---> uname -a: Linux b9de04e46c3d 3.10.0-1127.el7.x86_64 #1 SMP Tue Mar 31 23:36:51 UTC 2020 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 Itlb multihit: KVM: Mitigation: Split huge pages Vulnerability L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT disabled Vulnerability Mds: Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline, IBPB Vulnerability Tsx async abort: Not affected 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 8.5G 41.5G 17% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 918.7M 0 918.7M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 8.5G 41.5G 17% /etc/resolv.conf /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hostname /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hosts /dev/vda1 50.0G 8.5G 41.5G 17% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/dry_go-mod-core-contracts_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/dry_go-mod-core-contracts_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 776 117 0 943 991 Swap: 1023 3 1020 ---> 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 16: eth0@if17: 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 3.10.0-1127.el7.x86_64 (centos-7-docker-5eb134fb-50d3-af0a-1802-9f6851a35141.vexxhost.lo) 08/17/20 _x86_64_ (4 CPU) 16:05:42 LINUX RESTART 16:07:01 tps rtps wtps bread/s bwrtn/s 16:08:01 32.02 10.47 21.55 4384.82 2092.36 16:09:02 1.48 0.00 1.48 0.00 27.54 16:10:01 0.30 0.00 0.30 0.00 3.28 16:11:01 0.23 0.00 0.23 0.00 2.96 16:12:01 0.33 0.00 0.33 0.00 4.94 16:13:01 95.92 45.83 50.09 1801.49 20297.74 16:14:02 278.01 142.57 135.45 6152.36 35503.52 16:15:01 146.91 93.74 53.16 7266.15 9039.58 Average: 69.60 36.64 32.96 2449.46 8418.05 16:07:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:08:01 178136 1703420 90.53 2620 1138556 1148240 39.19 404448 1138308 20 16:09:02 189456 1692100 89.93 2620 1138560 1076672 36.74 399644 1133556 8 16:10:01 189636 1691920 89.92 2620 1138568 1076672 36.74 399776 1133556 8 16:11:01 186428 1695128 90.09 2620 1138568 1076964 36.75 409412 1126840 16 16:12:01 185736 1695820 90.13 2620 1138576 1076988 36.76 409760 1126844 8 16:13:01 67700 1813856 96.40 2620 1139144 1510128 51.54 494188 1114712 31028 16:14:02 97144 1784412 94.84 2596 998276 1550596 52.92 603300 910072 88516 16:15:01 72496 1809060 96.15 2160 1011184 1595364 54.45 666060 856760 21840 Average: 145842 1735715 92.25 2560 1105179 1263953 43.14 473324 1067581 17681 16:07:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 16:08:01 eth0 47.34 38.65 342.20 39.02 0.00 0.00 0.00 16:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:08:01 docker0 3.48 3.43 0.82 10.24 0.00 0.00 0.00 16:09:02 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 16:09:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:09:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:10:01 eth0 0.59 0.08 0.06 0.01 0.00 0.00 0.00 16:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:11:01 eth0 2.11 1.20 3.07 0.26 0.00 0.00 0.00 16:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:12:01 eth0 0.53 0.43 0.39 0.26 0.00 0.00 0.00 16:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:13:01 eth0 100.25 59.58 3747.47 8.66 0.00 0.00 0.00 16:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:14:02 eth0 137.17 91.06 3309.89 67.11 0.00 0.00 0.00 16:14:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:14:02 docker0 14.32 13.92 1.18 121.09 0.00 0.00 0.00 16:15:01 eth0 118.90 82.99 581.31 66.86 0.00 0.00 0.00 16:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:15:01 docker0 17.20 37.47 1.31 189.92 0.00 0.00 0.00 Average: eth0 50.94 34.30 1004.21 22.77 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 4.37 6.81 0.41 40.01 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-1127.el7.x86_64 (centos-7-docker-5eb134fb-50d3-af0a-1802-9f6851a35141.vexxhost.lo) 08/17/20 _x86_64_ (4 CPU) 16:05:42 LINUX RESTART 16:07:01 CPU %user %nice %system %iowait %steal %idle 16:08:01 all 1.84 0.00 1.93 0.60 9.68 85.94 16:08:01 0 1.65 0.00 2.00 0.16 10.99 85.21 16:08:01 1 1.58 0.00 1.84 0.21 9.82 86.54 16:08:01 2 2.29 0.00 1.35 1.16 8.74 86.46 16:08:01 3 1.84 0.00 2.55 0.89 9.12 85.60 16:09:02 all 0.12 0.00 0.05 0.00 0.17 99.65 16:09:02 0 0.05 0.00 0.03 0.00 0.17 99.75 16:09:02 1 0.05 0.00 0.05 0.00 0.10 99.80 16:09:02 2 0.35 0.00 0.03 0.00 0.13 99.48 16:09:02 3 0.05 0.00 0.10 0.00 0.25 99.60 16:10:01 all 0.15 0.00 0.03 0.00 0.14 99.67 16:10:01 0 0.03 0.00 0.03 0.00 0.14 99.80 16:10:01 1 0.02 0.00 0.03 0.00 0.05 99.90 16:10:01 2 0.49 0.00 0.02 0.00 0.17 99.32 16:10:01 3 0.07 0.00 0.05 0.00 0.24 99.64 16:11:01 all 0.15 0.00 0.04 0.00 0.15 99.66 16:11:01 0 0.30 0.00 0.03 0.00 0.17 99.50 16:11:01 1 0.08 0.00 0.02 0.00 0.05 99.85 16:11:01 2 0.15 0.00 0.02 0.00 0.08 99.75 16:11:01 3 0.07 0.00 0.07 0.00 0.32 99.55 16:12:01 all 0.10 0.00 0.04 0.00 0.58 99.28 16:12:01 0 0.32 0.00 0.03 0.00 0.63 99.02 16:12:01 1 0.05 0.00 0.05 0.00 0.96 98.94 16:12:01 2 0.02 0.00 0.03 0.00 0.20 99.75 16:12:01 3 0.02 0.00 0.05 0.00 0.53 99.40 16:13:01 all 3.08 0.00 2.16 0.38 9.21 85.18 16:13:01 0 3.44 0.00 2.19 0.38 9.76 84.23 16:13:01 1 2.92 0.00 2.13 0.28 9.44 85.23 16:13:01 2 3.23 0.00 2.52 0.26 8.76 85.23 16:13:01 3 2.69 0.00 1.76 0.61 8.92 86.02 16:14:02 all 7.81 0.00 6.18 2.53 20.11 63.37 16:14:02 0 6.48 0.00 5.04 1.74 20.59 66.16 16:14:02 1 8.64 0.00 6.52 3.49 20.66 60.69 16:14:02 2 8.54 0.00 7.01 2.35 19.79 62.32 16:14:02 3 7.65 0.00 6.25 2.54 19.38 64.18 16:15:01 all 5.03 0.00 3.98 3.03 10.46 77.50 16:15:01 0 3.38 0.00 4.10 1.89 11.23 79.40 16:15:01 1 3.84 0.00 3.78 1.58 10.28 80.52 16:15:01 2 8.46 0.00 3.61 5.30 10.46 72.17 16:15:01 3 4.46 0.00 4.41 3.38 9.89 77.86 Average: all 2.32 0.00 1.83 0.83 6.43 88.58 Average: 0 2.00 0.00 1.72 0.53 6.89 88.85 Average: 1 2.19 0.00 1.83 0.71 6.54 88.73 Average: 2 2.96 0.00 1.85 1.14 6.12 87.94 Average: 3 2.14 0.00 1.93 0.94 6.18 88.82