---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6293 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/3ea4edae71e39a8ae4b1648b3e0e32d80930a055a99f6af998f2d700f8d41455/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/0dcab2f54d481fa569638d105685d0c15e93c3cdd3874fba28acb79adf5fd479/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e9ef71376fbc4307196f176692ce5598c7346843a25768b82aa776b77b2e941c/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a42ee2a048eac45e980c22421bba3a2e038c81bf19120a804111c9f47881aefe/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/5ed40f3bfcf9e72c4515baca30abddec0594c47d2d8521c25532fde713462e10/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1539 24201 1 6426 30170 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:4f:44:d5 brd ff:ff:ff:ff:ff:ff inet 10.30.107.180/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86082sec preferred_lft 86082sec inet6 fe80::f816:3eff:fe4f:44d5/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:d2:f0:14:fb 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:d2ff:fef0:14fb/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 7e:87:e7:31:ff:02 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::7c87:e7ff:fe31:ff02/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether ae:d0:37:6c:0a:21 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::acd0:37ff:fe6c:a21/64 scope link valid_lft forever preferred_lft forever 6: veth9b56aff2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether b2:19:96:c4:e5:31 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::b019:96ff:fec4:e531/64 scope link valid_lft forever preferred_lft forever 7: veth5a547474@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:f4:1b:ab:39:1d brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::6cf4:1bff:feab:391d/64 scope link valid_lft forever preferred_lft forever 9: veth7c3bd54b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:f7:08:67:a0:41 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::6cf7:8ff:fe67:a041/64 scope link valid_lft forever preferred_lft forever 13: veth9e990b6b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether d2:7f:90:e2:0f:3e brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::d07f:90ff:fee2:f3e/64 scope link valid_lft forever preferred_lft forever 14: vethf13e78ce@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4a:74:8e:15:8e:f1 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::4874:8eff:fe15:8ef1/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6293) 10/29/26 _x86_64_ (8 CPU) 16:43:40 LINUX RESTART (8 CPU) 16:44:01 tps rtps wtps bread/s bwrtn/s 16:45:01 589.30 127.56 461.74 7338.24 176809.87 16:46:01 208.07 0.80 207.27 6.40 102028.20 16:47:01 147.71 3.42 144.29 455.79 90065.12 16:48:01 119.71 20.43 99.28 776.40 37131.68 Average: 266.20 38.05 228.15 2144.21 101508.72 16:44:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:45:01 27583996 31118892 5355224 16.26 89316 3668032 2598820 7.89 1872476 3008168 32240 16:46:01 25180312 30635380 7758908 23.56 125496 5398348 3213344 9.76 2705772 4418884 767032 16:47:01 25907204 31048244 7032016 21.35 132176 5177444 2910364 8.84 2272468 4229180 553252 16:48:01 25007892 30858932 7931328 24.08 144012 5833012 3410720 10.35 2603816 4743828 167216 Average: 25919851 30915362 7019369 21.31 122750 5019209 3033312 9.21 2363633 4100015 379935 16:44:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 16:45:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:45:01 veth7c3bd54b 0.48 0.97 0.09 0.18 0.00 0.00 0.00 0.00 16:45:01 cni0 26.70 25.80 18.26 89.19 0.00 0.00 0.50 0.00 16:45:01 vethac45672 10.70 16.28 1.03 127.16 0.00 0.00 0.00 0.01 16:46:01 veth9e990b6b 0.15 0.55 0.01 0.04 0.00 0.00 0.00 0.00 16:46:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:46:01 veth7c3bd54b 0.15 0.55 0.01 0.05 0.00 0.00 0.00 0.00 16:46:01 cni0 15.80 15.85 3.41 3.78 0.00 0.00 0.43 0.00 16:47:01 veth9e990b6b 0.02 0.05 0.00 0.00 0.00 0.00 0.00 0.00 16:47:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:47:01 veth7c3bd54b 0.12 0.15 0.01 0.02 0.00 0.00 0.00 0.00 16:47:01 cni0 11.88 13.08 2.39 1.46 0.00 0.00 0.05 0.00 16:48:01 veth9e990b6b 0.02 0.17 0.00 0.01 0.00 0.00 0.00 0.00 16:48:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:48:01 veth7c3bd54b 0.13 0.27 0.01 0.03 0.00 0.00 0.00 0.00 16:48:01 cni0 12.35 13.68 2.43 1.99 0.00 0.00 0.17 0.00 Average: veth9e990b6b 0.05 0.19 0.00 0.01 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: veth7c3bd54b 0.22 0.48 0.03 0.07 0.00 0.00 0.00 0.00 Average: cni0 16.68 17.10 6.62 24.11 0.00 0.00 0.29 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6293) 10/29/26 _x86_64_ (8 CPU) 16:43:40 LINUX RESTART (8 CPU) 16:44:01 CPU %user %nice %system %iowait %steal %idle 16:45:01 all 14.68 0.55 4.47 4.19 0.01 76.09 16:45:01 0 16.53 0.00 4.27 4.05 0.00 75.15 16:45:01 1 12.81 0.00 4.35 3.26 0.02 79.57 16:45:01 2 17.20 0.00 4.45 0.89 0.02 77.43 16:45:01 3 15.62 0.00 4.17 7.83 0.00 72.38 16:45:01 4 12.57 4.42 5.95 11.40 0.00 65.65 16:45:01 5 12.03 0.02 4.07 0.89 0.02 82.98 16:45:01 6 12.62 0.00 4.23 1.83 0.02 81.30 16:45:01 7 18.12 0.00 4.24 3.42 0.00 74.23 16:46:01 all 46.75 0.00 6.14 1.55 0.02 45.54 16:46:01 0 46.33 0.00 6.40 2.39 0.03 44.85 16:46:01 1 46.12 0.00 6.21 0.49 0.02 47.17 16:46:01 2 47.32 0.00 6.26 0.76 0.02 45.65 16:46:01 3 45.24 0.00 6.55 1.01 0.03 47.17 16:46:01 4 46.77 0.00 5.53 2.02 0.03 45.64 16:46:01 5 48.76 0.00 6.21 0.57 0.02 44.44 16:46:01 6 48.85 0.00 5.99 2.31 0.02 42.83 16:46:01 7 44.62 0.00 5.99 2.81 0.02 46.56 16:47:01 all 39.89 0.18 7.67 1.23 0.02 51.00 16:47:01 0 39.05 0.00 7.26 0.28 0.02 53.39 16:47:01 1 39.63 0.00 7.79 0.25 0.02 52.31 16:47:01 2 39.09 0.00 7.20 0.24 0.02 53.45 16:47:01 3 39.97 0.00 6.90 0.30 0.00 52.83 16:47:01 4 39.73 0.00 8.87 1.90 0.03 49.46 16:47:01 5 39.39 0.00 8.58 4.53 0.02 47.49 16:47:01 6 38.72 0.00 7.51 2.12 0.02 51.64 16:47:01 7 43.55 1.45 7.27 0.22 0.03 47.48 16:48:01 all 8.12 0.00 1.92 0.94 0.01 89.01 16:48:01 0 4.89 0.00 1.95 2.19 0.02 90.95 16:48:01 1 8.43 0.00 2.18 0.22 0.00 89.17 16:48:01 2 6.37 0.00 1.56 0.92 0.02 91.13 16:48:01 3 4.40 0.00 2.16 0.15 0.00 93.29 16:48:01 4 8.78 0.00 1.61 2.09 0.00 87.52 16:48:01 5 6.72 0.00 1.78 0.25 0.00 91.25 16:48:01 6 8.95 0.00 1.95 1.09 0.03 87.98 16:48:01 7 16.43 0.00 2.18 0.62 0.00 80.77 Average: all 27.33 0.18 5.05 1.98 0.02 65.44 Average: 0 26.67 0.00 4.97 2.23 0.02 66.12 Average: 1 26.73 0.00 5.13 1.05 0.01 67.08 Average: 2 27.49 0.00 4.87 0.70 0.02 66.93 Average: 3 26.28 0.00 4.94 2.32 0.01 66.45 Average: 4 26.90 1.10 5.48 4.35 0.02 62.16 Average: 5 26.70 0.00 5.16 1.56 0.01 66.56 Average: 6 27.26 0.00 4.92 1.84 0.02 65.97 Average: 7 30.65 0.36 4.92 1.77 0.01 62.29