---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-4828 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 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/3c9cf4207124cf762f3c5b9d49800139b2ab5aa640105b63b21b460475b37e7e/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/3ebcaf9687cf8c8cbf814cc830ca7d540cd31f31e36dacaab073556e57da56d0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/2a2d7448f16b10155b2956127571f87fb1e469f4ceeac544269365f7f24a6dfc/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d35745f4f7eab6d3768112b7a7a0b7ec5b31de739ccd52a62b8cf612fd848ec5/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/3d59a5d050e93aa21b2039f8750cb40c19ba6527449d6374712dbf5ebd4fa9bc/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1556 24174 1 6436 30154 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:a0:a0:07 brd ff:ff:ff:ff:ff:ff inet 10.30.106.221/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86060sec preferred_lft 86060sec inet6 fe80::f816:3eff:fea0:a007/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:e0:1a:0a:98 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:e0ff:fe1a:a98/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 32:b5:29:3d:ad:71 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::30b5:29ff:fe3d:ad71/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 3e:6b:af:d6:ff:fa 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::3c6b:afff:fed6:fffa/64 scope link valid_lft forever preferred_lft forever 8: vethb4635d15@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ca:a7:11:1e:af:13 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::c8a7:11ff:fe1e:af13/64 scope link valid_lft forever preferred_lft forever 9: vethfae74e2a@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ee:66:d2:68:61:ba brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::ec66:d2ff:fe68:61ba/64 scope link valid_lft forever preferred_lft forever 10: vethb5da7e72@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 52:4f:de:f2:24:69 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::504f:deff:fef2:2469/64 scope link valid_lft forever preferred_lft forever 13: veth7f0a0554@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether aa:ee:c6:09:f7:42 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::a8ee:c6ff:fe09:f742/64 scope link valid_lft forever preferred_lft forever 14: veth5e22eee2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether a6:65:9f:0f:c8:c4 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::a465:9fff:fe0f:c8c4/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4828) 07/03/26 _x86_64_ (8 CPU) 10:29:22 LINUX RESTART (8 CPU) 10:30:01 tps rtps wtps bread/s bwrtn/s 10:31:01 519.03 83.29 435.74 3681.79 157864.36 10:32:01 191.45 0.03 191.42 0.27 76282.09 10:33:01 180.80 3.50 177.30 479.65 91759.24 10:34:01 99.02 20.43 78.59 764.68 17865.11 Average: 247.57 26.81 220.76 1231.58 85939.86 10:30:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:31:01 26653076 31043752 6286144 19.08 128864 4388700 2866740 8.70 2086164 3629244 556360 10:32:01 25575072 30891972 7364148 22.36 136992 5260764 3674684 11.16 2791488 3950644 581972 10:33:01 25650080 31054612 7289140 22.13 141804 5425808 2709808 8.23 2254180 4497664 133000 10:34:01 24936904 30840200 8002316 24.29 150492 5878720 3346092 10.16 2620912 4795720 211120 Average: 25703783 30957634 7235437 21.97 139538 5238498 3149331 9.56 2438186 4218318 370613 10:30:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 10:31:01 ens3 512.86 362.84 11263.17 34.79 0.00 0.00 0.00 0.00 10:31:01 veth1a7a4ce 151.97 187.14 13.80 1603.72 0.00 0.00 0.00 0.13 10:31:01 vethb5da7e72 2.02 2.73 0.21 0.66 0.00 0.00 0.00 0.00 10:31:01 lo 218.75 218.75 171.05 171.05 0.00 0.00 0.00 0.00 10:32:01 ens3 25.00 16.76 25.47 2.14 0.00 0.00 0.00 0.00 10:32:01 veth1a7a4ce 13.11 18.50 1.20 20.10 0.00 0.00 0.00 0.00 10:32:01 vethb5da7e72 2.82 3.27 0.26 0.28 0.00 0.00 0.00 0.00 10:32:01 lo 14.28 14.28 4.52 4.52 0.00 0.00 0.00 0.00 10:33:01 ens3 183.35 111.18 5373.22 11.71 0.00 0.00 0.00 0.00 10:33:01 vethb5da7e72 3.02 3.43 0.28 0.29 0.00 0.00 0.00 0.00 10:33:01 lo 16.93 16.93 4.34 4.34 0.00 0.00 0.00 0.00 10:33:01 veth5e22eee2 7.90 7.22 1.30 2.22 0.00 0.00 0.00 0.00 10:34:01 ens3 100.63 70.39 1567.58 10.15 0.00 0.00 0.00 0.00 10:34:01 vethb5da7e72 3.07 3.53 0.28 0.40 0.00 0.00 0.00 0.00 10:34:01 lo 42.47 42.47 17.04 17.04 0.00 0.00 0.00 0.00 10:34:01 veth5e22eee2 1.60 1.83 0.14 0.41 0.00 0.00 0.00 0.00 Average: ens3 205.46 140.29 4557.24 14.70 0.00 0.00 0.00 0.00 Average: vethb5da7e72 2.73 3.24 0.26 0.41 0.00 0.00 0.00 0.00 Average: lo 73.11 73.11 49.24 49.24 0.00 0.00 0.00 0.00 Average: veth5e22eee2 2.37 2.26 0.36 0.66 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-4828) 07/03/26 _x86_64_ (8 CPU) 10:29:22 LINUX RESTART (8 CPU) 10:30:01 CPU %user %nice %system %iowait %steal %idle 10:31:01 all 15.27 0.64 5.67 6.98 0.09 71.35 10:31:01 0 12.36 0.00 5.12 5.02 0.08 77.42 10:31:01 1 16.76 0.00 5.71 2.79 0.08 74.65 10:31:01 2 20.21 3.26 5.84 10.90 0.12 59.69 10:31:01 3 14.72 0.02 6.42 12.07 0.08 66.69 10:31:01 4 13.16 0.00 6.26 6.91 0.08 73.59 10:31:01 5 14.47 0.00 5.57 9.08 0.10 70.77 10:31:01 6 16.58 1.83 5.55 4.69 0.10 71.25 10:31:01 7 13.91 0.00 4.90 4.38 0.10 76.71 10:32:01 all 43.60 0.00 5.38 1.67 0.10 49.25 10:32:01 0 41.82 0.00 5.87 4.57 0.12 47.62 10:32:01 1 42.23 0.00 5.20 0.10 0.10 52.37 10:32:01 2 49.67 0.00 5.22 0.07 0.10 44.94 10:32:01 3 45.84 0.00 5.41 1.58 0.10 47.07 10:32:01 4 40.27 0.00 5.36 0.13 0.10 54.14 10:32:01 5 44.31 0.00 5.32 4.00 0.10 46.27 10:32:01 6 43.00 0.00 5.11 0.29 0.10 51.50 10:32:01 7 41.66 0.00 5.59 2.57 0.12 50.07 10:33:01 all 30.09 0.30 6.23 2.80 0.10 60.49 10:33:01 0 29.38 0.00 5.44 4.76 0.10 60.32 10:33:01 1 31.91 0.00 5.69 2.54 0.10 59.75 10:33:01 2 34.61 0.00 5.69 1.18 0.10 58.42 10:33:01 3 28.21 0.00 6.25 0.02 0.10 65.43 10:33:01 4 31.06 0.00 6.56 2.98 0.10 59.30 10:33:01 5 28.65 1.57 6.08 1.12 0.10 62.48 10:33:01 6 28.58 0.00 5.89 0.22 0.08 65.22 10:33:01 7 28.31 0.78 8.22 9.57 0.10 53.02 10:34:01 all 7.48 0.00 1.52 0.98 0.07 89.96 10:34:01 0 14.15 0.00 2.15 0.25 0.05 83.39 10:34:01 1 10.93 0.00 1.52 0.89 0.07 86.59 10:34:01 2 5.00 0.00 1.31 0.74 0.07 92.89 10:34:01 3 8.32 0.00 1.74 0.13 0.07 89.73 10:34:01 4 10.15 0.00 1.39 0.37 0.07 88.03 10:34:01 5 4.01 0.00 1.26 0.15 0.07 94.51 10:34:01 6 4.59 0.00 1.53 1.04 0.07 92.77 10:34:01 7 2.57 0.00 1.21 4.31 0.05 91.87 Average: all 24.08 0.23 4.69 3.10 0.09 67.80 Average: 0 24.41 0.00 4.64 3.64 0.09 67.22 Average: 1 25.43 0.00 4.53 1.58 0.09 68.38 Average: 2 27.34 0.81 4.51 3.21 0.10 64.03 Average: 3 24.25 0.00 4.95 3.45 0.09 67.26 Average: 4 23.63 0.00 4.88 2.60 0.09 68.80 Average: 5 22.85 0.39 4.55 3.58 0.09 68.53 Average: 6 23.17 0.46 4.51 1.56 0.09 70.22 Average: 7 21.59 0.19 4.97 5.20 0.09 67.95