---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4713 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 2.1M 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 4.0K 3.2G 1% /run/user/1001 shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/783dbd0c3df3990c920ad93e3c78e087c2d7e533dd5277f587df8a0ad0340799/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/5117944342767c3fa411c39c689533c4dd1f2e32c5b8aa12c644f474d5071862/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/0ffbac4a593d40af499b2188ba9aac5157d3eba8eb8a0e517565579b21d1132f/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d33e80e6b292b592a83c6f9594e69893ee2eb2dc7c79a9bb52f6f9c647e4f288/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c6478830bd2641a79e069384089369c04dd1ce4df386696b019338a7b43bd656/shm /dev/loop0 51M 51M 0 100% /snap/snapd/25577 /dev/loop1 67M 67M 0 100% /snap/core24/1196 /dev/loop2 20M 20M 0 100% /snap/helm/476 ---> free -m: total used free shared buff/cache available Mem: 32167 1606 24021 2 6539 30104 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:26:87:c8 brd ff:ff:ff:ff:ff:ff inet 10.30.106.144/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86018sec preferred_lft 86018sec inet6 fe80::f816:3eff:fe26:87c8/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:54:fe:d5:c7 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::42:54ff:fefe:d5c7/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 26:40:c5:55:8a:c5 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::2440:c5ff:fe55:8ac5/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 62:fe:e3:94:c9:73 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::60fe:e3ff:fe94:c973/64 scope link valid_lft forever preferred_lft forever 6: veth059ba574@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether d2:25:4e:d3:9b:f1 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::d025:4eff:fed3:9bf1/64 scope link valid_lft forever preferred_lft forever 7: vetha241ecb2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ae:2b:d0:c6:9d:fe brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::ac2b:d0ff:fec6:9dfe/64 scope link valid_lft forever preferred_lft forever 8: vetheb383ca1@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 7e:70:04:3a:3d:78 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::7c70:4ff:fe3a:3d78/64 scope link valid_lft forever preferred_lft forever 13: vethdbf72aa6@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether de:e9:ac:85:34:b6 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::dce9:acff:fe85:34b6/64 scope link valid_lft forever preferred_lft forever 14: veth6715729e@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:2a:90:8e:22:bc brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::1c2a:90ff:fe8e:22bc/64 scope link valid_lft forever preferred_lft forever 19: br-dbeba966405b: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:45:f2:18:a8 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-dbeba966405b valid_lft forever preferred_lft forever inet6 fe80::42:45ff:fef2:18a8/64 scope link valid_lft forever preferred_lft forever 21: vethd4900cb@if20: mtu 1500 qdisc noqueue master br-dbeba966405b state UP group default link/ether 06:d8:8c:37:52:54 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::4d8:8cff:fe37:5254/64 scope link valid_lft forever preferred_lft forever 23: veth20e9704@if22: mtu 1500 qdisc noqueue master br-dbeba966405b state UP group default link/ether ee:6c:2f:15:97:03 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::ec6c:2fff:fe15:9703/64 scope link valid_lft forever preferred_lft forever 25: veth8eaf26e@if24: mtu 1500 qdisc noqueue master br-dbeba966405b state UP group default link/ether de:aa:50:66:9b:a8 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::dcaa:50ff:fe66:9ba8/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4713) 10/23/25 _x86_64_ (8 CPU) 10:19:45 LINUX RESTART (8 CPU) 10:20:01 tps rtps wtps bread/s bwrtn/s 10:21:02 346.58 94.62 251.96 6178.84 91773.24 10:22:01 420.81 42.79 378.02 2247.62 125363.57 10:23:01 174.79 0.38 174.41 3.07 89100.57 10:24:01 123.43 3.27 120.16 444.73 69845.96 10:25:01 120.90 22.38 98.52 842.79 37581.74 10:26:01 111.85 1.05 110.80 75.85 10577.30 Average: 215.82 27.37 188.45 1630.39 70555.36 10:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:21:02 29866676 31737680 3072544 9.33 45552 2139244 1432168 4.35 1061128 1722904 613504 10:22:01 27150996 31029076 5788224 17.57 112916 3928384 2914404 8.85 2051532 3213896 63528 10:23:01 25948120 31010400 6991100 21.22 130376 5009048 3664680 11.13 2520468 3858164 405288 10:24:01 26144524 31072356 6794696 20.63 133208 4990040 2661316 8.08 2220644 4071992 160 10:25:01 24890068 30813240 8049152 24.44 184436 5875980 4417164 13.41 2729648 4733724 56176 10:26:01 24542324 30767896 8396896 25.49 194424 6135396 4479280 13.60 2793220 4984312 123296 Average: 26423785 31071775 6515435 19.78 133485 4679682 3261502 9.90 2229440 3764165 210325 10:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 10:21:02 ens3 459.51 358.61 2579.65 79.67 0.00 0.00 0.00 0.00 10:21:02 lo 2.77 2.77 0.29 0.29 0.00 0.00 0.00 0.00 10:21:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:22:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:22:01 vetha241ecb2 5.34 6.80 2.17 2.21 0.00 0.00 0.00 0.00 10:22:01 vetheb383ca1 0.56 1.15 0.10 0.18 0.00 0.00 0.00 0.00 10:22:01 cni0 33.86 32.16 26.91 98.82 0.00 0.00 0.64 0.00 10:23:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:23:01 vethdbf72aa6 0.15 0.43 0.01 0.03 0.00 0.00 0.00 0.00 10:23:01 vetha241ecb2 6.86 8.50 2.57 2.18 0.00 0.00 0.00 0.00 10:23:01 veth6715729e 4.52 4.12 0.79 2.04 0.00 0.00 0.00 0.00 10:24:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:24:01 vethdbf72aa6 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 10:24:01 vetha241ecb2 7.22 8.62 2.78 1.72 0.00 0.00 0.00 0.00 10:24:01 veth6715729e 1.37 1.57 0.11 0.19 0.00 0.00 0.00 0.00 10:25:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:25:01 vethdbf72aa6 0.02 0.05 0.00 0.00 0.00 0.00 0.00 0.00 10:25:01 vetha241ecb2 7.28 8.32 2.78 1.70 0.00 0.00 0.00 0.00 10:25:01 veth6715729e 1.37 1.48 0.11 0.18 0.00 0.00 0.00 0.00 10:26:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:26:01 vethdbf72aa6 0.00 0.03 0.00 0.00 0.00 0.00 0.00 0.00 10:26:01 vetha241ecb2 7.15 8.50 2.77 1.71 0.00 0.00 0.00 0.00 10:26:01 veth6715729e 1.38 1.47 0.11 0.18 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: vethdbf72aa6 0.03 0.10 0.00 0.01 0.00 0.00 0.00 0.00 Average: vetha241ecb2 5.64 6.79 2.18 1.59 0.00 0.00 0.00 0.00 Average: veth6715729e 1.44 1.44 0.19 0.43 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4713) 10/23/25 _x86_64_ (8 CPU) 10:19:45 LINUX RESTART (8 CPU) 10:20:01 CPU %user %nice %system %iowait %steal %idle 10:21:02 all 6.58 0.67 1.74 11.18 0.05 79.79 10:21:02 0 5.51 0.00 1.77 1.89 0.05 90.78 10:21:02 1 8.22 0.00 1.45 2.21 0.03 88.08 10:21:02 2 2.51 3.44 0.84 46.54 0.05 46.63 10:21:02 3 4.65 0.02 2.03 6.98 0.05 86.28 10:21:02 4 5.14 0.00 1.39 0.93 0.07 92.47 10:21:02 5 13.82 0.00 3.06 0.87 0.05 82.19 10:21:02 6 5.12 0.12 1.27 4.72 0.05 88.71 10:21:02 7 7.64 1.71 2.06 25.31 0.07 63.20 10:22:01 all 10.76 0.00 3.98 16.92 0.09 68.24 10:22:01 0 9.98 0.00 3.83 19.15 0.09 66.95 10:22:01 1 11.62 0.00 3.69 6.42 0.10 78.18 10:22:01 2 10.65 0.00 3.82 12.21 0.09 73.24 10:22:01 3 10.01 0.00 4.14 20.60 0.09 65.16 10:22:01 4 9.84 0.00 4.53 14.76 0.10 70.77 10:22:01 5 12.50 0.00 3.95 25.37 0.10 58.08 10:22:01 6 10.78 0.00 4.28 32.94 0.10 51.90 10:22:01 7 10.69 0.00 3.63 4.04 0.09 81.56 10:23:01 all 38.96 0.00 5.54 5.74 0.12 49.64 10:23:01 0 37.10 0.00 5.65 4.35 0.10 52.80 10:23:01 1 37.21 0.00 5.66 3.53 0.10 53.50 10:23:01 2 36.90 0.00 4.98 13.16 0.14 44.82 10:23:01 3 40.25 0.00 5.79 8.84 0.12 45.00 10:23:01 4 45.44 0.00 5.37 2.03 0.17 46.98 10:23:01 5 39.86 0.00 5.90 3.76 0.10 50.38 10:23:01 6 38.29 0.00 5.11 2.78 0.12 53.70 10:23:01 7 36.68 0.00 5.81 7.44 0.12 49.96 10:24:01 all 23.69 0.23 4.38 5.43 0.10 66.17 10:24:01 0 28.07 0.00 4.40 14.61 0.08 52.84 10:24:01 1 21.47 0.00 4.70 10.72 0.10 63.02 10:24:01 2 22.86 0.67 4.25 2.39 0.10 69.72 10:24:01 3 24.06 0.00 4.32 1.50 0.15 69.96 10:24:01 4 24.58 1.14 4.17 1.88 0.12 68.11 10:24:01 5 22.17 0.02 4.30 10.20 0.10 63.21 10:24:01 6 22.90 0.00 4.19 2.17 0.08 70.65 10:24:01 7 23.38 0.00 4.73 0.02 0.08 71.79 10:25:01 all 8.71 0.00 3.18 2.59 0.09 85.44 10:25:01 0 9.78 0.00 3.75 11.89 0.12 74.45 10:25:01 1 12.12 0.00 3.22 2.30 0.08 82.27 10:25:01 2 5.39 0.00 4.18 2.57 0.10 87.76 10:25:01 3 6.99 0.00 2.30 1.06 0.08 89.57 10:25:01 4 8.50 0.00 3.26 0.50 0.08 87.65 10:25:01 5 6.71 0.00 2.43 1.96 0.08 88.82 10:25:01 6 12.52 0.00 3.27 0.30 0.07 83.84 10:25:01 7 7.65 0.00 2.98 0.07 0.08 89.22 10:26:01 all 11.83 0.00 1.14 0.53 0.07 86.44 10:26:01 0 17.99 0.00 1.47 0.33 0.08 80.12 10:26:01 1 9.09 0.00 0.97 0.97 0.10 88.86 10:26:01 2 21.39 0.00 1.29 1.20 0.08 76.04 10:26:01 3 9.59 0.00 1.06 0.22 0.05 89.09 10:26:01 4 17.61 0.00 1.59 0.38 0.08 80.33 10:26:01 5 6.17 0.00 0.65 0.62 0.03 92.52 10:26:01 6 9.69 0.00 1.08 0.23 0.08 88.92 10:26:01 7 3.05 0.00 0.99 0.27 0.07 95.63 Average: all 16.72 0.15 3.32 7.03 0.09 72.69 Average: 0 18.05 0.00 3.47 8.66 0.09 69.73 Average: 1 16.60 0.00 3.28 4.34 0.09 75.69 Average: 2 16.60 0.69 3.22 13.04 0.09 66.36 Average: 3 15.89 0.00 3.26 6.49 0.09 74.26 Average: 4 18.49 0.19 3.37 3.38 0.10 74.46 Average: 5 16.82 0.00 3.37 7.07 0.08 72.65 Average: 6 16.51 0.02 3.19 7.09 0.08 73.11 Average: 7 14.81 0.29 3.36 6.19 0.08 75.27