---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-12702 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/bd0cf91f44392f59dc5b189f228583523471c0b693ed1008fdf1358491b32ffa/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1cf86d7e69581f4defde3c3872d6158ab56b5e25bdfa00cb58e32e82229c7d76/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/859c7d521ebee4099ebcb9974ff807180dcbc19ebc600eab56691e3e22fb841f/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/25c36c02e297b5b6617eeed863aaac80b0b9699641f0633c182d5136cc528598/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/82a674ef4efa266af6075cc1155cf26099fbddd70876013469a32b327dd810d1/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1525 24199 1 6441 30185 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:27:ea:f7 brd ff:ff:ff:ff:ff:ff inet 10.30.106.212/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86098sec preferred_lft 86098sec inet6 fe80::f816:3eff:fe27:eaf7/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:85:60:d2:ad 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::42:85ff:fe60:d2ad/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether e6:12:ff:34:32:25 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::e412:ffff:fe34:3225/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 9a:8f:54:94:9a:03 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::988f:54ff:fe94:9a03/64 scope link valid_lft forever preferred_lft forever 6: vethe4e62ad5@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 02:b4:1d:be:25:4a brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::b4:1dff:febe:254a/64 scope link valid_lft forever preferred_lft forever 7: veth0fded25f@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6a:30:94:a0:75:a8 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::6830:94ff:fea0:75a8/64 scope link valid_lft forever preferred_lft forever 8: vethe0ed8522@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether de:ec:9b:ce:db:73 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::dcec:9bff:fece:db73/64 scope link valid_lft forever preferred_lft forever 13: veth0ad0ab56@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 26:dc:6d:6d:b8:49 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::24dc:6dff:fe6d:b849/64 scope link valid_lft forever preferred_lft forever 14: veth825e6c92@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:91:45:f2:ba:29 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::6091:45ff:fef2:ba29/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-12702) 07/14/26 _x86_64_ (8 CPU) 09:36:01 LINUX RESTART (8 CPU) 09:37:02 tps rtps wtps bread/s bwrtn/s 09:38:01 514.18 4.15 510.03 411.18 146285.04 09:39:01 217.21 3.53 213.68 487.39 82650.09 09:40:01 118.23 20.46 97.77 771.87 37157.94 09:41:01 100.18 2.13 98.05 125.85 9952.07 Average: 236.30 7.58 228.71 449.23 68688.02 09:37:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:38:01 25931484 30919696 7007736 21.27 136328 4939460 3036784 9.22 2321716 4070352 589132 09:39:01 26505396 31105876 6433824 19.53 140004 4655064 2672112 8.11 2202404 3729316 13552 09:40:01 25072456 30875092 7866764 23.88 150216 5794044 3343140 10.15 2562356 4736220 119304 09:41:01 24798644 30927540 8140576 24.71 154896 6080924 3280480 9.96 2519364 5017352 218268 Average: 25576995 30957051 7362225 22.35 145361 5367373 3083129 9.36 2401460 4388310 235064 09:37:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:38:01 vethe0ed8522 3.27 4.29 0.33 0.77 0.00 0.00 0.00 0.00 09:38:01 veth0fded25f 8.32 10.64 2.56 2.62 0.00 0.00 0.00 0.00 09:38:01 docker0 160.57 242.72 12.57 1638.71 0.00 0.00 0.00 0.00 09:38:01 veth64710dd 160.57 242.87 14.77 1638.72 0.00 0.00 0.00 0.13 09:39:01 vethe0ed8522 3.05 3.30 0.28 0.29 0.00 0.00 0.00 0.00 09:39:01 veth0fded25f 7.05 8.23 2.09 0.97 0.00 0.00 0.00 0.00 09:39:01 docker0 6.00 7.53 0.41 19.02 0.00 0.00 0.00 0.00 09:39:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:40:01 vethe0ed8522 3.20 3.57 0.29 0.41 0.00 0.00 0.00 0.00 09:40:01 veth0fded25f 7.32 8.48 2.15 1.18 0.00 0.00 0.00 0.00 09:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:40:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:41:01 vethe0ed8522 3.07 3.12 0.28 0.27 0.00 0.00 0.00 0.00 09:41:01 veth0fded25f 7.47 8.32 2.16 0.98 0.00 0.00 0.00 0.00 09:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:41:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: vethe0ed8522 3.15 3.56 0.30 0.43 0.00 0.00 0.00 0.00 Average: veth0fded25f 7.53 8.91 2.24 1.43 0.00 0.00 0.00 0.00 Average: docker0 41.14 61.81 3.21 409.31 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-12702) 07/14/26 _x86_64_ (8 CPU) 09:36:01 LINUX RESTART (8 CPU) 09:37:02 CPU %user %nice %system %iowait %steal %idle 09:38:01 all 42.62 0.00 7.67 2.47 0.10 47.14 09:38:01 0 40.45 0.00 8.32 2.23 0.10 48.90 09:38:01 1 41.41 0.00 8.03 3.99 0.10 46.47 09:38:01 2 43.19 0.00 7.72 1.79 0.12 47.17 09:38:01 3 43.87 0.00 7.66 1.17 0.10 47.20 09:38:01 4 40.90 0.00 6.93 3.14 0.10 48.93 09:38:01 5 42.31 0.00 7.63 4.71 0.10 45.24 09:38:01 6 45.44 0.00 8.22 1.53 0.09 44.73 09:38:01 7 43.38 0.00 6.84 1.22 0.09 48.47 09:39:01 all 36.08 0.21 6.00 0.92 0.09 56.70 09:39:01 0 40.53 0.00 5.95 0.22 0.08 53.22 09:39:01 1 34.65 0.15 5.13 0.08 0.10 59.89 09:39:01 2 33.68 0.62 6.17 1.21 0.10 58.22 09:39:01 3 34.95 0.00 5.85 3.37 0.08 55.75 09:39:01 4 35.79 0.00 6.46 0.03 0.08 57.63 09:39:01 5 34.10 0.00 5.95 1.35 0.10 58.49 09:39:01 6 40.38 0.00 6.41 0.08 0.08 53.04 09:39:01 7 34.48 0.93 6.11 0.99 0.10 57.39 09:40:01 all 8.95 0.00 2.33 0.65 0.08 87.99 09:40:01 0 4.62 0.00 2.64 1.12 0.08 91.54 09:40:01 1 12.68 0.00 2.41 0.30 0.08 84.52 09:40:01 2 7.19 0.00 2.82 1.91 0.08 88.00 09:40:01 3 5.98 0.00 2.30 0.22 0.05 91.45 09:40:01 4 8.29 0.00 2.27 0.12 0.08 89.24 09:40:01 5 15.44 0.00 2.38 0.59 0.07 81.53 09:40:01 6 9.06 0.00 2.08 0.17 0.08 88.61 09:40:01 7 8.32 0.00 1.71 0.77 0.07 89.13 09:41:01 all 11.38 0.00 1.22 0.37 0.08 86.96 09:41:01 0 12.67 0.00 1.47 0.55 0.08 85.22 09:41:01 1 12.31 0.00 1.40 0.15 0.07 86.07 09:41:01 2 18.61 0.00 1.40 0.08 0.08 79.82 09:41:01 3 5.85 0.00 0.94 0.08 0.07 93.07 09:41:01 4 9.54 0.00 1.12 1.19 0.07 88.08 09:41:01 5 10.66 0.00 1.32 0.33 0.08 87.60 09:41:01 6 14.34 0.00 1.15 0.42 0.12 83.97 09:41:01 7 7.02 0.00 0.97 0.12 0.08 91.80 Average: all 24.62 0.05 4.28 1.09 0.09 69.87 Average: 0 24.44 0.00 4.56 1.02 0.09 69.89 Average: 1 25.13 0.04 4.21 1.11 0.09 69.42 Average: 2 25.57 0.16 4.51 1.25 0.10 68.42 Average: 3 22.51 0.00 4.16 1.21 0.08 72.04 Average: 4 23.49 0.00 4.17 1.11 0.08 71.14 Average: 5 25.50 0.00 4.30 1.73 0.09 68.39 Average: 6 27.17 0.00 4.44 0.54 0.09 67.76 Average: 7 23.16 0.23 3.89 0.77 0.08 71.86