---> uname -a: Linux b3ab0b9779ad 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: 2933.436 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 6.4G 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-134 /dev/vda1 50.0G 6.4G 43.6G 13% /w/workspace/xfoundry_device-modbus-go_PR-134@tmp /dev/vda1 50.0G 6.4G 43.6G 13% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1838 609 71 0 1157 1123 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) 04/07/20 _x86_64_ (4 CPU) 03:23:24 LINUX RESTART 03:24:01 tps rtps wtps bread/s bwrtn/s 03:25:01 45.12 10.23 34.88 2333.43 3378.48 03:26:01 2.80 0.00 2.80 0.00 86.79 03:27:01 0.70 0.00 0.70 0.00 9.57 03:28:02 0.33 0.00 0.33 0.00 5.66 03:29:01 0.56 0.00 0.56 0.00 6.23 Average: 9.94 2.05 7.88 468.45 699.95 03:24:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:25:01 109664 1772640 94.17 2620 1228512 946032 32.28 437536 1176936 12 03:26:01 119084 1763220 93.67 2620 1228516 892692 30.46 431036 1175352 8 03:27:01 117648 1764656 93.75 2620 1228524 892908 30.47 433348 1174292 12 03:28:02 118960 1763344 93.68 2620 1228528 892740 30.46 432456 1174292 8 03:29:01 118964 1763340 93.68 2620 1228536 892776 30.46 432528 1174292 8 Average: 116864 1765440 93.79 2620 1228523 903430 30.82 433381 1175033 10 03:24:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:25:01 eth0 233.48 137.93 656.43 67.68 0.00 0.00 0.00 03:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:25:01 docker0 1.48 1.10 0.26 2.86 0.00 0.00 0.00 03:26:01 eth0 0.77 0.08 0.06 0.01 0.00 0.00 0.00 03:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:27:01 eth0 1.25 0.70 0.56 0.37 0.00 0.00 0.00 03:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:28:02 eth0 0.22 0.15 0.12 0.04 0.00 0.00 0.00 03:28:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:28:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:29:01 eth0 0.19 0.15 0.08 0.04 0.00 0.00 0.00 03:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 47.36 27.91 131.95 13.68 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.30 0.22 0.05 0.57 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) 04/07/20 _x86_64_ (4 CPU) 03:23:24 LINUX RESTART 03:24:01 CPU %user %nice %system %iowait %steal %idle 03:25:01 all 7.26 0.00 2.75 1.26 0.94 87.78 03:25:01 0 5.47 0.00 3.39 4.46 1.06 85.62 03:25:01 1 8.15 0.00 2.39 0.13 0.98 88.35 03:25:01 2 7.12 0.00 2.79 0.22 0.91 88.96 03:25:01 3 8.33 0.00 2.44 0.22 0.81 88.20 03:26:01 all 0.14 0.00 0.05 0.00 0.08 99.73 03:26:01 0 0.03 0.00 0.03 0.00 0.07 99.87 03:26:01 1 0.07 0.00 0.08 0.00 0.07 99.78 03:26:01 2 0.43 0.00 0.03 0.00 0.07 99.47 03:26:01 3 0.03 0.00 0.05 0.00 0.10 99.82 03:27:01 all 0.17 0.00 0.06 0.00 0.07 99.70 03:27:01 0 0.08 0.00 0.10 0.00 0.08 99.73 03:27:01 1 0.07 0.00 0.05 0.00 0.08 99.80 03:27:01 2 0.43 0.00 0.03 0.00 0.07 99.47 03:27:01 3 0.10 0.00 0.03 0.00 0.05 99.82 03:28:02 all 0.15 0.00 0.06 0.00 0.06 99.74 03:28:02 0 0.05 0.00 0.07 0.00 0.05 99.83 03:28:02 1 0.03 0.00 0.05 0.00 0.07 99.85 03:28:02 2 0.47 0.00 0.08 0.00 0.07 99.38 03:28:02 3 0.05 0.00 0.03 0.00 0.03 99.88 03:29:01 all 0.15 0.00 0.05 0.00 0.04 99.77 03:29:01 0 0.07 0.00 0.07 0.00 0.05 99.81 03:29:01 1 0.05 0.00 0.03 0.00 0.02 99.90 03:29:01 2 0.39 0.00 0.03 0.00 0.03 99.54 03:29:01 3 0.07 0.00 0.03 0.00 0.05 99.85 Average: all 1.57 0.00 0.59 0.25 0.24 97.36 Average: 0 1.13 0.00 0.73 0.89 0.26 96.99 Average: 1 1.67 0.00 0.52 0.03 0.24 97.55 Average: 2 1.76 0.00 0.59 0.04 0.23 97.37 Average: 3 1.71 0.00 0.52 0.04 0.21 97.52