---> uname -a: Linux e14c6bf7a9a4 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-153@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-153 ---> free -m: total used free shared buff/cache available Mem: 1838 615 64 0 1158 1119 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) 06/04/20 _x86_64_ (4 CPU) 16:08:04 LINUX RESTART 16:09:02 tps rtps wtps bread/s bwrtn/s 16:10:01 10.99 0.02 10.97 0.54 2069.40 16:11:01 2.51 0.00 2.51 0.00 78.47 16:12:01 0.58 0.00 0.58 0.00 6.66 16:13:01 0.50 0.00 0.50 0.00 6.89 16:14:01 0.25 0.00 0.25 0.00 3.36 16:15:01 0.75 0.00 0.75 0.00 8.48 16:16:01 0.63 0.00 0.63 0.00 7.81 16:17:01 0.68 0.00 0.68 0.00 7.73 16:18:01 0.57 0.00 0.57 0.00 6.13 16:19:01 84.01 55.02 29.00 3649.98 10175.24 Average: 10.16 5.52 4.64 366.38 1237.61 16:09:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:10:01 112764 1769540 94.01 2620 1224280 919264 31.36 436324 1170716 20 16:11:01 114132 1768172 93.94 2620 1224284 896808 30.60 435460 1170036 8 16:12:01 113548 1768756 93.97 2620 1224296 896904 30.60 436268 1170036 8 16:13:01 114224 1768080 93.93 2620 1224296 896880 30.60 435976 1170036 8 16:14:01 114604 1767700 93.91 2620 1224304 896784 30.60 435476 1170036 8 16:15:01 114988 1767316 93.89 2620 1224308 896712 30.60 435224 1170036 8 16:16:01 123000 1759304 93.47 2620 1224312 896712 30.60 426884 1169896 8 16:17:01 123380 1758924 93.45 2620 1224316 896712 30.60 426808 1169896 8 16:18:01 123480 1758824 93.44 2620 1224324 896748 30.60 427156 1169900 8 16:19:01 74596 1807708 96.04 2620 1203264 1106092 37.74 513480 1108608 105640 Average: 112872 1769432 94.00 2620 1222198 919962 31.39 440906 1163920 10572 16:09:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 16:10:01 eth0 0.52 0.30 0.27 0.20 0.00 0.00 0.00 16:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:11:01 eth0 7.13 2.83 7.06 0.19 0.00 0.00 0.00 16:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:12:01 eth0 1.28 0.43 0.34 0.21 0.00 0.00 0.00 16:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:13:01 eth0 0.50 0.27 0.27 0.19 0.00 0.00 0.00 16:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:14:01 eth0 0.17 0.10 0.08 0.06 0.00 0.00 0.00 16:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:15:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 16:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:16:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 16:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:17:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 16:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:18:01 eth0 0.17 0.13 0.07 0.01 0.00 0.00 0.00 16:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:19:01 eth0 108.62 87.22 2325.26 11.26 0.00 0.00 0.00 16:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 11.91 9.19 234.19 1.22 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 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) 06/04/20 _x86_64_ (4 CPU) 16:08:04 LINUX RESTART 16:09:02 CPU %user %nice %system %iowait %steal %idle 16:10:01 all 0.22 0.00 0.09 0.00 0.00 99.68 16:10:01 0 0.42 0.00 0.05 0.00 0.02 99.51 16:10:01 1 0.12 0.00 0.10 0.00 0.00 99.78 16:10:01 2 0.08 0.00 0.07 0.00 0.00 99.85 16:10:01 3 0.22 0.00 0.14 0.00 0.00 99.64 16:11:01 all 0.22 0.00 0.08 0.00 0.00 99.70 16:11:01 0 0.53 0.00 0.12 0.00 0.00 99.35 16:11:01 1 0.10 0.00 0.07 0.00 0.00 99.83 16:11:01 2 0.12 0.00 0.05 0.00 0.00 99.83 16:11:01 3 0.15 0.00 0.08 0.00 0.00 99.77 16:12:01 all 0.11 0.00 0.04 0.00 0.00 99.85 16:12:01 0 0.25 0.00 0.05 0.00 0.00 99.70 16:12:01 1 0.05 0.00 0.05 0.00 0.00 99.90 16:12:01 2 0.07 0.00 0.05 0.00 0.00 99.88 16:12:01 3 0.07 0.00 0.05 0.00 0.00 99.88 16:13:01 all 0.20 0.00 0.04 0.00 0.00 99.75 16:13:01 0 0.57 0.00 0.02 0.00 0.00 99.42 16:13:01 1 0.10 0.00 0.05 0.00 0.02 99.83 16:13:01 2 0.05 0.00 0.03 0.00 0.00 99.92 16:13:01 3 0.08 0.00 0.05 0.00 0.00 99.87 16:14:01 all 0.19 0.00 0.05 0.00 0.00 99.77 16:14:01 0 0.52 0.00 0.03 0.00 0.00 99.45 16:14:01 1 0.08 0.00 0.07 0.00 0.00 99.85 16:14:01 2 0.07 0.00 0.03 0.00 0.00 99.90 16:14:01 3 0.10 0.00 0.05 0.00 0.00 99.85 16:15:01 all 0.18 0.00 0.04 0.00 0.00 99.77 16:15:01 0 0.03 0.00 0.03 0.00 0.00 99.93 16:15:01 1 0.07 0.00 0.03 0.00 0.00 99.90 16:15:01 2 0.55 0.00 0.05 0.00 0.02 99.38 16:15:01 3 0.08 0.00 0.05 0.00 0.00 99.87 16:16:01 all 0.18 0.00 0.04 0.00 0.00 99.78 16:16:01 0 0.05 0.00 0.03 0.00 0.02 99.90 16:16:01 1 0.03 0.00 0.03 0.00 0.00 99.93 16:16:01 2 0.55 0.00 0.05 0.00 0.00 99.40 16:16:01 3 0.05 0.00 0.03 0.00 0.02 99.90 16:17:01 all 0.19 0.00 0.05 0.00 0.00 99.75 16:17:01 0 0.05 0.00 0.05 0.00 0.00 99.90 16:17:01 1 0.10 0.00 0.05 0.00 0.00 99.85 16:17:01 2 0.53 0.00 0.05 0.00 0.00 99.42 16:17:01 3 0.10 0.00 0.08 0.00 0.00 99.82 16:18:01 all 0.18 0.00 0.03 0.00 0.00 99.80 16:18:01 0 0.07 0.00 0.02 0.00 0.00 99.92 16:18:01 1 0.48 0.00 0.03 0.00 0.00 99.48 16:18:01 2 0.08 0.00 0.03 0.00 0.00 99.88 16:18:01 3 0.08 0.00 0.02 0.00 0.00 99.90 16:19:01 all 3.71 0.00 1.88 1.31 0.02 93.08 16:19:01 0 3.79 0.00 1.97 0.83 0.00 93.40 16:19:01 1 3.79 0.00 1.58 0.43 0.02 94.18 16:19:01 2 3.57 0.00 2.19 1.85 0.03 92.36 16:19:01 3 3.70 0.00 1.74 2.11 0.03 92.43 Average: all 0.54 0.00 0.23 0.13 0.00 99.09 Average: 0 0.63 0.00 0.24 0.08 0.00 99.05 Average: 1 0.49 0.00 0.21 0.04 0.00 99.25 Average: 2 0.57 0.00 0.26 0.19 0.01 98.98 Average: 3 0.46 0.00 0.23 0.21 0.01 99.09