---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-46250 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 1.6M 3.2G 1% /run /dev/vda1 155G 13G 143G 9% / 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/463e6cb4401ac6f839b67570adb789a2d25a0c0915379f7159816281c1ca9bbd/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/fe2b31f66eb0b972d30f156bbfbaa22cc11c93fd7772edc72492d67c6fc2e8aa/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/6404e79425a61b9df89bcb2f6275907c318a2ede9884745dc87b3d2a80f56316/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/aab6d43bed0f1310a557f99074e87a27e395e8a199f704d5bbb4dac6ecebb8f5/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/fa51baa7dc4c110e8c8ec6eb3eb9db6dc02ab1005564cc07077f9d738b3dca70/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1450 25451 1 5264 30259 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:48:72:1f brd ff:ff:ff:ff:ff:ff inet 10.30.106.233/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86096sec preferred_lft 86096sec inet6 fe80::f816:3eff:fe48:721f/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:0c:ca:54:13 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:cff:feca:5413/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 9e:0f:ac:45:47:94 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::9c0f:acff:fe45:4794/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 86:6a:f7:07:35:70 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::846a:f7ff:fe07:3570/64 scope link valid_lft forever preferred_lft forever 8: vetha2fc5f82@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:52:6d:6f:5d:e1 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::1c52:6dff:fe6f:5de1/64 scope link valid_lft forever preferred_lft forever 9: vetha31a020b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether c6:ad:a5:f4:e8:77 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::c4ad:a5ff:fef4:e877/64 scope link valid_lft forever preferred_lft forever 10: veth97e56fae@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 06:a0:06:e5:ff:54 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::4a0:6ff:fee5:ff54/64 scope link valid_lft forever preferred_lft forever 11: veth29f44f6d@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 16:5f:33:fb:46:5c brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::145f:33ff:fefb:465c/64 scope link valid_lft forever preferred_lft forever 12: vethac8105f3@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 56:b7:89:7f:e7:3c brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::54b7:89ff:fe7f:e73c/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-46250) 09/16/25 _x86_64_ (8 CPU) 14:03:40 LINUX RESTART (8 CPU) 14:04:01 tps rtps wtps bread/s bwrtn/s 14:05:01 452.31 117.08 335.23 6333.48 108870.52 14:06:01 359.46 4.42 355.04 398.47 123844.29 14:07:01 174.42 3.13 171.29 435.13 106303.88 14:08:01 142.93 20.78 122.15 812.26 40441.26 Average: 282.28 36.35 245.93 1994.83 94864.99 14:04:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 14:05:01 29140896 31272284 3798324 11.53 55968 2375652 2203556 6.69 1666440 1793952 177192 14:06:01 25820944 30894428 7118276 21.61 130704 5001872 3641660 11.06 2641732 3873600 1005544 14:07:01 26881536 31052276 6057684 18.39 131940 4251484 2488056 7.55 2133504 3446848 21564 14:08:01 26204096 31004464 6735124 20.45 142928 4833596 2498976 7.59 2223096 3995724 146328 Average: 27011868 31055863 5927352 17.99 115385 4115651 2708062 8.22 2166193 3277531 337657 14:04:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 14:05:01 vetha31a020b 0.10 0.47 0.01 0.04 0.00 0.00 0.00 0.00 14:05:01 vetha2fc5f82 0.10 0.52 0.01 0.04 0.00 0.00 0.00 0.00 14:05:01 ens3 739.73 540.06 5035.99 97.71 0.00 0.00 0.00 0.00 14:05:01 lo 159.12 159.12 81.59 81.59 0.00 0.00 0.00 0.00 14:06:01 vetha31a020b 8.25 9.88 3.21 3.29 0.00 0.00 0.00 0.00 14:06:01 veth29f44f6d 0.15 0.53 0.01 0.04 0.00 0.00 0.00 0.00 14:06:01 vetha2fc5f82 3.32 3.92 0.33 0.75 0.00 0.00 0.00 0.00 14:06:01 ens3 582.99 521.08 7164.67 40.70 0.00 0.00 0.00 0.00 14:07:01 vetha31a020b 7.28 8.37 2.78 1.70 0.00 0.00 0.00 0.00 14:07:01 veth29f44f6d 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 14:07:01 vetha2fc5f82 3.03 3.37 0.28 0.29 0.00 0.00 0.00 0.00 14:07:01 ens3 1.05 0.93 0.75 0.50 0.00 0.00 0.00 0.00 14:08:01 vetha31a020b 7.22 8.43 2.77 1.71 0.00 0.00 0.00 0.00 14:08:01 veth29f44f6d 0.02 0.05 0.00 0.00 0.00 0.00 0.00 0.00 14:08:01 vetha2fc5f82 3.10 3.22 0.29 0.28 0.00 0.00 0.00 0.00 14:08:01 ens3 87.52 75.67 1294.33 12.12 0.00 0.00 0.00 0.00 Average: vetha31a020b 5.71 6.79 2.19 1.69 0.00 0.00 0.00 0.00 Average: veth29f44f6d 0.05 0.17 0.00 0.01 0.00 0.00 0.00 0.00 Average: vetha2fc5f82 2.39 2.75 0.23 0.34 0.00 0.00 0.00 0.00 Average: ens3 352.82 284.44 3373.93 37.76 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-46250) 09/16/25 _x86_64_ (8 CPU) 14:03:40 LINUX RESTART (8 CPU) 14:04:01 CPU %user %nice %system %iowait %steal %idle 14:05:01 all 10.48 0.72 2.93 2.97 0.06 82.85 14:05:01 0 8.14 0.00 2.55 1.74 0.05 87.52 14:05:01 1 10.74 0.00 2.79 1.47 0.05 84.95 14:05:01 2 12.53 0.00 3.02 4.70 0.07 79.68 14:05:01 3 8.54 2.32 2.79 5.99 0.07 80.30 14:05:01 4 10.94 0.00 2.71 1.34 0.05 84.96 14:05:01 5 9.93 3.41 3.14 3.37 0.07 80.09 14:05:01 6 9.09 0.00 2.77 0.42 0.05 87.68 14:05:01 7 13.97 0.00 3.63 4.75 0.07 77.59 14:06:01 all 39.56 0.00 7.42 3.33 0.11 49.58 14:06:01 0 39.15 0.00 7.03 1.43 0.12 52.28 14:06:01 1 38.93 0.00 7.29 2.12 0.12 51.54 14:06:01 2 38.71 0.00 8.86 11.27 0.14 41.02 14:06:01 3 39.77 0.00 7.27 4.49 0.12 48.35 14:06:01 4 38.84 0.00 7.05 1.36 0.10 52.65 14:06:01 5 40.56 0.00 7.35 1.85 0.12 50.13 14:06:01 6 41.01 0.00 7.15 0.79 0.12 50.92 14:06:01 7 39.47 0.00 7.38 3.33 0.10 49.72 14:07:01 all 37.92 0.00 5.53 1.94 0.10 54.52 14:07:01 0 41.64 0.00 5.90 1.26 0.10 51.11 14:07:01 1 36.93 0.00 6.20 4.77 0.10 52.01 14:07:01 2 36.77 0.00 5.63 1.78 0.08 55.73 14:07:01 3 36.71 0.00 5.46 2.51 0.08 55.23 14:07:01 4 40.07 0.00 5.36 0.17 0.10 54.30 14:07:01 5 41.63 0.00 5.18 0.39 0.10 52.70 14:07:01 6 35.66 0.00 5.60 0.07 0.08 58.60 14:07:01 7 33.96 0.00 4.88 4.56 0.12 56.49 14:08:01 all 9.95 0.00 1.78 1.20 0.06 87.00 14:08:01 0 5.75 0.00 1.34 0.08 0.05 92.78 14:08:01 1 20.17 0.00 2.32 1.98 0.08 75.45 14:08:01 2 4.26 0.00 1.56 0.27 0.07 93.85 14:08:01 3 13.65 0.00 2.04 4.99 0.07 79.26 14:08:01 4 9.75 0.00 1.94 0.10 0.07 88.14 14:08:01 5 6.50 0.00 1.68 1.83 0.05 89.94 14:08:01 6 15.68 0.00 2.12 0.18 0.08 81.93 14:08:01 7 3.91 0.00 1.30 0.18 0.03 94.57 Average: all 24.42 0.18 4.41 2.36 0.08 68.55 Average: 0 23.60 0.00 4.19 1.13 0.08 71.01 Average: 1 26.64 0.00 4.64 2.58 0.09 66.05 Average: 2 23.01 0.00 4.76 4.49 0.09 67.66 Average: 3 24.62 0.58 4.38 4.50 0.08 65.84 Average: 4 24.83 0.00 4.25 0.74 0.08 70.09 Average: 5 24.63 0.85 4.33 1.86 0.08 68.24 Average: 6 25.32 0.00 4.40 0.37 0.08 69.83 Average: 7 22.76 0.00 4.29 3.20 0.08 69.68