---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-16726 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 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/5695d649ca6b5452daf10ea53f9923b9b00b6b742f31b3a656e974cd3e6a1977/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/3e0ae80b468253034641b8083fbc47587af4e0d706e18a55b016eaaa6f225dac/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/dd16ad50f66b67b7414e0805c129cde7c95234aa12e3c61342efb843ff086c9e/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/70d1ad741098216e84a314fb1da1206e9914b2c2991f2dde918b797786a3d0d3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/9b25fb9be1b44e62d7c5074895cace9331d403085b6678040cbd3e6ccbe21805/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1526 24212 1 6428 30183 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:f1:8d brd ff:ff:ff:ff:ff:ff inet 10.30.106.243/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86073sec preferred_lft 86073sec inet6 fe80::f816:3eff:fe21:f18d/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:b3:2b:9e:78 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:b3ff:fe2b:9e78/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 56:c1:e0:5a:25:ca 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::54c1:e0ff:fe5a:25ca/64 scope link valid_lft forever preferred_lft forever 7: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether aa:a1:03:4b:52:af 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::a8a1:3ff:fe4b:52af/64 scope link valid_lft forever preferred_lft forever 8: veth52532199@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether aa:42:68:54:bf:90 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::a842:68ff:fe54:bf90/64 scope link valid_lft forever preferred_lft forever 9: veth8e1f7979@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 5a:f3:23:93:36:66 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::58f3:23ff:fe93:3666/64 scope link valid_lft forever preferred_lft forever 11: vethc27f3edf@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 5a:82:e2:c5:05:89 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::5882:e2ff:fec5:589/64 scope link valid_lft forever preferred_lft forever 13: vethd5228e5f@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 8e:bb:89:14:fb:8d brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::8cbb:89ff:fe14:fb8d/64 scope link valid_lft forever preferred_lft forever 14: veth89f4a7c3@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 56:4d:2c:d2:0f:65 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::544d:2cff:fed2:f65/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-16726) 08/31/26 _x86_64_ (8 CPU) 05:56:32 LINUX RESTART (8 CPU) 05:57:02 tps rtps wtps bread/s bwrtn/s 05:58:01 595.36 93.46 501.90 4113.76 149653.02 05:59:01 280.44 0.65 279.79 8.13 93352.22 06:00:01 173.12 3.42 169.71 465.52 74194.30 06:01:01 111.53 20.31 91.22 741.08 36448.73 Average: 288.82 29.19 259.63 1320.31 88153.51 05:57:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:58:01 27597240 31168792 5341980 16.22 106844 3655696 2716356 8.25 1836100 3000964 360620 05:59:01 25919252 31060564 7019968 21.31 133000 5092972 2806544 8.52 2532604 3868888 424272 06:00:01 26098548 31056644 6840672 20.77 137704 5003480 2953476 8.97 2244492 4077164 365764 06:01:01 25066316 30869984 7872904 23.90 146612 5796780 3371592 10.24 2565492 4737396 130776 Average: 26170339 31038996 6768881 20.55 131040 4887232 2961992 8.99 2294672 3921103 320358 05:57:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:58:01 cni0 2.22 1.69 0.40 0.65 0.00 0.00 0.46 0.00 05:58:01 veth6df2d9d 93.29 108.17 9.33 888.54 0.00 0.00 0.00 0.07 05:58:01 veth52532199 1.49 1.93 0.32 0.56 0.00 0.00 0.00 0.00 05:58:01 lo 166.10 166.10 80.62 80.62 0.00 0.00 0.00 0.00 05:59:01 cni0 39.50 39.10 21.21 92.14 0.00 0.00 0.47 0.00 05:59:01 veth6df2d9d 54.98 77.72 5.00 793.76 0.00 0.00 0.00 0.07 05:59:01 veth52532199 7.73 9.35 2.42 2.20 0.00 0.00 0.00 0.00 05:59:01 lo 69.11 69.11 96.12 96.12 0.00 0.00 0.00 0.00 06:00:01 cni0 11.68 13.25 2.38 1.47 0.00 0.00 0.05 0.00 06:00:01 veth52532199 7.08 8.37 2.13 0.98 0.00 0.00 0.00 0.00 06:00:01 lo 16.51 16.51 4.25 4.25 0.00 0.00 0.00 0.00 06:00:01 vethc27f3edf 6.47 7.68 0.63 1.03 0.00 0.00 0.00 0.00 06:01:01 cni0 12.11 13.56 2.40 1.98 0.00 0.00 0.17 0.00 06:01:01 veth52532199 7.12 8.60 2.12 1.19 0.00 0.00 0.00 0.00 06:01:01 lo 42.83 42.83 17.30 17.30 0.00 0.00 0.00 0.00 06:01:01 vethc27f3edf 3.15 3.48 0.29 0.40 0.00 0.00 0.00 0.00 Average: cni0 16.44 16.97 6.62 24.16 0.00 0.00 0.28 0.00 Average: veth52532199 5.87 7.08 1.75 1.24 0.00 0.00 0.00 0.00 Average: lo 73.25 73.25 49.44 49.44 0.00 0.00 0.00 0.00 Average: vethc27f3edf 2.41 2.80 0.23 0.36 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-16726) 08/31/26 _x86_64_ (8 CPU) 05:56:32 LINUX RESTART (8 CPU) 05:57:02 CPU %user %nice %system %iowait %steal %idle 05:58:01 all 14.96 0.68 5.51 3.57 0.01 75.26 05:58:01 0 12.87 2.05 6.09 1.14 0.02 77.83 05:58:01 1 11.53 0.00 4.63 1.47 0.00 82.37 05:58:01 2 17.12 0.00 6.69 1.88 0.02 74.30 05:58:01 3 25.07 0.00 6.84 7.61 0.02 60.46 05:58:01 4 12.80 0.00 4.71 3.34 0.00 79.15 05:58:01 5 14.01 0.00 5.56 4.50 0.02 75.91 05:58:01 6 11.95 1.25 4.74 7.40 0.00 74.65 05:58:01 7 14.37 2.09 4.78 1.30 0.00 77.45 05:59:01 all 45.88 0.00 6.76 1.16 0.02 46.18 05:59:01 0 46.50 0.00 7.24 1.14 0.00 45.12 05:59:01 1 47.66 0.00 6.85 1.14 0.03 44.31 05:59:01 2 44.44 0.00 7.04 0.71 0.03 47.78 05:59:01 3 45.10 0.00 6.71 2.38 0.02 45.80 05:59:01 4 49.50 0.00 7.04 0.84 0.02 42.60 05:59:01 5 47.03 0.00 6.37 0.93 0.03 45.64 05:59:01 6 43.28 0.00 6.60 1.08 0.02 49.03 05:59:01 7 43.56 0.00 6.27 1.01 0.02 49.15 06:00:01 all 41.75 0.24 7.48 0.82 0.02 49.69 06:00:01 0 41.09 0.00 7.54 0.19 0.03 51.15 06:00:01 1 45.14 0.71 9.34 0.24 0.02 44.56 06:00:01 2 42.21 0.00 7.45 0.30 0.02 50.02 06:00:01 3 41.01 0.08 7.32 2.37 0.02 49.20 06:00:01 4 43.68 0.00 7.95 3.22 0.03 45.12 06:00:01 5 39.92 0.00 6.96 0.08 0.00 53.03 06:00:01 6 41.43 1.10 6.45 0.07 0.02 50.94 06:00:01 7 39.55 0.00 6.81 0.12 0.02 53.51 06:01:01 all 8.40 0.00 2.45 0.77 0.01 88.37 06:01:01 0 13.18 0.00 2.61 0.28 0.00 83.92 06:01:01 1 6.31 0.00 2.39 0.50 0.02 90.78 06:01:01 2 4.35 0.00 2.12 0.05 0.02 93.46 06:01:01 3 17.09 0.00 2.38 1.39 0.02 79.12 06:01:01 4 7.75 0.00 2.53 1.58 0.00 88.14 06:01:01 5 5.87 0.00 2.01 0.25 0.02 91.85 06:01:01 6 8.07 0.00 2.43 0.85 0.02 88.63 06:01:01 7 4.52 0.00 3.14 1.29 0.00 91.04 Average: all 27.78 0.23 5.55 1.57 0.01 64.86 Average: 0 28.44 0.51 5.86 0.69 0.01 64.49 Average: 1 27.69 0.18 5.80 0.83 0.02 65.48 Average: 2 27.05 0.00 5.82 0.73 0.02 66.38 Average: 3 32.08 0.02 5.80 3.42 0.02 58.67 Average: 4 28.50 0.00 5.56 2.24 0.01 63.69 Average: 5 26.73 0.00 5.22 1.42 0.02 66.61 Average: 6 26.23 0.58 5.05 2.32 0.01 65.80 Average: 7 25.53 0.52 5.25 0.93 0.01 67.76