---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4693 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 1.7M 3.2G 1% /run /dev/vda1 155G 14G 142G 9% / 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/a7c56bdb9678d816ca57e7f41bde211115c4494587fc1e00cc1c166269ae85c3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c46032c221fc557fa8fcafd3df4253fae591b31decd2e96e598643f718197475/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6f89aa8ed7d64ddfb7379f1bbb1c70f5170f06a4c64a9b44445d13b1d55a74e3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f59ad9a21766d58e156b431799840a038103f9ada5c193963654ff89f77247b2/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/91f5988e88e423074d2c7acdb8b677bed4fd29203f3b807bd5108cbbd6dda57d/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1532 24556 1 6077 30178 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:5f:d7:aa brd ff:ff:ff:ff:ff:ff inet 10.30.107.169/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86053sec preferred_lft 86053sec inet6 fe80::f816:3eff:fe5f:d7aa/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:65:db:12:8f 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::42:65ff:fedb:128f/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether be:d3:69:d7:53:c2 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::bcd3:69ff:fed7:53c2/64 scope link valid_lft forever preferred_lft forever 7: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 76:6e:46:5f:0b:07 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::746e:46ff:fe5f:b07/64 scope link valid_lft forever preferred_lft forever 8: veth1897fcce@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ea:3a:12:fd:75:c2 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::e83a:12ff:fefd:75c2/64 scope link valid_lft forever preferred_lft forever 10: vethe9dcd432@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:03:d3:25:b5:b4 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::3003:d3ff:fe25:b5b4/64 scope link valid_lft forever preferred_lft forever 11: vethfe7cb3cc@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ae:69:2c:6f:1d:b1 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::ac69:2cff:fe6f:1db1/64 scope link valid_lft forever preferred_lft forever 13: veth98896a59@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether be:2c:ca:4e:ac:7f brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::bc2c:caff:fe4e:ac7f/64 scope link valid_lft forever preferred_lft forever 14: veth66e6bfdc@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 0e:6c:16:d9:34:0e brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::c6c:16ff:fed9:340e/64 scope link valid_lft forever preferred_lft forever 19: br-eb52416b45da: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:61:ae:54:61 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-eb52416b45da valid_lft forever preferred_lft forever inet6 fe80::42:61ff:feae:5461/64 scope link valid_lft forever preferred_lft forever 21: vethaf48a2f@if20: mtu 1500 qdisc noqueue master br-eb52416b45da state UP group default link/ether 1e:0a:12:6b:9f:0b brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::1c0a:12ff:fe6b:9f0b/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-4693) 10/23/25 _x86_64_ (8 CPU) 09:48:22 LINUX RESTART (8 CPU) 09:49:01 tps rtps wtps bread/s bwrtn/s 09:50:01 583.31 83.09 500.22 3748.62 143212.93 09:51:01 231.41 1.37 230.04 13.86 96310.61 09:52:01 155.46 3.97 151.49 565.37 98176.44 09:53:01 90.75 19.88 70.87 696.15 4164.11 09:54:01 159.97 1.23 158.74 97.85 16557.64 Average: 244.19 21.91 222.28 1024.46 71686.73 09:49:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:50:01 27680124 31158208 5259096 15.97 90572 3627164 2696004 8.18 1807728 3004748 437968 09:51:01 26069716 31023260 6869504 20.86 132480 4918044 2806612 8.52 2471272 3790868 428496 09:52:01 25620176 30971128 7319044 22.22 137792 5383416 3344404 10.15 2359624 4426928 660 09:53:01 25438600 30889564 7500620 22.77 144752 5465464 3191548 9.69 2585440 4369300 8744 09:54:01 25111548 30864748 7827672 23.76 156020 5725812 3191080 9.69 2627556 4620292 148 Average: 25984033 30981382 6955187 21.12 132323 5023980 3045930 9.25 2370324 4042427 175203 09:49:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:50:01 veth91c867da 0.10 0.28 0.01 0.02 0.00 0.00 0.00 0.00 09:50:01 vethe9dcd432 0.43 0.97 0.09 0.17 0.00 0.00 0.00 0.00 09:50:01 cni0 2.47 1.80 0.43 1.04 0.00 0.00 0.48 0.00 09:50:01 vethfe7cb3cc 0.87 1.13 0.11 0.36 0.00 0.00 0.00 0.00 09:51:01 veth98896a59 0.15 0.53 0.01 0.04 0.00 0.00 0.00 0.00 09:51:01 veth66e6bfdc 3.05 3.35 0.41 1.79 0.00 0.00 0.00 0.00 09:51:01 vethe9dcd432 0.17 0.60 0.01 0.05 0.00 0.00 0.00 0.00 09:51:01 cni0 43.56 42.51 36.85 108.02 0.00 0.00 0.43 0.00 09:52:01 veth98896a59 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 09:52:01 veth66e6bfdc 1.37 1.53 0.11 0.19 0.00 0.00 0.00 0.00 09:52:01 vethe9dcd432 0.10 0.13 0.01 0.01 0.00 0.00 0.00 0.00 09:52:01 cni0 11.78 13.30 3.02 2.19 0.00 0.00 0.07 0.00 09:53:01 veth98896a59 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 09:53:01 veth66e6bfdc 1.38 1.50 0.11 0.18 0.00 0.00 0.00 0.00 09:53:01 vethe9dcd432 0.08 0.13 0.01 0.01 0.00 0.00 0.00 0.00 09:53:01 cni0 11.58 13.03 3.01 2.17 0.00 0.00 0.07 0.00 09:54:01 veth98896a59 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 09:54:01 veth66e6bfdc 1.35 1.43 0.11 0.18 0.00 0.00 0.00 0.00 09:54:01 vethe9dcd432 0.10 0.10 0.01 0.01 0.00 0.00 0.00 0.00 09:54:01 cni0 11.90 12.85 3.03 2.15 0.00 0.00 0.02 0.00 Average: veth98896a59 0.04 0.14 0.00 0.01 0.00 0.00 0.00 0.00 Average: veth66e6bfdc 1.43 1.56 0.15 0.47 0.00 0.00 0.00 0.00 Average: vethe9dcd432 0.18 0.39 0.02 0.05 0.00 0.00 0.00 0.00 Average: cni0 16.26 16.70 9.27 23.11 0.00 0.00 0.21 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4693) 10/23/25 _x86_64_ (8 CPU) 09:48:22 LINUX RESTART (8 CPU) 09:49:01 CPU %user %nice %system %iowait %steal %idle 09:50:01 all 11.93 0.78 4.85 3.63 0.08 78.73 09:50:01 0 9.83 0.00 5.15 4.17 0.07 80.77 09:50:01 1 10.61 0.00 4.60 3.33 0.08 81.38 09:50:01 2 10.15 3.91 5.04 3.12 0.08 77.70 09:50:01 3 12.67 2.32 4.13 1.63 0.07 79.20 09:50:01 4 12.43 0.00 4.31 9.64 0.08 73.54 09:50:01 5 17.86 0.00 5.84 1.36 0.08 74.85 09:50:01 6 12.24 0.00 4.93 2.89 0.07 79.88 09:50:01 7 9.65 0.00 4.84 2.94 0.08 82.49 09:51:01 all 38.52 0.00 5.85 2.46 0.11 53.06 09:51:01 0 39.96 0.00 5.93 2.34 0.10 51.67 09:51:01 1 40.20 0.00 5.90 2.70 0.08 51.12 09:51:01 2 41.25 0.00 6.00 1.84 0.12 50.79 09:51:01 3 38.68 0.00 5.51 2.02 0.10 53.69 09:51:01 4 37.94 0.00 5.76 4.31 0.12 51.86 09:51:01 5 37.26 0.00 6.12 2.67 0.10 53.84 09:51:01 6 36.33 0.00 5.54 2.51 0.12 55.50 09:51:01 7 36.51 0.00 6.05 1.28 0.10 56.06 09:52:01 all 32.23 0.22 6.14 1.63 0.10 59.68 09:52:01 0 30.92 0.02 6.15 2.65 0.12 60.15 09:52:01 1 30.96 0.00 6.44 4.65 0.10 57.84 09:52:01 2 34.49 0.02 5.22 0.44 0.10 59.73 09:52:01 3 30.81 0.00 6.89 0.64 0.10 61.56 09:52:01 4 33.45 0.00 6.17 0.25 0.08 60.05 09:52:01 5 33.60 0.00 6.33 3.50 0.10 56.46 09:52:01 6 30.24 0.00 5.39 0.07 0.08 64.22 09:52:01 7 33.36 1.73 6.55 0.85 0.10 57.42 09:53:01 all 4.91 0.00 1.22 0.30 0.05 93.52 09:53:01 0 14.63 0.00 1.56 0.39 0.05 83.38 09:53:01 1 3.77 0.00 1.20 0.15 0.03 94.85 09:53:01 2 3.35 0.00 1.26 0.57 0.07 94.76 09:53:01 3 6.70 0.00 1.12 0.22 0.07 91.90 09:53:01 4 4.12 0.00 1.20 0.13 0.05 94.50 09:53:01 5 2.28 0.00 1.17 0.05 0.07 96.43 09:53:01 6 1.60 0.00 0.84 0.17 0.05 97.34 09:53:01 7 2.78 0.00 1.36 0.77 0.05 95.05 09:54:01 all 11.98 0.00 1.44 0.74 0.07 85.77 09:54:01 0 27.87 0.00 2.25 2.27 0.08 67.52 09:54:01 1 7.95 0.00 1.32 0.08 0.08 90.56 09:54:01 2 3.10 0.00 1.27 0.55 0.07 95.01 09:54:01 3 11.88 0.00 1.76 1.04 0.07 85.25 09:54:01 4 16.04 0.00 1.37 0.07 0.07 82.46 09:54:01 5 16.89 0.00 1.52 1.77 0.08 79.74 09:54:01 6 5.75 0.00 0.87 0.08 0.05 93.24 09:54:01 7 6.33 0.00 1.15 0.07 0.07 92.39 Average: all 19.88 0.20 3.89 1.75 0.08 74.20 Average: 0 24.65 0.00 4.20 2.36 0.08 68.70 Average: 1 18.64 0.00 3.88 2.17 0.08 75.22 Average: 2 18.44 0.78 3.75 1.30 0.09 75.64 Average: 3 20.11 0.46 3.87 1.11 0.08 74.36 Average: 4 20.76 0.00 3.75 2.87 0.08 72.53 Average: 5 21.54 0.00 4.19 1.87 0.09 72.31 Average: 6 17.22 0.00 3.51 1.14 0.07 78.05 Average: 7 17.67 0.34 3.98 1.18 0.08 76.75