---> uname -a: Linux 4bfc3e3230aa 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 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/3 /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/go-mod-core-contracts/3@tmp ---> free -m: total used free shared buff/cache available Mem: 1838 672 74 0 1091 1070 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) 01/21/20 _x86_64_ (4 CPU) 04:04:03 LINUX RESTART 04:05:02 tps rtps wtps bread/s bwrtn/s 04:06:01 368.66 248.22 120.45 9603.25 30551.85 04:07:01 5.04 0.17 4.88 5.19 139.39 04:08:01 0.42 0.00 0.42 0.00 6.25 04:09:01 0.25 0.00 0.25 0.00 3.36 04:10:01 0.30 0.03 0.27 1.07 3.33 04:11:01 0.30 0.03 0.27 0.67 3.75 04:12:01 0.23 0.00 0.23 0.00 3.10 04:13:01 0.25 0.00 0.25 0.00 3.33 Average: 46.31 30.64 15.68 1185.15 3788.04 04:05:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:06:01 603900 1278404 67.92 2256 685912 1025568 34.99 488108 594608 19548 04:07:01 650748 1231556 65.43 2256 653292 937928 32.00 470228 573436 12 04:08:01 653156 1229148 65.30 2256 653300 918384 31.33 469536 572192 16 04:09:01 653384 1228920 65.29 2256 653304 918384 31.33 481756 559912 8 04:10:01 651636 1230668 65.38 2256 653308 918672 31.34 483772 559816 20 04:11:01 650536 1231768 65.44 2256 653332 918708 31.35 509036 535684 16 04:12:01 650132 1232172 65.46 2256 653336 918732 31.35 509224 535684 12 04:13:01 651516 1230788 65.39 2256 653396 918516 31.34 508128 535696 24 Average: 645626 1236678 65.70 2256 657398 934362 31.88 489974 558379 2457 04:05:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 04:06:01 eth0 55.98 35.77 78.79 14.13 0.00 0.00 0.00 04:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:06:01 vethd492208 0.00 0.14 0.00 0.01 0.00 0.00 0.00 04:06:01 docker0 19.99 24.10 1.89 57.78 0.00 0.00 0.00 04:07:01 eth0 1.52 1.27 2.69 0.42 0.00 0.00 0.00 04:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:08:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 04:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:09:01 eth0 1.28 0.07 0.12 0.01 0.00 0.00 0.00 04:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:10:01 eth0 2.26 0.48 0.66 0.24 0.00 0.00 0.00 04:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:11:01 eth0 1.92 0.53 0.63 0.42 0.00 0.00 0.00 04:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:12:01 eth0 0.95 0.63 0.54 0.40 0.00 0.00 0.00 04:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:13:01 eth0 0.15 0.08 0.01 0.01 0.00 0.00 0.00 04:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 7.93 4.81 10.30 1.93 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.11 2.64 0.16 6.22 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) 01/21/20 _x86_64_ (4 CPU) 04:04:03 LINUX RESTART 04:05:02 CPU %user %nice %system %iowait %steal %idle 04:06:01 all 34.13 0.00 10.88 5.14 3.17 46.67 04:06:01 0 35.04 0.00 10.60 4.88 3.28 46.20 04:06:01 1 33.00 0.00 10.96 5.53 3.16 47.35 04:06:01 2 34.76 0.00 11.07 7.05 3.00 44.12 04:06:01 3 33.74 0.00 10.91 3.11 3.21 49.03 04:07:01 all 0.27 0.00 0.20 0.01 0.08 99.43 04:07:01 0 0.12 0.00 0.18 0.00 0.07 99.63 04:07:01 1 0.30 0.00 0.13 0.02 0.10 99.45 04:07:01 2 0.10 0.00 0.15 0.02 0.07 99.67 04:07:01 3 0.55 0.00 0.33 0.02 0.08 99.02 04:08:01 all 0.17 0.00 0.04 0.00 0.04 99.75 04:08:01 0 0.03 0.00 0.02 0.00 0.05 99.90 04:08:01 1 0.08 0.00 0.07 0.00 0.02 99.83 04:08:01 2 0.08 0.00 0.07 0.00 0.02 99.83 04:08:01 3 0.50 0.00 0.02 0.00 0.08 99.40 04:09:01 all 0.18 0.00 0.05 0.00 0.03 99.73 04:09:01 0 0.05 0.00 0.02 0.00 0.05 99.88 04:09:01 1 0.05 0.00 0.05 0.00 0.02 99.88 04:09:01 2 0.07 0.00 0.10 0.00 0.05 99.78 04:09:01 3 0.53 0.00 0.03 0.00 0.00 99.43 04:10:01 all 0.23 0.00 0.10 0.00 0.04 99.63 04:10:01 0 0.05 0.00 0.03 0.00 0.03 99.88 04:10:01 1 0.25 0.00 0.07 0.00 0.05 99.63 04:10:01 2 0.52 0.00 0.23 0.00 0.03 99.22 04:10:01 3 0.12 0.00 0.07 0.00 0.03 99.78 04:11:01 all 0.16 0.00 0.08 0.00 0.04 99.72 04:11:01 0 0.03 0.00 0.03 0.00 0.05 99.88 04:11:01 1 0.38 0.00 0.08 0.00 0.05 99.48 04:11:01 2 0.18 0.00 0.18 0.00 0.05 99.58 04:11:01 3 0.03 0.00 0.05 0.00 0.02 99.90 04:12:01 all 0.18 0.00 0.05 0.00 0.02 99.75 04:12:01 0 0.52 0.00 0.05 0.00 0.05 99.38 04:12:01 1 0.13 0.00 0.05 0.00 0.00 99.82 04:12:01 2 0.05 0.00 0.05 0.00 0.03 99.87 04:12:01 3 0.05 0.00 0.03 0.00 0.02 99.90 04:13:01 all 0.18 0.00 0.05 0.00 0.06 99.71 04:13:01 0 0.52 0.00 0.03 0.00 0.03 99.42 04:13:01 1 0.07 0.00 0.05 0.00 0.05 99.83 04:13:01 2 0.05 0.00 0.05 0.00 0.10 99.80 04:13:01 3 0.07 0.00 0.07 0.00 0.03 99.83 Average: all 4.20 0.00 1.36 0.61 0.41 93.42 Average: 0 4.31 0.00 1.30 0.58 0.43 93.38 Average: 1 4.06 0.00 1.36 0.66 0.41 93.52 Average: 2 4.24 0.00 1.41 0.84 0.40 93.11 Average: 3 4.20 0.00 1.36 0.37 0.41 93.66