---> uname -a: Linux 52b9c7311f8a 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: 2933.396 BogoMIPS: 5866.79 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-286 /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/dry_go-mod-core-contracts_PR-286@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 642 131 0 1063 1088 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) 09/15/20 _x86_64_ (4 CPU) 22:56:13 LINUX RESTART (4 CPU) 22:57:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 22:58:01 33.98 11.42 22.56 0.00 4459.33 2164.16 0.00 22:59:02 1.67 0.00 1.67 0.00 0.00 30.86 0.00 23:00:01 0.41 0.00 0.41 0.00 0.00 5.28 0.00 23:01:01 0.20 0.02 0.18 0.00 0.13 2.01 0.00 23:02:01 0.45 0.12 0.33 0.00 2.13 6.31 0.00 23:03:01 0.37 0.02 0.35 0.00 0.13 4.35 0.00 23:04:01 30.01 29.71 0.30 0.00 3230.77 9.48 0.00 Average: 9.61 5.91 3.69 0.00 1101.76 318.34 0.00 22:57:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 22:58:01 177888 0 564900 30.02 2620 1136148 1132220 38.64 407352 1135664 24 22:59:02 184588 0 558196 29.67 2620 1136152 1080452 36.87 404864 1132368 8 23:00:01 183688 0 559084 29.71 2620 1136164 1080696 36.88 407272 1131236 20 23:01:01 182436 0 560336 29.78 2620 1136164 1082856 36.96 410724 1128588 12 23:02:01 182684 0 559944 29.76 2620 1136308 1081200 36.90 423240 1116392 16 23:03:01 183604 0 559016 29.71 2620 1136316 1081092 36.90 422804 1116392 16 23:04:01 87908 0 587572 31.23 2620 1203456 1117684 38.14 443072 1186572 12 Average: 168971 0 564150 29.98 2620 1145815 1093743 37.33 417047 1135316 15 22:57:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 22:58:01 eth0 70.27 58.47 345.07 38.73 0.00 0.00 0.00 0.00 22:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:58:01 docker0 4.63 3.51 0.94 10.90 0.00 0.00 0.00 0.00 22:59:02 eth0 0.23 0.08 0.01 0.01 0.00 0.00 0.00 0.00 22:59:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:59:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:00:01 eth0 5.00 2.57 3.98 0.35 0.00 0.00 0.00 0.00 23:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:01:01 eth0 0.68 0.08 0.06 0.01 0.00 0.00 0.00 0.00 23:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 eth0 0.82 0.43 0.41 0.24 0.00 0.00 0.00 0.00 23:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 eth0 0.08 0.07 0.01 0.04 0.00 0.00 0.00 0.00 23:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 eth0 7.74 4.43 7.69 2.50 0.00 0.00 0.00 0.00 23:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 12.14 9.47 51.16 6.00 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 0.66 0.50 0.13 1.56 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) 09/15/20 _x86_64_ (4 CPU) 22:56:13 LINUX RESTART (4 CPU) 22:57:01 CPU %user %nice %system %iowait %steal %idle 22:58:01 all 2.79 0.00 1.60 1.06 0.00 94.55 22:58:01 0 3.17 0.00 1.89 0.62 0.02 94.30 22:58:01 1 2.58 0.00 1.69 0.42 0.00 95.32 22:58:01 2 2.46 0.00 1.44 1.20 0.00 94.90 22:58:01 3 2.94 0.00 1.37 2.00 0.00 93.69 22:59:02 all 0.17 0.00 0.05 0.00 0.00 99.79 22:59:02 0 0.02 0.00 0.03 0.00 0.00 99.95 22:59:02 1 0.53 0.00 0.07 0.00 0.00 99.40 22:59:02 2 0.08 0.00 0.05 0.00 0.00 99.87 22:59:02 3 0.03 0.00 0.03 0.00 0.00 99.93 23:00:01 all 0.20 0.00 0.04 0.00 0.00 99.76 23:00:01 0 0.07 0.00 0.03 0.00 0.00 99.90 23:00:01 1 0.54 0.00 0.07 0.00 0.00 99.39 23:00:01 2 0.08 0.00 0.05 0.00 0.00 99.86 23:00:01 3 0.10 0.00 0.02 0.00 0.00 99.88 23:01:01 all 0.16 0.00 0.04 0.00 0.00 99.80 23:01:01 0 0.00 0.00 0.03 0.00 0.00 99.97 23:01:01 1 0.55 0.00 0.05 0.00 0.00 99.40 23:01:01 2 0.07 0.00 0.03 0.00 0.00 99.90 23:01:01 3 0.02 0.00 0.03 0.00 0.00 99.95 23:02:01 all 0.26 0.00 0.05 0.00 0.00 99.68 23:02:01 0 0.05 0.00 0.03 0.00 0.00 99.92 23:02:01 1 0.90 0.00 0.12 0.00 0.00 98.98 23:02:01 2 0.05 0.00 0.03 0.00 0.00 99.92 23:02:01 3 0.03 0.00 0.03 0.00 0.02 99.92 23:03:01 all 0.14 0.00 0.02 0.00 0.00 99.83 23:03:01 0 0.00 0.00 0.02 0.00 0.00 99.98 23:03:01 1 0.52 0.00 0.02 0.00 0.00 99.47 23:03:01 2 0.03 0.00 0.03 0.00 0.02 99.92 23:03:01 3 0.02 0.00 0.02 0.00 0.00 99.97 23:04:01 all 0.63 0.00 0.27 0.62 0.00 98.48 23:04:01 0 0.58 0.00 0.25 0.35 0.00 98.82 23:04:01 1 1.02 0.00 0.22 0.18 0.00 98.59 23:04:01 2 0.45 0.00 0.22 0.43 0.00 98.90 23:04:01 3 0.47 0.00 0.38 1.52 0.00 97.63 Average: all 0.62 0.00 0.29 0.24 0.00 98.84 Average: 0 0.56 0.00 0.33 0.14 0.00 98.98 Average: 1 0.95 0.00 0.32 0.09 0.00 98.65 Average: 2 0.46 0.00 0.27 0.23 0.00 99.04 Average: 3 0.52 0.00 0.27 0.50 0.00 98.71