---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6143 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: 2800.012 BogoMIPS: 5600.02 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 lbrv nrip_save tsc_scale vmcb_clean flushbyasid pausefilter pfthreshold v_vmsave_vmload vgif 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/4f0c414c93e97e9c2e88435b60939ff55e3db98c4acde0b32e39f393a6e1abbb/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c00fe9a149361de4fe254d08a4cd4b7507bdb23b773c203c87ed01edbd6aff94/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/02675ea1644bd89c63b4360e29f63f555a62afa57e9f09433c2f675703b7debc/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c3a47e3be090d55ca8ae4015e989d366eb7486559cc365f75d74dc785ed7e854/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6bb11ba3ce00447254f6c32359db154a63a0875469b175dbf8fd4ff1e4f44105/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1516 24182 1 6468 30194 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:21:06:d9 brd ff:ff:ff:ff:ff:ff inet 10.30.107.163/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86084sec preferred_lft 86084sec inet6 fe80::f816:3eff:fe21:6d9/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:1b:dc:28:9c 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::42:1bff:fedc:289c/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether fa:3f:76:4e:ee:e8 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::f83f:76ff:fe4e:eee8/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 22:e4:12:0b:9e:f7 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::20e4:12ff:fe0b:9ef7/64 scope link valid_lft forever preferred_lft forever 6: veth4ff47cb1@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 5e:ab:03:29:65:bf brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::5cab:3ff:fe29:65bf/64 scope link valid_lft forever preferred_lft forever 8: vethdca8710c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:82:84:21:fe:17 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::3082:84ff:fe21:fe17/64 scope link valid_lft forever preferred_lft forever 10: vetha8f44ff8@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:df:6a:cf:2c:ba brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::30df:6aff:fecf:2cba/64 scope link valid_lft forever preferred_lft forever 13: veth7b0adfca@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:e7:31:2d:4c:cf brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::60e7:31ff:fe2d:4ccf/64 scope link valid_lft forever preferred_lft forever 14: veth0eda75ae@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:95:18:32:85:f3 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::6c95:18ff:fe32:85f3/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6143) 10/29/26 _x86_64_ (8 CPU) 09:24:11 LINUX RESTART (8 CPU) 09:25:01 tps rtps wtps bread/s bwrtn/s 09:26:01 435.15 48.47 386.69 2945.68 172119.69 09:27:01 114.60 0.02 114.58 0.13 61143.14 09:28:01 210.48 4.00 206.48 553.64 93240.86 09:29:01 102.65 20.40 82.25 762.27 8328.61 Average: 215.73 18.22 197.51 1065.51 83711.76 09:25:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:26:01 25635820 30953452 7303400 22.17 120648 5287548 2963416 9.00 2692792 4003540 991700 09:27:01 24242056 30580688 8697164 26.40 121988 6270540 3330864 10.11 3606508 4443524 1054780 09:28:01 25348184 30970644 7591036 23.05 128328 5649732 3262976 9.91 2414248 4624704 716 09:29:01 24815080 30888472 8124140 24.66 141196 6044004 3303352 10.03 2546068 4980972 252316 Average: 25010285 30848314 7928935 24.07 128040 5812956 3215152 9.76 2814904 4513185 574878 09:25:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:26:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:26:01 ens3 589.25 319.23 11268.42 30.53 0.00 0.00 0.00 0.00 09:26:01 veth7b0adfca 0.15 0.48 0.01 0.04 0.00 0.00 0.00 0.00 09:26:01 lo 218.64 218.64 171.69 171.69 0.00 0.00 0.00 0.00 09:27:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:27:01 ens3 6.27 2.47 5.57 0.85 0.00 0.00 0.00 0.00 09:27:01 veth7b0adfca 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 09:27:01 lo 12.43 12.43 3.72 3.72 0.00 0.00 0.00 0.00 09:28:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:28:01 ens3 349.66 171.60 6083.91 16.81 0.00 0.00 0.00 0.00 09:28:01 veth7b0adfca 0.02 0.18 0.00 0.01 0.00 0.00 0.00 0.00 09:28:01 lo 41.54 41.54 15.67 15.67 0.00 0.00 0.00 0.00 09:29:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:29:01 ens3 93.92 55.62 1376.96 11.07 0.00 0.00 0.00 0.00 09:29:01 veth7b0adfca 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 09:29:01 lo 22.55 22.55 6.36 6.36 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: ens3 259.79 137.24 4683.99 14.82 0.00 0.00 0.00 0.00 Average: veth7b0adfca 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 Average: lo 73.80 73.80 49.37 49.37 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6143) 10/29/26 _x86_64_ (8 CPU) 09:24:11 LINUX RESTART (8 CPU) 09:25:01 CPU %user %nice %system %iowait %steal %idle 09:26:01 all 45.22 0.00 8.48 2.14 0.02 44.14 09:26:01 0 45.54 0.00 8.66 0.88 0.02 44.91 09:26:01 1 45.01 0.00 8.52 0.66 0.02 45.79 09:26:01 2 44.56 0.00 8.57 4.68 0.02 42.17 09:26:01 3 44.48 0.00 7.80 1.79 0.02 45.90 09:26:01 4 45.18 0.00 8.01 1.37 0.02 45.43 09:26:01 5 46.18 0.00 8.99 2.31 0.02 42.50 09:26:01 6 44.51 0.00 8.85 1.12 0.03 45.49 09:26:01 7 46.34 0.00 8.43 4.32 0.02 40.89 09:27:01 all 51.31 0.00 7.04 0.47 0.02 41.16 09:27:01 0 50.46 0.00 7.32 0.00 0.02 42.21 09:27:01 1 53.61 0.00 6.62 0.02 0.02 39.74 09:27:01 2 54.11 0.00 6.86 0.00 0.03 38.99 09:27:01 3 49.30 0.00 6.65 0.13 0.02 43.89 09:27:01 4 50.68 0.00 6.93 1.05 0.02 41.32 09:27:01 5 53.46 0.00 7.83 0.00 0.02 38.70 09:27:01 6 48.91 0.00 7.31 0.86 0.02 42.91 09:27:01 7 49.91 0.00 6.83 1.68 0.02 41.57 09:28:01 all 7.99 0.20 3.92 1.12 0.01 86.76 09:28:01 0 6.11 0.00 3.28 0.73 0.02 89.86 09:28:01 1 11.70 0.00 3.53 0.45 0.00 84.31 09:28:01 2 6.53 0.00 4.27 0.52 0.00 88.68 09:28:01 3 10.76 0.00 3.50 0.88 0.02 84.85 09:28:01 4 8.73 0.00 4.37 3.39 0.00 83.51 09:28:01 5 6.56 1.58 4.13 2.18 0.03 85.52 09:28:01 6 5.95 0.00 4.12 0.74 0.02 89.17 09:28:01 7 7.56 0.00 4.15 0.08 0.02 88.19 09:29:01 all 11.55 0.00 1.28 0.63 0.01 86.52 09:29:01 0 7.90 0.00 1.02 0.22 0.00 90.86 09:29:01 1 4.00 0.00 0.94 0.17 0.02 94.88 09:29:01 2 3.31 0.00 1.07 0.55 0.00 95.07 09:29:01 3 9.21 0.00 1.17 0.15 0.00 89.46 09:29:01 4 6.07 0.00 1.24 0.15 0.00 92.54 09:29:01 5 10.56 0.00 1.31 3.12 0.00 85.01 09:29:01 6 27.26 0.00 1.85 0.27 0.02 70.60 09:29:01 7 24.11 0.00 1.64 0.45 0.02 73.79 Average: all 28.99 0.05 5.17 1.09 0.01 64.68 Average: 0 27.49 0.00 5.06 0.45 0.01 66.98 Average: 1 28.53 0.00 4.89 0.32 0.01 66.24 Average: 2 27.07 0.00 5.18 1.43 0.01 66.31 Average: 3 28.41 0.00 4.78 0.74 0.01 66.07 Average: 4 27.66 0.00 5.13 1.49 0.01 65.72 Average: 5 29.19 0.40 5.56 1.90 0.02 62.94 Average: 6 31.63 0.00 5.52 0.74 0.02 62.08 Average: 7 31.97 0.00 5.25 1.63 0.02 61.13