---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6308 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/9d609b23b35375444b6c3f88ebdedf5e4453cfc497fbf68ffe9bb7e0c1f10dab/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/8060335f348bca0300e8c46619afa5292854085e61601532e0eee0f589af16e3/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/4600281298044526c5b6aa0932cf68eb10c35cf861c75cd16b4e32bb99a11b0d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/8e60501ec13fb368c05e81bbbef88df944d6a8322d9c1ba612927a99d47f8967/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/53c4a56c75e0d09ef83a997313f500787aff55e0cac874c1f75032ac99334855/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1533 24204 1 6428 30176 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:8a:ec:ef brd ff:ff:ff:ff:ff:ff inet 10.30.106.120/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86075sec preferred_lft 86075sec inet6 fe80::f816:3eff:fe8a:ecef/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:d7:b7:38:25 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:d7ff:feb7:3825/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether b6:b2:69:f0:16:6e 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::b4b2:69ff:fef0:166e/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 3a:d6:9c:6c:fb:a7 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::38d6:9cff:fe6c:fba7/64 scope link valid_lft forever preferred_lft forever 7: vethb648fdbc@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 6e:71:8e:93:7c:ac brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::6c71:8eff:fe93:7cac/64 scope link valid_lft forever preferred_lft forever 8: veth04c439fb@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether b6:6b:86:b4:c6:5d brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::b46b:86ff:feb4:c65d/64 scope link valid_lft forever preferred_lft forever 9: vethd54ffe20@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 2e:8f:c6:34:2d:b2 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::2c8f:c6ff:fe34:2db2/64 scope link valid_lft forever preferred_lft forever 13: veth4666c9c2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:1a:f7:27:3d:b2 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::1c1a:f7ff:fe27:3db2/64 scope link valid_lft forever preferred_lft forever 14: veth5ad38d89@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ea:17:5e:02:0f:d4 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::e817:5eff:fe02:fd4/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6308) 10/29/26 _x86_64_ (8 CPU) 17:06:34 LINUX RESTART (8 CPU) 17:07:01 tps rtps wtps bread/s bwrtn/s 17:08:01 609.08 100.12 508.97 4348.74 167838.03 17:09:01 121.78 0.02 121.76 0.13 83176.94 17:10:01 145.64 3.53 142.11 479.39 86931.24 17:11:01 117.80 20.40 97.40 765.61 36894.78 Average: 248.58 31.02 217.56 1398.47 93710.25 17:07:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:08:01 26861228 31083912 6077992 18.45 113540 4246784 2695268 8.18 1996560 3528568 234244 17:09:01 25620592 30973736 7318628 22.22 125628 5298300 2872444 8.72 2734976 3955552 556512 17:10:01 25691456 31055824 7247764 22.00 133396 5392936 2912160 8.84 2274244 4441532 767400 17:11:01 24994760 30877952 7944460 24.12 145432 5857784 3456432 10.49 2607320 4752080 204068 Average: 25792009 30997856 7147211 21.70 129499 5198951 2984076 9.06 2403275 4169433 440556 17:07:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 17:08:01 lo 203.72 203.72 157.65 157.65 0.00 0.00 0.00 0.00 17:08:01 docker0 87.17 143.19 7.39 1446.36 0.00 0.00 0.00 0.00 17:08:01 veth4bb751fe 12.98 14.85 9.24 68.87 0.00 0.00 0.00 0.01 17:08:01 vethd54ffe20 2.63 3.48 0.64 1.34 0.00 0.00 0.00 0.00 17:09:01 lo 27.06 27.06 15.92 15.92 0.00 0.00 0.00 0.00 17:09:01 docker0 13.36 19.81 1.17 47.99 0.00 0.00 0.00 0.00 17:09:01 vethd54ffe20 7.47 9.08 2.46 1.51 0.00 0.00 0.00 0.00 17:09:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:10:01 lo 16.41 16.41 4.19 4.19 0.00 0.00 0.00 0.00 17:10:01 docker0 0.05 0.08 0.00 0.01 0.00 0.00 0.00 0.00 17:10:01 vethd54ffe20 7.18 8.30 2.12 0.98 0.00 0.00 0.00 0.00 17:10:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:11:01 lo 44.08 44.08 17.42 17.42 0.00 0.00 0.00 0.00 17:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:11:01 vethd54ffe20 7.18 8.60 2.14 1.19 0.00 0.00 0.00 0.00 17:11:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 72.82 72.82 48.79 48.79 0.00 0.00 0.00 0.00 Average: docker0 25.15 40.77 2.14 373.59 0.00 0.00 0.00 0.00 Average: vethd54ffe20 6.12 7.37 1.84 1.26 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-6308) 10/29/26 _x86_64_ (8 CPU) 17:06:34 LINUX RESTART (8 CPU) 17:07:01 CPU %user %nice %system %iowait %steal %idle 17:08:01 all 16.87 0.57 5.30 5.10 0.02 72.13 17:08:01 0 16.75 0.02 4.90 2.99 0.03 75.31 17:08:01 1 19.67 0.00 4.90 3.03 0.03 72.36 17:08:01 2 16.49 0.00 5.02 8.89 0.02 69.59 17:08:01 3 14.43 1.50 4.88 3.06 0.02 76.11 17:08:01 4 15.77 0.00 5.22 5.93 0.02 73.06 17:08:01 5 16.52 0.00 5.64 1.97 0.02 75.85 17:08:01 6 20.54 0.00 5.30 9.86 0.03 64.27 17:08:01 7 14.76 3.02 6.60 5.08 0.02 70.52 17:09:01 all 47.38 0.00 6.00 1.23 0.03 45.37 17:09:01 0 48.34 0.00 5.95 2.11 0.02 43.59 17:09:01 1 50.60 0.00 5.87 0.96 0.02 42.56 17:09:01 2 45.02 0.00 6.34 1.53 0.03 47.07 17:09:01 3 46.61 0.00 6.23 1.65 0.03 45.47 17:09:01 4 50.31 0.00 6.01 0.91 0.02 42.75 17:09:01 5 45.58 0.00 5.80 1.46 0.03 47.13 17:09:01 6 46.58 0.00 6.15 0.79 0.02 46.46 17:09:01 7 46.03 0.00 5.62 0.44 0.03 47.88 17:10:01 all 39.33 0.20 7.40 1.47 0.02 51.58 17:10:01 0 39.22 0.00 8.08 1.46 0.03 51.20 17:10:01 1 40.01 0.00 7.29 2.75 0.03 49.91 17:10:01 2 38.57 0.30 6.58 0.47 0.03 54.04 17:10:01 3 39.60 0.00 7.28 0.08 0.03 53.00 17:10:01 4 39.11 0.00 7.02 0.34 0.03 53.49 17:10:01 5 39.63 0.00 7.29 3.45 0.02 49.60 17:10:01 6 38.17 0.00 8.62 0.20 0.02 53.00 17:10:01 7 40.35 1.28 7.01 2.95 0.02 48.39 17:11:01 all 7.74 0.00 1.71 1.02 0.02 89.51 17:11:01 0 4.15 0.00 1.69 1.36 0.02 92.79 17:11:01 1 2.41 0.00 1.39 0.99 0.02 95.19 17:11:01 2 14.05 0.00 2.09 1.66 0.02 82.18 17:11:01 3 3.06 0.00 1.90 0.52 0.00 94.52 17:11:01 4 9.22 0.00 1.57 0.50 0.02 88.69 17:11:01 5 13.89 0.00 2.24 2.51 0.03 81.34 17:11:01 6 10.86 0.00 1.74 0.64 0.02 86.75 17:11:01 7 4.33 0.00 1.09 0.02 0.02 94.54 Average: all 27.80 0.19 5.10 2.20 0.02 64.68 Average: 0 27.07 0.00 5.15 1.98 0.03 65.77 Average: 1 28.15 0.00 4.86 1.93 0.03 65.03 Average: 2 28.50 0.08 5.00 3.14 0.03 63.26 Average: 3 25.92 0.37 5.07 1.33 0.02 67.29 Average: 4 28.58 0.00 4.95 1.92 0.02 64.53 Average: 5 28.91 0.00 5.24 2.35 0.03 63.48 Average: 6 29.02 0.00 5.45 2.87 0.02 62.64 Average: 7 26.28 1.07 5.06 2.11 0.02 65.45