---> uname -a: Linux af54c6174f49 3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018 x86_64 Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 40 bits physical, 48 bits virtual CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 4 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 44 Model name: Westmere E56xx/L56xx/X56xx (IBRS update) Stepping: 1 CPU MHz: 2933.396 BogoMIPS: 5866.79 Virtualization: VT-x Hypervisor vendor: KVM Virtualization type: full L1d cache: 128 KiB L1i cache: 128 KiB L2 cache: 16 MiB L3 cache: 64 MiB NUMA node0 CPU(s): 0-3 Vulnerability L1tf: Mitigation; PTE Inversion; VMX SMT disabled, L1D conditional cache flushes Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq vmx ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes hypervisor lahf_lm ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust arat spec_ctrl intel_stibp ---> nproc: 4 ---> df -h: Filesystem Size Used Available Use% Mounted on overlay 50.0G 7.5G 42.5G 15% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 919.1M 0 919.1M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 7.5G 42.5G 15% /etc/resolv.conf /dev/vda1 50.0G 7.5G 42.5G 15% /etc/hostname /dev/vda1 50.0G 7.5G 42.5G 15% /etc/hosts /dev/vda1 50.0G 7.5G 42.5G 15% /var/log/sa /dev/vda1 50.0G 7.5G 42.5G 15% /w/workspace/xfoundry_device-modbus-go_master /dev/vda1 50.0G 7.5G 42.5G 15% /w/workspace/xfoundry_device-modbus-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1838 731 91 0 1015 1044 Swap: 1023 1 1022 ---> ip addr: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN 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 24: eth0@if25: mtu 1458 qdisc noqueue state UP link/ether 02:42:0a:fa:00:01 brd ff:ff:ff:ff:ff:ff inet 10.250.0.1/24 brd 10.250.0.255 scope global eth0 valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 02/21/20 _x86_64_ (4 CPU) 04:20:02 LINUX RESTART 04:21:02 tps rtps wtps bread/s bwrtn/s 04:22:01 6.15 0.00 6.15 0.00 1674.87 04:23:01 2.36 0.00 2.36 0.00 79.38 04:24:01 0.38 0.00 0.38 0.00 6.25 04:25:01 0.33 0.00 0.33 0.00 5.18 04:26:01 0.28 0.00 0.28 0.00 4.46 04:27:01 0.43 0.00 0.43 0.00 6.71 04:28:01 181.23 99.57 81.66 3856.08 28682.93 04:29:01 212.54 67.19 145.35 2935.64 32665.56 Average: 50.57 20.90 29.68 851.09 7906.56 04:21:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:22:01 122604 1759700 93.49 2620 1239700 903312 30.82 410836 1190532 20 04:23:01 121816 1760488 93.53 2620 1239704 903468 30.83 412396 1190232 20 04:24:01 121404 1760900 93.55 2620 1239712 903552 30.83 412672 1190232 16 04:25:01 122928 1759376 93.47 2620 1239712 903312 30.82 411272 1190232 12 04:26:01 122588 1759716 93.49 2620 1239720 903384 30.82 411796 1190232 8 04:27:01 122612 1759692 93.49 2620 1239724 903416 30.82 411500 1190228 16 04:28:01 70536 1811768 96.25 2620 1109388 1157564 39.50 529796 1075856 44112 04:29:01 99832 1782472 94.70 2580 1082296 924724 31.55 614616 882884 84440 Average: 113040 1769264 93.99 2615 1203745 937842 32.00 451861 1137554 16081 04:21:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 04:22:01 eth0 1.12 0.08 0.10 0.02 0.00 0.00 0.00 04:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:23:01 eth0 0.82 0.45 0.28 0.18 0.00 0.00 0.00 04:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:24:01 eth0 4.51 2.27 3.99 0.36 0.00 0.00 0.00 04:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:25:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 04:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:26:01 eth0 0.13 0.10 0.08 0.06 0.00 0.00 0.00 04:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:27:01 eth0 0.20 0.17 0.07 0.01 0.00 0.00 0.00 04:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:28:01 vethe53d8ef 26.33 23.46 2.90 261.84 0.00 0.00 0.00 04:28:01 eth0 589.02 446.76 4771.27 109.23 0.00 0.00 0.00 04:28:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 04:28:01 docker0 27.68 24.58 2.78 264.72 0.00 0.00 0.00 04:29:01 eth0 350.99 259.23 3883.35 86.57 0.00 0.00 0.00 04:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:29:01 vethc8133d5 60.18 99.35 3.99 240.36 0.00 0.00 0.00 04:29:01 docker0 62.21 100.83 3.49 241.70 0.00 0.00 0.00 Average: eth0 67.88 52.37 955.99 13.38 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: vethc8133d5 7.54 12.45 0.50 30.12 0.00 0.00 0.00 Average: docker0 11.26 15.71 0.79 63.46 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 02/21/20 _x86_64_ (4 CPU) 04:20:02 LINUX RESTART 04:21:02 CPU %user %nice %system %iowait %steal %idle 04:22:01 all 0.20 0.00 0.11 0.00 0.00 99.69 04:22:01 0 0.54 0.00 0.03 0.00 0.00 99.42 04:22:01 1 0.03 0.00 0.19 0.00 0.00 99.78 04:22:01 2 0.07 0.00 0.10 0.00 0.00 99.83 04:22:01 3 0.15 0.00 0.10 0.00 0.00 99.75 04:23:01 all 0.18 0.00 0.05 0.00 0.00 99.76 04:23:01 0 0.48 0.00 0.05 0.00 0.00 99.47 04:23:01 1 0.07 0.00 0.05 0.00 0.02 99.87 04:23:01 2 0.07 0.00 0.05 0.00 0.02 99.87 04:23:01 3 0.12 0.00 0.07 0.00 0.00 99.82 04:24:01 all 0.21 0.00 0.06 0.00 0.00 99.73 04:24:01 0 0.57 0.00 0.05 0.00 0.00 99.38 04:24:01 1 0.07 0.00 0.05 0.00 0.00 99.88 04:24:01 2 0.13 0.00 0.07 0.00 0.00 99.80 04:24:01 3 0.05 0.00 0.07 0.00 0.00 99.88 04:25:01 all 0.20 0.00 0.05 0.00 0.00 99.75 04:25:01 0 0.55 0.00 0.03 0.00 0.00 99.42 04:25:01 1 0.05 0.00 0.03 0.00 0.00 99.92 04:25:01 2 0.08 0.00 0.05 0.00 0.00 99.87 04:25:01 3 0.10 0.00 0.07 0.00 0.02 99.82 04:26:01 all 0.18 0.00 0.06 0.00 0.00 99.75 04:26:01 0 0.53 0.00 0.07 0.00 0.00 99.40 04:26:01 1 0.03 0.00 0.03 0.00 0.00 99.93 04:26:01 2 0.08 0.00 0.08 0.00 0.00 99.83 04:26:01 3 0.10 0.00 0.07 0.00 0.00 99.83 04:27:01 all 0.19 0.00 0.06 0.00 0.00 99.75 04:27:01 0 0.32 0.00 0.03 0.00 0.00 99.65 04:27:01 1 0.08 0.00 0.07 0.00 0.00 99.85 04:27:01 2 0.07 0.00 0.07 0.00 0.00 99.87 04:27:01 3 0.30 0.00 0.07 0.00 0.00 99.63 04:28:01 all 7.30 0.00 4.44 3.31 0.02 84.93 04:28:01 0 6.96 0.00 4.62 2.51 0.02 85.89 04:28:01 1 6.95 0.00 3.93 3.89 0.02 85.21 04:28:01 2 6.88 0.00 4.28 3.49 0.02 85.34 04:28:01 3 8.42 0.00 4.88 3.37 0.02 83.31 04:29:01 all 13.65 0.00 8.66 2.78 0.02 74.89 04:29:01 0 12.85 0.00 9.15 2.41 0.00 75.59 04:29:01 1 13.01 0.00 8.16 4.45 0.02 74.36 04:29:01 2 13.06 0.00 9.73 3.01 0.02 74.18 04:29:01 3 15.66 0.00 7.63 1.26 0.02 75.44 Average: all 2.74 0.00 1.67 0.76 0.01 94.83 Average: 0 2.83 0.00 1.74 0.61 0.00 94.82 Average: 1 2.52 0.00 1.55 1.04 0.01 94.89 Average: 2 2.54 0.00 1.79 0.81 0.01 94.86 Average: 3 3.08 0.00 1.60 0.57 0.01 94.73