---> uname -a: Linux 3ac87981413f 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% /w/workspace/dry_go-mod-core-contracts_PR-271@tmp /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-271 ---> free -m: total used free shared buff/cache available Mem: 1837 673 130 0 1033 1057 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) 08/31/20 _x86_64_ (4 CPU) 18:12:57 LINUX RESTART 18:14:01 tps rtps wtps bread/s bwrtn/s 18:15:01 23.32 4.91 18.41 1498.55 2008.17 18:16:01 0.30 0.00 0.30 0.00 4.59 18:17:01 0.19 0.00 0.19 0.00 2.47 18:18:01 0.32 0.00 0.32 0.00 3.90 18:19:01 99.30 67.80 31.50 5291.93 15065.93 Average: 24.77 14.59 10.18 1363.04 3429.45 18:14:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 18:15:01 149808 1731748 92.04 2620 1130344 1141912 38.97 452440 1117920 20 18:16:01 159096 1722460 91.54 2620 1130348 1074228 36.66 448360 1114720 20 18:17:01 155640 1725916 91.73 2620 1130352 1074468 36.67 451764 1114712 16 18:18:01 156032 1725524 91.71 2620 1130356 1074228 36.66 453772 1112516 16 18:19:01 75620 1805936 95.98 2620 1109676 1523900 52.01 529808 1090292 69704 Average: 139239 1742317 92.60 2620 1126215 1177747 40.19 467229 1110032 13955 18:14:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 18:15:01 eth0 44.47 36.88 339.70 41.72 0.00 0.00 0.00 18:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:15:01 docker0 4.34 3.71 0.88 10.31 0.00 0.00 0.00 18:16:01 eth0 1.13 0.08 0.09 0.01 0.00 0.00 0.00 18:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:17:01 eth0 0.95 0.58 0.55 0.40 0.00 0.00 0.00 18:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:18:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 18:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:19:01 eth0 79.65 48.04 2325.71 8.86 0.00 0.00 0.00 18:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 25.34 17.19 535.15 10.23 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.87 0.74 0.18 2.07 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) 08/31/20 _x86_64_ (4 CPU) 18:12:57 LINUX RESTART 18:14:01 CPU %user %nice %system %iowait %steal %idle 18:15:01 all 1.79 0.00 1.39 0.37 3.50 92.95 18:15:01 0 2.39 0.00 1.74 0.12 3.64 92.12 18:15:01 1 1.29 0.00 1.24 0.20 3.70 93.58 18:15:01 2 1.94 0.00 1.20 0.17 3.32 93.37 18:15:01 3 1.58 0.00 1.40 1.02 3.33 92.68 18:16:01 all 0.12 0.00 0.05 0.00 0.19 99.65 18:16:01 0 0.22 0.00 0.05 0.00 0.15 99.58 18:16:01 1 0.05 0.00 0.05 0.00 0.32 99.58 18:16:01 2 0.17 0.00 0.05 0.00 0.27 99.52 18:16:01 3 0.05 0.00 0.02 0.00 0.03 99.90 18:17:01 all 0.16 0.00 0.03 0.00 0.15 99.66 18:17:01 0 0.03 0.00 0.02 0.00 0.07 99.88 18:17:01 1 0.08 0.00 0.03 0.00 0.19 99.70 18:17:01 2 0.49 0.00 0.05 0.00 0.24 99.22 18:17:01 3 0.05 0.00 0.02 0.00 0.10 99.83 18:18:01 all 0.11 0.00 0.04 0.00 0.24 99.61 18:18:01 0 0.02 0.00 0.05 0.00 0.10 99.83 18:18:01 1 0.03 0.00 0.05 0.00 0.47 99.45 18:18:01 2 0.38 0.00 0.05 0.00 0.37 99.20 18:18:01 3 0.00 0.00 0.03 0.00 0.05 99.92 18:19:01 all 3.64 0.00 2.06 1.17 3.84 89.28 18:19:01 0 2.88 0.00 1.68 1.13 4.04 90.26 18:19:01 1 4.37 0.00 2.46 2.00 3.87 87.29 18:19:01 2 2.89 0.00 1.82 0.69 3.90 90.69 18:19:01 3 4.44 0.00 2.25 0.85 3.51 88.95 Average: all 1.16 0.00 0.71 0.31 1.58 96.24 Average: 0 1.11 0.00 0.71 0.25 1.60 96.34 Average: 1 1.15 0.00 0.76 0.44 1.71 95.94 Average: 2 1.17 0.00 0.63 0.17 1.62 96.41 Average: 3 1.21 0.00 0.74 0.37 1.40 96.28