---> uname -a: Linux 896cd1f5d8c5 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: 2933.436 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 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 781 104 0 950 987 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) 06/22/20 _x86_64_ (4 CPU) 16:50:23 LINUX RESTART 16:51:01 tps rtps wtps bread/s bwrtn/s 16:52:01 57.20 13.48 43.72 4858.07 4825.87 16:53:01 1.73 0.00 1.73 0.00 32.22 16:54:01 0.23 0.00 0.23 0.00 2.98 16:55:01 0.57 0.32 0.25 20.78 5.75 16:56:01 417.25 215.92 201.33 9995.67 61020.20 Average: 95.46 45.98 49.48 2976.43 13186.40 16:51:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:52:01 173232 1708324 90.79 2620 1146284 1118628 38.18 403892 1144348 20 16:53:01 179436 1702120 90.46 2620 1146288 1070884 36.55 402224 1140644 8 16:54:01 178296 1703260 90.52 2620 1146296 1071156 36.56 405472 1138672 12 16:55:01 134816 1746740 92.83 2620 1147024 1270540 43.36 441596 1138048 40 16:56:01 78184 1803372 95.84 2104 1037944 1263324 43.11 659228 856400 51772 Average: 148793 1732763 92.09 2517 1124767 1158906 39.55 462482 1083622 10370 16:51:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 16:52:01 eth0 202.55 124.01 571.12 61.99 0.00 0.00 0.00 16:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:52:01 docker0 4.96 3.65 0.82 8.69 0.00 0.00 0.00 16:53:01 eth0 0.68 0.08 0.06 0.01 0.00 0.00 0.00 16:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:54:01 eth0 2.80 1.20 2.07 0.40 0.00 0.00 0.00 16:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:55:01 eth0 5.93 4.03 5.99 2.21 0.00 0.00 0.00 16:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:56:01 eth0 312.14 224.99 7150.49 86.92 0.00 0.00 0.00 16:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:56:01 veth525ea20 27.27 33.79 1.91 159.44 0.00 0.00 0.00 16:56:01 docker0 37.66 42.41 2.88 181.62 0.00 0.00 0.00 Average: eth0 104.87 70.90 1547.00 30.32 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth525ea20 5.46 6.76 0.38 31.91 0.00 0.00 0.00 Average: docker0 7.54 8.49 0.58 36.35 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) 06/22/20 _x86_64_ (4 CPU) 16:50:23 LINUX RESTART 16:51:01 CPU %user %nice %system %iowait %steal %idle 16:52:01 all 5.60 0.00 2.65 2.80 0.15 88.79 16:52:01 0 5.61 0.00 2.76 0.64 0.13 90.86 16:52:01 1 5.62 0.00 2.86 3.84 0.12 87.57 16:52:01 2 5.85 0.00 2.43 3.22 0.17 88.33 16:52:01 3 5.33 0.00 2.59 3.50 0.17 88.42 16:53:01 all 0.06 0.00 0.04 0.00 0.01 99.89 16:53:01 0 0.03 0.00 0.03 0.00 0.02 99.92 16:53:01 1 0.03 0.00 0.02 0.00 0.00 99.95 16:53:01 2 0.13 0.00 0.03 0.00 0.00 99.83 16:53:01 3 0.03 0.00 0.03 0.00 0.05 99.88 16:54:01 all 0.15 0.00 0.03 0.00 0.00 99.81 16:54:01 0 0.03 0.00 0.02 0.00 0.00 99.95 16:54:01 1 0.05 0.00 0.03 0.00 0.00 99.92 16:54:01 2 0.50 0.00 0.03 0.00 0.00 99.47 16:54:01 3 0.05 0.00 0.05 0.00 0.02 99.88 16:55:01 all 0.46 0.00 0.35 0.01 0.03 99.15 16:55:01 0 0.97 0.00 0.45 0.02 0.02 98.55 16:55:01 1 0.30 0.00 0.25 0.00 0.03 99.42 16:55:01 2 0.38 0.00 0.45 0.02 0.02 99.13 16:55:01 3 0.18 0.00 0.25 0.00 0.05 99.52 16:56:01 all 16.65 0.00 10.16 3.88 1.40 67.91 16:56:01 0 17.20 0.00 9.36 2.96 1.55 68.93 16:56:01 1 15.78 0.00 9.35 2.45 1.38 71.04 16:56:01 2 16.25 0.00 11.27 4.48 1.24 66.76 16:56:01 3 17.36 0.00 10.61 5.66 1.45 64.91 Average: all 4.50 0.00 2.59 1.32 0.31 91.28 Average: 0 4.69 0.00 2.48 0.71 0.34 91.79 Average: 1 4.28 0.00 2.46 1.24 0.30 91.72 Average: 2 4.54 0.00 2.78 1.52 0.28 90.88 Average: 3 4.49 0.00 2.65 1.80 0.34 90.72