---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-16722 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 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/4c77182cecbefa0c6d408595c3ac644e077cfb63624b5a7861c93263f73f168c/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/747d252f251b5aee6082cd5b5fbb96260ab88b90d2b7a7062d2cc33fc43e3eab/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/add1d2cf4316aab17b21d1b759db350b93542f16d5a1442eb673ceb182a383c9/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/1d00eba90c7d18c5bd3ee337db7b5d60f70619c951e2ecce8dd22ad3cefc9d17/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/230d9b36d661e4a0921584d81b72550a0f3fdd9fa535e6ed7e281d7189bfa425/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1556 24185 1 6425 30154 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:cc:ab:31 brd ff:ff:ff:ff:ff:ff inet 10.30.107.182/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86076sec preferred_lft 86076sec inet6 fe80::f816:3eff:fecc:ab31/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:b4:9a:94:f5 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:b4ff:fe9a:94f5/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 9e:86:43:ea:8d:26 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::9c86:43ff:feea:8d26/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether de:df:d4:a4:0f:e4 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::dcdf:d4ff:fea4:fe4/64 scope link valid_lft forever preferred_lft forever 8: veth0b248c92@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 32:ef:53:85:d1:90 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::30ef:53ff:fe85:d190/64 scope link valid_lft forever preferred_lft forever 9: vethb2e52be4@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 52:67:0c:93:4d:6a brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::5067:cff:fe93:4d6a/64 scope link valid_lft forever preferred_lft forever 10: veth179afe89@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether b2:7f:12:ce:ad:1e brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::b07f:12ff:fece:ad1e/64 scope link valid_lft forever preferred_lft forever 13: veth686a8059@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether f2:13:a5:c4:65:52 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::f013:a5ff:fec4:6552/64 scope link valid_lft forever preferred_lft forever 14: veth78aeb2a9@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ba:2e:e7:7f:6c:71 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::b82e:e7ff:fe7f:6c71/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-16722) 08/31/26 _x86_64_ (8 CPU) 05:55:24 LINUX RESTART (8 CPU) 05:56:02 tps rtps wtps bread/s bwrtn/s 05:57:01 601.41 86.12 515.28 3844.39 175096.17 05:58:01 191.60 0.02 191.59 0.13 68688.44 05:59:01 189.20 3.42 185.79 450.72 94385.47 06:00:01 89.24 20.71 68.52 806.93 10910.05 Average: 266.48 27.32 239.15 1264.85 86905.55 05:56:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:57:01 26489004 30918248 6450208 19.58 128232 4424100 3669444 11.14 2283084 3589776 640924 05:58:01 25237384 30644932 7701828 23.38 134008 5351900 3961544 12.03 3077384 4000240 510700 05:59:01 25581716 30984712 7357496 22.34 139600 5426068 3258552 9.89 2324960 4495644 572 06:00:01 25014224 30871008 7924988 24.06 148956 5838652 3365508 10.22 2552972 4796812 167680 Average: 25580582 30854725 7358630 22.34 137699 5260180 3563762 10.82 2559600 4220618 329969 05:56:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:57:01 veth686a8059 0.14 0.41 0.01 0.03 0.00 0.00 0.00 0.00 05:57:01 docker0 193.07 268.91 14.53 1636.80 0.00 0.00 0.00 0.00 05:57:01 veth0b248c92 0.49 1.37 0.09 0.21 0.00 0.00 0.00 0.00 05:57:01 vethcbf04dd 193.07 269.04 17.17 1636.81 0.00 0.00 0.00 0.13 05:58:01 veth686a8059 0.03 0.17 0.00 0.01 0.00 0.00 0.00 0.00 05:58:01 docker0 4.58 5.90 0.33 18.80 0.00 0.00 0.00 0.00 05:58:01 veth0b248c92 0.15 0.27 0.01 0.03 0.00 0.00 0.00 0.00 05:58:01 vethcbf04dd 4.58 5.93 0.39 18.80 0.00 0.00 0.00 0.00 05:59:01 veth686a8059 0.00 0.07 0.00 0.00 0.00 0.00 0.00 0.00 05:59:01 docker0 0.05 0.10 0.00 0.01 0.00 0.00 0.00 0.00 05:59:01 veth0b248c92 0.15 0.18 0.01 0.02 0.00 0.00 0.00 0.00 05:59:01 cni0 59.41 60.31 26.31 95.00 0.00 0.00 1.02 0.00 06:00:01 veth686a8059 0.02 0.12 0.00 0.01 0.00 0.00 0.00 0.00 06:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:00:01 veth0b248c92 0.13 0.23 0.01 0.03 0.00 0.00 0.00 0.00 06:00:01 cni0 12.21 13.71 2.42 1.99 0.00 0.00 0.12 0.00 Average: veth686a8059 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 Average: docker0 48.83 67.90 3.67 408.82 0.00 0.00 0.00 0.00 Average: veth0b248c92 0.23 0.51 0.03 0.07 0.00 0.00 0.00 0.00 Average: cni0 17.98 18.58 7.21 24.35 0.00 0.00 0.28 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-16722) 08/31/26 _x86_64_ (8 CPU) 05:55:24 LINUX RESTART (8 CPU) 05:56:02 CPU %user %nice %system %iowait %steal %idle 05:57:01 all 19.47 0.78 6.91 3.54 0.01 69.28 05:57:01 0 17.23 3.06 7.34 5.19 0.00 67.17 05:57:01 1 18.77 1.18 6.84 1.42 0.02 71.77 05:57:01 2 18.84 1.53 7.60 5.32 0.02 66.69 05:57:01 3 23.86 0.00 6.52 3.61 0.02 65.99 05:57:01 4 21.00 0.43 6.01 1.61 0.00 70.94 05:57:01 5 21.04 0.00 7.36 3.84 0.02 67.74 05:57:01 6 16.57 0.00 6.16 3.00 0.00 74.27 05:57:01 7 18.49 0.00 7.43 4.37 0.00 69.71 05:58:01 all 53.69 0.00 6.79 0.49 0.02 39.01 05:58:01 0 52.53 0.00 7.15 0.49 0.02 39.82 05:58:01 1 52.25 0.00 7.03 0.37 0.02 40.34 05:58:01 2 53.31 0.00 6.46 0.08 0.03 40.12 05:58:01 3 59.74 0.00 6.84 0.20 0.02 33.20 05:58:01 4 53.00 0.00 6.46 0.03 0.02 40.49 05:58:01 5 53.93 0.00 5.98 0.12 0.02 39.95 05:58:01 6 53.15 0.00 7.67 1.18 0.02 37.98 05:58:01 7 51.68 0.00 6.69 1.43 0.02 40.19 05:59:01 all 31.17 0.24 6.34 1.18 0.01 61.05 05:59:01 0 33.88 0.00 7.24 1.89 0.02 56.97 05:59:01 1 31.31 0.00 5.65 0.56 0.00 62.48 05:59:01 2 31.73 0.12 6.14 1.18 0.03 60.81 05:59:01 3 29.13 0.00 7.09 1.43 0.02 62.33 05:59:01 4 31.74 0.00 5.86 0.56 0.02 61.83 05:59:01 5 30.95 0.64 5.74 0.54 0.02 62.11 05:59:01 6 30.68 0.08 6.82 3.21 0.02 59.19 05:59:01 7 29.92 1.06 6.19 0.08 0.02 62.72 06:00:01 all 8.55 0.00 1.77 0.58 0.01 89.09 06:00:01 0 10.59 0.00 2.12 0.10 0.02 87.17 06:00:01 1 3.88 0.00 1.39 0.60 0.02 94.11 06:00:01 2 5.99 0.00 1.86 0.49 0.00 91.66 06:00:01 3 18.54 0.00 2.30 0.59 0.00 78.58 06:00:01 4 3.25 0.00 1.15 0.66 0.00 94.95 06:00:01 5 5.24 0.00 1.56 0.05 0.00 93.15 06:00:01 6 11.82 0.00 1.81 0.35 0.00 86.02 06:00:01 7 9.07 0.00 1.93 1.84 0.02 87.14 Average: all 28.24 0.25 5.44 1.44 0.01 64.61 Average: 0 28.58 0.75 5.95 1.90 0.01 62.80 Average: 1 26.56 0.29 5.22 0.73 0.01 67.18 Average: 2 27.49 0.41 5.50 1.75 0.02 64.83 Average: 3 32.84 0.00 5.68 1.45 0.01 60.02 Average: 4 27.28 0.11 4.87 0.71 0.01 67.03 Average: 5 27.81 0.16 5.14 1.12 0.01 65.75 Average: 6 28.09 0.02 5.61 1.93 0.01 64.35 Average: 7 27.31 0.27 5.55 1.92 0.01 64.94