---> uname -a: Linux 2df5d0601365 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 782 112 0 942 984 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) 08/06/20 _x86_64_ (4 CPU) 16:17:37 LINUX RESTART 16:19:01 tps rtps wtps bread/s bwrtn/s 16:20:01 8.84 1.53 7.31 79.72 208.72 16:21:01 1.75 0.00 1.75 0.00 32.80 16:22:01 0.30 0.00 0.30 0.00 5.38 16:23:01 58.65 26.72 31.93 1229.55 18124.29 16:24:01 326.88 168.37 158.51 6802.66 40595.71 16:25:02 121.18 85.87 35.32 6967.08 6140.19 Average: 86.27 47.08 39.19 2513.10 10850.02 16:19:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:20:01 180196 1701360 90.42 2620 1145956 1097756 37.46 406668 1132804 36 16:21:01 184500 1697056 90.19 2620 1145904 1063808 36.31 405908 1130112 8 16:22:01 181928 1699628 90.33 2620 1145912 1064140 36.32 409068 1129452 8 16:23:01 142032 1739524 92.45 2620 1064876 1505432 51.38 485736 1051368 85356 16:24:01 164012 1717544 91.28 2588 1007056 1092008 37.27 520048 914788 65368 16:25:02 96688 1784868 94.86 1940 1028452 1187488 40.53 615404 874816 8 Average: 158226 1723330 91.59 2501 1089693 1168439 39.88 473805 1038890 25131 16:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 16:20:01 eth0 15.47 13.36 21.19 14.81 0.00 0.00 0.00 16:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:20:01 docker0 4.06 2.69 0.82 9.60 0.00 0.00 0.00 16:21:01 eth0 0.60 0.08 0.06 0.01 0.00 0.00 0.00 16:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:22:01 eth0 1.65 0.98 2.95 0.24 0.00 0.00 0.00 16:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:23:01 eth0 103.79 58.62 3756.15 7.55 0.00 0.00 0.00 16:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:24:01 eth0 143.77 106.15 3332.44 23.04 0.00 0.00 0.00 16:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:24:01 docker0 15.61 16.64 1.22 121.08 0.00 0.00 0.00 16:25:02 eth0 90.07 71.55 251.33 76.00 0.00 0.00 0.00 16:25:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:25:02 docker0 20.92 28.70 1.48 185.11 0.00 0.00 0.00 Average: eth0 59.22 41.79 1226.96 20.28 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 6.77 8.01 0.59 52.64 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) 08/06/20 _x86_64_ (4 CPU) 16:17:37 LINUX RESTART 16:19:01 CPU %user %nice %system %iowait %steal %idle 16:20:01 all 0.81 0.00 0.40 0.13 1.28 97.38 16:20:01 0 1.24 0.00 0.43 0.00 1.14 97.18 16:20:01 1 0.71 0.00 0.33 0.05 1.27 97.63 16:20:01 2 0.76 0.00 0.28 0.15 1.30 97.51 16:20:01 3 0.50 0.00 0.51 0.33 1.43 97.23 16:21:01 all 0.10 0.00 0.07 0.00 0.82 99.00 16:21:01 0 0.07 0.00 0.08 0.00 0.94 98.91 16:21:01 1 0.02 0.00 0.07 0.00 0.70 99.22 16:21:01 2 0.31 0.00 0.10 0.00 0.88 98.71 16:21:01 3 0.02 0.00 0.08 0.00 0.73 99.17 16:22:01 all 0.15 0.00 0.03 0.00 0.48 99.34 16:22:01 0 0.07 0.00 0.02 0.00 0.42 99.50 16:22:01 1 0.07 0.00 0.02 0.00 0.25 99.67 16:22:01 2 0.36 0.00 0.02 0.00 0.73 98.89 16:22:01 3 0.10 0.00 0.05 0.00 0.55 99.30 16:23:01 all 3.22 0.00 2.19 0.22 5.18 89.19 16:23:01 0 2.91 0.00 2.18 0.20 5.51 89.20 16:23:01 1 3.37 0.00 2.46 0.46 5.11 88.60 16:23:01 2 3.62 0.00 2.16 0.07 5.30 88.85 16:23:01 3 2.98 0.00 1.93 0.14 4.79 90.17 16:24:01 all 8.01 0.00 6.47 2.69 19.56 63.26 16:24:01 0 6.59 0.00 4.98 2.49 20.99 64.95 16:24:01 1 9.31 0.00 7.46 1.90 18.56 62.76 16:24:01 2 9.12 0.00 7.89 2.98 20.37 59.64 16:24:01 3 7.07 0.00 5.59 3.42 18.31 65.60 16:25:02 all 4.17 0.00 4.07 2.81 12.69 76.27 16:25:02 0 2.51 0.00 4.25 2.44 13.70 77.11 16:25:02 1 4.28 0.00 3.59 1.77 12.34 78.02 16:25:02 2 5.14 0.00 4.55 2.86 12.49 74.96 16:25:02 3 4.73 0.00 3.93 4.19 12.23 74.92 Average: all 2.76 0.00 2.22 0.99 6.73 87.30 Average: 0 2.25 0.00 2.02 0.87 7.22 87.64 Average: 1 2.98 0.00 2.34 0.71 6.43 87.55 Average: 2 3.22 0.00 2.50 1.02 6.86 86.39 Average: 3 2.58 0.00 2.03 1.37 6.40 87.62