---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-1124 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/9626bad7817681b0b30814ba08841bae61d50aec8cc2799cc3c286163c48da39/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/131674d1287929157ae2fddd39741a58269ec744acf1b3dfce38e43a9e657d8b/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/7d35750385e0080d3e0aaaf2e21fa3ac672204af7761b9f704cb5f94838aa343/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/90712c8175856ce8e8dac340b971ddc07371358d6a83fba77b5d25942aa80ac4/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/491b5ef45198f6519450d36d8fb4385a6bca36881075e6f606bdfaa1cecb69f8/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1517 24209 1 6440 30192 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:98:05:b1 brd ff:ff:ff:ff:ff:ff inet 10.30.107.10/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86072sec preferred_lft 86072sec inet6 fe80::f816:3eff:fe98:5b1/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:f8:31:aa:b9 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:f8ff:fe31:aab9/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether 72:88:87:9d:e3:91 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::7088:87ff:fe9d:e391/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 9e:4c:3e:ff:50:02 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::9c4c:3eff:feff:5002/64 scope link valid_lft forever preferred_lft forever 8: vethac1b6f06@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 62:a2:74:f7:92:a2 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::60a2:74ff:fef7:92a2/64 scope link valid_lft forever preferred_lft forever 9: veth04ece035@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1a:f0:c6:b7:b7:a6 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::18f0:c6ff:feb7:b7a6/64 scope link valid_lft forever preferred_lft forever 10: vethf0c0560e@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 2e:14:d7:cf:04:f3 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::2c14:d7ff:fecf:4f3/64 scope link valid_lft forever preferred_lft forever 11: veth3ba29523@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1e:74:ab:5b:1a:1b brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::1c74:abff:fe5b:1a1b/64 scope link valid_lft forever preferred_lft forever 12: vethb79ea729@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ee:03:ee:5c:ce:3f brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::ec03:eeff:fe5c:ce3f/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-1124) 07/20/26 _x86_64_ (8 CPU) 05:56:20 LINUX RESTART (8 CPU) 05:57:01 tps rtps wtps bread/s bwrtn/s 05:58:01 535.69 83.22 452.47 3698.98 180432.73 05:59:01 161.40 0.03 161.36 0.27 42942.89 06:00:01 184.55 3.52 181.04 472.19 97172.07 06:01:01 93.83 20.70 73.14 802.80 11036.43 Average: 243.87 26.87 217.00 1243.51 82894.36 05:57:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:58:01 26693884 31083508 6245336 18.96 126320 4389436 2839576 8.62 2052568 3620648 555276 05:59:01 25540048 30780872 7399172 22.46 133924 5191476 3729584 11.32 2860248 3916244 447428 06:00:01 25623340 31027544 7315880 22.21 139596 5426452 3212664 9.75 2278256 4494628 640 06:01:01 25100920 30955852 7838300 23.80 149456 5834944 3267012 9.92 2464728 4790412 166460 Average: 25739548 30961944 7199672 21.86 137324 5210577 3262209 9.90 2413950 4205483 292451 05:57:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:58:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:58:01 docker0 196.00 228.66 14.18 1607.37 0.00 0.00 0.00 0.00 05:58:01 vethb79ea729 5.57 4.62 1.10 1.89 0.00 0.00 0.00 0.00 05:58:01 ens3 562.04 399.67 11272.61 37.71 0.00 0.00 0.00 0.00 05:59:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:59:01 docker0 11.56 16.39 0.83 19.85 0.00 0.00 0.00 0.00 05:59:01 vethb79ea729 1.50 1.62 0.13 0.20 0.00 0.00 0.00 0.00 05:59:01 ens3 19.31 13.01 20.46 1.76 0.00 0.00 0.00 0.00 06:00:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:00:01 docker0 0.03 0.08 0.00 0.01 0.00 0.00 0.00 0.00 06:00:01 vethb79ea729 1.50 1.62 0.13 0.20 0.00 0.00 0.00 0.00 06:00:01 ens3 189.09 112.50 5374.14 11.45 0.00 0.00 0.00 0.00 06:01:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:01:01 vethb79ea729 1.53 1.82 0.13 0.41 0.00 0.00 0.00 0.00 06:01:01 ens3 97.55 71.47 1622.48 13.99 0.00 0.00 0.00 0.00 Average: flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 51.90 61.28 3.75 406.79 0.00 0.00 0.00 0.00 Average: vethb79ea729 2.52 2.42 0.37 0.68 0.00 0.00 0.00 0.00 Average: ens3 216.99 149.16 4572.23 16.23 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-1124) 07/20/26 _x86_64_ (8 CPU) 05:56:20 LINUX RESTART (8 CPU) 05:57:01 CPU %user %nice %system %iowait %steal %idle 05:58:01 all 15.14 0.39 6.01 3.11 0.09 75.27 05:58:01 0 15.50 1.57 6.37 3.44 0.08 73.04 05:58:01 1 17.29 0.00 6.50 1.65 0.08 74.47 05:58:01 2 16.56 0.00 5.40 1.30 0.10 76.64 05:58:01 3 15.87 0.00 5.74 2.89 0.10 75.39 05:58:01 4 13.92 0.00 5.31 5.56 0.07 75.14 05:58:01 5 13.24 0.00 6.58 3.49 0.10 76.59 05:58:01 6 14.52 0.00 5.88 3.22 0.07 76.31 05:58:01 7 14.19 1.57 6.28 3.30 0.10 74.57 05:59:01 all 43.47 0.00 5.61 0.36 0.10 50.46 05:59:01 0 42.34 0.00 5.33 0.77 0.10 51.46 05:59:01 1 47.50 0.00 6.17 0.15 0.10 46.07 05:59:01 2 44.57 0.00 5.99 1.35 0.10 47.99 05:59:01 3 42.58 0.00 5.85 0.02 0.10 51.45 05:59:01 4 42.26 0.00 5.30 0.02 0.10 52.32 05:59:01 5 42.39 0.00 5.54 0.03 0.08 51.95 05:59:01 6 44.72 0.00 5.20 0.50 0.10 49.48 05:59:01 7 41.46 0.00 5.51 0.05 0.08 52.90 06:00:01 all 31.66 0.20 6.24 0.93 0.09 60.89 06:00:01 0 32.73 0.00 5.94 0.19 0.08 61.06 06:00:01 1 34.67 0.00 7.34 0.37 0.10 57.51 06:00:01 2 30.40 0.00 5.15 0.12 0.07 64.27 06:00:01 3 30.86 0.00 7.03 3.45 0.08 58.59 06:00:01 4 31.59 1.59 5.44 0.37 0.10 60.90 06:00:01 5 30.06 0.00 6.11 0.25 0.08 63.50 06:00:01 6 32.16 0.00 6.47 0.73 0.10 60.53 06:00:01 7 30.77 0.00 6.45 1.94 0.08 60.76 06:01:01 all 9.04 0.00 1.44 0.43 0.07 89.02 06:01:01 0 5.65 0.00 1.49 0.33 0.07 92.47 06:01:01 1 7.28 0.00 1.49 1.14 0.08 90.01 06:01:01 2 16.98 0.00 1.91 0.45 0.10 80.56 06:01:01 3 18.48 0.00 1.83 0.84 0.08 78.77 06:01:01 4 4.88 0.00 1.11 0.20 0.07 93.75 06:01:01 5 4.31 0.00 1.35 0.22 0.05 94.07 06:01:01 6 5.62 0.00 1.00 0.13 0.07 93.18 06:01:01 7 9.14 0.00 1.34 0.17 0.07 89.29 Average: all 24.81 0.15 4.82 1.21 0.09 68.93 Average: 0 24.02 0.39 4.77 1.18 0.08 69.55 Average: 1 26.65 0.00 5.37 0.83 0.09 67.06 Average: 2 27.11 0.00 4.61 0.80 0.09 67.38 Average: 3 26.96 0.00 5.11 1.79 0.09 66.05 Average: 4 23.16 0.40 4.28 1.53 0.08 70.54 Average: 5 22.49 0.00 4.89 1.00 0.08 71.55 Average: 6 24.22 0.00 4.63 1.14 0.08 69.93 Average: 7 23.88 0.39 4.89 1.36 0.08 69.40