---> uname -a: Linux 176f228cec49 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-255 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-255@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 628 122 0 1087 1104 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) 07/17/20 _x86_64_ (4 CPU) 02:04:58 LINUX RESTART 02:06:01 tps rtps wtps bread/s bwrtn/s 02:07:01 32.82 10.51 22.31 4341.47 2079.71 02:08:01 0.37 0.00 0.37 0.00 6.29 02:09:02 0.23 0.00 0.23 0.00 3.24 02:10:01 0.22 0.00 0.22 0.00 2.45 Average: 8.45 2.64 5.81 1089.94 525.12 02:06:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:07:01 174804 1706752 90.71 2620 1155592 1139832 38.90 393600 1152312 24 02:08:01 186240 1695316 90.10 2620 1155596 1063076 36.28 387840 1147840 8 02:09:02 185208 1696348 90.16 2620 1155660 1063584 36.30 389328 1147856 24 02:10:01 185560 1695996 90.14 2620 1155604 1063332 36.29 393740 1143156 8 Average: 182953 1698603 90.28 2620 1155613 1082456 36.94 391127 1147791 16 02:06:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:07:01 eth0 71.33 46.87 451.02 43.61 0.00 0.00 0.00 02:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:07:01 docker0 4.97 3.53 0.84 9.11 0.00 0.00 0.00 02:08:01 eth0 0.62 0.08 0.06 0.01 0.00 0.00 0.00 02:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:09:02 eth0 1.33 0.66 0.57 0.34 0.00 0.00 0.00 02:09:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:09:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:10:01 eth0 0.10 0.10 0.01 0.07 0.00 0.00 0.00 02:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 18.42 11.98 113.39 11.05 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.25 0.88 0.21 2.29 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) 07/17/20 _x86_64_ (4 CPU) 02:04:58 LINUX RESTART 02:06:01 CPU %user %nice %system %iowait %steal %idle 02:07:01 all 3.19 0.00 1.64 0.85 3.59 90.74 02:07:01 0 3.03 0.00 1.63 1.13 3.91 90.30 02:07:01 1 2.74 0.00 1.37 1.07 3.79 91.02 02:07:01 2 3.62 0.00 1.69 0.60 3.59 90.50 02:07:01 3 3.36 0.00 1.84 0.60 3.07 91.13 02:08:01 all 0.13 0.00 0.05 0.00 0.19 99.63 02:08:01 0 0.03 0.00 0.05 0.00 0.25 99.67 02:08:01 1 0.40 0.00 0.03 0.00 0.27 99.30 02:08:01 2 0.08 0.00 0.07 0.00 0.17 99.68 02:08:01 3 0.02 0.00 0.03 0.00 0.08 99.87 02:09:02 all 0.18 0.00 0.02 0.00 0.43 99.37 02:09:02 0 0.10 0.00 0.03 0.00 0.23 99.63 02:09:02 1 0.45 0.00 0.02 0.00 0.45 99.09 02:09:02 2 0.07 0.00 0.02 0.00 0.53 99.39 02:09:02 3 0.10 0.00 0.03 0.00 0.48 99.39 02:10:01 all 0.09 0.00 0.04 0.00 0.41 99.46 02:10:01 0 0.03 0.00 0.05 0.00 0.25 99.66 02:10:01 1 0.27 0.00 0.03 0.00 0.52 99.17 02:10:01 2 0.05 0.00 0.05 0.00 0.37 99.53 02:10:01 3 0.02 0.00 0.03 0.00 0.49 99.46 Average: all 0.90 0.00 0.44 0.21 1.16 97.29 Average: 0 0.80 0.00 0.44 0.28 1.16 97.31 Average: 1 0.97 0.00 0.37 0.27 1.26 97.13 Average: 2 0.96 0.00 0.46 0.15 1.17 97.26 Average: 3 0.87 0.00 0.48 0.15 1.03 97.46