---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6299 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: 2800.012 BogoMIPS: 5600.02 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/799463567226e4fb89e2186802d1db421bc6f53034f94b432836e23be9e82d00/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1a4756b322a13aa4871ec4e3a77b3af19d83364e7c79788698eda15da3389476/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/2bfe67a5cdb3de9609a20c626dc3b322922b96d502e2708ab31fc2a5e35eacf0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/e7284205512c8f6a8804cffe6742cdc5e26617a5e83b7489cea9ed88c1f154c4/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/62cb92ffeec9f06d95d5c6cd5769147eaefc9754aa0003761ebe009031af1e89/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1527 24213 1 6426 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:30:5d:ce brd ff:ff:ff:ff:ff:ff inet 10.30.107.35/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86082sec preferred_lft 86082sec inet6 fe80::f816:3eff:fe30:5dce/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:c3:5f:85:40 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:c3ff:fe5f:8540/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 72:d8:26:ad:61:83 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::70d8:26ff:fead:6183/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 56:96:d6:ab:be:a6 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::5496:d6ff:feab:bea6/64 scope link valid_lft forever preferred_lft forever 8: veth9287a8a7@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether d2:61:f1:0f:cf:46 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::d061:f1ff:fe0f:cf46/64 scope link valid_lft forever preferred_lft forever 9: vethfcb1a700@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 06:45:20:ca:c8:5c brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::445:20ff:feca:c85c/64 scope link valid_lft forever preferred_lft forever 10: vethe489e2bb@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 36:0d:c9:b7:e6:43 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::340d:c9ff:feb7:e643/64 scope link valid_lft forever preferred_lft forever 13: veth2552bc20@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether aa:6d:64:9d:0a:b7 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::a86d:64ff:fe9d:ab7/64 scope link valid_lft forever preferred_lft forever 14: vethee6e9bc7@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether c2:1a:a2:05:e9:3d brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::c01a:a2ff:fe05:e93d/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-6299) 10/29/26 _x86_64_ (8 CPU) 17:05:11 LINUX RESTART (8 CPU) 17:06:02 tps rtps wtps bread/s bwrtn/s 17:07:01 440.74 56.55 384.19 3149.16 180701.58 17:08:01 101.20 0.03 101.17 0.27 48487.12 17:09:01 192.12 3.77 188.35 515.96 103413.80 17:10:01 105.47 20.41 85.05 766.54 8814.66 Average: 208.91 20.04 188.88 1099.42 84956.18 17:06:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:07:01 25561656 30678572 7377564 22.40 123820 5077560 3491008 10.60 2873352 3883564 1010804 17:08:01 24191128 30967912 8748092 26.56 127028 6671244 2823608 8.57 3425068 4645152 1467200 17:09:01 25405180 30982956 7534040 22.87 133236 5590792 3304552 10.03 2427700 4545024 620 17:10:01 24910036 30873108 8029184 24.38 148360 5925024 3413196 10.36 2580328 4849352 178744 Average: 25017000 30875637 7922220 24.05 133111 5816155 3258091 9.89 2826612 4480773 664342 17:06:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 17:07:01 veth0f3eece 95.98 159.33 9.66 1520.73 0.00 0.00 0.00 0.12 17:07:01 docker0 95.98 159.18 8.34 1520.72 0.00 0.00 0.00 0.00 17:07:01 cni0 38.59 37.25 21.77 93.99 0.00 0.00 0.90 0.00 17:07:01 veth9287a8a7 2.61 3.49 0.27 0.71 0.00 0.00 0.00 0.00 17:08:01 veth0f3eece 0.55 0.57 0.07 0.45 0.00 0.00 0.00 0.00 17:08:01 docker0 0.55 0.55 0.06 0.45 0.00 0.00 0.00 0.00 17:08:01 cni0 11.25 12.61 2.26 1.41 0.00 0.00 0.08 0.00 17:08:01 veth9287a8a7 2.87 3.23 0.27 0.28 0.00 0.00 0.00 0.00 17:09:01 docker0 0.05 0.10 0.00 0.01 0.00 0.00 0.00 0.00 17:09:01 cni0 12.30 13.58 2.43 1.91 0.00 0.00 0.18 0.00 17:09:01 veth9287a8a7 3.15 3.53 0.29 0.40 0.00 0.00 0.00 0.00 17:09:01 vethe489e2bb 20.31 24.79 6.18 4.44 0.00 0.00 0.00 0.00 17:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:10:01 cni0 11.68 13.18 2.38 1.55 0.00 0.00 0.00 0.00 17:10:01 veth9287a8a7 3.03 3.25 0.28 0.28 0.00 0.00 0.00 0.00 17:10:01 vethe489e2bb 7.10 8.33 2.13 1.06 0.00 0.00 0.00 0.00 Average: docker0 23.84 39.46 2.08 375.51 0.00 0.00 0.00 0.00 Average: cni0 18.37 19.08 7.15 24.42 0.00 0.00 0.29 0.00 Average: veth9287a8a7 2.92 3.38 0.28 0.42 0.00 0.00 0.00 0.00 Average: vethe489e2bb 6.88 8.32 2.09 1.38 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6299) 10/29/26 _x86_64_ (8 CPU) 17:05:11 LINUX RESTART (8 CPU) 17:06:02 CPU %user %nice %system %iowait %steal %idle 17:07:01 all 38.43 0.20 7.60 2.78 0.02 50.98 17:07:01 0 37.44 0.00 7.72 2.44 0.02 52.38 17:07:01 1 37.60 0.00 7.65 3.01 0.02 51.72 17:07:01 2 39.66 1.56 8.45 4.13 0.03 46.17 17:07:01 3 38.33 0.00 7.53 2.34 0.02 51.79 17:07:01 4 36.67 0.00 7.72 1.10 0.02 54.50 17:07:01 5 40.49 0.00 7.63 2.22 0.03 49.63 17:07:01 6 38.80 0.00 7.25 3.67 0.02 50.26 17:07:01 7 38.44 0.00 6.82 3.29 0.02 51.43 17:08:01 all 53.96 0.00 8.22 0.36 0.03 37.44 17:08:01 0 52.58 0.00 8.31 0.34 0.03 38.74 17:08:01 1 53.74 0.00 8.18 0.00 0.02 38.07 17:08:01 2 59.51 0.00 8.07 0.07 0.02 32.34 17:08:01 3 52.75 0.00 8.78 1.44 0.03 37.00 17:08:01 4 52.96 0.00 7.71 0.02 0.03 39.29 17:08:01 5 54.95 0.00 8.16 0.10 0.02 36.77 17:08:01 6 52.03 0.00 8.36 0.86 0.02 38.74 17:08:01 7 53.20 0.00 8.14 0.05 0.03 38.57 17:09:01 all 8.13 0.23 3.66 1.33 0.04 86.61 17:09:01 0 9.74 0.00 3.87 2.22 0.02 84.16 17:09:01 1 7.96 1.81 4.52 2.15 0.05 83.51 17:09:01 2 6.62 0.00 3.41 0.60 0.05 89.32 17:09:01 3 7.49 0.00 3.54 1.09 0.05 87.83 17:09:01 4 7.14 0.00 3.35 2.58 0.05 86.88 17:09:01 5 6.28 0.00 4.54 1.46 0.03 87.68 17:09:01 6 6.83 0.00 2.82 0.19 0.05 90.11 17:09:01 7 13.02 0.00 3.20 0.35 0.03 83.40 17:10:01 all 11.23 0.00 1.32 0.60 0.02 86.84 17:10:01 0 11.04 0.00 1.35 0.75 0.02 86.84 17:10:01 1 20.75 0.00 2.02 0.42 0.02 76.80 17:10:01 2 23.23 0.00 1.60 0.37 0.02 74.78 17:10:01 3 3.93 0.00 1.02 0.37 0.02 94.67 17:10:01 4 12.12 0.00 1.11 0.22 0.02 86.54 17:10:01 5 8.99 0.00 1.22 1.61 0.00 88.18 17:10:01 6 5.00 0.00 1.05 0.95 0.02 92.99 17:10:01 7 4.75 0.00 1.19 0.12 0.02 93.93 Average: all 27.87 0.11 5.18 1.26 0.03 65.56 Average: 0 27.64 0.00 5.30 1.43 0.02 65.61 Average: 1 29.96 0.46 5.58 1.38 0.03 62.60 Average: 2 32.21 0.38 5.36 1.28 0.03 60.74 Average: 3 25.54 0.00 5.20 1.30 0.03 67.93 Average: 4 27.20 0.00 4.96 0.97 0.03 66.84 Average: 5 27.61 0.00 5.38 1.34 0.02 65.65 Average: 6 25.56 0.00 4.85 1.40 0.03 68.16 Average: 7 27.27 0.00 4.82 0.94 0.03 66.94