c2c4e9696669f81671d2f130e392d80a65aca34567fc41b47baf59a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/4859189b777973fd413ff350b38ff062afa74b9f2539cea2e8f3d4cee3d5dabe/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/20331ef6c0c16decd89f7103dc26023421f4c5802d6516640a1ee369660a6306/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/55f62bf1a19c4c2273c51f12f14eb53d7c255412dc319a9dfac68f1bef20f22a/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1504 24235 1 6427 30206 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:9c:7d:0d brd ff:ff:ff:ff:ff:ff inet 10.30.107.70/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86020sec preferred_lft 86020sec inet6 fe80::f816:3eff:fe9c:7d0d/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:7e:ac:68:07 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::42:7eff:feac:6807/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 0e:4b:15:0a:98:92 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::c4b:15ff:fe0a:9892/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 86:73:d4:a4:64:d3 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::8473:d4ff:fea4:64d3/64 scope link valid_lft forever preferred_lft forever 7: vethee14afea@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether e2:4e:2e:3a:53:96 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::e04e:2eff:fe3a:5396/64 scope link valid_lft forever preferred_lft forever 8: veth8d16ebbe@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether de:ee:d7:7c:5b:97 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::dcee:d7ff:fe7c:5b97/64 scope link valid_lft forever preferred_lft forever 9: veth973f5fe0@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 2e:d3:49:08:98:2e brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::2cd3:49ff:fe08:982e/64 scope link valid_lft forever preferred_lft forever 13: veth378ee5eb@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:9f:e2:be:8d:db brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::6c9f:e2ff:febe:8ddb/64 scope link valid_lft forever preferred_lft forever 14: vethbe0aa3c5@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1a:f8:4a:47:19:94 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::18f8:4aff:fe47:1994/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-1999) 11/02/26 _x86_64_ (8 CPU) 09:30:13 LINUX RESTART (8 CPU) 09:31:02 tps rtps wtps bread/s bwrtn/s 09:32:01 463.23 127.01 336.23 7055.91 59300.03 09:33:01 242.11 2.70 239.41 367.14 72127.45 09:34:01 54.64 0.02 54.62 0.13 41110.75 09:35:01 192.35 3.75 188.60 516.58 105819.96 09:36:01 114.16 20.43 93.73 763.47 17866.49 Average: 212.47 30.46 182.01 1723.05 59244.75 09:31:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:32:01 27746684 31156368 5192536 15.76 76824 3587888 2642188 8.02 1813852 2951572 983072 09:33:01 25494560 30896028 7444660 22.60 124280 5354064 3507540 10.65 2803412 4014772 1001660 09:34:01 23790172 30763320 9149048 27.78 126604 6863384 3124252 9.48 3718176 4749364 1657760 09:35:01 25403548 30986468 7535672 22.88 132776 5597056 3357716 10.19 2343668 4633944 155860 09:36:01 24981424 30897660 7957796 24.16 144092 5886620 3415788 10.37 2551548 4816044 195336 Average: 25483278 30939969 7455942 22.64 120915 5457802 3209497 9.74 2646131 4233139 798738 09:31:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:32:01 lo 189.31 189.31 117.38 117.38 0.00 0.00 0.00 0.00 09:32:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:32:01 veth8d16ebbe 1.68 2.22 0.38 0.79 0.00 0.00 0.00 0.00 09:32:01 vethddbcd4c3 1.61 1.98 0.20 3.67 0.00 0.00 0.00 0.00 09:33:01 lo 51.91 51.91 62.99 62.99 0.00 0.00 0.00 0.00 09:33:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:33:01 veth8d16ebbe 7.53 9.32 2.44 2.02 0.00 0.00 0.00 0.00 09:33:01 veth378ee5eb 5.57 4.97 1.12 1.82 0.00 0.00 0.00 0.00 09:34:01 lo 11.75 11.75 3.68 3.68 0.00 0.00 0.00 0.00 09:34:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:34:01 veth8d16ebbe 7.03 8.37 2.13 0.98 0.00 0.00 0.00 0.00 09:34:01 veth378ee5eb 1.48 1.52 0.12 0.19 0.00 0.00 0.00 0.00 09:35:01 lo 36.48 36.48 12.69 12.69 0.00 0.00 0.00 0.00 09:35:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:35:01 veth8d16ebbe 7.27 8.63 2.15 1.04 0.00 0.00 0.00 0.00 09:35:01 veth378ee5eb 1.58 1.78 0.13 0.32 0.00 0.00 0.00 0.00 09:36:01 lo 25.78 25.78 9.07 9.07 0.00 0.00 0.00 0.00 09:36:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:36:01 veth8d16ebbe 7.32 8.40 2.15 1.14 0.00 0.00 0.00 0.00 09:36:01 veth378ee5eb 1.50 1.67 0.13 0.29 0.00 0.00 0.00 0.00 Average: lo 62.63 62.63 40.91 40.91 0.00 0.00 0.00 0.00 Average: flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth8d16ebbe 6.18 7.40 1.85 1.19 0.00 0.00 0.00 0.00 Average: veth378ee5eb 2.03 1.99 0.30 0.53 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-1999) 11/02/26 _x86_64_ (8 CPU) 09:30:13 LINUX RESTART (8 CPU) 09:31:02 CPU %user %nice %system %iowait %steal %idle 09:32:01 all 15.18 0.59 4.48 4.61 0.01 75.12 09:32:01 0 12.74 1.45 4.60 1.04 0.02 80.15 09:32:01 1 16.26 0.02 4.34 10.88 0.02 68.48 09:32:01 2 15.90 0.00 4.25 3.30 0.00 76.55 09:32:01 3 15.22 0.00 4.37 9.12 0.00 71.29 09:32:01 4 12.07 0.00 4.85 6.47 0.00 76.61 09:32:01 5 11.64 0.00 4.06 1.45 0.00 82.85 09:32:01 6 15.97 0.00 4.65 2.48 0.02 76.89 09:32:01 7 21.62 3.23 4.71 2.25 0.02 68.16 09:33:01 all 41.39 0.00 6.20 5.28 0.02 47.11 09:33:01 0 42.18 0.00 6.17 1.90 0.03 49.71 09:33:01 1 40.80 0.00 6.48 11.15 0.02 41.55 09:33:01 2 39.74 0.00 6.06 1.83 0.02 52.34 09:33:01 3 40.72 0.00 5.64 2.00 0.03 51.60 09:33:01 4 43.09 0.00 6.39 17.02 0.02 33.47 09:33:01 5 39.32 0.00 6.33 3.25 0.02 51.08 09:33:01 6 43.03 0.00 6.51 2.81 0.02 47.64 09:33:01 7 42.24 0.00 6.02 2.35 0.02 49.38 09:34:01 all 48.26 0.00 7.98 0.43 0.01 43.31 09:34:01 0 51.05 0.00 8.14 1.86 0.00 38.95 09:34:01 1 45.75 0.00 7.57 0.00 0.02 46.66 09:34:01 2 51.75 0.00 8.40 1.51 0.02 38.32 09:34:01 3 44.71 0.00 8.41 0.07 0.00 46.81 09:34:01 4 52.63 0.00 8.07 0.00 0.03 39.26 09:34:01 5 46.42 0.00 7.58 0.00 0.02 45.98 09:34:01 6 47.63 0.00 7.78 0.00 0.02 44.57 09:34:01 7 46.11 0.00 7.89 0.02 0.03 45.96 09:35:01 all 6.89 0.21 3.44 3.63 0.01 85.82 09:35:01 0 4.69 0.00 3.94 2.58 0.02 88.77 09:35:01 1 9.63 0.02 2.81 0.12 0.00 87.43 09:35:01 2 5.79 0.00 3.82 2.61 0.00 87.78 09:35:01 3 8.30 0.13 3.81 4.19 0.02 83.55 09:35:01 4 6.08 0.00 3.54 1.50 0.00 88.89 09:35:01 5 4.44 0.00 2.59 6.25 0.00 86.72 09:35:01 6 9.56 0.74 4.22 11.66 0.00 73.81 09:35:01 7 6.64 0.76 2.84 0.18 0.00 89.58 09:36:01 all 10.21 0.00 1.20 1.08 0.01 87.50 09:36:01 0 7.79 0.00 1.02 0.62 0.00 90.56 09:36:01 1 8.34 0.00 0.89 0.20 0.02 90.56 09:36:01 2 6.94 0.00 1.42 0.65 0.02 90.97 09:36:01 3 15.21 0.00 1.14 2.41 0.02 81.23 09:36:01 4 4.66 0.00 0.87 3.04 0.02 91.41 09:36:01 5 6.94 0.00 1.15 0.33 0.02 91.56 09:36:01 6 23.78 0.00 1.96 0.97 0.02 73.28 09:36:01 7 8.00 0.00 1.12 0.48 0.00 90.39 Average: all 24.41 0.16 4.66 3.00 0.01 67.76 Average: 0 23.72 0.29 4.77 1.60 0.01 69.60 Average: 1 24.14 0.01 4.41 4.43 0.01 67.00 Average: 2 24.05 0.00 4.79 1.97 0.01 69.18 Average: 3 24.87 0.03 4.67 3.53 0.01 66.88 Average: 4 23.76 0.00 4.75 5.59 0.01 65.89 Average: 5 21.78 0.00 4.34 2.26 0.01 71.61 Average: 6 28.07 0.15 5.02 3.57 0.01 63.18 Average: 7 24.92 0.79 4.51 1.05 0.01 68.71