---> uname -a: Linux d5eb60a63960 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-264 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-264@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 658 129 0 1049 1072 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) 08/07/20 _x86_64_ (4 CPU) 11:10:23 LINUX RESTART 11:11:01 tps rtps wtps bread/s bwrtn/s 11:12:01 63.28 15.62 47.66 5053.27 4964.70 11:13:01 1.68 0.00 1.68 0.00 32.52 11:14:01 40.23 39.88 0.35 3994.54 6.14 Average: 35.07 18.50 16.57 3016.67 1668.79 11:11:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:12:01 156712 1724844 91.67 2620 1142260 1105080 37.71 437300 1127420 120 11:13:01 160744 1720812 91.46 2620 1142264 1082020 36.93 435736 1125612 20 11:14:01 77616 1803940 95.87 2620 1203416 1117984 38.15 454656 1190672 16 Average: 131691 1749865 93.00 2620 1162647 1101695 37.60 442564 1147901 52 11:11:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 11:12:01 eth0 181.87 167.14 1015.94 89.66 0.00 0.00 0.00 11:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:12:01 docker0 4.39 3.53 0.85 9.87 0.00 0.00 0.00 11:13:01 eth0 1.05 0.15 0.09 0.03 0.00 0.00 0.00 11:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:14:01 eth0 5.78 3.31 5.04 2.10 0.00 0.00 0.00 11:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 62.93 56.90 340.56 30.62 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.46 1.18 0.28 3.29 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) 08/07/20 _x86_64_ (4 CPU) 11:10:23 LINUX RESTART 11:11:01 CPU %user %nice %system %iowait %steal %idle 11:12:01 all 10.64 0.00 3.50 2.26 0.08 83.52 11:12:01 0 10.27 0.00 4.21 1.97 0.07 83.49 11:12:01 1 9.98 0.00 3.36 0.79 0.07 85.81 11:12:01 2 11.39 0.00 2.55 1.65 0.07 84.34 11:12:01 3 10.90 0.00 3.90 4.64 0.10 80.46 11:13:01 all 0.14 0.00 0.04 0.00 0.00 99.82 11:13:01 0 0.05 0.00 0.02 0.00 0.00 99.93 11:13:01 1 0.05 0.00 0.07 0.00 0.02 99.87 11:13:01 2 0.03 0.00 0.03 0.00 0.02 99.92 11:13:01 3 0.43 0.00 0.03 0.00 0.00 99.53 11:14:01 all 0.63 0.00 0.20 0.80 0.01 98.36 11:14:01 0 0.42 0.00 0.15 0.08 0.02 99.33 11:14:01 1 0.40 0.00 0.18 0.05 0.02 99.35 11:14:01 2 1.19 0.00 0.43 3.04 0.00 95.34 11:14:01 3 0.53 0.00 0.05 0.00 0.02 99.40 Average: all 3.78 0.00 1.24 1.02 0.03 93.93 Average: 0 3.56 0.00 1.45 0.68 0.03 94.29 Average: 1 3.46 0.00 1.20 0.28 0.03 95.03 Average: 2 4.19 0.00 1.00 1.56 0.03 93.22 Average: 3 3.94 0.00 1.32 1.54 0.04 93.16