---> uname -a: Linux 22b44b473c9f 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 736 80 0 1020 1036 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) 04/18/20 _x86_64_ (4 CPU) 03:44:40 LINUX RESTART 03:45:01 tps rtps wtps bread/s bwrtn/s 03:46:01 79.96 37.52 42.43 4980.72 5635.74 03:47:02 3.30 0.00 3.30 0.00 102.25 03:48:01 0.30 0.00 0.30 0.00 4.12 03:49:01 0.30 0.00 0.30 0.00 3.88 03:50:01 0.20 0.00 0.20 0.00 2.96 03:51:01 0.37 0.00 0.37 0.00 5.33 03:52:01 0.37 0.02 0.35 0.13 3.83 03:53:01 0.28 0.00 0.28 0.00 3.50 03:54:01 0.27 0.00 0.27 0.00 3.88 03:55:01 0.27 0.00 0.27 0.00 3.61 03:56:01 155.81 91.53 64.29 2737.40 25747.50 03:57:01 181.72 44.51 137.22 2796.01 32270.71 Average: 35.32 14.49 20.83 877.69 5324.78 03:45:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:46:01 105148 1777156 94.41 2620 1210240 927492 31.65 434068 1177600 16 03:47:02 112460 1769844 94.03 2620 1210272 901264 30.75 432420 1174928 16 03:48:01 111784 1770520 94.06 2620 1210284 901288 30.75 434972 1172576 8 03:49:01 112828 1769476 94.01 2620 1210284 895168 30.54 439112 1168188 20 03:50:01 114436 1767868 93.92 2620 1210292 894940 30.53 437924 1168188 8 03:51:01 113908 1768396 93.95 2620 1210296 895012 30.54 438300 1168188 8 03:52:01 114244 1768060 93.93 2620 1210304 894940 30.53 437824 1168188 8 03:53:01 116856 1765448 93.79 2620 1210308 894940 30.53 435416 1168188 8 03:54:01 116584 1765720 93.81 2620 1210316 894940 30.53 435420 1168192 8 03:55:01 130424 1751880 93.07 2620 1210320 894940 30.53 421552 1168092 8 03:56:01 110004 1772300 94.16 2620 1175496 966092 32.96 422584 1159964 67436 03:57:01 64164 1818140 96.59 2620 1085332 994092 33.92 605792 927580 88692 Average: 110237 1772067 94.14 2620 1196979 912926 31.15 447949 1149156 13020 03:45:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:46:01 eth0 415.98 271.35 1003.80 89.41 0.00 0.00 0.00 03:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:46:01 docker0 1.38 1.12 0.27 2.96 0.00 0.00 0.00 03:47:02 eth0 1.58 0.32 0.37 0.14 0.00 0.00 0.00 03:47:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:47:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:48:01 eth0 1.51 0.58 0.59 0.46 0.00 0.00 0.00 03:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:49:01 eth0 0.55 0.47 0.27 0.21 0.00 0.00 0.00 03:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:50:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 03:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:51:01 eth0 0.32 0.20 0.14 0.07 0.00 0.00 0.00 03:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:52:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 03:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:53:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 03:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:54:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 03:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:55:01 eth0 0.07 0.07 0.01 0.01 0.00 0.00 0.00 03:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:56:01 eth0 131.62 110.17 3492.66 12.45 0.00 0.00 0.00 03:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:57:01 veth46223fe 36.75 43.29 2.44 251.01 0.00 0.00 0.00 03:57:01 eth0 851.30 629.41 8243.79 185.98 0.00 0.00 0.00 03:57:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 03:57:01 docker0 61.98 63.50 5.06 301.81 0.00 0.00 0.00 Average: veth46223fe 3.07 3.61 0.20 20.96 0.00 0.00 0.00 Average: eth0 71.07 52.55 688.27 15.53 0.00 0.00 0.00 Average: lo 0.01 0.01 0.00 0.00 0.00 0.00 0.00 Average: docker0 5.18 5.30 0.42 25.20 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) 04/18/20 _x86_64_ (4 CPU) 03:44:40 LINUX RESTART 03:45:01 CPU %user %nice %system %iowait %steal %idle 03:46:01 all 13.03 0.00 5.50 1.61 0.02 79.84 03:46:01 0 12.96 0.00 6.23 0.67 0.02 80.13 03:46:01 1 12.64 0.00 5.38 1.24 0.03 80.70 03:46:01 2 13.73 0.00 4.91 1.98 0.02 79.36 03:46:01 3 12.78 0.00 5.50 2.56 0.03 79.12 03:47:02 all 0.19 0.00 0.07 0.00 0.00 99.74 03:47:02 0 0.02 0.00 0.02 0.00 0.00 99.97 03:47:02 1 0.33 0.00 0.10 0.00 0.00 99.57 03:47:02 2 0.05 0.00 0.08 0.00 0.00 99.87 03:47:02 3 0.33 0.00 0.07 0.00 0.00 99.60 03:48:01 all 0.18 0.00 0.06 0.00 0.00 99.76 03:48:01 0 0.07 0.00 0.03 0.00 0.00 99.90 03:48:01 1 0.47 0.00 0.07 0.00 0.00 99.46 03:48:01 2 0.10 0.00 0.07 0.00 0.00 99.83 03:48:01 3 0.10 0.00 0.07 0.00 0.00 99.83 03:49:01 all 0.19 0.00 0.05 0.00 0.00 99.75 03:49:01 0 0.07 0.00 0.05 0.00 0.00 99.88 03:49:01 1 0.55 0.00 0.03 0.00 0.00 99.42 03:49:01 2 0.05 0.00 0.05 0.00 0.02 99.88 03:49:01 3 0.10 0.00 0.07 0.00 0.00 99.83 03:50:01 all 0.18 0.00 0.05 0.00 0.00 99.77 03:50:01 0 0.02 0.00 0.02 0.00 0.00 99.97 03:50:01 1 0.27 0.00 0.05 0.00 0.00 99.68 03:50:01 2 0.37 0.00 0.07 0.00 0.00 99.57 03:50:01 3 0.07 0.00 0.03 0.00 0.00 99.90 03:51:01 all 0.08 0.00 0.05 0.00 0.00 99.88 03:51:01 0 0.05 0.00 0.03 0.00 0.00 99.92 03:51:01 1 0.08 0.00 0.05 0.00 0.00 99.87 03:51:01 2 0.12 0.00 0.05 0.00 0.00 99.83 03:51:01 3 0.07 0.00 0.07 0.00 0.02 99.85 03:52:01 all 0.15 0.00 0.06 0.00 0.00 99.78 03:52:01 0 0.42 0.00 0.05 0.00 0.00 99.53 03:52:01 1 0.05 0.00 0.07 0.00 0.00 99.88 03:52:01 2 0.05 0.00 0.05 0.00 0.00 99.90 03:52:01 3 0.08 0.00 0.07 0.00 0.00 99.85 03:53:01 all 0.18 0.00 0.05 0.00 0.00 99.77 03:53:01 0 0.52 0.00 0.02 0.00 0.00 99.47 03:53:01 1 0.08 0.00 0.05 0.00 0.00 99.87 03:53:01 2 0.05 0.00 0.03 0.00 0.00 99.92 03:53:01 3 0.07 0.00 0.07 0.00 0.00 99.87 03:54:01 all 0.18 0.00 0.05 0.00 0.00 99.77 03:54:01 0 0.50 0.00 0.05 0.00 0.00 99.45 03:54:01 1 0.05 0.00 0.07 0.00 0.02 99.87 03:54:01 2 0.08 0.00 0.05 0.00 0.00 99.87 03:54:01 3 0.10 0.00 0.05 0.00 0.00 99.85 03:55:01 all 0.18 0.00 0.05 0.00 0.00 99.77 03:55:01 0 0.50 0.00 0.02 0.00 0.00 99.48 03:55:01 1 0.07 0.00 0.05 0.00 0.00 99.88 03:55:01 2 0.07 0.00 0.05 0.00 0.00 99.88 03:55:01 3 0.08 0.00 0.05 0.00 0.00 99.87 03:56:01 all 5.61 0.00 3.30 0.88 0.01 90.20 03:56:01 0 5.22 0.00 3.34 0.45 0.02 90.98 03:56:01 1 5.88 0.00 2.83 1.89 0.00 89.40 03:56:01 2 5.94 0.00 3.12 0.45 0.02 90.47 03:56:01 3 5.38 0.00 3.94 0.74 0.02 89.92 03:57:01 all 12.46 0.00 7.98 2.04 0.03 77.50 03:57:01 0 10.64 0.00 8.18 0.75 0.00 80.44 03:57:01 1 14.18 0.00 7.65 2.91 0.03 75.23 03:57:01 2 12.80 0.00 8.67 2.32 0.03 76.18 03:57:01 3 12.24 0.00 7.40 2.18 0.02 78.15 Average: all 2.70 0.00 1.43 0.38 0.01 95.49 Average: 0 2.56 0.00 1.49 0.15 0.00 95.79 Average: 1 2.87 0.00 1.36 0.50 0.01 95.27 Average: 2 2.77 0.00 1.42 0.39 0.01 95.41 Average: 3 2.60 0.00 1.44 0.45 0.01 95.50