---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-1822 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/3e687ec9504d1bdc25255f33fe660547ba9fc54aa18113131744d2a726977e42/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/ae8f60b886b500b4594d5b1355cb0fb4be07d3ca4244e9c793c7e89b8af52192/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/4a487d4d4307af88da60d4a8eab3b534372d9c6863ef65e9d3dabbe015fd9888/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/ffd9000f9fb8d6e8e899e7ed943697437fcb9c32bbbdf3449c8eecde6588f994/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/67c105fcdbd3ca2b4e6494a26880b4ec6e3e4c8d09ae431ed0ea8aab44377d68/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1547 24185 1 6434 30162 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:df:78:2b brd ff:ff:ff:ff:ff:ff inet 10.30.107.137/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86085sec preferred_lft 86085sec inet6 fe80::f816:3eff:fedf:782b/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:54:4c:56:14 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::42:54ff:fe4c:5614/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 3a:51:1e:cb:34:30 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::3851:1eff:fecb:3430/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 76:9f:03:55:7e:69 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::749f:3ff:fe55:7e69/64 scope link valid_lft forever preferred_lft forever 7: veth238cdd74@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 7e:53:5a:f8:f4:a9 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::7c53:5aff:fef8:f4a9/64 scope link valid_lft forever preferred_lft forever 8: veth2d55790e@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether c2:ab:ff:2a:6c:63 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::c0ab:ffff:fe2a:6c63/64 scope link valid_lft forever preferred_lft forever 10: vethff2e9ebd@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ba:05:fa:47:c2:32 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::b805:faff:fe47:c232/64 scope link valid_lft forever preferred_lft forever 11: veth56c31747@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 02:3c:3f:34:3f:46 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::3c:3fff:fe34:3f46/64 scope link valid_lft forever preferred_lft forever 12: veth1257eb53@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ee:80:3f:28:ac:19 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::ec80:3fff:fe28:ac19/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-1822) 09/16/26 _x86_64_ (8 CPU) 06:59:25 LINUX RESTART (8 CPU) 07:00:01 tps rtps wtps bread/s bwrtn/s 07:01:01 523.01 83.75 439.26 3684.99 162946.31 07:02:01 195.03 0.03 195.00 0.27 82422.66 07:03:01 175.75 3.88 171.87 518.98 90358.41 07:04:01 98.18 20.43 77.75 767.61 12183.84 Average: 248.00 27.02 220.97 1242.96 86977.80 07:00:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:01:01 26165664 30813176 6773556 20.56 130188 4627916 3779944 11.48 2498452 3684128 854688 07:02:01 25112536 30859360 7826684 23.76 134508 5677040 3755356 11.40 3021348 4166140 739040 07:03:01 25505676 30977712 7433544 22.57 139672 5492792 3257652 9.89 2334592 4556248 61348 07:04:01 24991436 30906748 7947784 24.13 149848 5891564 3292676 10.00 2523272 4841216 189764 Average: 25443828 30889249 7495392 22.76 138554 5422328 3521407 10.69 2594416 4311933 461210 07:00:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 07:01:01 ens3 720.71 437.68 11680.97 40.32 0.00 0.00 0.00 0.00 07:01:01 veth56c31747 0.13 0.42 0.01 0.03 0.00 0.00 0.00 0.00 07:01:01 lo 222.36 222.36 173.31 173.31 0.00 0.00 0.00 0.00 07:01:01 veth238cdd74 5.27 6.85 1.66 2.29 0.00 0.00 0.00 0.00 07:02:01 ens3 7.68 6.58 19.62 0.82 0.00 0.00 0.00 0.00 07:02:01 veth56c31747 0.03 0.15 0.00 0.01 0.00 0.00 0.00 0.00 07:02:01 lo 12.41 12.41 4.24 4.24 0.00 0.00 0.00 0.00 07:02:01 veth238cdd74 6.57 7.97 1.95 0.93 0.00 0.00 0.00 0.00 07:03:01 ens3 288.22 158.31 5687.31 14.32 0.00 0.00 0.00 0.00 07:03:01 veth56c31747 0.02 0.08 0.00 0.01 0.00 0.00 0.00 0.00 07:03:01 lo 21.21 21.21 6.12 6.12 0.00 0.00 0.00 0.00 07:03:01 veth238cdd74 7.17 8.33 2.14 0.98 0.00 0.00 0.00 0.00 07:04:01 ens3 103.75 64.47 1436.87 11.38 0.00 0.00 0.00 0.00 07:04:01 veth56c31747 0.00 0.10 0.00 0.01 0.00 0.00 0.00 0.00 07:04:01 lo 40.99 40.99 15.59 15.59 0.00 0.00 0.00 0.00 07:04:01 veth238cdd74 7.38 8.60 2.15 1.19 0.00 0.00 0.00 0.00 Average: ens3 280.09 166.76 4706.19 16.71 0.00 0.00 0.00 0.00 Average: veth56c31747 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 Average: lo 74.25 74.25 49.81 49.81 0.00 0.00 0.00 0.00 Average: veth238cdd74 6.59 7.94 1.97 1.35 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-1822) 09/16/26 _x86_64_ (8 CPU) 06:59:25 LINUX RESTART (8 CPU) 07:00:01 CPU %user %nice %system %iowait %steal %idle 07:01:01 all 24.40 1.11 6.32 3.43 0.07 64.66 07:01:01 0 22.27 0.00 6.24 2.34 0.07 69.09 07:01:01 1 27.98 0.00 5.92 6.26 0.08 59.76 07:01:01 2 24.18 0.00 6.07 3.01 0.08 66.66 07:01:01 3 25.51 2.51 6.87 4.21 0.07 60.83 07:01:01 4 23.99 1.90 6.24 3.35 0.07 64.45 07:01:01 5 25.57 4.47 6.98 3.53 0.08 59.36 07:01:01 6 22.68 0.02 5.88 1.03 0.05 70.35 07:01:01 7 23.07 0.00 6.35 3.74 0.08 66.75 07:02:01 all 54.09 0.00 6.76 0.54 0.06 38.56 07:02:01 0 61.12 0.00 7.53 0.10 0.07 31.19 07:02:01 1 54.14 0.00 6.86 0.18 0.05 38.77 07:02:01 2 51.58 0.00 6.45 0.05 0.03 41.89 07:02:01 3 52.48 0.00 7.15 1.62 0.05 38.69 07:02:01 4 56.24 0.00 6.83 0.34 0.05 36.54 07:02:01 5 52.55 0.00 5.87 0.37 0.05 41.16 07:02:01 6 51.34 0.00 7.20 1.05 0.05 40.36 07:02:01 7 53.28 0.00 6.20 0.59 0.05 39.88 07:03:01 all 16.22 0.21 4.37 1.21 0.06 77.93 07:03:01 0 14.34 0.00 4.30 1.43 0.08 79.85 07:03:01 1 14.67 1.68 3.73 2.64 0.05 77.23 07:03:01 2 16.26 0.00 4.12 2.35 0.07 77.20 07:03:01 3 16.97 0.00 4.15 0.05 0.07 78.76 07:03:01 4 15.80 0.00 4.94 0.20 0.07 79.00 07:03:01 5 13.66 0.00 5.06 0.39 0.07 80.83 07:03:01 6 18.76 0.00 4.69 0.07 0.07 76.41 07:03:01 7 19.34 0.00 3.89 2.51 0.08 74.17 07:04:01 all 10.03 0.00 1.51 0.63 0.07 87.77 07:04:01 0 3.88 0.00 1.10 0.07 0.07 94.88 07:04:01 1 12.32 0.00 1.59 0.40 0.07 85.63 07:04:01 2 3.36 0.00 1.06 0.10 0.05 95.43 07:04:01 3 9.70 0.00 1.52 1.25 0.07 87.46 07:04:01 4 15.73 0.00 1.45 0.25 0.05 82.51 07:04:01 5 9.53 0.00 1.52 0.72 0.05 88.18 07:04:01 6 14.82 0.00 2.08 1.51 0.05 81.54 07:04:01 7 10.84 0.00 1.82 0.74 0.08 86.52 Average: all 26.17 0.33 4.74 1.45 0.06 67.25 Average: 0 25.38 0.00 4.79 0.98 0.07 68.78 Average: 1 27.24 0.42 4.52 2.36 0.06 65.39 Average: 2 23.87 0.00 4.42 1.38 0.06 70.27 Average: 3 26.13 0.63 4.92 1.78 0.06 66.48 Average: 4 27.95 0.47 4.86 1.03 0.06 65.63 Average: 5 25.30 1.11 4.85 1.25 0.06 67.42 Average: 6 26.87 0.00 4.96 0.91 0.05 67.20 Average: 7 26.64 0.00 4.56 1.90 0.08 66.82