---> uname -a: Linux 660b54e17ed3 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: 2933.442 BogoMIPS: 5866.88 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 744 84 0 1009 1028 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) 04/21/20 _x86_64_ (4 CPU) 07:12:41 LINUX RESTART 07:13:01 tps rtps wtps bread/s bwrtn/s 07:14:01 87.95 33.63 54.32 4884.43 19145.13 07:15:01 3.15 0.00 3.15 0.00 115.72 07:16:01 0.53 0.00 0.53 0.00 7.43 07:17:01 0.25 0.00 0.25 0.00 3.05 07:18:01 0.20 0.00 0.20 0.00 3.00 07:19:01 0.37 0.00 0.37 0.00 5.46 07:20:01 1.07 0.17 0.90 5.06 20.59 07:21:01 0.47 0.00 0.47 0.00 6.50 07:22:01 180.59 100.62 79.97 3900.25 26219.93 07:23:01 22.71 3.36 19.35 132.16 2762.75 07:24:02 192.34 51.96 140.39 2988.25 32456.97 Average: 44.53 17.25 27.27 1083.11 7343.06 07:13:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:14:01 113988 1768316 93.94 2620 1219852 949612 32.40 434416 1167856 12 07:15:01 123140 1759164 93.46 2620 1219852 915828 31.25 428908 1167732 16 07:16:01 123496 1758808 93.44 2620 1219856 913760 31.18 428748 1167720 16 07:17:01 125040 1757264 93.36 2620 1219856 900372 30.72 427312 1167716 16 07:18:01 124816 1757488 93.37 2620 1219864 900456 30.72 427924 1167716 16 07:19:01 124144 1758160 93.40 2620 1219868 900552 30.73 428484 1167716 20 07:20:01 114428 1767876 93.92 2620 1220064 913408 31.17 432032 1167616 8 07:21:01 122412 1759892 93.50 2620 1220068 913360 31.16 423996 1167616 16 07:22:01 79188 1803116 95.79 2620 1123600 1165512 39.77 522196 1078112 76164 07:23:01 139760 1742544 92.58 2620 1133696 998192 34.06 492164 1055944 19460 07:24:02 243184 1639120 87.08 2588 928816 938720 32.03 537972 814668 68 Average: 130327 1751977 93.08 2617 1176854 946343 32.29 453105 1117310 8710 07:13:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 07:14:01 eth0 411.07 245.86 1008.27 87.71 0.00 0.00 0.00 07:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:14:01 docker0 1.50 1.05 0.29 3.01 0.00 0.00 0.00 07:15:01 eth0 2.43 0.72 0.98 0.23 0.00 0.00 0.00 07:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:16:01 eth0 1.35 0.70 0.60 0.37 0.00 0.00 0.00 07:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:17:01 eth0 0.50 0.08 0.02 0.04 0.00 0.00 0.00 07:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:18:01 eth0 0.80 0.23 0.28 0.02 0.00 0.00 0.00 07:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:19:01 eth0 1.42 0.60 0.70 0.45 0.00 0.00 0.00 07:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:20:01 eth0 6.83 4.03 6.67 2.65 0.00 0.00 0.00 07:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:21:01 eth0 0.95 0.58 0.71 0.40 0.00 0.00 0.00 07:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:22:01 eth0 168.89 142.77 3542.72 17.63 0.00 0.00 0.00 07:22:01 veth4c2fa4b 20.01 15.90 2.55 46.31 0.00 0.00 0.00 07:22:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 07:22:01 docker0 21.51 16.85 2.56 49.32 0.00 0.00 0.00 07:23:01 veth94f1394 0.40 0.45 0.08 0.16 0.00 0.00 0.00 07:23:01 eth0 666.63 443.81 4795.30 124.38 0.00 0.00 0.00 07:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:23:01 docker0 1.68 1.50 0.44 0.61 0.00 0.00 0.00 07:24:02 eth0 275.03 224.22 3509.62 127.61 0.00 0.00 0.00 07:24:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:24:02 docker0 33.99 36.94 1.92 251.20 0.00 0.00 0.00 Average: eth0 83.34 59.47 751.22 22.79 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 5.20 5.03 0.45 27.38 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) 04/21/20 _x86_64_ (4 CPU) 07:12:41 LINUX RESTART 07:13:01 CPU %user %nice %system %iowait %steal %idle 07:14:01 all 13.42 0.00 4.41 2.54 0.01 79.62 07:14:01 0 13.44 0.00 4.38 1.39 0.02 80.78 07:14:01 1 12.49 0.00 4.70 2.16 0.02 80.63 07:14:01 2 13.52 0.00 4.36 5.35 0.02 76.76 07:14:01 3 14.22 0.00 4.20 1.28 0.02 80.29 07:15:01 all 0.18 0.00 0.05 0.00 0.00 99.77 07:15:01 0 0.53 0.00 0.03 0.00 0.00 99.43 07:15:01 1 0.03 0.00 0.05 0.00 0.00 99.92 07:15:01 2 0.07 0.00 0.03 0.00 0.00 99.90 07:15:01 3 0.10 0.00 0.07 0.00 0.00 99.83 07:16:01 all 0.18 0.00 0.04 0.00 0.00 99.78 07:16:01 0 0.50 0.00 0.02 0.00 0.00 99.48 07:16:01 1 0.07 0.00 0.03 0.00 0.00 99.90 07:16:01 2 0.03 0.00 0.05 0.00 0.00 99.92 07:16:01 3 0.08 0.00 0.05 0.00 0.00 99.87 07:17:01 all 0.17 0.00 0.05 0.00 0.00 99.79 07:17:01 0 0.50 0.00 0.05 0.00 0.00 99.45 07:17:01 1 0.07 0.00 0.07 0.00 0.00 99.87 07:17:01 2 0.05 0.00 0.05 0.00 0.00 99.90 07:17:01 3 0.05 0.00 0.03 0.00 0.00 99.92 07:18:01 all 0.18 0.00 0.03 0.00 0.00 99.79 07:18:01 0 0.33 0.00 0.02 0.00 0.00 99.65 07:18:01 1 0.08 0.00 0.05 0.00 0.00 99.87 07:18:01 2 0.05 0.00 0.03 0.00 0.00 99.92 07:18:01 3 0.27 0.00 0.02 0.00 0.00 99.72 07:19:01 all 0.08 0.00 0.05 0.00 0.00 99.87 07:19:01 0 0.07 0.00 0.03 0.00 0.00 99.90 07:19:01 1 0.03 0.00 0.02 0.00 0.00 99.95 07:19:01 2 0.10 0.00 0.03 0.00 0.00 99.87 07:19:01 3 0.10 0.00 0.10 0.00 0.00 99.80 07:20:01 all 0.32 0.00 0.18 0.00 0.00 99.50 07:20:01 0 0.22 0.00 0.17 0.00 0.00 99.62 07:20:01 1 0.65 0.00 0.20 0.00 0.00 99.15 07:20:01 2 0.23 0.00 0.17 0.00 0.00 99.60 07:20:01 3 0.15 0.00 0.20 0.02 0.00 99.63 07:21:01 all 0.18 0.00 0.05 0.00 0.00 99.76 07:21:01 0 0.05 0.00 0.02 0.00 0.00 99.93 07:21:01 1 0.25 0.00 0.07 0.00 0.00 99.68 07:21:01 2 0.07 0.00 0.05 0.00 0.00 99.88 07:21:01 3 0.37 0.00 0.05 0.00 0.00 99.58 07:22:01 all 6.52 0.00 3.14 2.03 0.02 88.29 07:22:01 0 6.34 0.00 3.57 1.59 0.00 88.49 07:22:01 1 6.71 0.00 3.00 1.19 0.03 89.07 07:22:01 2 6.41 0.00 2.85 3.61 0.03 87.10 07:22:01 3 6.60 0.00 3.15 1.74 0.02 88.49 07:23:01 all 2.25 0.00 1.10 0.38 0.01 96.26 07:23:01 0 2.66 0.00 1.10 0.43 0.02 95.79 07:23:01 1 2.26 0.00 1.20 0.48 0.00 96.06 07:23:01 2 1.56 0.00 1.05 0.37 0.00 97.02 07:23:01 3 2.56 0.00 1.07 0.22 0.02 96.14 07:24:02 all 12.02 0.00 6.72 3.11 0.05 78.11 07:24:02 0 14.94 0.00 6.47 2.03 0.05 76.52 07:24:02 1 11.58 0.00 7.34 2.97 0.07 78.04 07:24:02 2 10.40 0.00 6.36 5.23 0.07 77.94 07:24:02 3 11.13 0.00 6.71 2.18 0.03 79.95 Average: all 3.21 0.00 1.43 0.73 0.01 94.62 Average: 0 3.58 0.00 1.43 0.49 0.01 94.49 Average: 1 3.10 0.00 1.51 0.62 0.01 94.76 Average: 2 2.94 0.00 1.36 1.32 0.01 94.37 Average: 3 3.22 0.00 1.41 0.49 0.01 94.87