---> uname -a: Linux 083f1bcc50bb 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 8.2G 41.8G 16% / 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 8.2G 41.8G 16% /etc/resolv.conf /dev/vda1 50.0G 8.2G 41.8G 16% /etc/hostname /dev/vda1 50.0G 8.2G 41.8G 16% /etc/hosts /dev/vda1 50.0G 8.2G 41.8G 16% /var/log/sa-host /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/dry_go-mod-core-contracts_master /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/dry_go-mod-core-contracts_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 786 123 0 927 986 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) 09/25/20 _x86_64_ (4 CPU) 06:20:03 LINUX RESTART (4 CPU) 06:21:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 06:22:01 23.64 4.61 19.03 0.00 1103.96 2115.90 0.00 06:23:01 1.65 0.00 1.65 0.00 0.00 31.07 0.00 06:24:01 0.27 0.00 0.27 0.00 0.00 3.05 0.00 06:25:01 158.03 90.78 67.25 0.00 5212.92 30384.05 0.00 06:26:01 271.27 120.80 150.47 0.00 6525.10 34654.20 0.00 Average: 91.01 43.25 47.75 0.00 2569.23 13442.08 0.00 06:21:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:22:01 158420 0 587880 31.24 2620 1132636 1114272 38.03 454068 1107776 20 06:23:01 164368 0 581928 30.93 2620 1132640 1072744 36.61 452364 1104536 8 06:24:01 163452 0 582836 30.98 2620 1132648 1072888 36.62 453176 1104540 8 06:25:01 159072 0 663348 35.26 2620 1056516 1383412 47.21 469260 1059332 20 06:26:01 239856 0 732424 38.93 1636 907640 1185944 40.47 608716 745404 36 Average: 177034 0 629683 33.47 2423 1072416 1165852 39.79 487517 1024318 18 06:21:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:22:01 eth0 33.98 26.21 37.55 32.79 0.00 0.00 0.00 0.00 06:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:22:01 docker0 4.21 2.95 0.95 11.15 0.00 0.00 0.00 0.00 06:23:01 eth0 0.80 0.08 0.07 0.01 0.00 0.00 0.00 0.00 06:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:24:01 eth0 1.05 0.30 0.32 0.20 0.00 0.00 0.00 0.00 06:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:25:01 veth8d81f13 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 06:25:01 eth0 395.27 355.51 3784.68 29.53 0.00 0.00 0.00 0.00 06:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:26:01 eth0 484.13 412.49 3584.60 100.35 0.00 0.00 0.00 0.00 06:26:01 veth4a7ed9b 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 06:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:26:01 docker0 43.70 48.48 2.69 320.14 0.00 0.00 0.00 0.00 Average: eth0 183.11 158.97 1481.90 32.59 0.00 0.00 0.00 0.00 Average: veth4a7ed9b 0.00 0.01 0.00 0.00 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 9.59 10.29 0.73 66.30 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) 06:20:03 LINUX RESTART (4 CPU) 06:21:01 CPU %user %nice %system %iowait %steal %idle 06:22:01 all 1.88 0.00 1.03 0.94 0.02 96.14 06:22:01 0 1.49 0.00 0.94 0.47 0.02 97.09 06:22:01 1 1.86 0.00 1.15 0.45 0.02 96.52 06:22:01 2 2.40 0.00 1.17 2.74 0.03 93.66 06:22:01 3 1.77 0.00 0.85 0.08 0.02 97.28 06:23:01 all 0.12 0.00 0.04 0.00 0.00 99.84 06:23:01 0 0.05 0.00 0.03 0.00 0.00 99.92 06:23:01 1 0.32 0.00 0.03 0.00 0.00 99.65 06:23:01 2 0.08 0.00 0.05 0.00 0.00 99.87 06:23:01 3 0.02 0.00 0.05 0.00 0.00 99.93 06:24:01 all 0.09 0.00 0.03 0.00 0.00 99.87 06:24:01 0 0.03 0.00 0.03 0.00 0.00 99.93 06:24:01 1 0.22 0.00 0.03 0.00 0.00 99.75 06:24:01 2 0.07 0.00 0.03 0.00 0.02 99.88 06:24:01 3 0.03 0.00 0.03 0.00 0.00 99.93 06:25:01 all 6.25 0.00 3.47 1.15 0.05 89.08 06:25:01 0 6.38 0.00 3.53 0.62 0.05 89.41 06:25:01 1 6.40 0.00 2.79 0.94 0.05 89.82 06:25:01 2 6.53 0.00 3.85 0.57 0.05 89.00 06:25:01 3 5.70 0.00 3.72 2.46 0.03 88.09 06:26:01 all 12.80 0.00 7.88 3.90 0.10 75.32 06:26:01 0 11.79 0.00 7.72 3.87 0.10 76.52 06:26:01 1 12.71 0.00 8.31 1.74 0.08 77.15 06:26:01 2 15.19 0.00 8.20 4.12 0.07 72.42 06:26:01 3 11.49 0.00 7.30 5.87 0.14 75.20 Average: all 4.19 0.00 2.47 1.19 0.03 92.12 Average: 0 3.91 0.00 2.43 0.98 0.03 92.65 Average: 1 4.27 0.00 2.45 0.62 0.03 92.62 Average: 2 4.82 0.00 2.64 1.48 0.03 91.03 Average: 3 3.77 0.00 2.37 1.66 0.04 92.16