---> uname -a: Linux 0dab7103e51b 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 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_PR-250 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-250@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 638 121 0 1078 1093 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) 07/06/20 _x86_64_ (4 CPU) 21:34:07 LINUX RESTART 21:35:01 tps rtps wtps bread/s bwrtn/s 21:36:01 27.75 8.66 19.09 4248.11 2096.40 21:37:01 1.45 0.00 1.45 0.00 28.00 Average: 14.60 4.33 10.27 2124.06 1062.20 21:35:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 21:36:01 162452 1719104 91.37 2620 1154344 1122392 38.31 439796 1118156 16 21:37:01 168828 1712728 91.03 2620 1154348 1079100 36.83 435920 1116436 8 Average: 165640 1715916 91.20 2620 1154346 1100746 37.57 437858 1117296 12 21:35:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 21:36:01 eth0 51.34 40.87 338.45 33.86 0.00 0.00 0.00 21:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:36:01 docker0 5.73 4.13 0.87 8.93 0.00 0.00 0.00 21:37:01 eth0 3.36 0.87 2.65 0.24 0.00 0.00 0.00 21:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 27.35 20.87 170.55 17.05 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.86 2.06 0.44 4.46 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) 07/06/20 _x86_64_ (4 CPU) 21:34:07 LINUX RESTART 21:35:01 CPU %user %nice %system %iowait %steal %idle 21:36:01 all 2.18 0.00 1.33 0.73 0.31 95.44 21:36:01 0 2.16 0.00 1.37 0.55 0.28 95.63 21:36:01 1 2.18 0.00 1.52 0.55 0.22 95.53 21:36:01 2 2.09 0.00 1.26 0.52 0.30 95.83 21:36:01 3 2.31 0.00 1.16 1.34 0.45 94.74 21:37:01 all 0.16 0.00 0.05 0.00 0.10 99.69 21:37:01 0 0.03 0.00 0.02 0.00 0.03 99.92 21:37:01 1 0.07 0.00 0.07 0.00 0.05 99.82 21:37:01 2 0.05 0.00 0.03 0.00 0.17 99.75 21:37:01 3 0.48 0.00 0.07 0.00 0.18 99.27 Average: all 1.17 0.00 0.69 0.37 0.21 97.57 Average: 0 1.09 0.00 0.69 0.28 0.16 97.78 Average: 1 1.12 0.00 0.79 0.28 0.13 97.68 Average: 2 1.07 0.00 0.64 0.26 0.23 97.80 Average: 3 1.39 0.00 0.61 0.67 0.32 97.01