---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-46724 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 1.8M 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/aee5541c451a04160a411a8f40ec011bd98a92392ab25b6b1284c950e76a01c2/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/85b6d00e104e0af766c67c28c03ba091a846cc865ad4f279570a20410da82ec8/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/88093727d34fb5598af9c0a57b2b4fe71203ed655d8ca4ffa2777e53dd96dabc/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/28f74495a8fd3597d5c12791a8c4bd2e1fc8c3200eb7e89a09fe78ad9c7d10c0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/46dd6e8972a96ca83985ed7634e5a0b5f259ac8e3df2cedbb20c6a1edfa13d02/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1607 24210 1 6349 30103 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:14:dd:34 brd ff:ff:ff:ff:ff:ff inet 10.30.106.116/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86052sec preferred_lft 86052sec inet6 fe80::f816:3eff:fe14:dd34/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:d4:c3:0f:5a 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:d4ff:fec3:f5a/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether be:f8:75:44:91:54 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::bcf8:75ff:fe44:9154/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 86:25:05:85:d9:71 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::8425:5ff:fe85:d971/64 scope link valid_lft forever preferred_lft forever 6: vethe44a53eb@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 76:d7:f8:9c:d7:bc brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::74d7:f8ff:fe9c:d7bc/64 scope link valid_lft forever preferred_lft forever 7: vethe012a50b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether d6:c4:64:a5:20:6c brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::d4c4:64ff:fea5:206c/64 scope link valid_lft forever preferred_lft forever 8: vethd4237705@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ce:07:f1:3d:6a:7d brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::cc07:f1ff:fe3d:6a7d/64 scope link valid_lft forever preferred_lft forever 13: veth36758614@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether be:cc:4b:31:a0:75 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::bccc:4bff:fe31:a075/64 scope link valid_lft forever preferred_lft forever 14: veth92422133@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ee:85:92:a2:7a:ff brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::ec85:92ff:fea2:7aff/64 scope link valid_lft forever preferred_lft forever 19: br-bd0390b9facb: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:60:7e:ad:b7 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-bd0390b9facb valid_lft forever preferred_lft forever inet6 fe80::42:60ff:fe7e:adb7/64 scope link valid_lft forever preferred_lft forever 23: vethf245ab2@if22: mtu 1500 qdisc noqueue master br-bd0390b9facb state UP group default link/ether de:f0:2d:37:35:18 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::dcf0:2dff:fe37:3518/64 scope link valid_lft forever preferred_lft forever 25: vethde15f89@if24: mtu 1500 qdisc noqueue master br-bd0390b9facb state UP group default link/ether b2:16:4c:f9:8e:0a brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::b016:4cff:fef9:8e0a/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-46724) 09/18/25 _x86_64_ (8 CPU) 06:04:00 LINUX RESTART (8 CPU) 06:05:01 tps rtps wtps bread/s bwrtn/s 06:06:01 518.93 42.26 476.67 2234.83 151410.10 06:07:01 47.75 0.02 47.73 0.13 44185.00 06:08:01 167.69 3.88 163.81 537.64 97276.59 06:09:01 77.50 20.50 57.01 780.40 5522.41 Average: 202.96 16.66 186.30 888.21 74597.26 06:05:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:06:01 26367876 30827732 6571344 19.95 125692 4416880 3694256 11.22 2385344 3606404 159580 06:07:01 25200512 30702824 7738708 23.49 130856 5427824 3795036 11.52 3036744 4071872 728264 06:08:01 25314488 30942352 7624732 23.15 137288 5650168 3871996 11.75 2512108 4562084 1164 06:09:01 24873052 30777580 8066168 24.49 151768 5883176 4000828 12.15 2794476 4690988 143644 Average: 25438982 30812622 7500238 22.77 136401 5344512 3840529 11.66 2682168 4232837 258163 06:05:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:06:01 veth36758614 0.12 0.32 0.01 0.02 0.00 0.00 0.00 0.00 06:06:01 ens3 904.87 481.54 9704.17 43.18 0.00 0.00 0.00 0.00 06:06:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:06:01 vethd4237705 6.30 7.95 2.44 2.85 0.00 0.00 0.00 0.00 06:07:01 veth36758614 0.05 0.15 0.00 0.01 0.00 0.00 0.00 0.00 06:07:01 ens3 1.35 1.57 0.75 0.35 0.00 0.00 0.00 0.00 06:07:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:07:01 vethd4237705 6.75 8.26 2.62 1.72 0.00 0.00 0.00 0.00 06:08:01 veth36758614 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 06:08:01 ens3 191.05 115.03 5889.96 10.44 0.00 0.00 0.00 0.00 06:08:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:08:01 vethde15f89 0.00 0.12 0.00 0.01 0.00 0.00 0.00 0.00 06:09:01 veth36758614 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 06:09:01 ens3 51.97 39.83 874.24 9.28 0.00 0.00 0.00 0.00 06:09:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:09:01 vethde15f89 0.15 0.22 0.01 0.01 0.00 0.00 0.00 0.00 Average: veth36758614 0.05 0.14 0.00 0.01 0.00 0.00 0.00 0.00 Average: ens3 287.30 159.48 4117.11 15.81 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: vethde15f89 0.04 0.08 0.00 0.01 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-46724) 09/18/25 _x86_64_ (8 CPU) 06:04:00 LINUX RESTART (8 CPU) 06:05:01 CPU %user %nice %system %iowait %steal %idle 06:06:01 all 16.18 0.00 5.55 12.49 0.09 65.69 06:06:01 0 15.69 0.00 5.04 8.15 0.10 71.02 06:06:01 1 16.22 0.00 5.32 8.03 0.08 70.35 06:06:01 2 15.82 0.00 5.62 12.94 0.08 65.54 06:06:01 3 16.31 0.00 5.96 19.37 0.10 58.26 06:06:01 4 16.13 0.00 5.44 6.35 0.08 72.00 06:06:01 5 16.99 0.00 5.78 11.73 0.08 65.42 06:06:01 6 15.78 0.00 6.04 23.12 0.08 54.98 06:06:01 7 16.54 0.00 5.19 10.27 0.07 67.93 06:07:01 all 53.18 0.00 6.28 0.47 0.10 39.97 06:07:01 0 52.75 0.00 6.38 0.77 0.10 39.99 06:07:01 1 55.57 0.00 6.28 0.52 0.10 37.53 06:07:01 2 55.09 0.00 6.18 0.64 0.10 37.99 06:07:01 3 55.17 0.00 6.20 0.02 0.10 38.51 06:07:01 4 55.39 0.00 6.87 0.47 0.10 37.17 06:07:01 5 50.51 0.00 6.39 0.19 0.10 42.81 06:07:01 6 50.11 0.00 6.27 0.00 0.08 43.53 06:07:01 7 50.79 0.00 5.66 1.22 0.10 42.23 06:08:01 all 10.46 0.21 3.73 2.42 0.08 83.10 06:08:01 0 9.24 0.00 3.91 3.56 0.07 83.22 06:08:01 1 14.41 0.00 2.85 0.07 0.08 82.59 06:08:01 2 11.85 0.00 3.98 3.89 0.07 80.22 06:08:01 3 11.86 0.00 3.73 0.49 0.07 83.85 06:08:01 4 9.00 0.02 4.22 7.16 0.07 79.53 06:08:01 5 8.25 0.00 3.42 0.30 0.08 87.94 06:08:01 6 9.43 0.00 3.33 0.10 0.08 87.05 06:08:01 7 9.62 1.70 4.41 3.78 0.07 80.42 06:09:01 all 7.92 0.00 1.02 0.40 0.07 90.60 06:09:01 0 7.02 0.00 0.90 0.27 0.08 91.73 06:09:01 1 4.90 0.00 1.10 1.81 0.08 92.10 06:09:01 2 9.40 0.00 0.88 0.13 0.05 89.53 06:09:01 3 15.33 0.00 1.63 0.45 0.08 82.50 06:09:01 4 6.30 0.00 1.03 0.15 0.07 92.45 06:09:01 5 3.71 0.00 0.67 0.08 0.07 95.47 06:09:01 6 6.94 0.00 1.20 0.08 0.07 91.70 06:09:01 7 9.70 0.00 0.75 0.22 0.07 89.26 Average: all 21.90 0.05 4.14 3.94 0.08 69.89 Average: 0 21.13 0.00 4.05 3.18 0.09 71.54 Average: 1 22.76 0.00 3.88 2.60 0.09 70.67 Average: 2 23.01 0.00 4.16 4.39 0.08 68.37 Average: 3 24.64 0.00 4.37 5.05 0.09 65.84 Average: 4 21.67 0.00 4.38 3.52 0.08 70.35 Average: 5 19.85 0.00 4.06 3.09 0.08 72.91 Average: 6 20.54 0.00 4.20 5.80 0.08 69.38 Average: 7 21.63 0.43 3.99 3.86 0.08 70.02