---> uname -a: Linux 5eb82293a3f4 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 6.4G 43.6G 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 6.4G 43.6G 13% /etc/resolv.conf /dev/vda1 50.0G 6.4G 43.6G 13% /etc/hostname /dev/vda1 50.0G 6.4G 43.6G 13% /etc/hosts /dev/vda1 50.0G 6.4G 43.6G 13% /w/workspace/xfoundry_device-modbus-go_PR-132 /dev/vda1 50.0G 6.4G 43.6G 13% /w/workspace/xfoundry_device-modbus-go_PR-132@tmp /dev/vda1 50.0G 6.4G 43.6G 13% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1838 615 74 0 1147 1117 Swap: 1023 0 1023 ---> 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) 03/25/20 _x86_64_ (4 CPU) 02:03:28 LINUX RESTART 02:04:01 tps rtps wtps bread/s bwrtn/s 02:05:01 47.30 12.75 34.55 2586.42 3366.74 02:06:01 2.36 0.00 2.36 0.00 83.29 02:07:01 0.30 0.00 0.30 0.00 4.53 02:08:01 0.63 0.00 0.63 0.00 9.43 02:09:01 0.68 0.00 0.68 0.00 8.29 02:10:01 0.67 0.00 0.67 0.00 8.06 02:11:01 4.46 3.80 0.67 350.64 9.66 Average: 8.06 2.36 5.70 419.74 498.79 02:04:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:05:01 100040 1782264 94.69 2620 1230824 932368 31.81 449284 1174732 16 02:06:01 104964 1777340 94.42 2620 1230844 906052 30.91 447232 1172600 20 02:07:01 104008 1778296 94.47 2620 1230852 906268 30.92 448564 1172604 20 02:08:01 104236 1778068 94.46 2620 1230852 906208 30.92 448256 1172600 8 02:09:01 105012 1777292 94.42 2620 1230860 906112 30.92 447740 1172600 16 02:10:01 104568 1777736 94.44 2620 1230868 906136 30.92 447776 1172600 8 02:11:01 84988 1797316 95.48 2620 1241412 907788 30.97 451208 1181612 24 Average: 101117 1781187 94.63 2620 1232359 910133 31.05 448580 1174193 16 02:04:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:05:01 eth0 426.70 290.30 987.55 89.58 0.00 0.00 0.00 02:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:05:01 docker0 1.73 1.48 0.27 2.85 0.00 0.00 0.00 02:06:01 eth0 1.13 0.08 0.10 0.02 0.00 0.00 0.00 02:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:07:01 eth0 0.53 0.28 0.27 0.19 0.00 0.00 0.00 02:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:08:01 eth0 0.88 0.48 0.30 0.21 0.00 0.00 0.00 02:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:09:01 eth0 0.20 0.18 0.09 0.01 0.00 0.00 0.00 02:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:10:01 eth0 0.57 0.33 0.39 0.08 0.00 0.00 0.00 02:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:11:01 eth0 4.91 3.38 5.14 1.62 0.00 0.00 0.00 02:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 62.16 42.17 142.04 13.11 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.25 0.21 0.04 0.41 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) 03/25/20 _x86_64_ (4 CPU) 02:03:28 LINUX RESTART 02:04:01 CPU %user %nice %system %iowait %steal %idle 02:05:01 all 8.20 0.00 2.94 1.19 0.02 87.66 02:05:01 0 8.70 0.00 3.63 4.23 0.02 83.43 02:05:01 1 7.06 0.00 3.08 0.08 0.02 89.76 02:05:01 2 8.17 0.00 2.58 0.10 0.02 89.13 02:05:01 3 8.87 0.00 2.48 0.32 0.02 88.32 02:06:01 all 0.19 0.00 0.08 0.00 0.00 99.74 02:06:01 0 0.47 0.00 0.05 0.00 0.00 99.48 02:06:01 1 0.10 0.00 0.13 0.00 0.00 99.77 02:06:01 2 0.08 0.00 0.07 0.00 0.00 99.85 02:06:01 3 0.10 0.00 0.05 0.00 0.00 99.85 02:07:01 all 0.19 0.00 0.06 0.00 0.00 99.75 02:07:01 0 0.45 0.00 0.07 0.00 0.00 99.48 02:07:01 1 0.08 0.00 0.05 0.00 0.00 99.87 02:07:01 2 0.10 0.00 0.05 0.00 0.02 99.83 02:07:01 3 0.12 0.00 0.03 0.00 0.00 99.85 02:08:01 all 0.20 0.00 0.05 0.00 0.00 99.75 02:08:01 0 0.55 0.00 0.05 0.00 0.00 99.40 02:08:01 1 0.10 0.00 0.08 0.00 0.00 99.82 02:08:01 2 0.08 0.00 0.03 0.00 0.00 99.88 02:08:01 3 0.05 0.00 0.05 0.00 0.02 99.88 02:09:01 all 0.19 0.00 0.05 0.00 0.00 99.76 02:09:01 0 0.52 0.00 0.02 0.00 0.00 99.47 02:09:01 1 0.08 0.00 0.07 0.00 0.00 99.85 02:09:01 2 0.08 0.00 0.07 0.00 0.00 99.85 02:09:01 3 0.08 0.00 0.03 0.00 0.00 99.88 02:10:01 all 0.19 0.00 0.05 0.00 0.00 99.76 02:10:01 0 0.25 0.00 0.07 0.00 0.00 99.68 02:10:01 1 0.07 0.00 0.03 0.00 0.00 99.90 02:10:01 2 0.38 0.00 0.07 0.00 0.00 99.55 02:10:01 3 0.05 0.00 0.05 0.00 0.00 99.90 02:11:01 all 0.35 0.00 0.34 0.04 0.00 99.27 02:11:01 0 0.47 0.00 0.37 0.12 0.00 99.05 02:11:01 1 0.18 0.00 0.27 0.00 0.00 99.55 02:11:01 2 0.47 0.00 0.35 0.00 0.00 99.18 02:11:01 3 0.30 0.00 0.37 0.02 0.00 99.32 Average: all 1.35 0.00 0.51 0.17 0.00 97.96 Average: 0 1.62 0.00 0.60 0.62 0.00 97.16 Average: 1 1.09 0.00 0.53 0.01 0.00 98.36 Average: 2 1.33 0.00 0.46 0.01 0.00 98.19 Average: 3 1.36 0.00 0.44 0.05 0.00 98.15