---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-46370 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/768e277b7e0265373bc522e338bb2d79a44cb435d3ad50f3d45020f6138f3ec0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/14bd5229336c3da3a44cca32f777e9cfffd97b5f3f59eb2bd660550d8c83010d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/4a8f393901a0ce2369f236369475472a2b0775ee656573b9bb21a33fe67145a8/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a3eb0b2894bf2f1b3bb07983ce21f33ae718b8b4c7644fd03dd8cbc4f9be6b2a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/7f443671af19d0a9c4c6999b0ff214644bed0ee99bced0ebbe8553862bd61320/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1545 24107 1 6513 30164 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:8e:f6:19 brd ff:ff:ff:ff:ff:ff inet 10.30.106.118/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86012sec preferred_lft 86012sec inet6 fe80::f816:3eff:fe8e:f619/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:59:ba:23:1b 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::42:59ff:feba:231b/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 0e:99:4d:31:f4:70 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::c99:4dff:fe31:f470/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 4e:fa:c8:24:d0:ff 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::4cfa:c8ff:fe24:d0ff/64 scope link valid_lft forever preferred_lft forever 8: veth5dd09a88@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 7e:39:00:61:e9:28 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::7c39:ff:fe61:e928/64 scope link valid_lft forever preferred_lft forever 9: vethef9586db@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether fe:05:84:58:0e:41 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::fc05:84ff:fe58:e41/64 scope link valid_lft forever preferred_lft forever 10: vethab3506b0@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether c2:23:af:e9:1e:1d brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::c023:afff:fee9:1e1d/64 scope link valid_lft forever preferred_lft forever 13: veth6562b5e4@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 66:0b:1e:2b:67:45 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::640b:1eff:fe2b:6745/64 scope link valid_lft forever preferred_lft forever 14: veth24e67def@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether d6:56:6c:a3:48:37 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::d456:6cff:fea3:4837/64 scope link valid_lft forever preferred_lft forever 19: br-2ff72a27e7ad: mtu 1500 qdisc noqueue state UP group default link/ether 02:42:d5:ca:3f:74 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global br-2ff72a27e7ad valid_lft forever preferred_lft forever inet6 fe80::42:d5ff:feca:3f74/64 scope link valid_lft forever preferred_lft forever 23: veth35c3da5@if22: mtu 1500 qdisc noqueue master br-2ff72a27e7ad state UP group default link/ether 3e:23:39:40:de:a2 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::3c23:39ff:fe40:dea2/64 scope link valid_lft forever preferred_lft forever 25: veth336f98f@if24: mtu 1500 qdisc noqueue master br-2ff72a27e7ad state UP group default link/ether a6:b4:0f:ce:a6:1e brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::a4b4:fff:fece:a61e/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-46370) 09/17/25 _x86_64_ (8 CPU) 06:10:20 LINUX RESTART (8 CPU) 06:11:02 tps rtps wtps bread/s bwrtn/s 06:12:01 427.03 84.88 342.15 3748.25 134184.31 06:13:01 223.28 0.48 222.79 3.87 97575.34 06:14:01 159.51 3.38 156.12 459.26 101878.49 06:15:01 66.51 0.48 66.02 79.85 36411.13 06:16:01 68.86 20.51 48.35 780.81 5119.49 Average: 188.24 21.74 166.50 1005.22 74834.39 06:11:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:12:01 27302216 31026648 5637004 17.11 105128 3807608 2912116 8.84 2031088 3103152 116560 06:13:01 25683180 30796628 7256040 22.03 129404 5062996 3696668 11.22 2766244 3876448 378044 06:14:01 25887068 31021780 7052152 21.41 135552 5183364 2899304 8.80 2308700 4227868 525720 06:15:01 25145032 30951164 7794188 23.66 137312 5824864 3591508 10.90 2502428 4738312 244 06:16:01 24767772 30834332 8171448 24.81 145608 6050212 3649852 11.08 2647064 4945192 142388 Average: 25757054 30926110 7182166 21.80 130601 5185809 3349890 10.17 2451105 4178194 232591 06:11:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:12:01 vethef9586db 2.63 3.59 0.83 1.47 0.00 0.00 0.00 0.00 06:12:01 docker0 87.46 88.65 7.24 825.29 0.00 0.00 0.00 0.00 06:12:01 veth5dd09a88 1.54 2.24 0.17 0.51 0.00 0.00 0.00 0.00 06:12:01 veth9c4e5726 13.96 15.66 10.46 70.98 0.00 0.00 0.00 0.01 06:13:01 vethef9586db 7.38 8.96 3.12 2.41 0.00 0.00 0.00 0.00 06:13:01 docker0 38.27 45.63 2.84 437.46 0.00 0.00 0.00 0.00 06:13:01 veth5dd09a88 2.80 3.35 0.26 0.37 0.00 0.00 0.00 0.00 06:13:01 ens3 1264.58 951.60 12264.26 131.64 0.00 0.00 0.00 0.00 06:14:01 vethef9586db 7.13 8.42 2.77 1.71 0.00 0.00 0.00 0.00 06:14:01 docker0 0.03 0.07 0.00 0.01 0.00 0.00 0.00 0.00 06:14:01 veth5dd09a88 3.05 3.27 0.28 0.28 0.00 0.00 0.00 0.00 06:14:01 ens3 290.53 242.73 5486.86 19.10 0.00 0.00 0.00 0.00 06:15:01 vethef9586db 7.37 8.45 2.79 1.71 0.00 0.00 0.00 0.00 06:15:01 veth35c3da5 2.08 2.30 0.11 0.17 0.00 0.00 0.00 0.00 06:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:15:01 veth336f98f 0.00 0.20 0.00 0.02 0.00 0.00 0.00 0.00 06:16:01 vethef9586db 7.23 8.40 2.78 1.70 0.00 0.00 0.00 0.00 06:16:01 veth35c3da5 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 06:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:16:01 veth336f98f 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 Average: vethef9586db 6.36 7.58 2.46 1.80 0.00 0.00 0.00 0.00 Average: veth35c3da5 0.42 0.46 0.02 0.03 0.00 0.00 0.00 0.00 Average: docker0 24.94 26.66 2.00 250.64 0.00 0.00 0.00 0.00 Average: veth336f98f 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-46370) 09/17/25 _x86_64_ (8 CPU) 06:10:20 LINUX RESTART (8 CPU) 06:11:02 CPU %user %nice %system %iowait %steal %idle 06:12:01 all 13.44 0.68 5.04 6.74 0.08 74.02 06:12:01 0 11.58 2.08 4.91 3.57 0.07 77.79 06:12:01 1 13.21 0.00 4.90 2.71 0.09 79.09 06:12:01 2 11.05 0.00 4.47 6.39 0.09 78.01 06:12:01 3 15.60 0.00 6.14 18.28 0.07 59.92 06:12:01 4 17.46 0.00 4.86 3.64 0.09 73.96 06:12:01 5 10.85 0.00 5.36 6.43 0.09 77.27 06:12:01 6 11.65 0.00 4.18 1.54 0.09 82.54 06:12:01 7 16.13 3.36 5.48 11.34 0.09 63.61 06:13:01 all 42.00 0.00 5.76 3.75 0.11 48.38 06:13:01 0 41.26 0.00 5.92 5.75 0.12 46.96 06:13:01 1 40.42 0.00 5.47 3.10 0.10 50.92 06:13:01 2 39.47 0.00 5.25 7.68 0.10 47.50 06:13:01 3 43.27 0.00 6.16 0.66 0.12 49.80 06:13:01 4 38.84 0.00 5.61 1.15 0.10 54.30 06:13:01 5 46.98 0.00 6.09 2.37 0.12 44.44 06:13:01 6 43.34 0.00 5.26 3.88 0.10 47.43 06:13:01 7 42.40 0.00 6.31 5.49 0.12 45.68 06:14:01 all 22.02 0.20 4.51 3.30 0.11 69.86 06:14:01 0 26.43 0.00 4.16 0.93 0.13 68.35 06:14:01 1 23.48 1.63 4.44 0.15 0.12 70.18 06:14:01 2 20.06 0.00 3.92 12.68 0.10 63.24 06:14:01 3 20.61 0.00 4.44 4.18 0.15 70.62 06:14:01 4 22.72 0.00 4.29 4.83 0.10 68.06 06:14:01 5 19.59 0.00 5.13 0.02 0.10 75.16 06:14:01 6 21.37 0.00 4.26 1.80 0.10 72.47 06:14:01 7 21.95 0.00 5.43 1.75 0.08 70.78 06:15:01 all 3.19 0.00 1.53 1.79 0.07 93.42 06:15:01 0 4.99 0.00 1.31 0.57 0.07 93.06 06:15:01 1 3.17 0.00 1.33 2.07 0.07 93.36 06:15:01 2 2.71 0.00 1.50 0.52 0.07 95.21 06:15:01 3 2.49 0.00 2.12 9.08 0.05 86.26 06:15:01 4 4.01 0.00 1.51 1.44 0.07 92.97 06:15:01 5 3.17 0.00 0.99 0.07 0.07 95.70 06:15:01 6 1.88 0.00 1.28 0.57 0.07 96.21 06:15:01 7 3.15 0.00 2.25 0.02 0.08 94.50 06:16:01 all 7.61 0.00 0.85 0.65 0.06 90.83 06:16:01 0 2.56 0.00 0.62 0.13 0.05 96.64 06:16:01 1 19.97 0.00 1.29 0.55 0.08 78.11 06:16:01 2 5.31 0.00 0.75 0.02 0.07 93.85 06:16:01 3 6.51 0.00 0.80 0.15 0.08 92.45 06:16:01 4 7.27 0.00 0.99 2.85 0.07 88.83 06:16:01 5 11.11 0.00 1.15 0.17 0.07 87.50 06:16:01 6 6.03 0.00 0.82 1.21 0.07 91.87 06:16:01 7 2.10 0.00 0.42 0.10 0.03 97.35 Average: all 17.65 0.17 3.53 3.23 0.09 75.33 Average: 0 17.36 0.41 3.37 2.18 0.09 76.59 Average: 1 20.08 0.33 3.48 1.71 0.09 74.32 Average: 2 15.72 0.00 3.17 5.45 0.08 75.58 Average: 3 17.69 0.00 3.92 6.42 0.09 71.87 Average: 4 18.02 0.00 3.44 2.78 0.08 75.67 Average: 5 18.35 0.00 3.73 1.79 0.09 76.04 Average: 6 16.85 0.00 3.15 1.80 0.08 78.11 Average: 7 17.11 0.66 3.96 3.71 0.08 74.48