---> uname -a: Linux 0bbe3bb9b66a 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 7.0G 43.0G 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 43.0G 14% /etc/resolv.conf /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hostname /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hosts /dev/vda1 50.0G 7.0G 43.0G 14% /var/log/sa /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/go-mod-core-contracts/1 /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/go-mod-core-contracts/1@tmp ---> free -m: total used free shared buff/cache available Mem: 1838 653 78 0 1106 1089 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) 15:46:45 LINUX RESTART 15:47:02 tps rtps wtps bread/s bwrtn/s 15:48:01 418.69 252.02 166.67 13193.05 71049.46 15:49:01 61.15 32.04 29.11 1665.61 3517.73 15:50:01 1.80 0.05 1.75 1.60 33.71 15:51:01 0.28 0.00 0.28 0.00 3.75 15:52:01 0.25 0.05 0.20 2.13 2.83 15:53:01 0.42 0.03 0.38 0.27 4.65 Average: 78.66 46.29 32.37 2420.84 12126.81 15:47:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:48:01 71608 1810696 96.20 2620 1166884 1481056 50.53 494544 1105512 49764 15:49:01 665220 1217084 64.66 2520 648072 949520 32.40 464636 564372 16 15:50:01 668660 1213644 64.48 2520 648012 917784 31.31 465836 561092 16 15:51:01 669712 1212592 64.42 2520 648020 917628 31.31 464804 561084 20 15:52:01 668672 1213632 64.48 2520 648024 917796 31.31 491960 535004 8 15:53:01 668864 1213440 64.47 2520 648036 917700 31.31 493960 532768 8 Average: 568789 1313515 69.78 2537 734508 1016914 34.70 479290 643305 8305 15:47:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:48:01 veth25b027c 0.02 0.10 0.00 0.01 0.00 0.00 0.00 15:48:01 eth0 621.83 482.47 6376.96 120.93 0.00 0.00 0.00 15:48:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 15:48:01 docker0 17.69 21.20 1.85 58.38 0.00 0.00 0.00 15:49:01 eth0 12.58 6.11 10.09 4.34 0.00 0.00 0.00 15:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:50:01 eth0 0.58 0.53 0.31 0.24 0.00 0.00 0.00 15:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:51:01 eth0 0.82 0.08 0.07 0.01 0.00 0.00 0.00 15:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:52:01 eth0 0.43 0.33 0.27 0.20 0.00 0.00 0.00 15:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:53:01 eth0 0.43 0.27 0.25 0.08 0.00 0.00 0.00 15:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 100.58 77.97 1030.40 20.29 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.87 3.44 0.30 9.47 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) 15:46:45 LINUX RESTART 15:47:02 CPU %user %nice %system %iowait %steal %idle 15:48:01 all 23.22 0.00 12.08 6.46 0.07 58.17 15:48:01 0 23.17 0.00 12.33 6.92 0.09 57.49 15:48:01 1 21.42 0.00 11.57 6.73 0.05 60.23 15:48:01 2 25.16 0.00 12.69 6.93 0.07 55.15 15:48:01 3 23.15 0.00 11.73 5.23 0.05 59.84 15:49:01 all 20.89 0.00 4.58 4.00 0.02 70.52 15:49:01 0 20.38 0.00 4.38 4.61 0.00 70.63 15:49:01 1 21.27 0.00 4.85 4.38 0.02 69.48 15:49:01 2 21.17 0.00 4.24 3.30 0.02 71.27 15:49:01 3 20.69 0.00 4.85 3.73 0.03 70.69 15:50:01 all 0.21 0.00 0.10 0.00 0.02 99.67 15:50:01 0 0.13 0.00 0.12 0.00 0.00 99.75 15:50:01 1 0.53 0.00 0.12 0.00 0.03 99.32 15:50:01 2 0.10 0.00 0.08 0.00 0.03 99.78 15:50:01 3 0.08 0.00 0.08 0.00 0.02 99.82 15:51:01 all 0.18 0.00 0.06 0.00 0.00 99.76 15:51:01 0 0.13 0.00 0.05 0.00 0.00 99.82 15:51:01 1 0.05 0.00 0.05 0.00 0.00 99.90 15:51:01 2 0.47 0.00 0.07 0.00 0.00 99.47 15:51:01 3 0.07 0.00 0.05 0.00 0.00 99.88 15:52:01 all 0.19 0.00 0.07 0.00 0.00 99.73 15:52:01 0 0.05 0.00 0.05 0.00 0.00 99.90 15:52:01 1 0.08 0.00 0.12 0.00 0.00 99.80 15:52:01 2 0.55 0.00 0.05 0.00 0.00 99.40 15:52:01 3 0.10 0.00 0.08 0.00 0.00 99.82 15:53:01 all 0.18 0.00 0.07 0.00 0.00 99.75 15:53:01 0 0.03 0.00 0.05 0.00 0.00 99.92 15:53:01 1 0.52 0.00 0.10 0.00 0.00 99.38 15:53:01 2 0.10 0.00 0.07 0.00 0.00 99.83 15:53:01 3 0.07 0.00 0.05 0.00 0.00 99.88 Average: all 7.32 0.00 2.74 1.70 0.02 88.23 Average: 0 7.16 0.00 2.74 1.88 0.01 88.21 Average: 1 7.17 0.00 2.72 1.80 0.02 88.29 Average: 2 7.75 0.00 2.78 1.66 0.02 87.79 Average: 3 7.19 0.00 2.72 1.45 0.02 88.62