---> uname -a: Linux 974710d3f8fa 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% /w/workspace/xfoundry_device-modbus-go_master /dev/vda1 50.0G 7.5G 42.5G 15% /w/workspace/xfoundry_device-modbus-go_master@tmp /dev/vda1 50.0G 7.5G 42.5G 15% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1838 748 66 0 1022 1024 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) 21:53:52 LINUX RESTART 21:55:01 tps rtps wtps bread/s bwrtn/s 21:56:01 3.56 0.00 3.56 0.00 111.12 21:57:01 0.25 0.00 0.25 0.00 2.98 21:58:01 0.70 0.00 0.70 0.00 8.49 21:59:01 0.58 0.00 0.58 0.00 8.73 22:00:01 0.43 0.00 0.43 0.00 6.48 22:01:01 0.20 0.02 0.18 0.13 2.18 22:02:01 0.50 0.13 0.37 2.66 6.59 22:03:02 0.20 0.00 0.20 0.00 2.83 22:04:01 0.19 0.00 0.19 0.00 2.34 22:05:01 162.44 90.54 71.89 3395.80 26084.92 22:06:01 165.92 36.88 129.04 1946.05 30253.61 Average: 30.50 11.62 18.89 486.70 5144.19 21:55:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 21:56:01 113028 1769276 94.00 2620 1210616 930712 31.76 454356 1152824 8 21:57:01 114276 1768028 93.93 2620 1210620 922032 31.46 453716 1152524 8 21:58:01 115096 1767208 93.89 2620 1210628 903760 30.84 452324 1152520 8 21:59:01 115532 1766772 93.86 2620 1210632 903764 30.84 452660 1152520 12 22:00:01 115480 1766824 93.86 2620 1210640 904100 30.85 452816 1152520 20 22:01:01 113924 1768380 93.95 2620 1210644 906700 30.94 454052 1152520 12 22:02:01 121168 1761136 93.56 2620 1210800 904504 30.86 447156 1152608 20 22:03:02 120488 1761816 93.60 2620 1210804 904624 30.87 447748 1152608 20 22:04:01 121112 1761192 93.57 2620 1210812 904504 30.86 447068 1152608 12 22:05:01 66116 1816188 96.49 2620 1168184 1013896 34.59 478124 1149596 64680 22:06:01 78908 1803396 95.81 2620 1081304 987552 33.69 542416 976480 76200 Average: 108648 1773656 94.23 2620 1195062 926013 31.60 462040 1136303 12818 21:55:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 21:56:01 eth0 2.30 0.87 1.02 0.56 0.00 0.00 0.00 21:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:57:01 eth0 1.87 0.48 0.61 0.42 0.00 0.00 0.00 21:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:58:01 eth0 1.93 0.38 0.37 0.20 0.00 0.00 0.00 21:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:59:01 eth0 2.17 0.62 0.63 0.37 0.00 0.00 0.00 21:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:00:01 eth0 1.40 0.42 0.46 0.30 0.00 0.00 0.00 22:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:01:01 eth0 1.25 0.72 0.56 0.41 0.00 0.00 0.00 22:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:02:01 eth0 0.17 0.07 0.01 0.01 0.00 0.00 0.00 22:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:03:02 eth0 0.90 0.23 0.30 0.20 0.00 0.00 0.00 22:03:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:03:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:04:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 22:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:05:01 veth53c3a34 0.00 0.05 0.00 0.00 0.00 0.00 0.00 22:05:01 eth0 581.80 393.24 4544.49 106.98 0.00 0.00 0.00 22:05:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 22:05:01 docker0 1.95 1.62 0.31 3.11 0.00 0.00 0.00 22:06:01 veth5b56a3f 2.56 1.83 0.19 0.43 0.00 0.00 0.00 22:06:01 eth0 256.39 224.89 3457.34 84.79 0.00 0.00 0.00 22:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:06:01 docker0 27.11 21.36 3.13 48.32 0.00 0.00 0.00 Average: veth5b56a3f 0.23 0.17 0.02 0.04 0.00 0.00 0.00 Average: eth0 76.33 56.29 728.67 17.46 0.00 0.00 0.00 Average: lo 0.01 0.01 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.65 2.09 0.31 4.68 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) 21:53:52 LINUX RESTART 21:55:01 CPU %user %nice %system %iowait %steal %idle 21:56:01 all 0.23 0.00 0.08 0.00 0.01 99.68 21:56:01 0 0.58 0.00 0.03 0.00 0.02 99.37 21:56:01 1 0.13 0.00 0.12 0.00 0.00 99.75 21:56:01 2 0.10 0.00 0.08 0.00 0.00 99.82 21:56:01 3 0.12 0.00 0.08 0.00 0.02 99.78 21:57:01 all 0.18 0.00 0.07 0.00 0.00 99.75 21:57:01 0 0.45 0.00 0.08 0.00 0.00 99.47 21:57:01 1 0.05 0.00 0.05 0.00 0.02 99.88 21:57:01 2 0.10 0.00 0.03 0.00 0.02 99.85 21:57:01 3 0.10 0.00 0.08 0.00 0.02 99.80 21:58:01 all 0.09 0.00 0.06 0.00 0.00 99.85 21:58:01 0 0.10 0.00 0.08 0.00 0.00 99.82 21:58:01 1 0.10 0.00 0.07 0.00 0.00 99.83 21:58:01 2 0.08 0.00 0.07 0.00 0.00 99.85 21:58:01 3 0.08 0.00 0.02 0.00 0.00 99.90 21:59:01 all 0.20 0.00 0.05 0.00 0.00 99.75 21:59:01 0 0.05 0.00 0.02 0.00 0.00 99.93 21:59:01 1 0.50 0.00 0.05 0.00 0.00 99.45 21:59:01 2 0.18 0.00 0.10 0.00 0.00 99.72 21:59:01 3 0.07 0.00 0.03 0.00 0.00 99.90 22:00:01 all 0.18 0.00 0.05 0.00 0.00 99.77 22:00:01 0 0.07 0.00 0.07 0.00 0.00 99.87 22:00:01 1 0.53 0.00 0.03 0.00 0.00 99.43 22:00:01 2 0.05 0.00 0.05 0.00 0.00 99.90 22:00:01 3 0.10 0.00 0.05 0.00 0.00 99.85 22:01:01 all 0.20 0.00 0.06 0.00 0.00 99.75 22:01:01 0 0.10 0.00 0.07 0.00 0.00 99.83 22:01:01 1 0.52 0.00 0.05 0.00 0.00 99.43 22:01:01 2 0.07 0.00 0.05 0.00 0.00 99.88 22:01:01 3 0.08 0.00 0.07 0.00 0.00 99.85 22:02:01 all 0.17 0.00 0.05 0.00 0.00 99.77 22:02:01 0 0.03 0.00 0.03 0.02 0.00 99.92 22:02:01 1 0.55 0.00 0.05 0.00 0.00 99.40 22:02:01 2 0.07 0.00 0.07 0.00 0.02 99.85 22:02:01 3 0.07 0.00 0.05 0.00 0.00 99.88 22:03:02 all 0.18 0.00 0.04 0.00 0.00 99.78 22:03:02 0 0.03 0.00 0.03 0.00 0.00 99.93 22:03:02 1 0.05 0.00 0.02 0.00 0.00 99.93 22:03:02 2 0.07 0.00 0.07 0.00 0.00 99.87 22:03:02 3 0.57 0.00 0.03 0.00 0.00 99.40 22:04:01 all 0.18 0.00 0.04 0.00 0.00 99.78 22:04:01 0 0.03 0.00 0.02 0.00 0.00 99.95 22:04:01 1 0.07 0.00 0.05 0.00 0.00 99.88 22:04:01 2 0.53 0.00 0.05 0.00 0.00 99.42 22:04:01 3 0.08 0.00 0.05 0.00 0.00 99.86 22:05:01 all 6.23 0.00 3.66 0.96 0.02 89.12 22:05:01 0 7.13 0.00 3.41 0.65 0.03 88.78 22:05:01 1 6.14 0.00 3.71 0.70 0.03 89.41 22:05:01 2 6.37 0.00 4.32 1.25 0.00 88.05 22:05:01 3 5.29 0.00 3.23 1.21 0.02 90.26 22:06:01 all 11.04 0.00 7.40 2.40 0.03 79.13 22:06:01 0 10.32 0.00 7.17 1.46 0.02 81.03 22:06:01 1 11.81 0.00 7.42 3.07 0.02 77.68 22:06:01 2 11.25 0.00 6.28 3.35 0.03 79.08 22:06:01 3 10.77 0.00 8.72 1.74 0.03 78.74 Average: all 1.70 0.00 1.04 0.30 0.01 96.95 Average: 0 1.70 0.00 0.99 0.19 0.01 97.11 Average: 1 1.85 0.00 1.05 0.34 0.01 96.76 Average: 2 1.70 0.00 1.01 0.42 0.01 96.87 Average: 3 1.56 0.00 1.12 0.27 0.01 97.05