---> uname -a: Linux 456e59cad017 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 7.3G 42.7G 15% / 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 7.3G 42.7G 15% /etc/resolv.conf /dev/vda1 50.0G 7.3G 42.7G 15% /etc/hostname /dev/vda1 50.0G 7.3G 42.7G 15% /etc/hosts /dev/vda1 50.0G 7.3G 42.7G 15% /var/log/sa /dev/vda1 50.0G 7.3G 42.7G 15% /w/workspace/device-modbus-go/1@tmp /dev/vda1 50.0G 7.3G 42.7G 15% /w/workspace/device-modbus-go/1 ---> free -m: total used free shared buff/cache available Mem: 1838 700 90 0 1047 1052 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 20: eth0@if21: 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) 01/17/20 _x86_64_ (4 CPU) 21:32:54 LINUX RESTART 21:34:01 tps rtps wtps bread/s bwrtn/s 21:35:02 259.31 138.49 120.83 4677.08 19387.85 21:36:01 35.02 7.81 27.21 346.22 2565.88 21:37:01 2.50 0.03 2.47 0.53 70.49 21:38:01 0.70 0.03 0.67 1.07 7.26 21:39:01 0.77 0.03 0.73 0.27 9.73 21:40:01 0.32 0.03 0.28 0.67 4.05 21:41:01 0.25 0.00 0.25 0.00 2.95 21:42:01 0.28 0.00 0.28 0.00 3.08 21:43:01 0.23 0.00 0.23 0.00 3.05 21:44:01 64.37 51.26 13.12 3736.31 7472.72 Average: 36.39 19.79 16.59 877.38 2954.29 21:34:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 21:35:02 507908 1374396 73.02 2424 760692 968360 33.04 483292 669672 60 21:36:01 447856 1434448 76.21 2384 818588 961892 32.82 509660 704220 20 21:37:01 449592 1432712 76.11 2384 818652 930000 31.73 510780 701980 12 21:38:01 449384 1432920 76.13 2384 818656 930000 31.73 511416 701980 8 21:39:01 446052 1436252 76.30 2384 818668 930192 31.74 531012 685696 8 21:40:01 446952 1435352 76.26 2384 818696 930000 31.73 529980 685628 12 21:41:01 450888 1431416 76.05 2384 818700 930000 31.73 527024 684964 8 21:42:01 450648 1431656 76.06 2384 818704 930000 31.73 527040 684964 16 21:43:01 450764 1431540 76.05 2384 818712 930000 31.73 527048 684964 8 21:44:01 65220 1817084 96.54 2328 1137828 1130112 38.56 619608 959748 55820 Average: 416526 1465778 77.87 2382 844790 957056 32.65 527686 716382 5597 21:34:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 21:35:02 eth0 316.96 229.35 1464.43 29.49 0.00 0.00 0.00 21:35:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:35:02 docker0 210.67 281.60 14.42 1434.61 0.00 0.00 0.00 21:36:01 eth0 15.17 8.96 34.33 5.05 0.00 0.00 0.00 21:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:36:01 docker0 1.91 2.90 0.10 23.70 0.00 0.00 0.00 21:37:01 eth0 0.53 0.08 0.02 0.04 0.00 0.00 0.00 21:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:38:01 eth0 0.50 0.08 0.05 0.01 0.00 0.00 0.00 21:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:39:01 eth0 0.77 0.67 0.42 0.28 0.00 0.00 0.00 21:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:40:01 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 21:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:41:01 eth0 0.02 0.02 0.00 0.00 0.00 0.00 0.00 21:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:42:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 21:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:43:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 21:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:44:01 eth0 81.57 69.24 2111.34 9.16 0.00 0.00 0.00 21:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 41.64 30.91 361.73 4.41 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 21.30 28.50 1.46 146.08 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) 01/17/20 _x86_64_ (4 CPU) 21:32:54 LINUX RESTART 21:34:01 CPU %user %nice %system %iowait %steal %idle 21:35:02 all 30.11 0.00 10.26 3.10 0.03 56.51 21:35:02 0 29.73 0.00 10.89 2.45 0.07 56.87 21:35:02 1 28.25 0.00 9.62 3.31 0.02 58.81 21:35:02 2 30.71 0.00 11.05 2.60 0.02 55.63 21:35:02 3 31.74 0.00 9.49 4.07 0.03 54.68 21:36:01 all 12.88 0.00 3.33 0.31 0.01 83.48 21:36:01 0 14.89 0.00 3.59 0.19 0.00 81.33 21:36:01 1 12.49 0.00 3.13 0.14 0.02 84.23 21:36:01 2 12.50 0.00 3.24 0.27 0.00 83.99 21:36:01 3 11.66 0.00 3.29 0.61 0.00 84.43 21:37:01 all 0.18 0.00 0.06 0.00 0.00 99.77 21:37:01 0 0.23 0.00 0.07 0.00 0.00 99.70 21:37:01 1 0.05 0.00 0.05 0.00 0.00 99.90 21:37:01 2 0.35 0.00 0.08 0.00 0.00 99.57 21:37:01 3 0.05 0.00 0.05 0.00 0.00 99.90 21:38:01 all 0.18 0.00 0.05 0.00 0.00 99.76 21:38:01 0 0.03 0.00 0.03 0.00 0.00 99.93 21:38:01 1 0.07 0.00 0.05 0.00 0.00 99.88 21:38:01 2 0.53 0.00 0.05 0.00 0.00 99.42 21:38:01 3 0.10 0.00 0.08 0.00 0.00 99.82 21:39:01 all 0.18 0.00 0.08 0.00 0.00 99.73 21:39:01 0 0.05 0.00 0.03 0.00 0.00 99.92 21:39:01 1 0.07 0.00 0.08 0.00 0.00 99.85 21:39:01 2 0.57 0.00 0.17 0.00 0.00 99.27 21:39:01 3 0.08 0.00 0.05 0.00 0.00 99.87 21:40:01 all 0.19 0.00 0.05 0.00 0.00 99.76 21:40:01 0 0.03 0.00 0.03 0.00 0.02 99.92 21:40:01 1 0.48 0.00 0.03 0.02 0.00 99.47 21:40:01 2 0.13 0.00 0.07 0.00 0.02 99.78 21:40:01 3 0.07 0.00 0.07 0.00 0.00 99.87 21:41:01 all 0.18 0.00 0.05 0.00 0.00 99.78 21:41:01 0 0.03 0.00 0.03 0.00 0.00 99.93 21:41:01 1 0.53 0.00 0.05 0.00 0.00 99.42 21:41:01 2 0.08 0.00 0.05 0.00 0.00 99.87 21:41:01 3 0.07 0.00 0.07 0.00 0.00 99.87 21:42:01 all 0.19 0.00 0.05 0.00 0.00 99.77 21:42:01 0 0.07 0.00 0.07 0.00 0.00 99.87 21:42:01 1 0.07 0.00 0.05 0.00 0.00 99.88 21:42:01 2 0.05 0.00 0.03 0.00 0.00 99.92 21:42:01 3 0.57 0.00 0.03 0.00 0.00 99.40 21:43:01 all 0.18 0.00 0.04 0.00 0.00 99.77 21:43:01 0 0.02 0.00 0.03 0.00 0.00 99.95 21:43:01 1 0.07 0.00 0.05 0.00 0.00 99.88 21:43:01 2 0.10 0.00 0.05 0.00 0.00 99.85 21:43:01 3 0.55 0.00 0.03 0.00 0.00 99.42 21:44:01 all 2.70 0.00 1.63 1.30 0.01 94.36 21:44:01 0 2.71 0.00 1.82 1.19 0.00 94.28 21:44:01 1 3.01 0.00 1.27 0.73 0.02 94.97 21:44:01 2 2.60 0.00 1.57 2.31 0.00 93.52 21:44:01 3 2.47 0.00 1.87 0.94 0.02 94.70 Average: all 4.64 0.00 1.54 0.47 0.01 93.34 Average: 0 4.72 0.00 1.64 0.38 0.01 93.24 Average: 1 4.46 0.00 1.42 0.42 0.01 93.69 Average: 2 4.71 0.00 1.62 0.52 0.00 93.15 Average: 3 4.68 0.00 1.49 0.56 0.01 93.28