---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4436 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/3c64c8edde5dfe7e3ce62f0c7c89bf9d7e463bff3aa41b8cb46c60dede9a2ddf/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f9e514e337674319798a2b00053efee5d1c54624ee798503960994c64381ea72/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/0658c62b16bb6ae5eb10fcb96f9ca1ef912298cb9c2b1128aa6c689d1214b6a3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/9e8aa603cd093966b092206c3761cb7c2bcd377f1ccb63131500f9aae0d7e5dd/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/0d4b719351923102fffcc75c0e5b76f8c538ce308eed9a1604cef91a5c773f09/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1555 24179 1 6432 30154 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:68:76:82 brd ff:ff:ff:ff:ff:ff inet 10.30.106.110/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 85900sec preferred_lft 85900sec inet6 fe80::f816:3eff:fe68:7682/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:d3:13:5a:c3 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:d3ff:fe13:5ac3/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether e2:34:2c:56:7b:ac 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::e034:2cff:fe56:7bac/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 0a:25:0f:14:21:f5 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::4071:cfff:fe06:dbf/64 scope link valid_lft forever preferred_lft forever 6: vethc37044a3@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 0a:25:0f:14:21:f5 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::825:fff:fe14:21f5/64 scope link valid_lft forever preferred_lft forever 7: veth36c66642@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:e4:0c:ae:70:be brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::6ce4:cff:feae:70be/64 scope link valid_lft forever preferred_lft forever 8: vetha9f08dfe@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 92:88:df:b1:d0:bd brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::9088:dfff:feb1:d0bd/64 scope link valid_lft forever preferred_lft forever 11: vethb206b95c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:12:01:0b:ec:f6 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::6012:1ff:fe0b:ecf6/64 scope link valid_lft forever preferred_lft forever 12: veth1ffac394@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:c3:f7:a9:5a:86 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::1cc3:f7ff:fea9:5a86/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4436) 10/23/26 _x86_64_ (8 CPU) 07:32:31 LINUX RESTART (8 CPU) 07:33:01 tps rtps wtps bread/s bwrtn/s 07:34:01 57.93 0.00 57.93 0.00 80918.09 07:35:01 23.96 0.00 23.96 0.00 36027.72 07:36:01 185.20 4.52 180.69 160.37 1810.36 07:37:01 596.97 84.74 512.23 3765.54 98119.03 07:38:01 167.36 0.02 167.34 0.13 40167.71 07:39:01 187.25 3.67 183.59 498.05 93538.28 07:40:01 97.27 20.81 76.46 828.79 11307.30 Average: 187.99 16.25 171.74 750.45 51698.82 07:33:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:34:01 30655500 31895108 2283720 6.93 38624 1528904 1302692 3.83 618176 1411848 136 07:35:01 30654460 31894220 2284760 6.94 38700 1528908 1302692 3.83 619164 1411824 168 07:36:01 30486072 31762368 2453148 7.45 41580 1560424 1332288 3.92 758992 1434636 16476 07:37:01 26418104 30931924 6521116 19.80 129872 4502152 3732624 11.33 2310816 3622744 736940 07:38:01 25076164 30572760 7863056 23.87 134876 5437372 3768012 11.44 3189524 4041972 575840 07:39:01 25584452 30990004 7354768 22.33 139912 5427148 3232916 9.81 2316708 4495292 660 07:40:01 25001544 30869044 7937676 24.10 148912 5848136 3343524 10.15 2551912 4803704 161248 Average: 27696614 31273633 5242606 15.92 96068 3690435 2573535 7.81 1766470 3031717 213067 07:33:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 07:34:01 ens3 2.00 1.20 1.79 1.15 0.00 0.00 0.00 0.00 07:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:34:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:35:01 ens3 0.25 0.12 0.06 0.16 0.00 0.00 0.00 0.00 07:35:01 lo 0.20 0.20 0.01 0.01 0.00 0.00 0.00 0.00 07:35:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:36:01 ens3 105.73 77.79 225.07 25.50 0.00 0.00 0.00 0.00 07:36:01 lo 0.13 0.13 0.01 0.01 0.00 0.00 0.00 0.00 07:36:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:37:01 vethb206b95c 0.13 0.43 0.01 0.03 0.00 0.00 0.00 0.00 07:37:01 veth36c66642 1.97 2.87 0.21 0.66 0.00 0.00 0.00 0.00 07:37:01 ens3 779.66 471.16 11830.32 60.89 0.00 0.00 0.00 0.00 07:37:01 veth1ffac394 4.13 3.63 0.82 1.57 0.00 0.00 0.00 0.00 07:38:01 vethb206b95c 0.03 0.13 0.00 0.01 0.00 0.00 0.00 0.00 07:38:01 veth36c66642 2.77 3.22 0.26 0.28 0.00 0.00 0.00 0.00 07:38:01 ens3 9.93 7.58 19.37 0.96 0.00 0.00 0.00 0.00 07:38:01 veth1ffac394 1.50 1.60 0.13 0.20 0.00 0.00 0.00 0.00 07:39:01 vethb206b95c 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 07:39:01 veth36c66642 3.10 3.33 0.29 0.29 0.00 0.00 0.00 0.00 07:39:01 ens3 266.02 131.88 5377.43 11.88 0.00 0.00 0.00 0.00 07:39:01 veth1ffac394 1.48 1.53 0.12 0.19 0.00 0.00 0.00 0.00 07:40:01 vethb206b95c 0.00 0.10 0.00 0.01 0.00 0.00 0.00 0.00 07:40:01 veth36c66642 3.15 3.52 0.29 0.40 0.00 0.00 0.00 0.00 07:40:01 ens3 113.41 70.26 1666.59 12.06 0.00 0.00 0.00 0.00 07:40:01 veth1ffac394 1.63 1.78 0.14 0.41 0.00 0.00 0.00 0.00 Average: vethb206b95c 0.03 0.11 0.00 0.01 0.00 0.00 0.00 0.00 Average: veth36c66642 1.57 1.85 0.15 0.23 0.00 0.00 0.00 0.00 Average: ens3 182.43 108.57 2731.58 16.09 0.00 0.00 0.00 0.00 Average: veth1ffac394 1.25 1.22 0.17 0.34 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4436) 10/23/26 _x86_64_ (8 CPU) 07:32:31 LINUX RESTART (8 CPU) 07:33:01 CPU %user %nice %system %iowait %steal %idle 07:34:01 all 0.13 0.00 0.02 0.82 0.00 99.03 07:34:01 0 0.27 0.00 0.03 0.00 0.00 99.70 07:34:01 1 0.07 0.00 0.02 0.00 0.00 99.92 07:34:01 2 0.00 0.00 0.00 6.43 0.00 93.57 07:34:01 3 0.03 0.00 0.02 0.00 0.00 99.95 07:34:01 4 0.10 0.00 0.02 0.13 0.00 99.75 07:34:01 5 0.40 0.00 0.03 0.00 0.00 99.57 07:34:01 6 0.03 0.00 0.00 0.00 0.00 99.97 07:34:01 7 0.12 0.00 0.05 0.02 0.00 99.82 07:35:01 all 0.12 0.00 0.01 0.37 0.00 99.50 07:35:01 0 0.10 0.00 0.02 0.00 0.00 99.88 07:35:01 1 0.03 0.00 0.00 0.00 0.00 99.97 07:35:01 2 0.00 0.00 0.00 2.92 0.00 97.08 07:35:01 3 0.03 0.00 0.00 0.00 0.00 99.97 07:35:01 4 0.02 0.00 0.02 0.07 0.00 99.90 07:35:01 5 0.80 0.00 0.02 0.00 0.00 99.19 07:35:01 6 0.00 0.00 0.02 0.00 0.00 99.98 07:35:01 7 0.02 0.00 0.00 0.00 0.00 99.98 07:36:01 all 1.72 0.00 0.20 0.30 0.00 97.77 07:36:01 0 1.93 0.00 0.08 0.00 0.00 97.98 07:36:01 1 0.93 0.00 0.05 0.00 0.00 99.02 07:36:01 2 2.43 0.00 0.33 0.07 0.00 97.17 07:36:01 3 0.47 0.00 0.20 0.00 0.00 99.33 07:36:01 4 0.63 0.00 0.08 0.05 0.00 99.23 07:36:01 5 2.41 0.00 0.10 0.07 0.00 97.42 07:36:01 6 2.37 0.00 0.58 2.20 0.00 94.85 07:36:01 7 2.57 0.00 0.13 0.00 0.00 97.30 07:37:01 all 21.96 0.65 7.07 2.61 0.02 67.69 07:37:01 0 23.30 0.00 7.02 1.46 0.03 68.19 07:37:01 1 28.11 3.63 6.65 1.51 0.00 60.10 07:37:01 2 22.72 0.03 7.72 4.72 0.02 64.79 07:37:01 3 20.62 0.00 7.13 1.86 0.02 70.38 07:37:01 4 20.29 0.00 7.49 3.18 0.02 69.03 07:37:01 5 20.63 0.00 6.66 1.18 0.02 71.51 07:37:01 6 19.56 0.00 7.21 4.49 0.02 68.72 07:37:01 7 20.41 1.48 6.73 2.55 0.03 68.80 07:38:01 all 53.88 0.00 6.96 0.30 0.02 38.84 07:38:01 0 52.66 0.00 6.82 0.00 0.00 40.51 07:38:01 1 55.65 0.00 7.00 0.86 0.03 36.46 07:38:01 2 53.93 0.00 7.21 0.52 0.02 38.33 07:38:01 3 55.00 0.00 6.67 0.02 0.02 38.30 07:38:01 4 53.28 0.00 7.42 0.22 0.02 39.07 07:38:01 5 53.53 0.00 7.39 0.03 0.03 39.01 07:38:01 6 54.05 0.00 6.41 0.15 0.02 39.37 07:38:01 7 52.99 0.00 6.82 0.54 0.02 39.63 07:39:01 all 28.00 0.27 6.35 1.06 0.02 64.31 07:39:01 0 28.16 0.37 5.75 0.13 0.02 65.57 07:39:01 1 31.37 1.76 5.85 0.17 0.02 60.84 07:39:01 2 28.20 0.00 6.82 3.15 0.02 61.82 07:39:01 3 25.47 0.00 6.27 1.56 0.03 66.67 07:39:01 4 26.12 0.00 7.81 1.43 0.00 64.63 07:39:01 5 25.43 0.00 5.52 0.14 0.02 68.89 07:39:01 6 27.62 0.00 6.11 1.67 0.02 64.59 07:39:01 7 31.62 0.00 6.62 0.24 0.02 61.50 07:40:01 all 8.91 0.00 1.73 0.52 0.01 88.84 07:40:01 0 8.66 0.00 1.90 0.12 0.02 89.31 07:40:01 1 16.32 0.00 1.91 0.77 0.00 81.01 07:40:01 2 4.45 0.00 1.52 0.03 0.00 93.99 07:40:01 3 8.82 0.00 1.68 0.42 0.00 89.08 07:40:01 4 8.00 0.00 1.90 1.90 0.02 88.19 07:40:01 5 7.02 0.00 1.52 0.45 0.00 91.00 07:40:01 6 11.86 0.00 1.91 0.37 0.02 85.85 07:40:01 7 6.13 0.00 1.47 0.05 0.00 92.34 Average: all 16.33 0.13 3.18 0.85 0.01 79.50 Average: 0 16.39 0.05 3.08 0.24 0.01 80.23 Average: 1 18.86 0.77 3.06 0.47 0.01 76.84 Average: 2 15.90 0.00 3.36 2.55 0.01 78.18 Average: 3 15.72 0.00 3.12 0.55 0.01 80.61 Average: 4 15.44 0.00 3.52 0.99 0.01 80.04 Average: 5 15.69 0.00 3.02 0.27 0.01 81.01 Average: 6 16.43 0.00 3.16 1.26 0.01 79.14 Average: 7 16.19 0.21 3.10 0.48 0.01 80.00