---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-12767 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 nrip_save 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/74ffbd9011d4014d9f23cfdae4ac049398883a80dc41a72748186fed47d24d5a/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/51a6b5cec8a6fd42d92cb81b40ab1fb654619e176bc94e0251edd4c5817d834f/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/cbc3aed84a0787e86147d0ba5612c1c52a76a73a3383b489b7e7efbd38d721cb/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/699680fbdb642ce16600ae2b6e0c0e5d53d000ddf99b7845cf54bf37c964852f/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/ea2bbbd29f8a7b6ad67ca70173136dacac9d48c695c7404502482078b0913da7/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1549 24175 1 6442 30161 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:ef:a6:c2 brd ff:ff:ff:ff:ff:ff inet 10.30.106.246/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86095sec preferred_lft 86095sec inet6 fe80::f816:3eff:feef:a6c2/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:15:83:0b:9c 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::42:15ff:fe83:b9c/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 86:ce:9f:b9:5f:e0 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::84ce:9fff:feb9:5fe0/64 scope link valid_lft forever preferred_lft forever 7: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether fa:a6:dd:cf:3a:0b 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::f8a6:ddff:fecf:3a0b/64 scope link valid_lft forever preferred_lft forever 8: veth473ff86e@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 96:e0:3c:b5:f4:b3 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::94e0:3cff:feb5:f4b3/64 scope link valid_lft forever preferred_lft forever 9: veth62cb57c8@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 9a:4a:e6:fa:ee:70 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::984a:e6ff:fefa:ee70/64 scope link valid_lft forever preferred_lft forever 10: veth65584fce@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 9e:83:57:4e:e9:f7 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::9c83:57ff:fe4e:e9f7/64 scope link valid_lft forever preferred_lft forever 13: veth5ec2280c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether de:d6:aa:6f:7f:71 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::dcd6:aaff:fe6f:7f71/64 scope link valid_lft forever preferred_lft forever 14: veth60ec5cdb@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4a:e7:b8:89:fd:99 brd ff:ff:ff:ff:ff:ff link-netnsid 7 inet6 fe80::48e7:b8ff:fe89:fd99/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-12767) 07/14/26 _x86_64_ (8 CPU) 10:34:51 LINUX RESTART (8 CPU) 10:35:01 tps rtps wtps bread/s bwrtn/s 10:36:02 412.96 133.36 279.60 8004.93 153651.99 10:37:01 545.59 3.93 541.65 376.34 142587.90 10:38:01 227.65 3.52 224.13 477.25 106162.84 10:39:01 94.00 20.70 73.30 802.93 10869.87 Average: 319.11 40.53 278.58 2423.96 103157.73 10:35:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:36:02 28238668 31245228 4700552 14.27 69588 3209124 2215940 6.73 1679040 2631860 1061780 10:37:01 25247896 30511308 7691324 23.35 135164 5211240 3463984 10.52 2884352 4183968 734208 10:38:01 25614268 31020848 7324952 22.24 141148 5426772 2946900 8.95 2287868 4493808 308 10:39:01 25090916 30944704 7848304 23.83 149724 5834820 3321108 10.08 2477368 4791052 165604 Average: 26047937 30930522 6891283 20.92 123906 4920489 2986983 9.07 2332157 4025172 490475 10:35:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 10:36:02 lo 158.12 158.12 76.99 76.99 0.00 0.00 0.00 0.00 10:36:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:36:02 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:36:02 ens3 585.34 393.48 8044.01 84.81 0.00 0.00 0.00 0.00 10:37:01 cni0 41.38 39.89 21.74 94.35 0.00 0.00 0.88 0.00 10:37:01 veth7ad1cfe 147.53 196.75 13.84 1639.78 0.00 0.00 0.00 0.13 10:37:01 lo 77.46 77.46 102.73 102.73 0.00 0.00 0.00 0.00 10:37:01 veth473ff86e 7.98 10.12 2.46 2.71 0.00 0.00 0.00 0.00 10:38:01 cni0 11.43 12.96 2.32 1.44 0.00 0.00 0.08 0.00 10:38:01 lo 16.60 16.60 4.21 4.21 0.00 0.00 0.00 0.00 10:38:01 veth473ff86e 6.85 8.27 2.07 0.97 0.00 0.00 0.00 0.00 10:38:01 veth5ec2280c 0.17 0.57 0.01 0.04 0.00 0.00 0.00 0.00 10:39:01 cni0 12.52 13.80 2.44 2.00 0.00 0.00 0.18 0.00 10:39:01 lo 43.05 43.05 17.20 17.20 0.00 0.00 0.00 0.00 10:39:01 veth473ff86e 7.45 8.78 2.16 1.20 0.00 0.00 0.00 0.00 10:39:01 veth5ec2280c 0.02 0.18 0.00 0.01 0.00 0.00 0.00 0.00 Average: cni0 16.23 16.57 6.56 24.16 0.00 0.00 0.28 0.00 Average: lo 73.79 73.79 50.07 50.07 0.00 0.00 0.00 0.00 Average: veth473ff86e 5.56 6.78 1.67 1.21 0.00 0.00 0.00 0.00 Average: veth5ec2280c 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-12767) 07/14/26 _x86_64_ (8 CPU) 10:34:51 LINUX RESTART (8 CPU) 10:35:01 CPU %user %nice %system %iowait %steal %idle 10:36:02 all 12.54 0.79 3.61 2.62 0.06 80.38 10:36:02 0 12.82 0.00 3.24 1.29 0.07 82.58 10:36:02 1 10.84 0.02 4.25 0.67 0.07 84.16 10:36:02 2 14.21 3.21 3.46 1.86 0.05 77.20 10:36:02 3 13.36 0.00 4.16 5.36 0.07 77.06 10:36:02 4 11.78 0.00 4.17 3.00 0.05 81.00 10:36:02 5 8.71 0.00 2.96 1.91 0.05 86.37 10:36:02 6 11.11 0.00 3.21 2.66 0.07 82.95 10:36:02 7 17.50 3.10 3.30 4.32 0.07 71.71 10:37:01 all 39.93 0.00 6.90 2.90 0.12 50.14 10:37:01 0 39.50 0.00 6.68 2.06 0.10 51.66 10:37:01 1 38.13 0.00 6.88 2.32 0.14 52.53 10:37:01 2 38.24 0.00 7.77 4.91 0.14 48.94 10:37:01 3 38.39 0.00 6.86 1.71 0.10 52.94 10:37:01 4 39.06 0.00 6.81 2.53 0.10 51.50 10:37:01 5 43.28 0.00 6.96 2.57 0.12 47.07 10:37:01 6 38.50 0.00 6.06 2.14 0.10 53.20 10:37:01 7 44.41 0.00 7.23 4.97 0.12 43.27 10:38:01 all 36.92 0.22 6.78 1.04 0.11 54.94 10:38:01 0 37.53 0.00 6.68 1.13 0.12 54.54 10:38:01 1 34.21 0.00 6.85 0.34 0.10 58.50 10:38:01 2 37.71 0.00 7.15 1.00 0.12 54.02 10:38:01 3 36.55 0.00 7.34 0.83 0.12 55.17 10:38:01 4 38.65 1.05 7.01 4.20 0.12 48.98 10:38:01 5 39.53 0.00 6.44 0.47 0.10 53.46 10:38:01 6 35.65 0.66 6.18 0.30 0.08 57.13 10:38:01 7 35.55 0.00 6.64 0.07 0.12 57.63 10:39:01 all 7.81 0.00 1.43 0.40 0.07 90.29 10:39:01 0 4.85 0.00 0.92 0.07 0.05 94.12 10:39:01 1 3.17 0.00 1.28 0.30 0.03 95.22 10:39:01 2 5.57 0.00 1.22 0.47 0.07 92.67 10:39:01 3 3.82 0.00 1.26 0.49 0.05 94.39 10:39:01 4 14.86 0.00 1.93 0.27 0.08 82.87 10:39:01 5 9.36 0.00 1.58 0.86 0.08 88.12 10:39:01 6 15.44 0.00 2.05 0.23 0.08 82.19 10:39:01 7 5.34 0.00 1.22 0.50 0.07 92.88 Average: all 24.19 0.25 4.67 1.73 0.09 69.07 Average: 0 23.54 0.00 4.36 1.13 0.08 70.88 Average: 1 21.47 0.00 4.80 0.90 0.08 72.74 Average: 2 23.82 0.81 4.88 2.04 0.09 68.36 Average: 3 22.94 0.00 4.89 2.10 0.08 69.99 Average: 4 25.98 0.26 4.96 2.50 0.09 66.21 Average: 5 25.09 0.00 4.47 1.45 0.09 68.90 Average: 6 25.10 0.16 4.37 1.33 0.08 68.96 Average: 7 25.56 0.78 4.58 2.45 0.09 66.54