---> uname -a: Linux 77208ea9aec2 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 7.0G 43.0G 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 7.0G 43.0G 14% /etc/resolv.conf /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hostname /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hosts /dev/vda1 50.0G 7.0G 43.0G 14% /var/log/sa-host /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/dry_go-mod-core-contracts_PR-303 /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/dry_go-mod-core-contracts_PR-303@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 638 127 0 1071 1091 Swap: 1023 1 1022 ---> 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) 09/25/20 _x86_64_ (4 CPU) 06:09:48 LINUX RESTART (4 CPU) 06:11:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 06:12:01 23.66 4.39 19.26 0.00 1134.05 2113.33 0.00 06:13:01 0.30 0.00 0.30 0.00 0.00 4.68 0.00 06:14:02 0.40 0.00 0.40 0.00 0.00 6.11 0.00 06:15:01 0.25 0.00 0.25 0.00 0.00 3.01 0.00 06:16:01 0.76 0.25 0.52 0.00 17.15 11.54 0.00 06:17:01 0.42 0.02 0.40 0.00 0.13 5.64 0.00 06:18:01 75.74 46.84 28.90 0.00 5347.75 5569.37 0.00 Average: 14.54 7.37 7.16 0.00 930.71 1104.65 0.00 06:11:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:12:01 172612 0 552832 29.38 2620 1153492 1148296 39.19 421272 1125744 20 06:13:01 181732 0 543708 28.90 2620 1153496 1092188 37.27 414744 1124152 8 06:14:02 184272 0 541160 28.76 2620 1153504 1058468 36.12 413616 1123352 20 06:15:01 185016 0 540416 28.72 2620 1153504 1058264 36.12 417232 1119724 16 06:16:01 179028 0 545768 29.01 2620 1154140 1070904 36.55 421988 1120184 16 06:17:01 177984 0 546800 29.06 2620 1154152 1070916 36.55 455076 1088128 12 06:18:01 101912 0 622852 33.10 2620 1154172 1263848 43.13 432324 1145604 22736 Average: 168937 0 556219 29.56 2620 1153780 1108983 37.85 425179 1120984 3261 06:11:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:12:01 eth0 29.10 25.80 35.22 38.74 0.00 0.00 0.00 0.00 06:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:12:01 docker0 4.67 3.58 0.96 11.21 0.00 0.00 0.00 0.00 06:13:01 eth0 2.18 1.12 2.84 0.08 0.00 0.00 0.00 0.00 06:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:14:02 eth0 1.30 0.70 0.57 0.37 0.00 0.00 0.00 0.00 06:14:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:14:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:15:01 eth0 0.10 0.08 0.01 0.04 0.00 0.00 0.00 0.00 06:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:16:01 eth0 7.11 4.09 6.40 2.95 0.00 0.00 0.00 0.00 06:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:17:01 eth0 1.53 1.25 1.18 0.66 0.00 0.00 0.00 0.00 06:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:18:01 eth0 85.69 68.90 741.27 11.36 0.00 0.00 0.00 0.00 06:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 18.19 14.60 112.77 7.76 0.00 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.67 0.51 0.14 1.61 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) 09/25/20 _x86_64_ (4 CPU) 06:09:48 LINUX RESTART (4 CPU) 06:11:01 CPU %user %nice %system %iowait %steal %idle 06:12:01 all 1.78 0.00 1.29 0.47 3.88 92.58 06:12:01 0 1.50 0.00 1.40 0.50 3.78 92.81 06:12:01 1 2.13 0.00 1.50 0.15 3.86 92.37 06:12:01 2 1.57 0.00 1.01 1.06 3.54 92.81 06:12:01 3 1.93 0.00 1.24 0.18 4.34 92.31 06:13:01 all 0.13 0.00 0.07 0.00 0.37 99.43 06:13:01 0 0.03 0.00 0.10 0.00 0.73 99.14 06:13:01 1 0.38 0.00 0.07 0.00 0.18 99.37 06:13:01 2 0.02 0.00 0.08 0.00 0.30 99.60 06:13:01 3 0.10 0.00 0.05 0.00 0.25 99.60 06:14:02 all 0.10 0.00 0.03 0.00 0.23 99.64 06:14:02 0 0.03 0.00 0.03 0.00 0.37 99.57 06:14:02 1 0.28 0.00 0.03 0.00 0.22 99.47 06:14:02 2 0.00 0.00 0.03 0.00 0.10 99.87 06:14:02 3 0.08 0.00 0.02 0.00 0.25 99.65 06:15:01 all 0.10 0.00 0.05 0.00 0.15 99.70 06:15:01 0 0.03 0.00 0.07 0.00 0.12 99.78 06:15:01 1 0.34 0.00 0.05 0.00 0.15 99.46 06:15:01 2 0.02 0.00 0.03 0.00 0.15 99.80 06:15:01 3 0.02 0.00 0.03 0.00 0.17 99.78 06:16:01 all 0.17 0.00 0.07 0.00 0.53 99.23 06:16:01 0 0.05 0.00 0.05 0.00 0.40 99.50 06:16:01 1 0.40 0.00 0.07 0.00 0.51 99.02 06:16:01 2 0.10 0.00 0.10 0.02 0.88 98.91 06:16:01 3 0.12 0.00 0.05 0.00 0.33 99.50 06:17:01 all 0.11 0.00 0.12 0.00 0.49 99.28 06:17:01 0 0.03 0.00 0.07 0.00 0.48 99.42 06:17:01 1 0.07 0.00 0.23 0.00 0.28 99.42 06:17:01 2 0.30 0.00 0.07 0.00 0.76 98.87 06:17:01 3 0.03 0.00 0.13 0.00 0.43 99.40 06:18:01 all 2.30 0.00 1.62 1.21 5.38 89.49 06:18:01 0 2.08 0.00 1.14 0.38 5.50 90.90 06:18:01 1 2.40 0.00 2.11 1.38 5.20 88.91 06:18:01 2 2.39 0.00 1.59 2.48 5.22 88.32 06:18:01 3 2.34 0.00 1.62 0.61 5.62 89.81 Average: all 0.67 0.00 0.47 0.24 1.58 97.04 Average: 0 0.54 0.00 0.41 0.13 1.63 97.29 Average: 1 0.86 0.00 0.58 0.22 1.49 96.85 Average: 2 0.63 0.00 0.42 0.51 1.57 96.87 Average: 3 0.66 0.00 0.45 0.11 1.64 97.13