---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6142 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: 2800.000 BogoMIPS: 5600.00 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/b51250a620793d05ebfd704e58cecb83c3ca1d7009c103913b86eae71727bcd7/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6a94524009aa374d4c5aa9864b659c2180e7dc7570cc5fdb2c99a5d1bbb57a0a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a6dcc249451ed44592e58aa74225f2389242c1a3044bb6ac780b6ebf5828eee6/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1c9490319f26adf9daf1963460e34407f0636fc4a10fc0ff7c1452dc34dbbaa9/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c583a16b2f96c232ed1f325940172f9f48e72ed43abfcc09a8b9f98f0d905c89/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1511 24187 1 6467 30198 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:a2:ce:15 brd ff:ff:ff:ff:ff:ff inet 10.30.107.248/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86072sec preferred_lft 86072sec inet6 fe80::f816:3eff:fea2:ce15/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:89:98:23:83 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::42:89ff:fe98:2383/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 3e:93:81:75:44:e2 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::3c93:81ff:fe75:44e2/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 9e:18:d5:bf:16:53 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::9c18:d5ff:febf:1653/64 scope link valid_lft forever preferred_lft forever 8: vethfa79019d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 06:8e:2e:20:3f:4f brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::48e:2eff:fe20:3f4f/64 scope link valid_lft forever preferred_lft forever 9: vethce796119@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 2e:95:f1:62:b6:0d brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::2c95:f1ff:fe62:b60d/64 scope link valid_lft forever preferred_lft forever 10: veth71b35900@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:7a:63:40:42:08 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::607a:63ff:fe40:4208/64 scope link valid_lft forever preferred_lft forever 11: veth35389eb2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 2e:47:b5:05:56:96 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::2c47:b5ff:fe05:5696/64 scope link valid_lft forever preferred_lft forever 12: vethfc46bcdd@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether e2:47:d9:b6:90:b8 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::e047:d9ff:feb6:90b8/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6142) 10/29/26 _x86_64_ (8 CPU) 09:23:42 LINUX RESTART (8 CPU) 09:24:02 tps rtps wtps bread/s bwrtn/s 09:25:01 584.62 128.34 456.28 7167.34 211727.87 09:26:01 184.05 2.95 181.10 351.41 87678.85 09:27:01 141.06 3.33 137.73 450.32 59285.99 09:28:01 122.93 20.41 102.52 765.21 55758.61 09:29:01 110.61 1.02 109.60 70.25 10798.20 Average: 227.48 30.89 196.59 1743.16 84633.84 09:24:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:25:01 27404792 31150184 5534428 16.80 82336 3897228 2518472 7.65 1829660 3250740 288 09:26:01 25835124 30953084 7104096 21.57 120876 5089712 2946624 8.95 2294528 4201144 422464 09:27:01 26394096 31033556 6545124 19.87 123916 4714384 3137624 9.53 2225736 3819492 472 09:28:01 25219064 30937188 7720156 23.44 133000 5731332 3306508 10.04 2470028 4685500 54716 09:29:01 24772892 30926584 8166328 24.79 140272 6117784 3289796 9.99 2494212 5062636 232864 Average: 25925194 31000119 7014026 21.29 120080 5110088 3039805 9.23 2262833 4203902 142161 09:24:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:25:01 vethfa79019d 1.25 1.91 0.14 0.51 0.00 0.00 0.00 0.00 09:25:01 cni0 26.99 26.44 18.51 90.86 0.00 0.00 0.68 0.00 09:25:01 veth35389eb2 0.10 0.27 0.01 0.02 0.00 0.00 0.00 0.00 09:25:01 vethce796119 0.47 1.14 0.09 0.19 0.00 0.00 0.00 0.00 09:26:01 vethfa79019d 2.70 3.27 0.25 0.34 0.00 0.00 0.00 0.00 09:26:01 cni0 16.26 16.46 3.63 3.59 0.00 0.00 0.27 0.00 09:26:01 veth35389eb2 0.07 0.28 0.00 0.02 0.00 0.00 0.00 0.00 09:26:01 vethce796119 0.15 0.37 0.01 0.03 0.00 0.00 0.00 0.00 09:27:01 vethfa79019d 2.98 3.50 0.28 0.30 0.00 0.00 0.00 0.00 09:27:01 cni0 11.60 13.41 2.37 1.48 0.00 0.00 0.08 0.00 09:27:01 veth35389eb2 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 09:27:01 vethce796119 0.13 0.18 0.01 0.02 0.00 0.00 0.00 0.00 09:28:01 vethfa79019d 3.18 3.55 0.29 0.40 0.00 0.00 0.00 0.00 09:28:01 cni0 12.31 13.68 2.43 2.00 0.00 0.00 0.12 0.00 09:28:01 veth35389eb2 0.00 0.12 0.00 0.01 0.00 0.00 0.00 0.00 09:28:01 vethce796119 0.12 0.22 0.01 0.03 0.00 0.00 0.00 0.00 09:29:01 vethfa79019d 3.05 3.27 0.28 0.28 0.00 0.00 0.00 0.00 09:29:01 cni0 12.01 13.16 2.40 1.47 0.00 0.00 0.05 0.00 09:29:01 veth35389eb2 0.02 0.05 0.00 0.00 0.00 0.00 0.00 0.00 09:29:01 vethce796119 0.17 0.17 0.01 0.02 0.00 0.00 0.00 0.00 Average: vethfa79019d 2.64 3.10 0.25 0.37 0.00 0.00 0.00 0.00 Average: cni0 15.80 16.60 5.83 19.65 0.00 0.00 0.24 0.00 Average: veth35389eb2 0.04 0.16 0.00 0.01 0.00 0.00 0.00 0.00 Average: vethce796119 0.21 0.41 0.03 0.06 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6142) 10/29/26 _x86_64_ (8 CPU) 09:23:42 LINUX RESTART (8 CPU) 09:24:02 CPU %user %nice %system %iowait %steal %idle 09:25:01 all 16.33 0.70 5.87 3.98 0.01 73.10 09:25:01 0 21.66 0.00 5.47 2.21 0.02 70.65 09:25:01 1 16.52 0.00 5.84 2.29 0.00 75.35 09:25:01 2 15.99 0.00 5.74 3.39 0.00 74.88 09:25:01 3 17.20 3.67 5.29 7.41 0.00 66.43 09:25:01 4 16.62 1.95 6.38 2.48 0.00 72.58 09:25:01 5 16.16 0.00 6.09 5.64 0.00 72.10 09:25:01 6 13.04 0.00 6.07 4.87 0.00 76.02 09:25:01 7 13.52 0.00 6.09 3.54 0.00 76.84 09:26:01 all 47.40 0.00 6.68 0.53 0.02 45.37 09:26:01 0 45.62 0.00 6.38 0.10 0.00 47.89 09:26:01 1 45.37 0.00 6.75 0.84 0.02 47.02 09:26:01 2 56.32 0.00 6.91 0.08 0.03 36.66 09:26:01 3 46.85 0.00 6.72 1.06 0.03 45.34 09:26:01 4 45.05 0.00 5.83 0.51 0.02 48.60 09:26:01 5 48.22 0.00 7.52 0.10 0.02 44.15 09:26:01 6 45.54 0.00 6.90 0.81 0.02 46.74 09:26:01 7 46.20 0.00 6.43 0.79 0.02 46.57 09:27:01 all 44.21 0.22 7.13 0.72 0.02 47.70 09:27:01 0 44.26 0.29 7.14 0.03 0.03 48.24 09:27:01 1 42.10 0.52 7.18 1.26 0.02 48.92 09:27:01 2 42.80 0.00 6.59 0.05 0.02 50.54 09:27:01 3 44.13 0.00 6.58 0.91 0.02 48.37 09:27:01 4 42.71 0.30 7.09 1.86 0.00 48.04 09:27:01 5 46.12 0.61 6.81 0.10 0.03 46.33 09:27:01 6 43.23 0.00 6.71 0.19 0.02 49.86 09:27:01 7 48.35 0.00 8.92 1.36 0.03 41.34 09:28:01 all 8.85 0.00 3.29 0.96 0.01 86.89 09:28:01 0 8.91 0.00 4.08 0.34 0.02 86.67 09:28:01 1 10.10 0.00 3.11 0.32 0.02 86.46 09:28:01 2 8.63 0.00 3.07 0.34 0.00 87.97 09:28:01 3 8.02 0.00 3.22 2.31 0.03 86.42 09:28:01 4 7.38 0.00 2.46 0.22 0.02 89.92 09:28:01 5 9.64 0.00 3.49 1.42 0.02 85.43 09:28:01 6 10.66 0.00 3.64 2.64 0.02 83.04 09:28:01 7 7.44 0.00 3.26 0.12 0.00 89.18 09:29:01 all 11.64 0.00 1.40 0.63 0.01 86.31 09:29:01 0 6.22 0.00 1.20 0.18 0.00 92.39 09:29:01 1 16.78 0.00 1.76 0.59 0.02 80.87 09:29:01 2 7.65 0.00 1.11 0.07 0.02 91.15 09:29:01 3 8.74 0.00 1.17 0.82 0.02 89.25 09:29:01 4 12.81 0.00 1.59 0.25 0.00 85.35 09:29:01 5 11.39 0.00 1.57 2.04 0.02 84.98 09:29:01 6 8.69 0.00 1.20 0.13 0.00 89.97 09:29:01 7 20.84 0.00 1.61 0.97 0.02 76.57 Average: all 25.71 0.18 4.87 1.35 0.02 67.87 Average: 0 25.30 0.06 4.85 0.57 0.01 69.21 Average: 1 26.19 0.10 4.92 1.05 0.01 67.71 Average: 2 26.33 0.00 4.68 0.78 0.01 68.20 Average: 3 25.02 0.72 4.59 2.47 0.02 67.18 Average: 4 24.92 0.45 4.66 1.06 0.01 68.91 Average: 5 26.35 0.12 5.09 1.84 0.02 66.58 Average: 6 24.25 0.00 4.90 1.72 0.01 69.13 Average: 7 27.30 0.00 5.25 1.35 0.01 66.08