---> uname -a: Linux b18742e1d441 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: 2933.438 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 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 733 85 0 1018 1038 Swap: 1023 2 1021 ---> 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) 04/08/20 _x86_64_ (4 CPU) 04:21:22 LINUX RESTART 04:22:01 tps rtps wtps bread/s bwrtn/s 04:23:01 36.35 6.16 30.19 1881.98 2105.00 04:24:01 2.41 0.00 2.41 0.00 82.35 04:25:02 0.23 0.00 0.23 0.00 3.60 04:26:01 0.30 0.00 0.30 0.00 3.85 04:27:01 0.22 0.00 0.22 0.00 2.88 04:28:01 0.37 0.00 0.37 0.00 4.70 04:29:01 1.83 1.30 0.53 77.27 6.93 04:30:01 259.98 125.55 134.43 4985.06 43062.16 04:31:01 220.29 85.27 135.01 5462.74 38271.04 Average: 58.13 24.31 33.82 1381.77 9304.73 04:22:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:23:01 110356 1771948 94.14 2620 1241064 931192 31.77 418432 1194876 8 04:24:01 116500 1765804 93.81 2620 1241068 901836 30.77 414280 1193724 20 04:25:02 115828 1766476 93.85 2620 1241076 901968 30.77 415068 1193724 20 04:26:01 115764 1766540 93.85 2620 1241080 902072 30.78 415336 1193724 20 04:27:01 116324 1765980 93.82 2620 1241088 901976 30.77 414740 1193724 12 04:28:01 116208 1766096 93.83 2620 1241092 901964 30.77 414584 1193724 12 04:29:01 104040 1778264 94.47 2620 1243452 903704 30.83 418500 1194608 28 04:30:01 175908 1706396 90.65 2620 1080428 1019208 34.77 518932 984116 68548 04:31:01 66512 1815792 96.47 2064 1079120 1155164 39.41 620128 903980 24196 Average: 115271 1767033 93.88 2558 1205496 946565 32.30 450000 1138467 10318 04:22:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 04:23:01 eth0 140.86 97.34 437.77 43.59 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 1.37 1.07 0.25 2.88 0.00 0.00 0.00 04:24:01 eth0 1.25 0.32 0.52 0.02 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 04:25:02 eth0 1.17 0.70 0.56 0.37 0.00 0.00 0.00 04:25:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:25:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:26:01 eth0 0.85 0.42 0.30 0.21 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 0.60 0.22 0.17 0.10 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 eth0 1.30 0.32 0.33 0.20 0.00 0.00 0.00 04:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:29:01 eth0 4.73 3.16 4.60 1.63 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 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:30:01 eth0 368.73 301.91 7144.47 89.32 0.00 0.00 0.00 04:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:30:01 docker0 28.61 24.86 2.87 262.76 0.00 0.00 0.00 04:31:01 eth0 216.24 171.48 2632.57 71.70 0.00 0.00 0.00 04:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:31:01 docker0 35.85 41.47 2.12 250.95 0.00 0.00 0.00 Average: eth0 81.93 64.13 1138.41 23.07 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 7.33 7.51 0.58 57.54 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) 04/08/20 _x86_64_ (4 CPU) 04:21:22 LINUX RESTART 04:22:01 CPU %user %nice %system %iowait %steal %idle 04:23:01 all 3.15 0.00 1.58 0.72 0.03 94.52 04:23:01 0 2.73 0.00 1.59 0.08 0.03 95.56 04:23:01 1 3.21 0.00 1.49 1.17 0.02 94.11 04:23:01 2 3.08 0.00 1.81 1.57 0.02 93.52 04:23:01 3 3.58 0.00 1.42 0.05 0.03 94.92 04:24:01 all 0.10 0.00 0.07 0.00 0.00 99.82 04:24:01 0 0.08 0.00 0.05 0.00 0.00 99.87 04:24:01 1 0.12 0.00 0.08 0.00 0.02 99.78 04:24:01 2 0.13 0.00 0.08 0.00 0.00 99.78 04:24:01 3 0.07 0.00 0.05 0.00 0.00 99.88 04:25:02 all 0.16 0.00 0.05 0.00 0.00 99.78 04:25:02 0 0.07 0.00 0.03 0.00 0.00 99.90 04:25:02 1 0.10 0.00 0.07 0.00 0.00 99.83 04:25:02 2 0.40 0.00 0.07 0.00 0.00 99.53 04:25:02 3 0.08 0.00 0.05 0.00 0.00 99.87 04:26:01 all 0.20 0.00 0.05 0.00 0.00 99.75 04:26:01 0 0.12 0.00 0.05 0.00 0.00 99.83 04:26:01 1 0.05 0.00 0.05 0.00 0.00 99.90 04:26:01 2 0.56 0.00 0.05 0.00 0.00 99.39 04:26:01 3 0.07 0.00 0.05 0.00 0.00 99.88 04:27:01 all 0.18 0.00 0.05 0.00 0.00 99.77 04:27:01 0 0.08 0.00 0.07 0.00 0.00 99.85 04:27:01 1 0.05 0.00 0.03 0.00 0.00 99.92 04:27:01 2 0.53 0.00 0.03 0.00 0.02 99.42 04:27:01 3 0.05 0.00 0.05 0.00 0.02 99.88 04:28:01 all 0.19 0.00 0.05 0.00 0.00 99.76 04:28:01 0 0.05 0.00 0.03 0.00 0.00 99.92 04:28:01 1 0.05 0.00 0.05 0.00 0.00 99.90 04:28:01 2 0.53 0.00 0.03 0.00 0.00 99.43 04:28:01 3 0.08 0.00 0.07 0.00 0.00 99.85 04:29:01 all 0.46 0.00 0.28 0.01 0.01 99.24 04:29:01 0 0.32 0.00 0.37 0.02 0.02 99.28 04:29:01 1 0.53 0.00 0.25 0.02 0.00 99.20 04:29:01 2 0.72 0.00 0.22 0.02 0.00 99.05 04:29:01 3 0.28 0.00 0.30 0.03 0.02 99.37 04:30:01 all 13.90 0.00 8.59 3.12 0.15 74.24 04:30:01 0 14.42 0.00 8.36 2.47 0.10 74.65 04:30:01 1 12.66 0.00 8.55 2.71 0.17 75.92 04:30:01 2 15.09 0.00 8.50 4.13 0.15 72.13 04:30:01 3 13.43 0.00 8.95 3.13 0.19 74.30 04:31:01 all 13.21 0.00 8.82 3.17 0.07 74.72 04:31:01 0 16.47 0.00 8.62 2.50 0.08 72.33 04:31:01 1 11.88 0.00 9.03 3.57 0.07 75.45 04:31:01 2 12.23 0.00 8.69 3.10 0.08 75.90 04:31:01 3 12.27 0.00 8.96 3.54 0.05 75.17 Average: all 3.47 0.00 2.15 0.77 0.03 93.58 Average: 0 3.77 0.00 2.11 0.56 0.03 93.54 Average: 1 3.15 0.00 2.15 0.82 0.03 93.84 Average: 2 3.66 0.00 2.14 0.97 0.03 93.19 Average: 3 3.29 0.00 2.19 0.74 0.03 93.75