---> uname -a: Linux ef3bb3ee94c9 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 774 111 0 951 994 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) 08/14/20 _x86_64_ (4 CPU) 18:10:52 LINUX RESTART 18:12:01 tps rtps wtps bread/s bwrtn/s 18:13:01 2.33 0.00 2.33 0.00 51.02 18:14:01 0.40 0.00 0.40 0.00 5.91 18:15:01 0.23 0.00 0.23 0.00 3.11 18:16:01 237.66 157.03 80.62 6716.03 32361.33 18:17:01 246.13 115.39 130.74 6976.07 32541.57 Average: 97.38 54.50 42.88 2739.34 12996.92 18:12:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 18:13:01 157864 1723692 91.61 2620 1128816 1090932 37.23 426548 1137284 16 18:14:01 159124 1722432 91.54 2620 1128820 1083736 36.99 426408 1136576 8 18:15:01 158552 1723004 91.57 2620 1128828 1083932 36.99 427148 1136576 8 18:16:01 169144 1712412 91.01 2596 1025416 1554712 53.06 557488 955664 204 18:17:01 151108 1730448 91.97 1492 987596 1122948 38.32 621440 820540 80 Average: 159158 1722398 91.54 2390 1079895 1187252 40.52 491806 1037328 63 18:12:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 18:13:01 eth0 2.28 1.20 2.05 0.10 0.00 0.00 0.00 18:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:14:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 18:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:15:01 eth0 1.02 0.35 0.32 0.20 0.00 0.00 0.00 18:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:16:01 veth0074d1d 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:16:01 eth0 630.80 392.08 5010.55 120.58 0.00 0.00 0.00 18:16:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 18:16:01 vethff2e3b0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:17:01 eth0 211.97 149.43 3426.06 75.06 0.00 0.00 0.00 18:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:17:01 docker0 40.74 40.94 3.56 317.74 0.00 0.00 0.00 Average: eth0 76.73 52.85 1467.68 18.44 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 7.42 7.65 0.55 61.61 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) 08/14/20 _x86_64_ (4 CPU) 18:10:52 LINUX RESTART 18:12:01 CPU %user %nice %system %iowait %steal %idle 18:13:01 all 0.14 0.00 0.04 0.00 0.00 99.82 18:13:01 0 0.05 0.00 0.05 0.00 0.00 99.90 18:13:01 1 0.37 0.00 0.03 0.00 0.00 99.60 18:13:01 2 0.03 0.00 0.03 0.00 0.00 99.93 18:13:01 3 0.12 0.00 0.03 0.00 0.00 99.85 18:14:01 all 0.12 0.00 0.03 0.00 0.00 99.85 18:14:01 0 0.03 0.00 0.03 0.00 0.00 99.93 18:14:01 1 0.35 0.00 0.02 0.00 0.00 99.63 18:14:01 2 0.05 0.00 0.05 0.00 0.00 99.90 18:14:01 3 0.05 0.00 0.03 0.00 0.00 99.92 18:15:01 all 0.12 0.00 0.03 0.00 0.00 99.85 18:15:01 0 0.03 0.00 0.03 0.00 0.00 99.93 18:15:01 1 0.38 0.00 0.02 0.00 0.00 99.60 18:15:01 2 0.03 0.00 0.03 0.00 0.00 99.93 18:15:01 3 0.02 0.00 0.03 0.00 0.00 99.95 18:16:01 all 7.53 0.00 4.75 1.89 0.02 85.81 18:16:01 0 7.22 0.00 5.15 1.72 0.03 85.88 18:16:01 1 7.25 0.00 4.97 2.61 0.02 85.15 18:16:01 2 7.83 0.00 4.59 1.28 0.02 86.28 18:16:01 3 7.81 0.00 4.33 1.94 0.02 85.91 18:17:01 all 11.21 0.00 8.06 3.86 0.04 76.83 18:17:01 0 10.12 0.00 6.93 2.41 0.02 80.53 18:17:01 1 10.45 0.00 8.96 4.66 0.05 75.89 18:17:01 2 11.40 0.00 8.01 3.90 0.03 76.65 18:17:01 3 12.88 0.00 8.34 4.50 0.03 74.24 Average: all 3.79 0.00 2.56 1.14 0.01 92.50 Average: 0 3.46 0.00 2.42 0.82 0.01 93.29 Average: 1 3.73 0.00 2.78 1.44 0.01 92.04 Average: 2 3.84 0.00 2.52 1.03 0.01 92.61 Average: 3 4.13 0.00 2.53 1.27 0.01 92.06