---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4847 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/a0054eea843fa93e6b62e8529357000c190d525c427abe3a88eb35abb7fbe915/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/10b8dcd1e76bc18b8f11a5b29c9605f0fd80593aaa8943a3806d13e109d12347/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/609adeb13534eec27697f871433b47708c5af01cab7985bfe43fd220de578da0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/94b34dc7505bccb3a155a2b0cdc1bdc8787807c461654ae265b05132684e2524/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/50535f770614cfab82fd26a1decf303e8b749efa7b3012ba4a71b6cd60a10fbc/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1531 24197 1 6438 30179 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:3a:c5:1c brd ff:ff:ff:ff:ff:ff inet 10.30.107.183/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86092sec preferred_lft 86092sec inet6 fe80::f816:3eff:fe3a:c51c/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:2d:ed:95:72 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::42:2dff:feed:9572/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 4a:65:22:12:7b:2f 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::4865:22ff:fe12:7b2f/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether fa:df:e9:44:72:77 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::f8df:e9ff:fe44:7277/64 scope link valid_lft forever preferred_lft forever 7: veth7205c809@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 0a:2a:89:97:d2:3a brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::82a:89ff:fe97:d23a/64 scope link valid_lft forever preferred_lft forever 9: veth411cac58@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:aa:76:73:98:b7 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::30aa:76ff:fe73:98b7/64 scope link valid_lft forever preferred_lft forever 10: veth380ad3ab@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether b6:1d:18:d3:44:cf brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::b41d:18ff:fed3:44cf/64 scope link valid_lft forever preferred_lft forever 11: veth7db95502@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 56:fa:ef:18:a8:dc brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::54fa:efff:fe18:a8dc/64 scope link valid_lft forever preferred_lft forever 12: veth304a6d45@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 5a:2c:dd:14:f7:54 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::582c:ddff:fe14:f754/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4847) 07/03/26 _x86_64_ (8 CPU) 11:36:52 LINUX RESTART (8 CPU) 11:37:01 tps rtps wtps bread/s bwrtn/s 11:38:03 616.36 133.64 482.72 8011.46 205897.02 11:39:01 381.85 3.14 378.71 369.18 97888.23 11:40:01 183.60 3.40 180.20 457.92 80477.92 11:41:01 117.10 20.45 96.65 768.14 36823.06 Average: 324.25 40.47 283.78 2418.75 105333.59 11:37:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:38:03 27703304 31152320 5235916 15.90 72452 3640012 2575936 7.82 1817640 3000356 52024 11:39:01 25347524 30537236 7591696 23.05 137364 5136976 3368100 10.23 2840216 4132868 709572 11:40:01 25937812 31046140 7001408 21.26 142292 5145668 3056968 9.28 2262636 4218392 508856 11:41:01 25041952 30869184 7897268 23.98 151384 5813220 3349672 10.17 2573888 4752460 141020 Average: 26007648 30901220 6931572 21.04 125873 4933969 3087669 9.37 2373595 4026019 352868 11:37:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 11:38:03 veth411cac58 0.93 1.32 0.11 0.36 0.00 0.00 0.00 0.00 11:38:03 veth380ad3ab 0.47 0.92 0.09 0.17 0.00 0.00 0.00 0.00 11:38:03 veth201780d1 9.72 9.43 8.64 18.75 0.00 0.00 0.00 0.00 11:38:03 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:39:01 veth411cac58 2.72 3.38 0.25 0.45 0.00 0.00 0.00 0.00 11:39:01 veth7db95502 0.17 0.53 0.01 0.04 0.00 0.00 0.00 0.00 11:39:01 veth380ad3ab 0.17 0.55 0.01 0.05 0.00 0.00 0.00 0.00 11:39:01 vethfd66164 153.18 198.02 14.11 1660.13 0.00 0.00 0.00 0.14 11:40:01 veth411cac58 3.03 3.32 0.28 0.29 0.00 0.00 0.00 0.00 11:40:01 veth7db95502 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 11:40:01 veth380ad3ab 0.10 0.15 0.01 0.02 0.00 0.00 0.00 0.00 11:40:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:41:01 veth411cac58 3.18 3.62 0.29 0.41 0.00 0.00 0.00 0.00 11:41:01 veth7db95502 0.00 0.17 0.00 0.01 0.00 0.00 0.00 0.00 11:41:01 veth380ad3ab 0.12 0.25 0.01 0.03 0.00 0.00 0.00 0.00 11:41:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth411cac58 2.47 2.90 0.23 0.37 0.00 0.00 0.00 0.00 Average: veth7db95502 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 Average: veth380ad3ab 0.21 0.47 0.03 0.07 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 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4847) 07/03/26 _x86_64_ (8 CPU) 11:36:52 LINUX RESTART (8 CPU) 11:37:01 CPU %user %nice %system %iowait %steal %idle 11:38:03 all 13.86 0.63 4.40 3.31 0.06 77.74 11:38:03 0 13.07 0.00 4.44 4.16 0.05 78.28 11:38:03 1 10.48 1.77 5.57 0.87 0.07 81.25 11:38:03 2 12.62 0.00 3.46 5.67 0.07 78.18 11:38:03 3 14.04 0.00 3.53 0.62 0.07 81.74 11:38:03 4 11.31 0.02 4.47 6.81 0.05 77.35 11:38:03 5 13.13 1.58 4.65 1.29 0.05 79.29 11:38:03 6 14.07 0.00 4.23 1.99 0.08 79.63 11:38:03 7 22.16 1.63 4.84 5.11 0.07 66.19 11:39:01 all 39.29 0.00 5.81 2.38 0.10 52.42 11:39:01 0 38.72 0.00 5.67 2.92 0.09 52.60 11:39:01 1 37.87 0.00 5.69 1.20 0.09 55.15 11:39:01 2 41.79 0.00 6.03 2.60 0.10 49.49 11:39:01 3 39.06 0.00 5.92 1.65 0.09 53.29 11:39:01 4 39.53 0.00 6.29 3.33 0.09 50.77 11:39:01 5 39.34 0.00 5.83 1.77 0.10 52.96 11:39:01 6 39.02 0.00 5.42 4.08 0.10 51.37 11:39:01 7 39.02 0.00 5.67 1.44 0.09 53.78 11:40:01 all 37.03 0.21 6.34 1.11 0.09 55.22 11:40:01 0 39.63 0.00 6.28 1.30 0.10 52.69 11:40:01 1 34.65 0.00 5.48 0.10 0.10 59.67 11:40:01 2 39.84 0.00 6.37 0.27 0.08 53.44 11:40:01 3 36.57 0.00 6.84 1.35 0.10 55.14 11:40:01 4 36.47 0.00 5.98 3.17 0.08 54.30 11:40:01 5 37.30 1.70 6.69 1.56 0.08 52.66 11:40:01 6 35.44 0.00 7.22 1.08 0.10 56.15 11:40:01 7 36.33 0.00 5.86 0.10 0.10 57.61 11:41:01 all 7.76 0.00 1.89 0.85 0.07 89.43 11:41:01 0 4.90 0.00 1.75 2.03 0.05 91.27 11:41:01 1 3.87 0.00 1.93 0.07 0.07 94.06 11:41:01 2 6.04 0.00 1.61 0.30 0.07 91.98 11:41:01 3 8.38 0.00 1.79 0.92 0.05 88.86 11:41:01 4 7.41 0.00 1.46 0.15 0.07 90.91 11:41:01 5 16.09 0.00 2.43 2.21 0.08 79.18 11:41:01 6 3.33 0.00 1.77 0.91 0.08 93.91 11:41:01 7 12.05 0.00 2.40 0.15 0.08 85.32 Average: all 24.35 0.21 4.60 1.91 0.08 68.85 Average: 0 23.92 0.00 4.52 2.60 0.07 68.88 Average: 1 21.59 0.44 4.66 0.55 0.08 72.67 Average: 2 24.92 0.00 4.35 2.21 0.08 68.44 Average: 3 24.37 0.00 4.50 1.13 0.08 69.92 Average: 4 23.52 0.00 4.53 3.36 0.07 68.51 Average: 5 26.36 0.83 4.89 1.71 0.08 66.13 Average: 6 22.82 0.00 4.65 2.00 0.09 70.44 Average: 7 27.27 0.41 4.68 1.70 0.08 65.85