---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6713 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/b553fb0c249a45b6e98b07090e75c7b423ce86e3185d69e3d84679a28a3b0dd1/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/43cae5b4a566c82bc6fa1d583cf0008f323758a0f7e5f3a2d45d6a411d13837d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/b8bf91114f15190ce19ff8400661554f4c5a2540f18bb27dee6cdc136f143417/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/d4abe449a5f66d68559e12c6de2d82fd0951949d3531b18311d36826e40fd3e0/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f6952e60ad5eba27c72726379bf954dfc5c5790e4a8490e6ea7801a75ee4df76/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1531 24194 1 6441 30179 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:e9:6e:28 brd ff:ff:ff:ff:ff:ff inet 10.30.106.32/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86083sec preferred_lft 86083sec inet6 fe80::f816:3eff:fee9:6e28/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:7b:d3:56:3c 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::42:7bff:fed3:563c/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether aa:57:d8:ca:5e:29 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::a857:d8ff:feca:5e29/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 0a:7b:34:e9:b9:8e 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::87b:34ff:fee9:b98e/64 scope link valid_lft forever preferred_lft forever 7: veth12af55df@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 72:f1:bd:f6:7d:f7 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet6 fe80::70f1:bdff:fef6:7df7/64 scope link valid_lft forever preferred_lft forever 8: vethd6e4c3e6@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 1a:9c:83:16:bc:e6 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::189c:83ff:fe16:bce6/64 scope link valid_lft forever preferred_lft forever 9: veth55b3976c@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 2e:ed:13:12:aa:31 brd ff:ff:ff:ff:ff:ff link-netnsid 3 inet6 fe80::2ced:13ff:fe12:aa31/64 scope link valid_lft forever preferred_lft forever 13: veth03c26397@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 92:b4:cd:0a:61:61 brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::90b4:cdff:fe0a:6161/64 scope link valid_lft forever preferred_lft forever 14: vethdf69024b@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 4a:8b:7e:b0:25:c3 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::488b:7eff:feb0:25c3/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6713) 07/08/26 _x86_64_ (8 CPU) 10:06:52 LINUX RESTART (8 CPU) 10:07:01 tps rtps wtps bread/s bwrtn/s 10:08:01 502.50 133.29 369.21 7995.87 154739.81 10:09:01 499.88 3.18 496.70 378.74 138780.60 10:10:01 195.07 3.35 191.72 458.19 67878.95 10:11:01 127.70 20.43 107.27 770.40 51345.84 10:12:01 98.08 1.05 97.03 71.59 10358.14 Average: 284.65 32.26 252.38 1934.96 84620.67 10:07:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:08:01 28866764 31311032 4072456 12.36 59312 2675568 2195216 6.66 1615272 2106212 524516 10:09:01 25311288 30793880 7627932 23.16 137528 5422212 3239640 9.84 2901672 4096244 1068992 10:10:01 25934244 31074776 7004976 21.27 140812 5186828 2601444 7.90 2199600 4293536 439280 10:11:01 25126548 30888432 7812672 23.72 150160 5757784 3324560 10.09 2532916 4714760 93036 10:12:01 24768896 30894364 8170324 24.80 155332 6078456 3331200 10.11 2539240 5027144 218812 Average: 26001548 30992497 6937672 21.06 128629 5024170 2938412 8.92 2357740 4047579 468927 10:07:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 10:08:01 lo 156.14 156.14 75.49 75.49 0.00 0.00 0.00 0.00 10:08:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:08:01 ens3 707.38 442.21 8048.81 85.48 0.00 0.00 0.00 0.00 10:09:01 veth12af55df 3.35 4.57 0.34 0.79 0.00 0.00 0.00 0.00 10:09:01 vethdf69024b 5.75 4.92 1.12 1.83 0.00 0.00 0.00 0.00 10:09:01 lo 75.79 75.79 98.32 98.32 0.00 0.00 0.00 0.00 10:09:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:10:01 veth12af55df 2.95 3.23 0.27 0.28 0.00 0.00 0.00 0.00 10:10:01 vethdf69024b 1.45 1.58 0.12 0.20 0.00 0.00 0.00 0.00 10:10:01 lo 13.31 13.31 3.83 3.83 0.00 0.00 0.00 0.00 10:10:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:11:01 veth12af55df 3.17 3.53 0.29 0.40 0.00 0.00 0.00 0.00 10:11:01 vethdf69024b 1.62 1.88 0.14 0.42 0.00 0.00 0.00 0.00 10:11:01 lo 45.09 45.09 17.47 17.47 0.00 0.00 0.00 0.00 10:11:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:12:01 veth12af55df 3.07 3.22 0.28 0.28 0.00 0.00 0.00 0.00 10:12:01 vethdf69024b 1.50 1.52 0.13 0.19 0.00 0.00 0.00 0.00 10:12:01 lo 20.16 20.16 4.90 4.90 0.00 0.00 0.00 0.00 10:12:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth12af55df 2.51 2.91 0.24 0.35 0.00 0.00 0.00 0.00 Average: vethdf69024b 2.06 1.98 0.30 0.53 0.00 0.00 0.00 0.00 Average: lo 62.10 62.10 40.00 40.00 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 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6713) 07/08/26 _x86_64_ (8 CPU) 10:06:52 LINUX RESTART (8 CPU) 10:07:01 CPU %user %nice %system %iowait %steal %idle 10:08:01 all 11.00 0.90 3.16 2.22 0.06 82.66 10:08:01 0 9.60 1.89 3.03 0.72 0.05 84.71 10:08:01 1 10.62 0.00 5.06 3.48 0.05 80.79 10:08:01 2 8.41 3.36 3.02 0.87 0.07 84.27 10:08:01 3 8.70 0.02 2.25 1.33 0.07 87.64 10:08:01 4 11.70 0.00 2.65 7.08 0.07 78.50 10:08:01 5 8.38 0.00 3.03 0.42 0.05 88.12 10:08:01 6 17.56 1.88 3.55 1.86 0.07 75.09 10:08:01 7 13.02 0.00 2.63 2.01 0.07 82.27 10:09:01 all 40.55 0.00 7.02 2.30 0.12 50.01 10:09:01 0 40.52 0.00 7.31 2.47 0.12 49.59 10:09:01 1 44.37 0.00 7.32 2.68 0.12 45.51 10:09:01 2 40.59 0.00 7.01 2.83 0.12 49.44 10:09:01 3 38.94 0.00 7.24 3.74 0.14 49.95 10:09:01 4 39.98 0.00 6.34 0.80 0.10 52.78 10:09:01 5 39.58 0.00 7.55 2.96 0.14 49.77 10:09:01 6 39.45 0.00 6.66 1.57 0.12 52.20 10:09:01 7 40.98 0.00 6.75 1.30 0.12 50.85 10:10:01 all 36.89 0.21 6.01 0.70 0.10 56.09 10:10:01 0 38.88 0.00 5.49 0.56 0.10 54.97 10:10:01 1 37.20 0.00 6.48 1.26 0.10 54.96 10:10:01 2 39.41 0.00 5.54 0.40 0.08 54.56 10:10:01 3 33.30 0.00 5.98 0.74 0.08 59.90 10:10:01 4 34.27 0.00 5.43 0.94 0.10 59.25 10:10:01 5 42.90 0.00 6.49 0.22 0.10 50.29 10:10:01 6 34.75 1.72 6.19 0.69 0.14 56.52 10:10:01 7 34.34 0.00 6.51 0.79 0.10 58.25 10:11:01 all 8.67 0.00 2.31 0.78 0.08 88.16 10:11:01 0 6.14 0.00 2.09 0.07 0.07 91.64 10:11:01 1 15.01 0.00 2.75 0.39 0.10 81.75 10:11:01 2 11.37 0.00 2.00 1.01 0.08 85.54 10:11:01 3 8.42 0.00 2.31 2.58 0.07 86.63 10:11:01 4 6.83 0.00 2.67 0.07 0.07 90.37 10:11:01 5 11.03 0.00 2.30 0.29 0.10 86.28 10:11:01 6 4.96 0.00 2.58 1.70 0.07 90.69 10:11:01 7 5.59 0.00 1.78 0.13 0.07 92.43 10:12:01 all 11.27 0.00 1.27 0.36 0.07 87.03 10:12:01 0 5.37 0.00 1.05 0.02 0.05 93.51 10:12:01 1 15.94 0.00 1.54 0.74 0.07 81.72 10:12:01 2 5.19 0.00 1.00 0.55 0.07 93.19 10:12:01 3 13.22 0.00 1.48 1.26 0.10 83.95 10:12:01 4 9.25 0.00 1.06 0.03 0.05 89.61 10:12:01 5 12.35 0.00 1.37 0.03 0.08 86.15 10:12:01 6 13.83 0.00 1.14 0.10 0.08 84.85 10:12:01 7 15.05 0.00 1.50 0.17 0.05 83.23 Average: all 21.63 0.22 3.95 1.27 0.09 72.84 Average: 0 20.03 0.38 3.78 0.76 0.08 74.97 Average: 1 24.59 0.00 4.62 1.71 0.09 68.99 Average: 2 20.97 0.67 3.71 1.13 0.08 73.43 Average: 3 20.49 0.00 3.84 1.93 0.09 73.65 Average: 4 20.36 0.00 3.62 1.79 0.08 74.15 Average: 5 22.80 0.00 4.14 0.78 0.09 72.18 Average: 6 22.07 0.72 4.01 1.18 0.09 71.92 Average: 7 21.76 0.00 3.83 0.88 0.08 73.45