---> uname -a: Linux 8de7127f3663 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% /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 647 130 0 1059 1084 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) 08/11/20 _x86_64_ (4 CPU) 01:35:49 LINUX RESTART 01:37:01 tps rtps wtps bread/s bwrtn/s 01:38:01 3.06 0.00 3.06 0.00 107.71 01:39:01 0.38 0.00 0.38 0.00 5.01 01:40:01 0.32 0.00 0.32 0.00 4.06 01:41:01 0.23 0.00 0.23 0.00 2.70 01:42:01 0.23 0.00 0.23 0.00 3.36 Average: 0.85 0.00 0.85 0.00 24.58 01:37:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:38:01 161784 1719772 91.40 2620 1150728 1110792 37.91 417240 1141444 12 01:39:01 169364 1712192 91.00 2620 1150732 1073124 36.62 414408 1137804 8 01:40:01 168484 1713072 91.05 2620 1150740 1073356 36.63 415352 1137804 8 01:41:01 167544 1714012 91.10 2620 1150740 1073356 36.63 422140 1132132 8 01:42:01 167752 1713804 91.08 2620 1150748 1073272 36.63 422176 1131900 16 Average: 166986 1714570 91.13 2620 1150738 1080780 36.89 418263 1136217 10 01:37:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 01:38:01 eth0 10.12 5.03 8.87 0.54 0.00 0.00 0.00 01:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:39:01 eth0 0.88 0.08 0.08 0.01 0.00 0.00 0.00 01:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:40:01 eth0 1.78 0.60 0.61 0.40 0.00 0.00 0.00 01:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:41:01 eth0 0.57 0.30 0.27 0.20 0.00 0.00 0.00 01:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:42:01 eth0 0.37 0.27 0.17 0.08 0.00 0.00 0.00 01:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.74 1.26 2.00 0.24 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) 08/11/20 _x86_64_ (4 CPU) 01:35:49 LINUX RESTART 01:37:01 CPU %user %nice %system %iowait %steal %idle 01:38:01 all 0.30 0.00 0.07 0.00 0.00 99.63 01:38:01 0 0.15 0.00 0.08 0.00 0.00 99.77 01:38:01 1 0.22 0.00 0.05 0.00 0.00 99.73 01:38:01 2 0.48 0.00 0.07 0.00 0.00 99.45 01:38:01 3 0.35 0.00 0.10 0.00 0.02 99.53 01:39:01 all 0.17 0.00 0.04 0.00 0.00 99.79 01:39:01 0 0.02 0.00 0.05 0.00 0.00 99.93 01:39:01 1 0.05 0.00 0.03 0.00 0.00 99.92 01:39:01 2 0.55 0.00 0.05 0.00 0.00 99.40 01:39:01 3 0.05 0.00 0.03 0.00 0.00 99.92 01:40:01 all 0.14 0.00 0.04 0.00 0.00 99.82 01:40:01 0 0.03 0.00 0.02 0.00 0.00 99.95 01:40:01 1 0.05 0.00 0.05 0.00 0.02 99.88 01:40:01 2 0.43 0.00 0.05 0.00 0.00 99.52 01:40:01 3 0.03 0.00 0.03 0.00 0.00 99.93 01:41:01 all 0.15 0.00 0.05 0.00 0.00 99.80 01:41:01 0 0.02 0.00 0.03 0.00 0.00 99.95 01:41:01 1 0.03 0.00 0.07 0.00 0.00 99.90 01:41:01 2 0.52 0.00 0.03 0.00 0.00 99.45 01:41:01 3 0.03 0.00 0.05 0.00 0.00 99.92 01:42:01 all 0.15 0.00 0.07 0.00 0.00 99.78 01:42:01 0 0.02 0.00 0.02 0.00 0.00 99.97 01:42:01 1 0.05 0.00 0.07 0.00 0.00 99.88 01:42:01 2 0.53 0.00 0.05 0.00 0.00 99.42 01:42:01 3 0.02 0.00 0.15 0.00 0.00 99.83 Average: all 0.18 0.00 0.05 0.00 0.00 99.76 Average: 0 0.05 0.00 0.04 0.00 0.00 99.91 Average: 1 0.08 0.00 0.05 0.00 0.00 99.86 Average: 2 0.50 0.00 0.05 0.00 0.00 99.45 Average: 3 0.10 0.00 0.07 0.00 0.00 99.83