---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6684 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 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/ff2b028b28c0bee331f55fad2673f33aa4889df0645ae3f0e582a3288d7c40da/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1d5b29bd06cb24f37f5bdea33d62933161fd9fdb4e8222ebc7ce624fc7c9f331/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/7456adb3110435c1da4534ffa34ee265aacd40bcf5e80d289c3f6acdfcdb3e46/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/8a77a3af29e9c47d355c290199443bbf6e1324d9f448744bc8a25c967a45444a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1ea82108248d84b16330ac9bda5bae0f57d74e6d58a21378d1646ccb833b6726/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1508 24229 1 6428 30201 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:63:64:45 brd ff:ff:ff:ff:ff:ff inet 10.30.107.212/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86059sec preferred_lft 86059sec inet6 fe80::f816:3eff:fe63:6445/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:ac:b3:55:cf 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:acff:feb3:55cf/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 16:80:de:6c:49:cb 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::1480:deff:fe6c:49cb/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether c6:ae:a1:1d:5d:5d 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::c4ae:a1ff:fe1d:5d5d/64 scope link valid_lft forever preferred_lft forever 7: veth5130981e@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:4d:61:44:db:ca brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::304d:61ff:fe44:dbca/64 scope link valid_lft forever preferred_lft forever 8: veth8fe32f5a@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether f2:37:f9:eb:a0:46 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::f037:f9ff:feeb:a046/64 scope link valid_lft forever preferred_lft forever 10: veth3cbdf6c1@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 8a:f0:ae:e2:0e:ec brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::88f0:aeff:fee2:eec/64 scope link valid_lft forever preferred_lft forever 11: veth14964990@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 7a:25:bb:ce:50:4d brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::7825:bbff:fece:504d/64 scope link valid_lft forever preferred_lft forever 12: veth2d1e7047@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether da:de:dd:50:c0:7c brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::d8de:ddff:fe50:c07c/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-6684) 10/30/26 _x86_64_ (8 CPU) 21:29:30 LINUX RESTART (8 CPU) 21:30:01 tps rtps wtps bread/s bwrtn/s 21:31:01 562.57 85.19 477.39 3829.76 165675.32 21:32:01 170.19 0.03 170.16 0.27 84234.72 21:33:01 117.68 3.27 114.41 442.73 66876.59 21:34:01 122.70 20.56 102.13 789.47 55309.98 21:35:01 86.85 1.03 85.82 72.65 10612.36 Average: 212.00 22.02 189.98 1026.94 76542.05 21:30:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 21:31:01 26717852 31077452 6221368 18.89 118804 4361052 2729852 8.29 2029220 3615160 691704 21:32:01 25267836 30704356 7671384 23.29 125492 5379676 3274460 9.94 2607048 4430896 620608 21:33:01 26466448 31064184 6472772 19.65 129200 4658744 2632036 7.99 2221876 3744740 0 21:34:01 25237832 30911920 7701388 23.38 138992 5673120 3412780 10.36 2523620 4607340 49836 21:35:01 24817216 30931304 8122004 24.66 146656 6062980 3421112 10.39 2519864 4986908 233624 Average: 25701437 30937843 7237783 21.97 131829 5227114 3094048 9.39 2380326 4277009 319154 21:30:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 21:31:01 lo 214.03 214.03 167.29 167.29 0.00 0.00 0.00 0.00 21:31:01 cni0 34.83 32.93 20.44 91.83 0.00 0.00 0.78 0.00 21:31:01 veth3cbdf6c1 4.98 6.28 1.53 2.03 0.00 0.00 0.00 0.00 21:31:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:32:01 lo 14.36 14.36 5.37 5.37 0.00 0.00 0.00 0.00 21:32:01 cni0 10.76 12.23 2.15 1.44 0.00 0.00 0.17 0.00 21:32:01 veth3cbdf6c1 6.43 7.70 1.91 0.98 0.00 0.00 0.00 0.00 21:32:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:33:01 lo 13.40 13.40 3.90 3.90 0.00 0.00 0.00 0.00 21:33:01 cni0 11.56 13.56 2.37 1.49 0.00 0.00 0.08 0.00 21:33:01 veth3cbdf6c1 7.03 8.55 2.12 0.99 0.00 0.00 0.00 0.00 21:33:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:34:01 lo 44.19 44.19 16.42 16.42 0.00 0.00 0.00 0.00 21:34:01 cni0 12.28 13.73 2.42 1.91 0.00 0.00 0.10 0.00 21:34:01 veth3cbdf6c1 7.18 8.68 2.14 1.11 0.00 0.00 0.00 0.00 21:34:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:35:01 lo 20.71 20.71 5.87 5.87 0.00 0.00 0.00 0.00 21:35:01 cni0 11.93 13.30 2.40 1.56 0.00 0.00 0.07 0.00 21:35:01 veth3cbdf6c1 7.35 8.42 2.15 1.07 0.00 0.00 0.00 0.00 21:35:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 61.34 61.34 39.77 39.77 0.00 0.00 0.00 0.00 Average: cni0 16.27 17.15 5.96 19.65 0.00 0.00 0.24 0.00 Average: veth3cbdf6c1 6.60 7.93 1.97 1.24 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-6684) 10/30/26 _x86_64_ (8 CPU) 21:29:30 LINUX RESTART (8 CPU) 21:30:01 CPU %user %nice %system %iowait %steal %idle 21:31:01 all 15.63 0.75 5.83 2.92 0.01 74.86 21:31:01 0 16.73 0.00 5.42 1.33 0.02 76.50 21:31:01 1 15.30 0.00 6.26 2.74 0.00 75.70 21:31:01 2 19.88 2.82 7.09 4.01 0.02 66.19 21:31:01 3 15.63 1.69 5.28 3.69 0.02 73.68 21:31:01 4 12.80 1.45 5.80 3.66 0.00 76.29 21:31:01 5 14.13 0.00 5.40 2.33 0.00 78.14 21:31:01 6 15.11 0.00 5.38 2.61 0.00 76.90 21:31:01 7 15.47 0.00 6.01 2.93 0.00 75.59 21:32:01 all 50.08 0.00 6.64 0.34 0.02 42.92 21:32:01 0 53.33 0.00 7.01 0.15 0.02 39.50 21:32:01 1 49.06 0.00 6.85 0.00 0.02 44.08 21:32:01 2 50.08 0.00 6.47 1.02 0.02 42.42 21:32:01 3 50.07 0.00 6.33 0.22 0.02 43.37 21:32:01 4 53.92 0.00 6.58 0.08 0.02 39.40 21:32:01 5 46.39 0.00 6.69 1.03 0.02 45.87 21:32:01 6 47.27 0.00 6.74 0.00 0.02 45.97 21:32:01 7 50.54 0.00 6.46 0.27 0.02 42.71 21:33:01 all 41.87 0.26 8.60 0.69 0.02 48.55 21:33:01 0 42.00 0.00 8.21 1.89 0.00 47.90 21:33:01 1 45.66 0.00 8.63 0.12 0.03 45.56 21:33:01 2 43.90 0.00 9.40 0.03 0.02 46.65 21:33:01 3 40.30 0.00 8.28 2.81 0.03 48.58 21:33:01 4 41.70 0.00 8.25 0.13 0.03 49.88 21:33:01 5 40.58 2.10 8.93 0.44 0.02 47.94 21:33:01 6 40.16 0.00 8.65 0.00 0.02 51.17 21:33:01 7 40.67 0.00 8.44 0.12 0.03 50.74 21:34:01 all 8.77 0.00 3.21 0.82 0.01 87.20 21:34:01 0 8.27 0.00 4.00 1.14 0.02 86.57 21:34:01 1 8.39 0.00 2.98 0.61 0.00 88.03 21:34:01 2 7.00 0.00 2.86 0.20 0.00 89.94 21:34:01 3 6.34 0.00 2.98 1.51 0.00 89.17 21:34:01 4 13.15 0.00 3.43 2.14 0.00 81.28 21:34:01 5 11.63 0.00 2.98 0.55 0.02 84.81 21:34:01 6 8.22 0.00 3.46 0.12 0.02 88.18 21:34:01 7 7.15 0.00 2.97 0.25 0.00 89.62 21:35:01 all 11.25 0.00 1.45 0.45 0.01 86.83 21:35:01 0 20.69 0.00 1.74 0.27 0.00 77.31 21:35:01 1 5.72 0.00 1.34 0.08 0.02 92.84 21:35:01 2 21.68 0.00 1.94 0.47 0.00 75.91 21:35:01 3 3.77 0.00 1.04 0.18 0.02 94.99 21:35:01 4 12.59 0.00 1.57 1.55 0.00 84.29 21:35:01 5 4.03 0.00 0.99 0.28 0.00 94.70 21:35:01 6 15.66 0.00 1.72 0.72 0.03 81.87 21:35:01 7 5.85 0.00 1.22 0.08 0.02 92.82 Average: all 25.52 0.20 5.14 1.04 0.01 68.08 Average: 0 28.20 0.00 5.27 0.96 0.01 65.56 Average: 1 24.84 0.00 5.21 0.71 0.01 69.23 Average: 2 28.50 0.56 5.55 1.15 0.01 64.23 Average: 3 23.23 0.34 4.78 1.68 0.02 69.95 Average: 4 26.84 0.29 5.12 1.51 0.01 66.23 Average: 5 23.34 0.42 5.00 0.92 0.01 70.31 Average: 6 25.30 0.00 5.19 0.69 0.02 68.81 Average: 7 23.93 0.00 5.02 0.73 0.01 70.31