---> uname -a: Linux 914da95a59dc 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: 2933.436 BogoMIPS: 5866.87 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 6.8G 43.2G 14% / 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 6.8G 43.2G 14% /etc/resolv.conf /dev/vda1 50.0G 6.8G 43.2G 14% /etc/hostname /dev/vda1 50.0G 6.8G 43.2G 14% /etc/hosts /dev/vda1 50.0G 6.8G 43.2G 14% /w/workspace/modbus-go_edgex-modbus-simulator /dev/vda1 50.0G 6.8G 43.2G 14% /w/workspace/modbus-go_edgex-modbus-simulator@tmp /dev/vda1 50.0G 6.8G 43.2G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1838 635 72 0 1130 1103 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 14: eth0@if15: 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) 04/16/20 _x86_64_ (4 CPU) 00:47:52 LINUX RESTART 00:49:02 tps rtps wtps bread/s bwrtn/s 00:50:01 65.14 23.67 41.47 1712.97 8175.57 00:51:01 1.68 0.00 1.68 0.00 36.90 00:52:01 46.57 46.29 0.28 2974.63 4.26 Average: 37.65 23.32 14.33 1561.78 2708.72 00:49:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:50:01 262052 1620252 86.08 2620 1057796 969112 33.07 423088 1017040 16 00:51:01 265340 1616964 85.90 2620 1057800 934176 31.87 423568 1014052 16 00:52:01 157372 1724932 91.64 2620 1146888 965468 32.94 446960 1097836 60 Average: 228255 1654049 87.87 2620 1087495 956252 32.63 431205 1042976 31 00:49:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 00:50:01 eth0 11.73 6.93 15.00 3.28 0.00 0.00 0.00 00:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:50:01 docker0 3.27 4.01 0.26 9.17 0.00 0.00 0.00 00:51:01 eth0 0.48 0.30 0.27 0.20 0.00 0.00 0.00 00:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:52:01 eth0 3.60 2.23 3.80 1.37 0.00 0.00 0.00 00:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 5.24 3.13 6.31 1.61 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.08 1.32 0.09 3.02 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) 04/16/20 _x86_64_ (4 CPU) 00:47:52 LINUX RESTART 00:49:02 CPU %user %nice %system %iowait %steal %idle 00:50:01 all 2.58 0.00 1.85 0.54 0.85 94.17 00:50:01 0 2.26 0.00 2.02 0.54 0.80 94.38 00:50:01 1 2.76 0.00 1.48 0.58 0.90 94.28 00:50:01 2 2.46 0.00 1.87 0.29 0.85 94.53 00:50:01 3 2.83 0.00 2.04 0.75 0.85 93.53 00:51:01 all 0.17 0.00 0.06 0.00 0.05 99.71 00:51:01 0 0.02 0.00 0.05 0.00 0.03 99.90 00:51:01 1 0.07 0.00 0.03 0.00 0.07 99.83 00:51:01 2 0.17 0.00 0.08 0.00 0.02 99.73 00:51:01 3 0.45 0.00 0.08 0.00 0.10 99.37 00:52:01 all 0.48 0.00 0.21 0.84 0.07 98.40 00:52:01 0 0.55 0.00 0.23 1.34 0.05 97.83 00:52:01 1 0.65 0.00 0.18 0.65 0.03 98.48 00:52:01 2 0.13 0.00 0.18 0.22 0.05 99.42 00:52:01 3 0.57 0.00 0.27 1.19 0.13 97.84 Average: all 1.07 0.00 0.70 0.46 0.32 97.45 Average: 0 0.93 0.00 0.76 0.63 0.29 97.39 Average: 1 1.15 0.00 0.56 0.41 0.33 97.55 Average: 2 0.91 0.00 0.70 0.17 0.30 97.91 Average: 3 1.27 0.00 0.79 0.64 0.36 96.93