---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4732 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: 2799.996 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/4a77dac443073cbf6a1c431a014d33f1077cbaf823f8d37fb49050ea358f84af/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1a5fde22da6a09cdf922e9f8d4be5ff59c7ae7f81d4a15a085efdba52f18a887/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/5bd3d09b46b147556073b3ca8af1d89125d68cde976803ab2a9993f7716fb0e5/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/2d70a1f81a849068565082497f6b7c91b1a4309c253edaa047375ed440628800/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a7922ff30e40b5cd4a6152bf43a1e9c37d3bdc33cfa8225a0c91e7d91f52ba61/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 1611 24023 2 6532 30098 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:86:bb:4b brd ff:ff:ff:ff:ff:ff inet 10.30.106.252/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86055sec preferred_lft 86055sec inet6 fe80::f816:3eff:fe86:bb4b/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:02:98:c0:4f 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::42:2ff:fe98:c04f/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 22:82:44:8a:5e:09 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::2082:44ff:fe8a:5e09/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 96:ef:74:91:9a:d4 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::94ef:74ff:fe91:9ad4/64 scope link valid_lft forever preferred_lft forever 6: veth5426d5e6@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 72:96:c4:77:39:ca brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::7096:c4ff:fe77:39ca/64 scope link valid_lft forever preferred_lft forever 7: vethb900afec@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 02:4a:8b:66:4c:00 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::4a:8bff:fe66:4c00/64 scope link valid_lft forever preferred_lft forever 10: veth4d932430@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 06:9e:19:46:4a:ef brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::49e:19ff:fe46:4aef/64 scope link valid_lft forever preferred_lft forever 13: vethf5d3a276@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 82:7e:87:5e:f9:8c brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::807e:87ff:fe5e:f98c/64 scope link valid_lft forever preferred_lft forever 14: veth46b5baab@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether aa:42:c9:c5:77:c8 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::a842:c9ff:fec5:77c8/64 scope link valid_lft forever preferred_lft forever 19: br-b79e8fa9b215: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:29:25:d8:0a brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-b79e8fa9b215 valid_lft forever preferred_lft forever inet6 fe80::42:29ff:fe25:d80a/64 scope link valid_lft forever preferred_lft forever 21: vethad7bbd6@if20: mtu 1500 qdisc noqueue master br-b79e8fa9b215 state UP group default link/ether 2a:7a:d7:53:e9:40 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::287a:d7ff:fe53:e940/64 scope link valid_lft forever preferred_lft forever 23: vethb3be62f@if22: mtu 1500 qdisc noqueue master br-b79e8fa9b215 state UP group default link/ether e6:15:a9:79:11:91 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::e415:a9ff:fe79:1191/64 scope link valid_lft forever preferred_lft forever 25: vethd87941a@if24: mtu 1500 qdisc noqueue master br-b79e8fa9b215 state UP group default link/ether 36:a6:84:7d:ea:01 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::34a6:84ff:fe7d:ea01/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4732) 10/23/25 _x86_64_ (8 CPU) 11:10:17 LINUX RESTART (8 CPU) 11:11:01 tps rtps wtps bread/s bwrtn/s 11:12:01 478.67 83.80 394.87 3684.99 138740.34 11:13:01 204.65 0.00 204.65 0.00 96329.76 11:14:01 191.63 3.85 187.79 540.44 113494.95 11:15:01 90.38 22.00 68.39 773.74 9093.55 Average: 241.33 27.41 213.92 1249.74 89414.94 11:11:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:12:01 26330828 30870788 6608392 20.06 127132 4508832 3769660 11.44 2392288 3631196 757752 11:13:01 25353752 30555968 7585468 23.03 130956 5139508 4045256 12.28 3042944 3927380 446408 11:14:01 25477576 31002200 7461644 22.65 138296 5543424 4056852 12.32 2318160 4592380 708 11:15:01 24681696 30759856 8257524 25.07 186736 6017552 4408840 13.38 2803776 4854464 168360 Average: 25460963 30797203 7478257 22.70 145780 5302329 4070152 12.36 2639292 4251355 343307 11:11:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 11:12:01 lo 246.18 246.18 274.48 274.48 0.00 0.00 0.00 0.00 11:12:01 veth6a2768d 104.90 159.54 10.46 1248.83 0.00 0.00 0.00 0.10 11:12:01 veth5426d5e6 0.48 1.52 0.09 0.21 0.00 0.00 0.00 0.00 11:12:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:13:01 lo 13.13 13.13 4.04 4.04 0.00 0.00 0.00 0.00 11:13:01 veth6a2768d 0.58 0.63 0.05 0.67 0.00 0.00 0.00 0.00 11:13:01 veth5426d5e6 0.13 0.22 0.01 0.02 0.00 0.00 0.00 0.00 11:13:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:14:01 vethb3be62f 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:14:01 lo 16.00 16.00 4.39 4.39 0.00 0.00 0.00 0.00 11:14:01 veth9ddce9e 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:14:01 vethad7bbd6 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:15:01 vethb3be62f 0.18 0.42 0.01 0.03 0.00 0.00 0.00 0.00 11:15:01 lo 15.41 15.41 4.62 4.62 0.00 0.00 0.00 0.00 11:15:01 vethd87941a 1.35 1.45 0.25 1.21 0.00 0.00 0.00 0.00 11:15:01 vethad7bbd6 0.67 1.08 1.10 0.22 0.00 0.00 0.00 0.00 Average: vethb3be62f 0.05 0.10 0.00 0.01 0.00 0.00 0.00 0.00 Average: lo 72.68 72.68 71.88 71.88 0.00 0.00 0.00 0.00 Average: vethd87941a 0.34 0.36 0.06 0.30 0.00 0.00 0.00 0.00 Average: vethad7bbd6 0.17 0.27 0.27 0.06 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4732) 10/23/25 _x86_64_ (8 CPU) 11:10:17 LINUX RESTART (8 CPU) 11:11:01 CPU %user %nice %system %iowait %steal %idle 11:12:01 all 23.50 0.31 7.00 4.44 0.15 64.60 11:12:01 0 22.40 0.02 7.53 4.77 0.17 65.12 11:12:01 1 23.95 0.00 6.80 2.52 0.15 66.58 11:12:01 2 25.62 0.00 6.95 2.51 0.17 64.75 11:12:01 3 23.07 0.00 6.62 5.92 0.12 64.27 11:12:01 4 23.29 0.00 7.17 7.44 0.17 61.93 11:12:01 5 22.93 1.73 7.25 3.67 0.13 64.28 11:12:01 6 22.86 0.00 6.75 5.41 0.15 64.82 11:12:01 7 23.91 0.73 6.81 3.29 0.17 65.10 11:13:01 all 42.10 0.00 5.88 2.55 0.16 49.32 11:13:01 0 39.44 0.00 5.34 4.80 0.20 50.22 11:13:01 1 39.31 0.00 4.87 3.62 0.13 52.06 11:13:01 2 42.90 0.00 6.04 0.77 0.15 50.13 11:13:01 3 42.35 0.00 6.61 5.95 0.17 44.92 11:13:01 4 40.57 0.00 5.71 0.79 0.13 52.80 11:13:01 5 40.92 0.00 5.37 2.71 0.13 50.87 11:13:01 6 45.52 0.00 6.63 1.33 0.13 46.39 11:13:01 7 45.77 0.00 6.48 0.39 0.15 47.21 11:14:01 all 23.10 0.31 5.63 2.99 0.13 67.84 11:14:01 0 20.99 0.00 5.63 5.57 0.13 67.68 11:14:01 1 22.57 0.00 5.62 8.06 0.12 63.62 11:14:01 2 24.95 2.18 6.10 0.74 0.14 65.89 11:14:01 3 22.69 0.00 4.84 1.42 0.10 70.96 11:14:01 4 22.04 0.00 5.78 1.45 0.13 70.59 11:14:01 5 24.80 0.02 5.04 0.42 0.15 69.57 11:14:01 6 24.15 0.00 5.62 2.83 0.13 67.26 11:14:01 7 22.64 0.34 6.41 3.37 0.13 67.11 11:15:01 all 8.20 0.00 2.26 0.92 0.16 88.46 11:15:01 0 9.98 0.00 1.96 0.17 0.10 87.79 11:15:01 1 8.77 0.00 2.08 0.87 0.10 88.18 11:15:01 2 6.08 0.00 2.12 0.20 0.22 91.37 11:15:01 3 9.73 0.00 3.11 0.30 0.25 86.61 11:15:01 4 5.75 0.00 2.02 1.22 0.13 90.88 11:15:01 5 3.84 0.00 1.44 0.37 0.13 94.21 11:15:01 6 8.60 0.00 3.21 3.03 0.07 85.09 11:15:01 7 12.91 0.00 2.18 1.23 0.27 83.41 Average: all 24.21 0.16 5.19 2.72 0.15 67.57 Average: 0 23.19 0.00 5.11 3.82 0.15 67.72 Average: 1 23.64 0.00 4.84 3.76 0.13 67.63 Average: 2 24.87 0.54 5.29 1.05 0.17 68.08 Average: 3 24.44 0.00 5.29 3.39 0.16 66.72 Average: 4 22.87 0.00 5.16 2.72 0.14 69.11 Average: 5 23.11 0.44 4.77 1.79 0.14 69.75 Average: 6 25.26 0.00 5.55 3.15 0.12 65.92 Average: 7 26.35 0.27 5.48 2.07 0.18 65.66