---> uname -a: Linux 3c2f9a26e4bc 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 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 664 71 0 1102 1078 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) 15:57:33 LINUX RESTART 15:58:02 tps rtps wtps bread/s bwrtn/s 15:59:01 409.91 253.51 156.40 13312.72 41302.31 16:00:01 23.98 10.05 13.93 569.85 1723.93 16:01:01 2.65 0.05 2.60 0.80 50.67 16:02:01 1.11 0.45 0.67 25.42 11.53 16:03:01 0.58 0.03 0.55 1.07 5.23 16:04:01 0.63 0.02 0.62 0.53 6.03 16:05:01 0.73 0.03 0.70 0.67 8.36 Average: 62.14 37.32 24.82 1965.76 6091.46 15:58:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:59:01 74160 1808144 96.06 2620 935112 1463724 49.94 682788 919440 43716 16:00:01 601828 1280476 68.03 2524 695032 940436 32.09 437156 646128 8 16:01:01 605012 1277292 67.86 2524 694952 918292 31.33 437040 644416 8 16:02:01 604508 1277796 67.88 2524 695636 916480 31.27 442996 638776 8 16:03:01 601456 1280848 68.05 2524 695640 916660 31.28 466796 618260 8 16:04:01 602384 1279920 68.00 2524 695648 916516 31.27 465916 618260 8 16:05:01 602008 1280296 68.02 2524 695668 916624 31.27 466732 618276 12 Average: 527337 1354967 71.98 2538 729670 998390 34.06 485632 671937 6253 15:58:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:59:01 veth8b2fd65 0.02 0.13 0.00 0.01 0.00 0.00 0.00 15:59:01 eth0 724.84 530.22 6279.84 123.68 0.00 0.00 0.00 15:59:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 15:59:01 docker0 20.52 22.85 1.91 57.65 0.00 0.00 0.00 16:00:01 eth0 7.70 4.43 7.43 2.97 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 0.48 0.07 0.02 0.01 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 16:02:01 eth0 0.57 0.13 0.10 0.01 0.00 0.00 0.00 16:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:03:01 eth0 0.43 0.42 0.26 0.21 0.00 0.00 0.00 16:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:04:01 eth0 0.72 0.18 0.18 0.07 0.00 0.00 0.00 16:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:05:01 eth0 0.40 0.38 0.27 0.21 0.00 0.00 0.00 16:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 100.19 73.29 882.18 17.73 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.90 3.23 0.27 8.14 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) 15:57:33 LINUX RESTART 15:58:02 CPU %user %nice %system %iowait %steal %idle 15:59:01 all 27.51 0.00 9.08 3.17 0.04 60.21 15:59:01 0 27.21 0.00 10.01 2.43 0.03 60.31 15:59:01 1 28.35 0.00 8.81 3.59 0.05 59.20 15:59:01 2 26.40 0.00 8.96 4.07 0.03 60.53 15:59:01 3 28.06 0.00 8.55 2.59 0.02 60.78 16:00:01 all 12.73 0.00 2.44 2.59 0.01 82.23 16:00:01 0 13.13 0.00 2.53 3.11 0.00 81.23 16:00:01 1 12.98 0.00 2.54 3.11 0.00 81.37 16:00:01 2 12.15 0.00 2.32 1.94 0.02 83.57 16:00:01 3 12.66 0.00 2.36 2.20 0.00 82.77 16:01:01 all 0.19 0.00 0.06 0.00 0.00 99.75 16:01:01 0 0.07 0.00 0.07 0.00 0.00 99.87 16:01:01 1 0.53 0.00 0.03 0.00 0.00 99.43 16:01:01 2 0.08 0.00 0.07 0.00 0.00 99.85 16:01:01 3 0.07 0.00 0.05 0.00 0.02 99.87 16:02:01 all 0.19 0.00 0.08 0.01 0.00 99.72 16:02:01 0 0.05 0.00 0.08 0.00 0.00 99.87 16:02:01 1 0.55 0.00 0.07 0.00 0.00 99.38 16:02:01 2 0.10 0.00 0.03 0.00 0.00 99.87 16:02:01 3 0.07 0.00 0.18 0.02 0.00 99.73 16:03:01 all 0.19 0.00 0.08 0.00 0.00 99.73 16:03:01 0 0.02 0.00 0.02 0.00 0.00 99.97 16:03:01 1 0.57 0.00 0.03 0.00 0.00 99.40 16:03:01 2 0.13 0.00 0.08 0.00 0.00 99.78 16:03:01 3 0.03 0.00 0.17 0.00 0.00 99.80 16:04:01 all 0.18 0.00 0.05 0.00 0.00 99.77 16:04:01 0 0.07 0.00 0.05 0.00 0.00 99.88 16:04:01 1 0.55 0.00 0.05 0.00 0.02 99.38 16:04:01 2 0.10 0.00 0.05 0.00 0.00 99.85 16:04:01 3 0.03 0.00 0.03 0.00 0.00 99.93 16:05:01 all 0.19 0.00 0.03 0.00 0.00 99.77 16:05:01 0 0.05 0.00 0.03 0.00 0.00 99.92 16:05:01 1 0.53 0.00 0.03 0.00 0.00 99.43 16:05:01 2 0.12 0.00 0.05 0.00 0.02 99.82 16:05:01 3 0.05 0.00 0.03 0.00 0.00 99.92 Average: all 5.78 0.00 1.65 0.81 0.01 91.75 Average: 0 5.69 0.00 1.79 0.78 0.00 91.73 Average: 1 6.20 0.00 1.62 0.94 0.01 91.23 Average: 2 5.48 0.00 1.62 0.84 0.01 92.05 Average: 3 5.74 0.00 1.59 0.68 0.00 91.99