---> uname -a: Linux 5520ed497158 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 43.1G 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 43.1G 14% /etc/resolv.conf /dev/vda1 50.0G 6.8G 43.1G 14% /etc/hostname /dev/vda1 50.0G 6.8G 43.1G 14% /etc/hosts /dev/vda1 50.0G 6.8G 43.1G 14% /var/log/sa /dev/vda1 50.0G 6.8G 43.1G 14% /w/workspace/xfoundry_device-modbus-go_PR-140 /dev/vda1 50.0G 6.8G 43.1G 14% /w/workspace/xfoundry_device-modbus-go_PR-140@tmp ---> free -m: total used free shared buff/cache available Mem: 1838 604 73 0 1160 1133 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 14: eth0@if15: 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) 02:00:13 LINUX RESTART 02:01:03 tps rtps wtps bread/s bwrtn/s 02:02:01 144.23 46.24 97.99 4539.38 21869.93 02:03:01 72.94 22.68 50.27 1923.81 11016.77 02:04:01 1.93 0.00 1.93 0.00 40.64 02:05:01 81.78 52.97 28.81 3384.66 11224.03 Average: 74.68 30.36 44.32 2446.12 10952.13 02:01:03 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:02:01 64028 1818276 96.60 2620 1239900 1141248 38.94 402340 1227580 107940 02:03:01 265160 1617144 85.91 2620 1075836 943936 32.21 419048 1015324 16 02:04:01 266844 1615460 85.82 2620 1075840 910216 31.06 419584 1013564 8 02:05:01 74388 1807916 96.05 2620 1221468 1135044 38.73 562628 1050840 63688 Average: 167605 1714699 91.10 2620 1153261 1032611 35.23 450900 1076827 42913 02:01:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:02:01 eth0 370.84 242.46 3506.59 54.71 0.00 0.00 0.00 02:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:02:01 docker0 114.61 130.63 6.23 1145.12 0.00 0.00 0.00 02:03:01 eth0 9.84 6.93 10.35 3.10 0.00 0.00 0.00 02:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:03:01 docker0 2.48 2.53 0.21 4.97 0.00 0.00 0.00 02:04:01 eth0 0.68 0.28 0.29 0.19 0.00 0.00 0.00 02:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:05:01 eth0 83.76 59.30 2318.77 8.53 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 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 114.24 75.92 1443.35 16.33 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 28.58 32.50 1.57 280.54 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) 02:00:13 LINUX RESTART 02:01:03 CPU %user %nice %system %iowait %steal %idle 02:02:01 all 4.39 0.00 3.17 3.39 14.98 74.06 02:02:01 0 6.13 0.00 3.89 0.84 17.94 71.21 02:02:01 1 3.35 0.00 3.12 7.37 14.72 71.45 02:02:01 2 4.16 0.00 2.98 3.48 13.99 75.38 02:02:01 3 4.00 0.00 2.74 1.75 13.38 78.13 02:03:01 all 2.11 0.00 1.64 0.98 2.03 93.24 02:03:01 0 1.86 0.00 1.56 0.63 2.26 93.67 02:03:01 1 2.16 0.00 1.64 1.53 1.91 92.76 02:03:01 2 2.21 0.00 2.04 1.14 1.97 92.64 02:03:01 3 2.23 0.00 1.27 0.60 1.94 93.95 02:04:01 all 0.08 0.00 0.07 0.00 0.12 99.74 02:04:01 0 0.02 0.00 0.07 0.00 0.05 99.87 02:04:01 1 0.07 0.00 0.05 0.00 0.25 99.63 02:04:01 2 0.10 0.00 0.08 0.00 0.13 99.68 02:04:01 3 0.12 0.00 0.08 0.00 0.05 99.75 02:05:01 all 2.57 0.00 1.40 1.42 4.92 89.69 02:05:01 0 3.18 0.00 1.30 1.45 4.98 89.10 02:05:01 1 2.11 0.00 1.52 1.09 5.12 90.16 02:05:01 2 2.21 0.00 1.56 2.45 4.76 89.02 02:05:01 3 2.78 0.00 1.24 0.72 4.85 90.42 Average: all 2.29 0.00 1.57 1.45 5.53 89.16 Average: 0 2.78 0.00 1.69 0.73 6.24 88.57 Average: 1 1.93 0.00 1.59 2.52 5.55 88.41 Average: 2 2.17 0.00 1.67 1.77 5.23 89.16 Average: 3 2.29 0.00 1.34 0.77 5.09 90.52