---> uname -a: Linux 3a8947f47a81 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 6.4G 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-149@tmp /dev/vda1 50.0G 6.4G 43.6G 13% /var/log/sa /dev/vda1 50.0G 6.4G 43.6G 13% /w/workspace/xfoundry_device-modbus-go_PR-149 ---> free -m: total used free shared buff/cache available Mem: 1838 613 67 0 1157 1120 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) 05/13/20 _x86_64_ (4 CPU) 08:32:39 LINUX RESTART 08:33:01 tps rtps wtps bread/s bwrtn/s 08:34:01 52.26 15.25 37.01 2861.99 3624.39 08:35:01 3.75 0.00 3.75 0.00 116.24 08:36:01 0.33 0.00 0.33 0.00 4.08 08:37:01 0.28 0.00 0.28 0.00 4.26 Average: 14.16 3.81 10.35 715.77 937.58 08:33:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:34:01 100548 1781756 94.66 2620 1227312 934812 31.90 448272 1167756 16 08:35:01 108196 1774108 94.25 2620 1227348 903456 30.83 445344 1166204 8 08:36:01 106340 1775964 94.35 2620 1227356 903444 30.83 447316 1166168 8 08:37:01 106352 1775952 94.35 2620 1227360 903492 30.83 447496 1166172 12 Average: 105359 1776945 94.40 2620 1227344 911301 31.09 447107 1166575 11 08:33:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:34:01 eth0 494.24 305.36 1001.51 92.59 0.00 0.00 0.00 08:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:34:01 docker0 1.45 1.27 0.29 3.17 0.00 0.00 0.00 08:35:01 eth0 1.77 0.57 0.71 0.22 0.00 0.00 0.00 08:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:35:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:36:01 eth0 1.57 0.38 0.36 0.20 0.00 0.00 0.00 08:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:36:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:37:01 eth0 1.57 0.65 0.59 0.40 0.00 0.00 0.00 08:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 124.83 76.77 250.89 23.36 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.36 0.32 0.07 0.79 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) 05/13/20 _x86_64_ (4 CPU) 08:32:39 LINUX RESTART 08:33:01 CPU %user %nice %system %iowait %steal %idle 08:34:01 all 11.59 0.00 2.70 1.17 0.01 84.53 08:34:01 0 10.62 0.00 3.73 0.22 0.02 85.42 08:34:01 1 11.77 0.00 2.43 1.98 0.02 83.80 08:34:01 2 11.15 0.00 2.20 1.65 0.02 84.99 08:34:01 3 12.87 0.00 2.45 0.82 0.02 83.84 08:35:01 all 0.21 0.00 0.05 0.00 0.00 99.74 08:35:01 0 0.07 0.00 0.03 0.00 0.00 99.90 08:35:01 1 0.13 0.00 0.05 0.00 0.00 99.82 08:35:01 2 0.07 0.00 0.05 0.00 0.00 99.88 08:35:01 3 0.53 0.00 0.10 0.00 0.00 99.37 08:36:01 all 0.20 0.00 0.04 0.00 0.00 99.76 08:36:01 0 0.05 0.00 0.03 0.00 0.00 99.92 08:36:01 1 0.07 0.00 0.07 0.00 0.00 99.87 08:36:01 2 0.30 0.00 0.03 0.00 0.00 99.67 08:36:01 3 0.37 0.00 0.03 0.00 0.00 99.60 08:37:01 all 0.19 0.00 0.04 0.00 0.00 99.77 08:37:01 0 0.03 0.00 0.02 0.00 0.00 99.95 08:37:01 1 0.05 0.00 0.05 0.00 0.00 99.90 08:37:01 2 0.58 0.00 0.03 0.00 0.00 99.38 08:37:01 3 0.10 0.00 0.05 0.00 0.00 99.85 Average: all 3.03 0.00 0.71 0.29 0.00 95.97 Average: 0 2.68 0.00 0.95 0.05 0.00 96.31 Average: 1 2.99 0.00 0.65 0.49 0.00 95.86 Average: 2 3.01 0.00 0.58 0.41 0.00 96.00 Average: 3 3.45 0.00 0.65 0.20 0.00 95.68