---> uname -a: Linux c35efb9f69aa 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 7.2G 42.8G 14% / 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 7.2G 42.8G 14% /etc/resolv.conf /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hostname /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hosts /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_master /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 673 123 0 1040 1057 Swap: 1023 0 1023 ---> 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 6: eth0@if7: 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) 07/23/20 _x86_64_ (4 CPU) 11:50:54 LINUX RESTART 11:52:01 tps rtps wtps bread/s bwrtn/s 11:53:01 2.33 0.00 2.33 0.00 51.79 11:54:01 0.35 0.00 0.35 0.00 4.75 11:55:01 0.43 0.00 0.43 0.00 6.24 Average: 1.04 0.00 1.04 0.00 20.93 11:52:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:53:01 174208 1707348 90.74 2620 1117900 1075280 36.70 447120 1101440 12 11:54:01 171488 1710068 90.89 2620 1117904 1072476 36.60 452328 1098804 8 11:55:01 171344 1710212 90.89 2620 1117912 1072560 36.60 452840 1098808 8 Average: 172347 1709209 90.84 2620 1117905 1073439 36.63 450763 1099684 9 11:52:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 11:53:01 eth0 0.73 0.12 0.06 0.03 0.00 0.00 0.00 11:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:54:01 eth0 3.98 1.93 3.22 0.31 0.00 0.00 0.00 11:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:55:01 eth0 0.53 0.30 0.28 0.20 0.00 0.00 0.00 11:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 1.75 0.78 1.19 0.18 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 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) 07/23/20 _x86_64_ (4 CPU) 11:50:54 LINUX RESTART 11:52:01 CPU %user %nice %system %iowait %steal %idle 11:53:01 all 0.18 0.00 0.04 0.00 0.00 99.78 11:53:01 0 0.05 0.00 0.07 0.00 0.00 99.88 11:53:01 1 0.03 0.00 0.05 0.00 0.00 99.92 11:53:01 2 0.53 0.00 0.02 0.00 0.00 99.45 11:53:01 3 0.10 0.00 0.05 0.00 0.00 99.85 11:54:01 all 0.18 0.00 0.04 0.00 0.00 99.78 11:54:01 0 0.05 0.00 0.07 0.00 0.00 99.88 11:54:01 1 0.07 0.00 0.02 0.00 0.00 99.92 11:54:01 2 0.58 0.00 0.03 0.00 0.00 99.38 11:54:01 3 0.05 0.00 0.03 0.00 0.00 99.92 11:55:01 all 0.17 0.00 0.03 0.00 0.00 99.80 11:55:01 0 0.03 0.00 0.03 0.00 0.00 99.93 11:55:01 1 0.07 0.00 0.03 0.00 0.00 99.90 11:55:01 2 0.55 0.00 0.05 0.00 0.00 99.40 11:55:01 3 0.02 0.00 0.02 0.00 0.00 99.97 Average: all 0.18 0.00 0.04 0.00 0.00 99.78 Average: 0 0.04 0.00 0.06 0.00 0.00 99.90 Average: 1 0.06 0.00 0.03 0.00 0.00 99.91 Average: 2 0.56 0.00 0.03 0.00 0.00 99.41 Average: 3 0.06 0.00 0.03 0.00 0.00 99.91