---> uname -a: Linux fe477273bb60 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 6.3G 43.7G 13% / 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 6.3G 43.7G 13% /etc/resolv.conf /dev/vda1 50.0G 6.3G 43.7G 13% /etc/hostname /dev/vda1 50.0G 6.3G 43.7G 13% /etc/hosts /dev/vda1 50.0G 6.3G 43.7G 13% /w/workspace/xfoundry_device-modbus-go_PR-139@tmp /dev/vda1 50.0G 6.3G 43.7G 13% /var/log/sa /dev/vda1 50.0G 6.3G 43.7G 13% /w/workspace/xfoundry_device-modbus-go_PR-139 ---> free -m: total used free shared buff/cache available Mem: 1838 596 69 0 1172 1136 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 6: eth0@if7: 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) 19:54:21 LINUX RESTART 19:55:01 tps rtps wtps bread/s bwrtn/s 19:56:01 20.92 7.33 13.59 1940.65 2791.31 19:57:01 2.63 0.00 2.63 0.00 91.29 19:58:01 0.27 0.00 0.27 0.00 3.61 19:59:01 0.23 0.00 0.23 0.00 2.83 20:00:01 0.23 0.00 0.23 0.00 3.36 20:01:01 0.42 0.02 0.40 0.13 6.58 Average: 4.12 1.22 2.89 323.52 483.24 19:55:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:56:01 113360 1768944 93.98 2620 1229860 915712 31.24 426548 1178084 16 19:57:01 120544 1761760 93.60 2620 1229868 882944 30.13 423776 1174852 8 19:58:01 119520 1762784 93.65 2620 1229876 883096 30.13 425676 1173836 8 19:59:01 120744 1761560 93.59 2620 1229876 882944 30.13 424824 1173836 8 20:00:01 120216 1762088 93.61 2620 1229884 883028 30.13 425176 1173836 16 20:01:01 119808 1762496 93.64 2620 1229888 885284 30.21 425368 1173836 12 Average: 119032 1763272 93.68 2620 1229875 888835 30.33 425228 1174713 11 19:55:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 19:56:01 eth0 68.59 47.39 360.99 31.23 0.00 0.00 0.00 19:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:56:01 docker0 1.37 1.12 0.28 3.09 0.00 0.00 0.00 19:57:01 eth0 0.95 0.02 0.09 0.00 0.00 0.00 0.00 19:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:58:01 eth0 0.55 0.42 0.27 0.21 0.00 0.00 0.00 19:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:59:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 19:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:00:01 eth0 0.23 0.17 0.08 0.07 0.00 0.00 0.00 20:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:01:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 20:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 11.75 8.03 60.25 5.25 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.23 0.19 0.05 0.52 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) 19:54:21 LINUX RESTART 19:55:01 CPU %user %nice %system %iowait %steal %idle 19:56:01 all 2.77 0.00 1.30 0.10 0.01 95.83 19:56:01 0 3.04 0.00 1.60 0.10 0.00 95.25 19:56:01 1 2.53 0.00 1.19 0.15 0.00 96.14 19:56:01 2 2.52 0.00 1.24 0.03 0.02 96.19 19:56:01 3 2.97 0.00 1.15 0.08 0.02 95.78 19:57:01 all 0.18 0.00 0.05 0.00 0.00 99.77 19:57:01 0 0.03 0.00 0.03 0.00 0.00 99.93 19:57:01 1 0.07 0.00 0.05 0.00 0.00 99.88 19:57:01 2 0.08 0.00 0.07 0.00 0.00 99.85 19:57:01 3 0.55 0.00 0.03 0.00 0.00 99.42 19:58:01 all 0.20 0.00 0.04 0.00 0.00 99.77 19:58:01 0 0.07 0.00 0.05 0.00 0.00 99.88 19:58:01 1 0.10 0.00 0.05 0.00 0.02 99.83 19:58:01 2 0.08 0.00 0.02 0.00 0.00 99.90 19:58:01 3 0.53 0.00 0.03 0.00 0.00 99.43 19:59:01 all 0.18 0.00 0.04 0.00 0.00 99.78 19:59:01 0 0.02 0.00 0.00 0.00 0.02 99.97 19:59:01 1 0.05 0.00 0.07 0.00 0.00 99.88 19:59:01 2 0.18 0.00 0.03 0.00 0.00 99.78 19:59:01 3 0.45 0.00 0.05 0.00 0.00 99.50 20:00:01 all 0.18 0.00 0.03 0.00 0.00 99.79 20:00:01 0 0.05 0.00 0.03 0.00 0.00 99.92 20:00:01 1 0.07 0.00 0.03 0.00 0.00 99.90 20:00:01 2 0.55 0.00 0.03 0.00 0.00 99.42 20:00:01 3 0.03 0.00 0.03 0.00 0.00 99.93 20:01:01 all 0.18 0.00 0.04 0.00 0.00 99.78 20:01:01 0 0.07 0.00 0.03 0.00 0.00 99.90 20:01:01 1 0.07 0.00 0.05 0.00 0.00 99.88 20:01:01 2 0.53 0.00 0.03 0.00 0.00 99.43 20:01:01 3 0.05 0.00 0.03 0.00 0.02 99.90 Average: all 0.61 0.00 0.25 0.02 0.00 99.12 Average: 0 0.54 0.00 0.29 0.02 0.00 99.14 Average: 1 0.48 0.00 0.24 0.03 0.00 99.25 Average: 2 0.66 0.00 0.24 0.01 0.00 99.10 Average: 3 0.76 0.00 0.22 0.01 0.01 98.99