---> uname -a: Linux ab7fb2aab819 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 6.3G 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/gexfoundry_device-mqtt-go_PR-145 /dev/vda1 50.0G 6.3G 43.7G 13% /w/workspace/gexfoundry_device-mqtt-go_PR-145@tmp /dev/vda1 50.0G 6.3G 43.7G 13% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1838 600 68 0 1168 1132 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) 04/28/20 _x86_64_ (4 CPU) 04:59:50 LINUX RESTART 05:01:01 tps rtps wtps bread/s bwrtn/s 05:02:01 3.21 0.07 3.15 1.47 118.37 05:03:01 0.25 0.00 0.25 0.00 2.70 05:04:01 0.65 0.00 0.65 0.00 7.51 05:05:01 0.57 0.00 0.57 0.00 6.10 05:06:01 0.48 0.00 0.48 0.00 7.68 05:07:01 0.17 0.00 0.17 0.00 1.65 05:08:01 145.99 92.06 53.93 5623.31 18445.90 Average: 21.62 13.17 8.46 803.81 2656.58 05:01:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:02:01 108116 1774188 94.26 2620 1241440 900048 30.71 431348 1179824 16 05:03:01 108100 1774204 94.26 2620 1241444 900048 30.71 431376 1179752 16 05:04:01 107592 1774712 94.28 2620 1241452 900156 30.71 432128 1179752 8 05:05:01 107704 1774600 94.28 2620 1241456 900156 30.71 432204 1179748 8 05:06:01 107816 1774488 94.27 2620 1241460 900120 30.71 431748 1179748 8 05:07:01 108284 1774020 94.25 2620 1241468 900048 30.71 431512 1179748 8 05:08:01 81148 1801156 95.69 2620 1193836 960456 32.77 449392 1157060 54460 Average: 104109 1778195 94.47 2620 1234651 908719 31.00 434244 1176519 7789 05:01:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 05:02:01 eth0 0.12 0.10 0.01 0.02 0.00 0.00 0.00 05:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:03:01 eth0 0.45 0.08 0.04 0.01 0.00 0.00 0.00 05:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:04:01 eth0 0.90 0.38 0.30 0.20 0.00 0.00 0.00 05:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:05:01 eth0 0.52 0.38 0.27 0.21 0.00 0.00 0.00 05:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:06:01 eth0 0.30 0.22 0.14 0.07 0.00 0.00 0.00 05:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:07:01 eth0 0.35 0.08 0.02 0.01 0.00 0.00 0.00 05:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:08:01 veth81411a2 0.00 0.10 0.00 0.01 0.00 0.00 0.00 05:08:01 eth0 631.29 397.04 3394.61 107.24 0.00 0.00 0.00 05:08:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 05:08:01 docker0 1.88 1.63 0.30 3.23 0.00 0.00 0.00 Average: veth81411a2 0.00 0.01 0.00 0.00 0.00 0.00 0.00 Average: eth0 90.21 56.74 485.11 15.33 0.00 0.00 0.00 Average: lo 0.01 0.01 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.27 0.23 0.04 0.46 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) 04/28/20 _x86_64_ (4 CPU) 04:59:50 LINUX RESTART 05:01:01 CPU %user %nice %system %iowait %steal %idle 05:02:01 all 0.17 0.00 0.07 0.00 0.00 99.77 05:02:01 0 0.47 0.00 0.08 0.00 0.00 99.45 05:02:01 1 0.07 0.00 0.07 0.00 0.00 99.87 05:02:01 2 0.08 0.00 0.07 0.00 0.00 99.85 05:02:01 3 0.05 0.00 0.05 0.00 0.00 99.90 05:03:01 all 0.15 0.00 0.05 0.00 0.00 99.80 05:03:01 0 0.08 0.00 0.07 0.00 0.02 99.83 05:03:01 1 0.08 0.00 0.05 0.00 0.00 99.87 05:03:01 2 0.27 0.00 0.02 0.00 0.00 99.72 05:03:01 3 0.17 0.00 0.05 0.00 0.00 99.78 05:04:01 all 0.13 0.00 0.05 0.00 0.00 99.82 05:04:01 0 0.08 0.00 0.07 0.00 0.00 99.85 05:04:01 1 0.05 0.00 0.03 0.00 0.02 99.90 05:04:01 2 0.32 0.00 0.08 0.00 0.00 99.60 05:04:01 3 0.07 0.00 0.03 0.00 0.02 99.88 05:05:01 all 0.07 0.00 0.05 0.00 0.01 99.87 05:05:01 0 0.07 0.00 0.07 0.00 0.00 99.87 05:05:01 1 0.07 0.00 0.03 0.00 0.00 99.90 05:05:01 2 0.08 0.00 0.05 0.00 0.02 99.85 05:05:01 3 0.07 0.00 0.05 0.00 0.00 99.88 05:06:01 all 0.10 0.00 0.05 0.00 0.00 99.85 05:06:01 0 0.08 0.00 0.07 0.00 0.02 99.83 05:06:01 1 0.07 0.00 0.03 0.00 0.02 99.88 05:06:01 2 0.22 0.00 0.07 0.00 0.00 99.72 05:06:01 3 0.03 0.00 0.02 0.00 0.00 99.95 05:07:01 all 0.18 0.00 0.05 0.00 0.00 99.77 05:07:01 0 0.05 0.00 0.03 0.00 0.00 99.92 05:07:01 1 0.07 0.00 0.07 0.00 0.00 99.87 05:07:01 2 0.30 0.00 0.05 0.00 0.02 99.63 05:07:01 3 0.27 0.00 0.05 0.00 0.00 99.68 05:08:01 all 5.42 0.00 3.14 2.00 0.02 89.42 05:08:01 0 4.73 0.00 2.77 1.78 0.02 90.71 05:08:01 1 6.51 0.00 3.42 3.54 0.02 86.51 05:08:01 2 5.67 0.00 3.21 2.18 0.02 88.92 05:08:01 3 4.80 0.00 3.19 0.49 0.02 91.51 Average: all 0.88 0.00 0.49 0.28 0.01 98.34 Average: 0 0.79 0.00 0.45 0.25 0.01 98.50 Average: 1 0.98 0.00 0.53 0.50 0.01 97.98 Average: 2 0.99 0.00 0.50 0.31 0.01 98.19 Average: 3 0.77 0.00 0.49 0.07 0.00 98.66