---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6302 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/b5b6737f35e19004686ef4c3074a9fd383e066704185d31a1af7c897785b6eab/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/c664f1e376ce5c4c7496925466f3dc3103176eabb9ad38e8a57b32f455cf2751/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/bc2c7d59d012dbf71aec6ecb8e19edc600f36dbf37c879038d7474ff5bd18dcd/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/bf22b8609280b5c99866d3b1c3ba6f998119219b6d4e51154b1546aa40e5b814/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/bda280f74ac9946c1f3268faa4ab2849a658b963feaaf412c944978eb0282047/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1523 24217 1 6425 30187 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:2b:05:0a brd ff:ff:ff:ff:ff:ff inet 10.30.107.72/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86051sec preferred_lft 86051sec inet6 fe80::f816:3eff:fe2b:50a/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:60:5a:85:d2 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::42:60ff:fe5a:85d2/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether d6:6f:a0:f1:e0:c9 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::d46f:a0ff:fef1:e0c9/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 7a:ab:6e:ff:a4:c7 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::78ab:6eff:feff:a4c7/64 scope link valid_lft forever preferred_lft forever 8: vethf5ee130f@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 16:d2:11:9d:bc:51 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::14d2:11ff:fe9d:bc51/64 scope link valid_lft forever preferred_lft forever 9: vethe536e20b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether e2:35:49:52:f4:25 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::e035:49ff:fe52:f425/64 scope link valid_lft forever preferred_lft forever 10: veth45a36325@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:c5:6d:e9:a5:7e brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::1cc5:6dff:fee9:a57e/64 scope link valid_lft forever preferred_lft forever 13: veth552c2e5a@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:cf:4c:48:ee:91 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::1ccf:4cff:fe48:ee91/64 scope link valid_lft forever preferred_lft forever 14: veth8191d96c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 0a:20:3a:47:aa:bb brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::820:3aff:fe47:aabb/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-6302) 10/29/26 _x86_64_ (8 CPU) 17:05:59 LINUX RESTART (8 CPU) 17:06:01 tps rtps wtps bread/s bwrtn/s 17:07:01 292.42 69.94 222.48 4905.98 109373.77 17:08:01 496.62 82.92 413.70 3657.31 180227.39 17:09:01 66.82 0.00 66.82 0.00 39379.04 17:10:01 156.59 3.52 153.07 478.72 101861.82 17:11:01 95.55 20.80 74.75 816.80 11536.48 Average: 221.61 35.44 186.17 1971.82 88478.76 17:06:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:07:01 30158484 31664008 2780736 8.44 41740 1785536 1487536 4.52 854076 1656716 214516 17:08:01 26019196 30850608 6920024 21.01 122500 4804756 3560336 10.81 2548036 3761080 519656 17:09:01 24428092 30756324 8511128 25.84 126504 6240736 3640388 11.05 3413824 4428772 1183308 17:10:01 25606548 31001404 7332672 22.26 133648 5412660 3240656 9.84 2322128 4459236 660 17:11:01 25022128 30880824 7917092 24.04 144572 5832464 3449316 10.47 2559748 4765876 160960 Average: 26246890 31030634 6692330 20.32 113793 4815230 3075646 9.34 2339562 3814336 415820 17:06:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 17:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:07:01 ens3 352.31 268.81 1342.52 75.77 0.00 0.00 0.00 0.00 17:07:01 lo 2.53 2.53 0.25 0.25 0.00 0.00 0.00 0.00 17:08:01 docker0 90.90 144.99 7.98 1493.68 0.00 0.00 0.00 0.00 17:08:01 ens3 551.38 339.64 10783.02 34.12 0.00 0.00 0.00 0.00 17:08:01 veth519d929 90.90 145.12 9.23 1493.69 0.00 0.00 0.00 0.12 17:08:01 cni0 36.89 35.27 20.62 92.22 0.00 0.00 0.85 0.00 17:09:01 docker0 0.58 0.58 0.07 0.45 0.00 0.00 0.00 0.00 17:09:01 ens3 1.27 1.23 0.55 0.11 0.00 0.00 0.00 0.00 17:09:01 veth519d929 0.58 0.62 0.07 0.46 0.00 0.00 0.00 0.00 17:09:01 cni0 10.76 12.30 2.19 1.38 0.00 0.00 0.12 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 ens3 261.46 140.19 5387.13 12.65 0.00 0.00 0.00 0.00 17:10:01 cni0 11.95 13.23 2.40 1.47 0.00 0.00 0.08 0.00 17:10:01 vethf5ee130f 19.53 23.68 5.90 4.17 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 ens3 139.18 86.80 1668.41 12.55 0.00 0.00 0.00 0.00 17:11:01 cni0 12.83 13.55 2.46 1.99 0.00 0.00 0.10 0.00 17:11:01 vethf5ee130f 7.77 8.43 2.18 1.19 0.00 0.00 0.00 0.00 Average: docker0 18.31 29.13 1.61 298.87 0.00 0.00 0.00 0.00 Average: ens3 261.13 167.34 3836.56 27.04 0.00 0.00 0.00 0.00 Average: cni0 14.49 14.87 5.53 19.41 0.00 0.00 0.23 0.00 Average: vethf5ee130f 5.46 6.42 1.62 1.07 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6302) 10/29/26 _x86_64_ (8 CPU) 17:05:59 LINUX RESTART (8 CPU) 17:06:01 CPU %user %nice %system %iowait %steal %idle 17:07:01 all 5.86 0.25 1.37 6.16 0.01 86.36 17:07:01 0 5.60 0.03 1.09 8.39 0.02 84.87 17:07:01 1 3.42 0.00 1.20 1.77 0.00 93.60 17:07:01 2 10.59 0.00 2.21 1.32 0.02 85.86 17:07:01 3 7.71 0.00 1.22 1.45 0.00 89.62 17:07:01 4 5.01 0.00 1.00 3.48 0.00 90.51 17:07:01 5 4.48 0.00 0.97 0.85 0.00 93.70 17:07:01 6 6.80 0.00 2.20 31.05 0.02 59.93 17:07:01 7 3.27 1.97 1.10 1.03 0.02 92.61 17:08:01 all 29.49 0.42 6.84 4.81 0.03 58.41 17:08:01 0 25.82 0.00 7.37 9.54 0.03 57.23 17:08:01 1 28.68 0.00 7.22 6.88 0.03 57.18 17:08:01 2 28.10 0.00 6.27 5.00 0.02 60.62 17:08:01 3 29.11 1.55 7.42 2.51 0.03 59.39 17:08:01 4 29.84 0.00 6.76 6.01 0.03 57.35 17:08:01 5 29.46 0.00 6.42 1.61 0.03 62.48 17:08:01 6 32.17 0.00 6.50 5.58 0.02 55.73 17:08:01 7 32.75 1.77 6.75 1.33 0.03 57.36 17:09:01 all 56.95 0.00 7.51 0.23 0.02 35.29 17:09:01 0 55.42 0.00 6.89 0.10 0.02 37.57 17:09:01 1 59.62 0.00 7.70 0.62 0.02 32.04 17:09:01 2 54.80 0.00 7.29 0.17 0.03 37.71 17:09:01 3 54.00 0.00 7.42 0.24 0.03 38.31 17:09:01 4 56.77 0.00 7.46 0.05 0.02 35.70 17:09:01 5 57.51 0.00 7.08 0.65 0.02 34.74 17:09:01 6 62.60 0.00 8.45 0.00 0.03 28.91 17:09:01 7 54.83 0.00 7.77 0.00 0.02 37.38 17:10:01 all 13.26 0.22 4.13 2.19 0.02 80.19 17:10:01 0 12.06 0.00 6.28 0.65 0.03 80.97 17:10:01 1 13.50 0.00 4.12 2.49 0.03 79.85 17:10:01 2 18.22 0.00 3.80 3.02 0.00 74.96 17:10:01 3 12.31 0.02 3.84 3.97 0.02 79.84 17:10:01 4 12.33 0.00 4.06 6.57 0.03 77.01 17:10:01 5 13.20 1.20 3.83 0.30 0.02 81.46 17:10:01 6 11.19 0.00 3.66 0.27 0.02 84.86 17:10:01 7 13.23 0.54 3.44 0.22 0.03 82.54 17:11:01 all 9.29 0.00 1.55 0.61 0.03 88.53 17:11:01 0 11.34 0.00 1.51 0.12 0.02 87.02 17:11:01 1 7.89 0.00 1.44 0.58 0.03 90.06 17:11:01 2 10.68 0.00 1.18 0.22 0.03 87.89 17:11:01 3 3.61 0.00 1.15 0.13 0.02 95.09 17:11:01 4 4.34 0.00 1.52 1.99 0.02 92.12 17:11:01 5 10.92 0.00 2.01 0.47 0.05 86.56 17:11:01 6 15.32 0.00 1.67 0.37 0.02 82.63 17:11:01 7 10.23 0.00 1.88 1.02 0.03 86.84 Average: all 22.94 0.18 4.27 2.80 0.02 69.79 Average: 0 22.02 0.01 4.62 3.76 0.02 69.58 Average: 1 22.60 0.00 4.33 2.46 0.02 70.58 Average: 2 24.44 0.00 4.14 1.94 0.02 69.46 Average: 3 21.29 0.31 4.20 1.66 0.02 72.52 Average: 4 21.64 0.00 4.15 3.61 0.02 70.58 Average: 5 23.09 0.24 4.05 0.78 0.02 71.81 Average: 6 25.61 0.00 4.49 7.46 0.02 62.42 Average: 7 22.81 0.86 4.18 0.72 0.03 71.40