---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6301 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/dfd89cafcd63d6f8244d834e359d6a14ebea608200d5f770a79999314089b274/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/b35cec9dc0ef01d20b4a33d177bdd7156b1817ef957ef0096fef1d9e9c210321/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/59d2fd1499aebd8cb8864f0236bf9eead78952ffc013697da412d17db570bc9e/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/db5bfa8eea082d73e114a8ec2449c356b39443422049070dada42a63091ef874/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f379d918e5a1c50ddbc63ee190623371bf19a3addc07bb5a607bb3f4c2f1b3ae/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1538 24205 1 6422 30172 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:57:e3:65 brd ff:ff:ff:ff:ff:ff inet 10.30.107.150/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86052sec preferred_lft 86052sec inet6 fe80::f816:3eff:fe57:e365/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:20:63:37:8e 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::42:20ff:fe63:378e/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether d6:dc:9e:50:65:99 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::d4dc:9eff:fe50:6599/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 96:7f:f4:b0:14:2b 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::947f:f4ff:feb0:142b/64 scope link valid_lft forever preferred_lft forever 8: veth1e97579e@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 5e:41:6e:7f:9f:06 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::5c41:6eff:fe7f:9f06/64 scope link valid_lft forever preferred_lft forever 9: veth34d5fd8b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 3a:80:19:0c:d3:b6 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::3880:19ff:fe0c:d3b6/64 scope link valid_lft forever preferred_lft forever 10: veth0c9a149b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:d4:b9:fa:ab:9a brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::1cd4:b9ff:fefa:ab9a/64 scope link valid_lft forever preferred_lft forever 13: veth252fe939@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6a:9a:f7:d6:4b:67 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::689a:f7ff:fed6:4b67/64 scope link valid_lft forever preferred_lft forever 14: veth9aec2461@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether c2:29:c5:03:f0:2c brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::c029:c5ff:fe03:f02c/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-6301) 10/29/26 _x86_64_ (8 CPU) 17:06:00 LINUX RESTART (8 CPU) 17:07:02 tps rtps wtps bread/s bwrtn/s 17:08:01 480.46 84.80 395.66 3754.89 168230.47 17:09:01 107.26 0.03 107.23 0.27 64928.22 17:10:01 162.44 3.42 159.02 466.99 102173.10 17:11:01 100.03 20.78 79.25 820.80 11369.04 Average: 211.42 27.02 184.41 1250.25 86333.14 17:07:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:08:01 26119448 30806564 6819772 20.70 121588 4669064 3512408 10.66 2526372 3695284 571316 17:09:01 24605220 30672396 8334000 25.30 126380 5991332 3638624 11.05 3373872 4305136 932776 17:10:01 25600768 30993932 7338452 22.28 131824 5412600 3231440 9.81 2328348 4459080 632 17:11:01 25004708 30861748 7934512 24.09 142348 5834480 3433464 10.42 2579324 4767004 161920 Average: 25332536 30833660 7606684 23.09 130535 5476869 3453984 10.49 2701979 4306626 416661 17:07:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 17:08:01 veth0c9a149b 5.47 6.88 1.73 2.16 0.00 0.00 0.00 0.00 17:08:01 vethcbca733 92.22 136.08 9.38 1517.34 0.00 0.00 0.00 0.12 17:08:01 ens3 543.35 344.43 10964.31 34.48 0.00 0.00 0.00 0.00 17:08:01 veth252fe939 0.14 0.47 0.01 0.04 0.00 0.00 0.00 0.00 17:09:01 veth0c9a149b 6.86 7.88 1.99 0.93 0.00 0.00 0.00 0.00 17:09:01 vethcbca733 0.53 0.58 0.07 0.45 0.00 0.00 0.00 0.00 17:09:01 ens3 1.17 1.15 0.55 0.32 0.00 0.00 0.00 0.00 17:09:01 veth252fe939 0.03 0.12 0.00 0.01 0.00 0.00 0.00 0.00 17:10:01 veth0c9a149b 7.32 8.43 2.15 0.99 0.00 0.00 0.00 0.00 17:10:01 ens3 261.61 135.61 5389.91 12.43 0.00 0.00 0.00 0.00 17:10:01 veth252fe939 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 17:10:01 veth34d5fd8b 8.10 9.45 0.77 1.23 0.00 0.00 0.00 0.00 17:11:01 veth0c9a149b 7.35 8.58 2.16 1.19 0.00 0.00 0.00 0.00 17:11:01 ens3 128.08 86.05 1666.40 12.51 0.00 0.00 0.00 0.00 17:11:01 veth252fe939 0.00 0.10 0.00 0.01 0.00 0.00 0.00 0.00 17:11:01 veth34d5fd8b 3.07 3.57 0.28 0.41 0.00 0.00 0.00 0.00 Average: veth0c9a149b 6.76 7.95 2.01 1.31 0.00 0.00 0.00 0.00 Average: ens3 232.24 140.96 4478.08 14.85 0.00 0.00 0.00 0.00 Average: veth252fe939 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 Average: veth34d5fd8b 2.80 3.27 0.27 0.41 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6301) 10/29/26 _x86_64_ (8 CPU) 17:06:00 LINUX RESTART (8 CPU) 17:07:02 CPU %user %nice %system %iowait %steal %idle 17:08:01 all 27.15 0.47 7.14 4.56 0.05 60.63 17:08:01 0 27.69 1.72 6.80 5.90 0.05 57.84 17:08:01 1 26.51 0.27 7.80 9.07 0.07 56.27 17:08:01 2 28.12 0.00 7.15 1.87 0.05 62.81 17:08:01 3 26.95 0.00 7.11 4.97 0.03 60.93 17:08:01 4 26.85 0.00 7.28 3.87 0.05 61.94 17:08:01 5 27.44 0.00 6.46 2.30 0.03 63.76 17:08:01 6 27.76 0.03 7.30 5.21 0.03 59.66 17:08:01 7 25.88 1.73 7.31 3.28 0.05 61.75 17:09:01 all 56.15 0.00 7.47 0.50 0.04 35.84 17:09:01 0 52.73 0.00 7.46 1.36 0.03 38.42 17:09:01 1 58.02 0.00 7.00 0.00 0.03 34.95 17:09:01 2 62.25 0.00 8.12 0.02 0.05 29.56 17:09:01 3 54.00 0.00 7.60 0.03 0.05 38.32 17:09:01 4 54.14 0.00 7.49 1.36 0.03 36.98 17:09:01 5 56.08 0.00 7.33 0.98 0.05 35.56 17:09:01 6 57.25 0.00 7.64 0.00 0.05 35.06 17:09:01 7 54.79 0.00 7.09 0.22 0.05 37.84 17:10:01 all 19.82 0.40 5.52 2.13 0.05 72.07 17:10:01 0 22.52 1.60 4.98 3.87 0.05 66.99 17:10:01 1 19.97 0.00 5.33 0.59 0.05 74.06 17:10:01 2 17.93 0.00 6.19 5.28 0.05 70.56 17:10:01 3 22.47 1.64 5.95 0.93 0.05 68.96 17:10:01 4 18.75 0.00 5.73 0.27 0.03 75.22 17:10:01 5 19.94 0.00 5.27 3.21 0.05 71.53 17:10:01 6 18.84 0.00 5.28 1.72 0.05 74.11 17:10:01 7 18.16 0.00 5.41 1.20 0.03 75.20 17:11:01 all 9.05 0.00 1.47 0.64 0.04 88.79 17:11:01 0 9.03 0.00 1.65 0.97 0.03 88.31 17:11:01 1 7.20 0.00 1.84 1.51 0.07 89.38 17:11:01 2 2.25 0.00 1.21 0.60 0.05 95.89 17:11:01 3 2.00 0.00 0.82 0.12 0.03 97.03 17:11:01 4 29.92 0.00 2.37 0.63 0.05 67.02 17:11:01 5 4.99 0.00 1.29 0.60 0.05 93.07 17:11:01 6 9.28 0.00 1.44 0.35 0.07 88.87 17:11:01 7 7.66 0.00 1.23 0.29 0.02 90.81 Average: all 28.04 0.22 5.39 1.94 0.05 64.36 Average: 0 27.98 0.82 5.21 3.01 0.04 62.94 Average: 1 27.91 0.07 5.48 2.76 0.05 63.74 Average: 2 27.65 0.00 5.66 1.94 0.05 64.70 Average: 3 26.34 0.41 5.36 1.50 0.04 66.35 Average: 4 32.45 0.00 5.71 1.52 0.04 60.28 Average: 5 27.09 0.00 5.08 1.77 0.05 66.02 Average: 6 28.26 0.01 5.40 1.80 0.05 64.48 Average: 7 26.63 0.43 5.25 1.24 0.04 66.42