---> uname -a: Linux 8b3ca474650b 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 665 120 0 1050 1066 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) 08/27/20 _x86_64_ (4 CPU) 16:38:50 LINUX RESTART 16:40:01 tps rtps wtps bread/s bwrtn/s 16:41:01 3.56 0.00 3.56 0.00 99.12 16:42:01 0.37 0.00 0.37 0.00 5.46 16:43:01 0.28 0.00 0.28 0.00 2.88 16:44:01 0.30 0.00 0.30 0.00 3.86 Average: 1.13 0.00 1.13 0.00 27.84 16:40:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:41:01 171648 1709908 90.88 2620 1134036 1091504 37.25 432564 1116876 20 16:42:01 170180 1711376 90.96 2620 1134040 1082468 36.94 435424 1115984 16 16:43:01 171252 1710304 90.90 2620 1134048 1082252 36.94 434276 1115988 12 16:44:01 167884 1713672 91.08 2620 1134048 1082444 36.94 444904 1108724 8 Average: 170241 1711315 90.95 2620 1134043 1084667 37.02 436792 1114393 14 16:40:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 16:41:01 eth0 0.65 0.13 0.04 0.04 0.00 0.00 0.00 16:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:42:01 eth0 3.86 3.05 3.18 0.32 0.00 0.00 0.00 16:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:43:01 eth0 0.60 0.10 0.06 0.07 0.00 0.00 0.00 16:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:44:01 eth0 0.47 0.43 0.27 0.21 0.00 0.00 0.00 16:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 1.39 0.93 0.89 0.16 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 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) 08/27/20 _x86_64_ (4 CPU) 16:38:50 LINUX RESTART 16:40:01 CPU %user %nice %system %iowait %steal %idle 16:41:01 all 0.21 0.00 0.06 0.00 0.00 99.73 16:41:01 0 0.55 0.00 0.05 0.00 0.00 99.40 16:41:01 1 0.15 0.00 0.08 0.00 0.00 99.77 16:41:01 2 0.07 0.00 0.03 0.00 0.02 99.88 16:41:01 3 0.07 0.00 0.07 0.00 0.00 99.87 16:42:01 all 0.13 0.00 0.05 0.00 0.00 99.82 16:42:01 0 0.08 0.00 0.03 0.00 0.00 99.88 16:42:01 1 0.10 0.00 0.05 0.00 0.02 99.83 16:42:01 2 0.30 0.00 0.05 0.00 0.00 99.65 16:42:01 3 0.05 0.00 0.03 0.00 0.00 99.92 16:43:01 all 0.10 0.00 0.03 0.00 0.00 99.87 16:43:01 0 0.02 0.00 0.03 0.00 0.02 99.93 16:43:01 1 0.05 0.00 0.05 0.00 0.00 99.90 16:43:01 2 0.28 0.00 0.02 0.00 0.00 99.70 16:43:01 3 0.03 0.00 0.03 0.00 0.00 99.93 16:44:01 all 0.16 0.00 0.05 0.00 0.00 99.79 16:44:01 0 0.03 0.00 0.05 0.00 0.00 99.92 16:44:01 1 0.05 0.00 0.05 0.00 0.00 99.90 16:44:01 2 0.53 0.00 0.07 0.00 0.00 99.40 16:44:01 3 0.02 0.00 0.02 0.00 0.00 99.97 Average: all 0.15 0.00 0.05 0.00 0.00 99.80 Average: 0 0.17 0.00 0.04 0.00 0.00 99.78 Average: 1 0.09 0.00 0.06 0.00 0.00 99.85 Average: 2 0.30 0.00 0.04 0.00 0.00 99.66 Average: 3 0.04 0.00 0.04 0.00 0.00 99.92