---> uname -a: Linux 3f9be73a7c4d 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 7.0G 42.9G 14% / 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 7.0G 42.9G 14% /etc/resolv.conf /dev/vda1 50.0G 7.0G 42.9G 14% /etc/hostname /dev/vda1 50.0G 7.0G 42.9G 14% /etc/hosts /dev/vda1 50.0G 7.0G 42.9G 14% /var/log/sa /dev/vda1 50.0G 7.0G 42.9G 14% /w/workspace/go-mod-core-contracts/1 /dev/vda1 50.0G 7.0G 42.9G 14% /w/workspace/go-mod-core-contracts/1@tmp ---> free -m: total used free shared buff/cache available Mem: 1838 654 66 0 1116 1087 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 12: eth0@if13: 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) 01/20/20 _x86_64_ (4 CPU) 15:55:03 LINUX RESTART 15:56:01 tps rtps wtps bread/s bwrtn/s 15:57:01 329.72 237.34 92.38 9302.45 20600.80 15:58:01 3.70 0.08 3.61 2.66 112.57 15:59:01 0.82 0.02 0.80 0.53 10.01 16:00:01 0.63 0.00 0.63 0.00 7.66 16:01:01 1.63 1.05 0.58 30.24 6.24 Average: 67.34 47.73 19.61 1868.29 4149.92 15:56:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:57:01 649488 1232816 65.50 2396 655484 960676 32.78 465732 571000 112 15:58:01 660480 1221824 64.91 2396 655576 920880 31.42 464748 566484 8 15:59:01 659004 1223300 64.99 2396 655584 920928 31.42 466232 566480 20 16:00:01 660456 1221848 64.91 2396 655580 920724 31.41 473168 558404 12 16:01:01 658428 1223876 65.02 2396 656444 923132 31.50 474188 559232 8 Average: 657571 1224733 65.07 2396 655734 929268 31.71 468814 564320 32 15:56:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:57:01 eth0 49.93 32.80 78.19 13.27 0.00 0.00 0.00 15:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:57:01 docker0 14.28 17.87 1.14 49.44 0.00 0.00 0.00 15:58:01 eth0 0.77 0.35 0.30 0.18 0.00 0.00 0.00 15:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:59:01 eth0 0.77 0.42 0.48 0.24 0.00 0.00 0.00 15:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:00:01 eth0 0.10 0.07 0.01 0.01 0.00 0.00 0.00 16:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:01:01 eth0 0.55 0.13 0.09 0.07 0.00 0.00 0.00 16:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 10.43 6.76 15.82 2.75 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.86 3.58 0.23 9.89 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) 01/20/20 _x86_64_ (4 CPU) 15:55:03 LINUX RESTART 15:56:01 CPU %user %nice %system %iowait %steal %idle 15:57:01 all 30.50 0.00 9.40 4.56 1.15 54.39 15:57:01 0 30.18 0.00 9.95 4.08 1.33 54.46 15:57:01 1 32.93 0.00 8.71 3.12 1.06 54.17 15:57:01 2 27.95 0.00 8.96 7.07 1.30 54.71 15:57:01 3 30.95 0.00 9.95 3.96 0.93 54.21 15:58:01 all 0.19 0.00 0.07 0.00 0.02 99.72 15:58:01 0 0.08 0.00 0.07 0.00 0.00 99.85 15:58:01 1 0.10 0.00 0.08 0.00 0.02 99.80 15:58:01 2 0.08 0.00 0.05 0.00 0.02 99.85 15:58:01 3 0.53 0.00 0.07 0.00 0.05 99.35 15:59:01 all 0.16 0.00 0.06 0.00 0.02 99.76 15:59:01 0 0.07 0.00 0.07 0.00 0.02 99.85 15:59:01 1 0.07 0.00 0.07 0.00 0.02 99.85 15:59:01 2 0.05 0.00 0.03 0.00 0.02 99.90 15:59:01 3 0.43 0.00 0.05 0.00 0.05 99.47 16:00:01 all 0.06 0.00 0.05 0.00 0.02 99.87 16:00:01 0 0.03 0.00 0.03 0.00 0.02 99.92 16:00:01 1 0.08 0.00 0.10 0.00 0.03 99.78 16:00:01 2 0.05 0.00 0.07 0.00 0.02 99.87 16:00:01 3 0.07 0.00 0.07 0.00 0.00 99.87 16:01:01 all 0.18 0.00 0.10 0.00 0.02 99.71 16:01:01 0 0.03 0.00 0.05 0.00 0.00 99.92 16:01:01 1 0.43 0.00 0.23 0.02 0.02 99.30 16:01:01 2 0.17 0.00 0.03 0.00 0.05 99.75 16:01:01 3 0.08 0.00 0.07 0.00 0.02 99.83 Average: all 6.04 0.00 1.88 0.89 0.24 90.95 Average: 0 5.91 0.00 1.98 0.79 0.27 91.05 Average: 1 6.52 0.00 1.78 0.61 0.22 90.87 Average: 2 5.50 0.00 1.78 1.37 0.27 91.08 Average: 3 6.24 0.00 1.98 0.77 0.20 90.81