---> uname -a: Linux a4faff96a706 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: 2933.442 BogoMIPS: 5866.88 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-273 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-273@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 652 121 0 1064 1079 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) 08/26/20 _x86_64_ (4 CPU) 14:06:21 LINUX RESTART 14:07:01 tps rtps wtps bread/s bwrtn/s 14:08:01 55.79 15.08 40.71 4957.52 4758.74 14:09:01 1.70 0.00 1.70 0.00 34.59 14:10:01 0.37 0.00 0.37 0.00 5.69 14:11:01 0.25 0.00 0.25 0.00 3.73 14:12:01 135.92 89.43 46.49 6902.94 16730.22 Average: 38.98 21.01 17.98 2382.55 4327.10 14:07:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 14:08:01 164944 1716612 91.23 2620 1144352 1107176 37.79 411120 1145300 124 14:09:01 168288 1713268 91.06 2620 1144356 1088064 37.13 411216 1142108 8 14:10:01 168152 1713404 91.06 2620 1144364 1082076 36.93 412032 1141780 8 14:11:01 167208 1714348 91.11 2620 1144364 1082116 36.93 413568 1141224 8 14:12:01 96204 1785352 94.89 2620 1127156 1280220 43.69 466136 1109640 33888 Average: 152959 1728597 91.87 2620 1140918 1127930 38.49 422814 1136010 6807 14:07:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 14:08:01 eth0 269.26 174.78 697.94 77.32 0.00 0.00 0.00 14:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:08:01 docker0 3.56 2.83 0.83 10.03 0.00 0.00 0.00 14:09:01 eth0 2.45 0.68 2.03 0.05 0.00 0.00 0.00 14:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:10:01 eth0 1.10 0.58 0.37 0.22 0.00 0.00 0.00 14:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:11:01 eth0 0.52 0.42 0.27 0.21 0.00 0.00 0.00 14:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:12:01 eth0 113.11 75.28 2330.98 12.35 0.00 0.00 0.00 14:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 77.58 50.54 609.20 18.09 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.71 0.57 0.17 2.01 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) 08/26/20 _x86_64_ (4 CPU) 14:06:21 LINUX RESTART 14:07:01 CPU %user %nice %system %iowait %steal %idle 14:08:01 all 5.96 0.00 2.32 1.73 0.00 89.98 14:08:01 0 6.11 0.00 2.56 2.48 0.00 88.85 14:08:01 1 4.58 0.00 2.74 0.30 0.00 92.37 14:08:01 2 6.96 0.00 2.21 2.81 0.00 88.02 14:08:01 3 6.16 0.00 1.79 1.34 0.00 90.71 14:09:01 all 0.17 0.00 0.05 0.00 0.00 99.79 14:09:01 0 0.05 0.00 0.03 0.00 0.00 99.92 14:09:01 1 0.03 0.00 0.02 0.00 0.00 99.95 14:09:01 2 0.55 0.00 0.07 0.00 0.02 99.37 14:09:01 3 0.07 0.00 0.05 0.00 0.00 99.88 14:10:01 all 0.17 0.00 0.03 0.00 0.00 99.79 14:10:01 0 0.05 0.00 0.03 0.00 0.00 99.92 14:10:01 1 0.07 0.00 0.05 0.00 0.00 99.88 14:10:01 2 0.54 0.00 0.03 0.00 0.00 99.42 14:10:01 3 0.02 0.00 0.03 0.00 0.00 99.95 14:11:01 all 0.12 0.00 0.03 0.00 0.00 99.85 14:11:01 0 0.02 0.00 0.03 0.00 0.00 99.95 14:11:01 1 0.02 0.00 0.03 0.00 0.00 99.95 14:11:01 2 0.43 0.00 0.03 0.00 0.00 99.53 14:11:01 3 0.02 0.00 0.02 0.00 0.00 99.97 14:12:01 all 5.13 0.00 2.84 1.78 0.01 90.24 14:12:01 0 4.90 0.00 2.89 1.74 0.00 90.47 14:12:01 1 5.16 0.00 2.30 0.90 0.03 91.60 14:12:01 2 6.14 0.00 2.81 2.91 0.02 88.12 14:12:01 3 4.35 0.00 3.31 1.57 0.02 90.74 Average: all 2.31 0.00 1.05 0.70 0.00 95.93 Average: 0 2.23 0.00 1.11 0.84 0.00 95.82 Average: 1 1.98 0.00 1.03 0.24 0.01 96.75 Average: 2 2.93 0.00 1.03 1.15 0.01 94.89 Average: 3 2.12 0.00 1.04 0.58 0.00 96.25