---> uname -a: Linux 129db2cf6b7f 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 7.3G 42.6G 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 7.3G 42.6G 15% /etc/resolv.conf /dev/vda1 50.0G 7.3G 42.6G 15% /etc/hostname /dev/vda1 50.0G 7.3G 42.6G 15% /etc/hosts /dev/vda1 50.0G 7.3G 42.6G 15% /w/workspace/xfoundry_device-modbus-go_master /dev/vda1 50.0G 7.3G 42.6G 15% /w/workspace/xfoundry_device-modbus-go_master@tmp /dev/vda1 50.0G 7.3G 42.6G 15% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1838 740 81 0 1015 1033 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) 05/18/20 _x86_64_ (4 CPU) 19:11:43 LINUX RESTART 19:13:01 tps rtps wtps bread/s bwrtn/s 19:14:01 32.68 19.63 13.05 3913.43 939.15 19:15:01 11.73 1.57 10.16 81.55 2047.02 19:16:01 2.37 0.00 2.37 0.00 80.26 19:17:01 0.32 0.00 0.32 0.00 3.61 19:18:01 0.33 0.00 0.33 0.00 4.96 19:19:01 0.23 0.00 0.23 0.00 3.11 19:20:01 0.27 0.00 0.27 0.00 3.60 19:21:01 0.25 0.00 0.25 0.00 3.06 19:22:01 0.28 0.00 0.28 0.00 3.65 19:23:01 0.27 0.00 0.27 0.00 3.13 19:24:01 0.28 0.00 0.28 0.00 3.20 19:25:01 0.32 0.00 0.32 0.00 4.58 19:26:01 0.25 0.00 0.25 0.00 2.45 19:27:01 33.65 3.03 30.62 392.81 17793.61 19:28:01 252.23 134.89 117.34 4868.11 31338.41 19:29:01 103.86 26.78 77.09 1441.20 14151.97 Average: 27.48 11.63 15.85 669.14 4152.40 19:13:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:14:01 121892 1760412 93.52 2620 1226700 994456 33.93 406876 1191888 58532 19:15:01 118772 1763532 93.69 2620 1229524 923696 31.52 410868 1189328 12 19:16:01 122708 1759596 93.48 2620 1229532 899908 30.70 407768 1189108 8 19:17:01 122756 1759548 93.48 2620 1229532 899908 30.70 407668 1189108 8 19:18:01 121624 1760680 93.54 2620 1229540 900052 30.71 408700 1189108 8 19:19:01 121992 1760312 93.52 2620 1229544 900004 30.71 408240 1189108 8 19:20:01 133036 1749268 92.93 2620 1229548 900060 30.71 398304 1188644 8 19:21:01 132912 1749392 92.94 2620 1229552 900036 30.71 397952 1188644 8 19:22:01 133116 1749188 92.93 2620 1229564 900036 30.71 398220 1188644 8 19:23:01 141208 1741096 92.50 2620 1229568 900036 30.71 390508 1187896 8 19:24:01 140872 1741432 92.52 2620 1229568 900108 30.71 391060 1187896 8 19:25:01 141316 1740988 92.49 2620 1229576 900036 30.71 390620 1187896 8 19:26:01 141308 1740996 92.49 2620 1229580 900036 30.71 390656 1187896 8 19:27:01 216516 1665788 88.50 2620 1090300 1000212 34.13 409296 1060628 67392 19:28:01 76796 1805508 95.92 2620 1133656 1125516 38.40 585624 996080 46068 19:29:01 216492 1665812 88.50 2568 949112 1041108 35.52 563276 810040 104 Average: 137707 1744597 92.68 2617 1197150 936576 31.96 422852 1145120 10762 19:13:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 19:14:01 vethbf3230b 0.00 0.18 0.00 0.02 0.00 0.00 0.00 19:14:01 eth0 471.80 298.90 1040.54 86.49 0.00 0.00 0.00 19:14:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 19:14:01 docker0 0.00 0.10 0.00 0.01 0.00 0.00 0.00 19:15:01 eth0 17.57 12.82 17.19 13.25 0.00 0.00 0.00 19:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:15:01 docker0 1.60 1.15 0.32 3.18 0.00 0.00 0.00 19:16:01 eth0 0.25 0.08 0.01 0.01 0.00 0.00 0.00 19:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:17:01 eth0 1.43 0.08 0.11 0.01 0.00 0.00 0.00 19:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:18:01 eth0 0.55 0.40 0.27 0.21 0.00 0.00 0.00 19:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:19:01 eth0 0.23 0.15 0.08 0.07 0.00 0.00 0.00 19:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:20:01 eth0 0.22 0.22 0.09 0.02 0.00 0.00 0.00 19:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:21:01 eth0 0.15 0.08 0.01 0.01 0.00 0.00 0.00 19:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:22:01 eth0 0.03 0.02 0.00 0.00 0.00 0.00 0.00 19:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:23:01 eth0 0.05 0.07 0.00 0.01 0.00 0.00 0.00 19:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:24:01 eth0 0.32 0.22 0.14 0.07 0.00 0.00 0.00 19:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:25:01 eth0 0.08 0.13 0.01 0.01 0.00 0.00 0.00 19:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:26:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 19:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:27:01 eth0 145.12 119.96 3762.42 11.06 0.00 0.00 0.00 19:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:28:01 eth0 229.70 189.94 3445.44 80.59 0.00 0.00 0.00 19:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:28:01 docker0 23.93 23.03 2.76 51.14 0.00 0.00 0.00 19:29:01 vethcccbd31 1.23 0.92 0.19 0.17 0.00 0.00 0.00 19:29:01 eth0 946.31 686.58 8461.99 246.99 0.00 0.00 0.00 19:29:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 19:29:01 docker0 47.06 46.89 4.31 197.86 0.00 0.00 0.00 Average: vethcccbd31 0.08 0.06 0.01 0.01 0.00 0.00 0.00 Average: eth0 59.15 42.91 528.90 15.44 0.00 0.00 0.00 Average: lo 0.01 0.01 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.94 2.93 0.27 12.37 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) 05/18/20 _x86_64_ (4 CPU) 19:11:43 LINUX RESTART 19:13:01 CPU %user %nice %system %iowait %steal %idle 19:14:01 all 8.42 0.00 2.01 0.69 0.01 88.88 19:14:01 0 7.64 0.00 2.86 0.47 0.00 89.03 19:14:01 1 9.76 0.00 1.54 0.97 0.00 87.73 19:14:01 2 6.49 0.00 2.06 0.99 0.00 90.46 19:14:01 3 9.78 0.00 1.59 0.32 0.02 88.29 19:15:01 all 1.10 0.00 0.37 0.15 0.00 98.39 19:15:01 0 1.45 0.00 0.30 0.03 0.00 98.22 19:15:01 1 0.73 0.00 0.35 0.52 0.02 98.38 19:15:01 2 0.88 0.00 0.45 0.00 0.02 98.65 19:15:01 3 1.30 0.00 0.37 0.00 0.00 98.33 19:16:01 all 0.18 0.00 0.03 0.00 0.00 99.79 19:16:01 0 0.08 0.00 0.03 0.00 0.00 99.88 19:16:01 1 0.05 0.00 0.05 0.00 0.00 99.90 19:16:01 2 0.03 0.00 0.02 0.00 0.00 99.95 19:16:01 3 0.57 0.00 0.02 0.00 0.00 99.42 19:17:01 all 0.16 0.00 0.03 0.00 0.00 99.80 19:17:01 0 0.05 0.00 0.03 0.00 0.00 99.92 19:17:01 1 0.08 0.00 0.02 0.00 0.00 99.90 19:17:01 2 0.02 0.00 0.03 0.00 0.00 99.95 19:17:01 3 0.50 0.00 0.03 0.00 0.00 99.47 19:18:01 all 0.19 0.00 0.04 0.00 0.00 99.78 19:18:01 0 0.03 0.00 0.03 0.00 0.00 99.93 19:18:01 1 0.13 0.00 0.03 0.00 0.00 99.83 19:18:01 2 0.08 0.00 0.05 0.00 0.00 99.87 19:18:01 3 0.50 0.00 0.03 0.00 0.00 99.47 19:19:01 all 0.18 0.00 0.03 0.00 0.00 99.78 19:19:01 0 0.07 0.00 0.03 0.00 0.00 99.90 19:19:01 1 0.05 0.00 0.05 0.00 0.00 99.90 19:19:01 2 0.07 0.00 0.03 0.00 0.00 99.90 19:19:01 3 0.55 0.00 0.02 0.00 0.00 99.43 19:20:01 all 0.17 0.00 0.04 0.00 0.00 99.79 19:20:01 0 0.03 0.00 0.02 0.00 0.00 99.95 19:20:01 1 0.07 0.00 0.03 0.00 0.00 99.90 19:20:01 2 0.07 0.00 0.03 0.00 0.00 99.90 19:20:01 3 0.53 0.00 0.03 0.00 0.00 99.43 19:21:01 all 0.17 0.00 0.03 0.00 0.00 99.80 19:21:01 0 0.05 0.00 0.03 0.00 0.00 99.92 19:21:01 1 0.05 0.00 0.05 0.00 0.00 99.90 19:21:01 2 0.02 0.00 0.02 0.00 0.00 99.97 19:21:01 3 0.53 0.00 0.02 0.00 0.00 99.45 19:22:01 all 0.18 0.00 0.03 0.00 0.00 99.79 19:22:01 0 0.03 0.00 0.03 0.00 0.00 99.93 19:22:01 1 0.07 0.00 0.02 0.00 0.00 99.92 19:22:01 2 0.05 0.00 0.03 0.00 0.00 99.92 19:22:01 3 0.55 0.00 0.03 0.00 0.00 99.42 19:23:01 all 0.16 0.00 0.03 0.00 0.00 99.80 19:23:01 0 0.03 0.00 0.02 0.00 0.00 99.95 19:23:01 1 0.05 0.00 0.03 0.00 0.00 99.92 19:23:01 2 0.05 0.00 0.05 0.00 0.00 99.90 19:23:01 3 0.52 0.00 0.03 0.00 0.00 99.45 19:24:01 all 0.18 0.00 0.03 0.00 0.00 99.79 19:24:01 0 0.03 0.00 0.02 0.00 0.00 99.95 19:24:01 1 0.08 0.00 0.05 0.00 0.00 99.87 19:24:01 2 0.08 0.00 0.03 0.00 0.00 99.88 19:24:01 3 0.55 0.00 0.03 0.00 0.00 99.42 19:25:01 all 0.17 0.00 0.03 0.00 0.00 99.80 19:25:01 0 0.15 0.00 0.03 0.00 0.00 99.82 19:25:01 1 0.03 0.00 0.03 0.00 0.00 99.93 19:25:01 2 0.07 0.00 0.05 0.00 0.00 99.88 19:25:01 3 0.42 0.00 0.02 0.00 0.00 99.57 19:26:01 all 0.17 0.00 0.03 0.00 0.00 99.80 19:26:01 0 0.52 0.00 0.03 0.00 0.00 99.45 19:26:01 1 0.08 0.00 0.03 0.00 0.00 99.88 19:26:01 2 0.05 0.00 0.03 0.00 0.00 99.92 19:26:01 3 0.03 0.00 0.02 0.00 0.00 99.95 19:27:01 all 4.06 0.00 1.92 0.27 0.01 93.75 19:27:01 0 4.13 0.00 1.91 0.18 0.00 93.78 19:27:01 1 3.79 0.00 1.75 0.03 0.02 94.40 19:27:01 2 4.33 0.00 1.94 0.80 0.02 92.92 19:27:01 3 3.99 0.00 2.09 0.08 0.00 93.84 19:28:01 all 10.55 0.00 5.06 4.09 0.02 80.28 19:28:01 0 10.76 0.00 5.21 3.30 0.02 80.71 19:28:01 1 10.55 0.00 4.92 8.97 0.02 75.53 19:28:01 2 10.05 0.00 5.22 1.70 0.03 83.01 19:28:01 3 10.85 0.00 4.87 2.39 0.03 81.85 19:29:01 all 5.82 0.00 3.36 2.51 0.03 88.28 19:29:01 0 5.15 0.00 3.20 3.09 0.02 88.54 19:29:01 1 5.63 0.00 3.82 3.42 0.03 87.10 19:29:01 2 7.18 0.00 3.00 3.15 0.02 86.64 19:29:01 3 5.32 0.00 3.46 0.35 0.02 90.86 Average: all 1.98 0.00 0.81 0.48 0.00 96.72 Average: 0 1.88 0.00 0.86 0.44 0.00 96.82 Average: 1 1.94 0.00 0.80 0.86 0.01 96.39 Average: 2 1.84 0.00 0.81 0.41 0.01 96.93 Average: 3 2.27 0.00 0.79 0.20 0.00 96.74