---> uname -a: Linux 0d07fb2381aa 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 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@tmp /dev/vda1 50.0G 6.8G 43.2G 14% /var/log/sa /dev/vda1 50.0G 6.8G 43.2G 14% /w/workspace/modbus-go_edgex-modbus-simulator ---> free -m: total used free shared buff/cache available Mem: 1838 657 65 0 1115 1081 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 22: eth0@if23: 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) 02:21:12 LINUX RESTART 02:22:01 tps rtps wtps bread/s bwrtn/s 02:23:01 105.82 46.59 59.23 4651.68 16544.75 02:24:01 18.25 0.15 18.10 4.80 2991.96 02:25:01 4.89 0.00 4.89 0.00 804.04 02:26:02 2.06 0.95 1.11 49.76 227.54 02:27:01 0.91 0.00 0.91 0.00 452.65 02:28:01 1.07 0.00 1.07 0.00 425.08 02:29:01 1.23 0.02 1.22 0.13 493.92 02:30:01 0.93 0.00 0.93 0.00 521.63 02:31:01 9.37 0.00 9.37 0.00 893.72 02:32:01 5.39 0.02 5.37 0.53 597.89 02:33:02 47.61 20.61 27.00 1943.37 5410.25 02:34:01 92.78 61.54 31.24 3837.11 5222.05 Average: 24.16 10.78 13.38 872.44 2885.15 02:22:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:23:01 147820 1734484 92.15 2620 1142764 1021968 34.87 401032 1151564 74680 02:24:01 121540 1760764 93.54 2620 1160872 1020288 34.81 411684 1166360 12332 02:25:01 101104 1781200 94.63 2620 1175428 1020420 34.82 436508 1161636 924 02:26:02 92016 1790288 95.11 2620 1185116 1017652 34.72 436156 1171064 3136 02:27:01 81192 1801112 95.69 2620 1195632 1017700 34.72 436476 1181556 2072 02:28:01 68536 1813768 96.36 2620 1207568 1017724 34.72 436712 1193504 4396 02:29:01 76404 1805900 95.94 2620 1209312 1009580 34.45 425588 1197836 1588 02:30:01 64144 1818160 96.59 2620 1220648 1009656 34.45 425704 1209184 1536 02:31:01 64016 1818288 96.60 2620 1217916 1009680 34.45 404608 1227764 2612 02:32:01 71992 1810312 96.18 2620 1220984 1009680 34.45 389564 1234420 6212 02:33:02 230116 1652188 87.77 2620 1037512 1313420 44.81 451376 1017968 106460 02:34:01 116128 1766176 93.83 2620 1176424 1021308 34.85 474280 1109024 236 Average: 102917 1779387 94.53 2620 1179181 1040756 35.51 427474 1168490 18015 02:22:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:23:01 eth0 595.89 559.61 2722.49 89.51 0.00 0.00 0.00 02:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:23:01 vethfc63245 6.00 6.25 0.42 15.34 0.00 0.00 0.00 02:23:01 docker0 6.00 6.17 0.34 15.34 0.00 0.00 0.00 02:24:01 eth0 38.44 33.78 75.06 5.92 0.00 0.00 0.00 02:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:24:01 vethfc63245 26.84 27.56 1.82 67.09 0.00 0.00 0.00 02:24:01 docker0 26.84 27.56 1.46 67.09 0.00 0.00 0.00 02:25:01 eth0 37.22 33.34 71.16 6.41 0.00 0.00 0.00 02:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:25:01 vethfc63245 24.95 25.37 1.70 62.28 0.00 0.00 0.00 02:25:01 docker0 24.95 25.37 1.36 62.28 0.00 0.00 0.00 02:26:02 eth0 30.45 27.44 68.12 2.27 0.00 0.00 0.00 02:26:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:26:02 vethfc63245 26.66 27.32 1.81 67.07 0.00 0.00 0.00 02:26:02 docker0 26.66 27.32 1.44 67.07 0.00 0.00 0.00 02:27:01 eth0 29.22 26.78 65.19 2.38 0.00 0.00 0.00 02:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:27:01 vethfc63245 25.68 26.32 1.73 63.97 0.00 0.00 0.00 02:27:01 docker0 25.68 26.32 1.38 63.97 0.00 0.00 0.00 02:28:01 eth0 34.28 31.09 98.63 2.63 0.00 0.00 0.00 02:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:28:01 vethfc63245 30.37 31.79 2.04 97.51 0.00 0.00 0.00 02:28:01 docker0 30.37 31.79 1.63 97.51 0.00 0.00 0.00 02:29:01 eth0 35.08 31.98 89.81 2.67 0.00 0.00 0.00 02:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:29:01 vethfc63245 31.36 32.21 2.12 88.70 0.00 0.00 0.00 02:29:01 docker0 31.36 32.21 1.69 88.70 0.00 0.00 0.00 02:30:01 eth0 36.17 32.97 91.30 2.55 0.00 0.00 0.00 02:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:30:01 vethfc63245 32.49 33.54 2.18 90.47 0.00 0.00 0.00 02:30:01 docker0 32.49 33.54 1.74 90.47 0.00 0.00 0.00 02:31:01 eth0 45.27 41.01 127.16 4.23 0.00 0.00 0.00 02:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:31:01 vethfc63245 38.00 39.84 2.56 123.86 0.00 0.00 0.00 02:31:01 docker0 38.00 39.84 2.04 123.86 0.00 0.00 0.00 02:32:01 eth0 48.84 43.90 141.22 4.75 0.00 0.00 0.00 02:32:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:32:01 vethfc63245 40.38 42.54 2.71 137.33 0.00 0.00 0.00 02:32:01 docker0 40.38 42.54 2.16 137.33 0.00 0.00 0.00 02:33:02 veth765ab6c 1.77 1.88 0.17 1.83 0.00 0.00 0.00 02:33:02 eth0 1113.40 985.23 4101.78 141.90 0.00 0.00 0.00 02:33:02 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 02:33:02 docker0 63.98 67.84 3.49 313.29 0.00 0.00 0.00 02:34:01 eth0 102.10 91.72 238.35 161.15 0.00 0.00 0.00 02:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:34:01 docker0 1.59 1.18 0.19 0.52 0.00 0.00 0.00 Average: eth0 92.84 85.33 343.09 24.23 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 29.09 30.21 1.58 94.26 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) 02:21:12 LINUX RESTART 02:22:01 CPU %user %nice %system %iowait %steal %idle 02:23:01 all 6.74 0.00 3.05 1.80 14.64 73.77 02:23:01 0 5.66 0.00 3.63 0.46 16.96 73.30 02:23:01 1 9.48 0.00 3.17 2.27 13.39 71.68 02:23:01 2 5.59 0.00 2.50 1.47 14.60 75.85 02:23:01 3 6.27 0.00 2.94 3.02 13.58 74.18 02:24:01 all 0.30 0.00 0.22 0.00 1.51 97.98 02:24:01 0 0.41 0.00 0.28 0.00 2.07 97.24 02:24:01 1 0.20 0.00 0.15 0.00 1.47 98.18 02:24:01 2 0.20 0.00 0.07 0.00 1.11 98.63 02:24:01 3 0.40 0.00 0.35 0.00 1.36 97.90 02:25:01 all 0.19 0.00 0.10 0.00 1.57 98.14 02:25:01 0 0.12 0.00 0.10 0.00 2.08 97.70 02:25:01 1 0.12 0.00 0.17 0.00 1.16 98.56 02:25:01 2 0.26 0.00 0.07 0.00 1.73 97.94 02:25:01 3 0.25 0.00 0.07 0.00 1.32 98.36 02:26:02 all 0.10 0.00 0.09 0.00 1.52 98.29 02:26:02 0 0.13 0.00 0.12 0.00 2.82 96.94 02:26:02 1 0.03 0.00 0.10 0.00 1.22 98.65 02:26:02 2 0.12 0.00 0.03 0.00 1.35 98.50 02:26:02 3 0.13 0.00 0.07 0.02 0.70 99.09 02:27:01 all 0.10 0.00 0.09 0.00 1.04 98.76 02:27:01 0 0.07 0.00 0.15 0.00 1.79 97.99 02:27:01 1 0.05 0.00 0.10 0.00 0.84 99.00 02:27:01 2 0.25 0.00 0.07 0.00 1.05 98.63 02:27:01 3 0.05 0.00 0.05 0.00 0.49 99.41 02:28:01 all 0.11 0.00 0.09 0.00 1.41 98.39 02:28:01 0 0.12 0.00 0.10 0.00 2.15 97.63 02:28:01 1 0.13 0.00 0.13 0.00 1.60 98.14 02:28:01 2 0.15 0.00 0.05 0.00 1.16 98.65 02:28:01 3 0.05 0.00 0.08 0.00 0.75 99.12 02:29:01 all 0.11 0.00 0.10 0.00 1.48 98.31 02:29:01 0 0.10 0.00 0.08 0.00 2.87 96.95 02:29:01 1 0.08 0.00 0.12 0.00 0.81 98.99 02:29:01 2 0.15 0.00 0.08 0.00 1.45 98.32 02:29:01 3 0.12 0.00 0.10 0.00 0.78 99.00 02:30:01 all 0.15 0.00 0.09 0.00 1.62 98.14 02:30:01 0 0.31 0.00 0.13 0.00 3.24 96.32 02:30:01 1 0.07 0.00 0.08 0.00 1.30 98.55 02:30:01 2 0.15 0.00 0.08 0.00 1.03 98.74 02:30:01 3 0.08 0.00 0.07 0.00 0.88 98.97 02:31:01 all 0.16 0.00 0.18 0.00 2.73 96.94 02:31:01 0 0.16 0.00 0.34 0.00 4.59 94.90 02:31:01 1 0.21 0.00 0.16 0.00 3.12 96.51 02:31:01 2 0.18 0.00 0.12 0.00 1.92 97.78 02:31:01 3 0.05 0.00 0.12 0.00 1.24 98.60 02:32:01 all 0.10 0.00 0.12 0.00 1.84 97.93 02:32:01 0 0.18 0.00 0.18 0.00 4.04 95.60 02:32:01 1 0.05 0.00 0.07 0.00 0.94 98.94 02:32:01 2 0.17 0.00 0.10 0.00 1.54 98.20 02:32:01 3 0.03 0.00 0.08 0.00 0.81 99.07 02:33:02 all 1.19 0.00 1.49 0.99 5.43 90.90 02:33:02 0 1.23 0.00 1.65 0.91 8.04 88.17 02:33:02 1 1.20 0.00 1.61 0.93 4.78 91.48 02:33:02 2 1.24 0.00 1.40 1.21 4.83 91.32 02:33:02 3 1.08 0.00 1.31 0.94 4.04 92.62 02:34:01 all 4.91 0.00 3.74 2.21 18.30 70.84 02:34:01 0 4.46 0.00 3.98 1.04 20.05 70.46 02:34:01 1 6.69 0.00 4.80 6.06 18.30 64.15 02:34:01 2 4.80 0.00 3.09 0.86 17.09 74.16 02:34:01 3 3.70 0.00 3.10 0.91 17.77 74.52 Average: all 1.20 0.00 0.79 0.42 4.47 93.12 Average: 0 1.09 0.00 0.91 0.20 5.95 91.85 Average: 1 1.54 0.00 0.90 0.78 4.11 92.68 Average: 2 1.12 0.00 0.65 0.30 4.12 93.81 Average: 3 1.03 0.00 0.71 0.41 3.70 94.14