---> uname -a: Linux 0e9e753cd774 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% /w/workspace/dry_go-mod-core-contracts_PR-253@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-253 ---> free -m: total used free shared buff/cache available Mem: 1837 671 116 0 1049 1060 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) 07/14/20 _x86_64_ (4 CPU) 03:21:09 LINUX RESTART 03:22:01 tps rtps wtps bread/s bwrtn/s 03:23:01 30.39 10.60 19.79 4413.05 2441.69 03:24:01 1.53 0.00 1.53 0.00 28.74 03:25:01 0.28 0.00 0.28 0.00 3.76 03:26:01 0.25 0.00 0.25 0.00 2.56 03:27:02 0.15 0.00 0.15 0.00 1.95 03:28:01 0.39 0.00 0.39 0.00 5.12 Average: 5.52 1.77 3.74 737.90 415.30 03:22:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:23:01 159016 1722540 91.55 2620 1128380 1119760 38.22 452252 1110528 16 03:24:01 165040 1716516 91.23 2620 1128384 1081396 36.91 450992 1107104 12 03:25:01 163708 1717848 91.30 2620 1128392 1081668 36.92 452204 1107104 8 03:26:01 163220 1718336 91.33 2620 1128392 1081628 36.91 457956 1102312 12 03:27:02 163620 1717936 91.30 2620 1128396 1081548 36.91 473836 1085972 12 03:28:01 164196 1717360 91.27 2620 1128404 1081464 36.91 473384 1085972 8 Average: 163133 1718423 91.33 2620 1128391 1087911 37.13 460104 1099832 11 03:22:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:23:01 eth0 107.39 66.94 453.05 45.39 0.00 0.00 0.00 03:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:23:01 docker0 3.43 2.83 0.76 9.07 0.00 0.00 0.00 03:24:01 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 03:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:25:01 eth0 1.23 0.45 0.33 0.21 0.00 0.00 0.00 03:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:26:01 eth0 0.77 0.22 0.31 0.16 0.00 0.00 0.00 03:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:27:02 eth0 0.23 0.17 0.08 0.10 0.00 0.00 0.00 03:27:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:27:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:28:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 03:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 18.37 11.36 75.88 7.67 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.57 0.47 0.13 1.52 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) 07/14/20 _x86_64_ (4 CPU) 03:21:09 LINUX RESTART 03:22:01 CPU %user %nice %system %iowait %steal %idle 03:23:01 all 3.34 0.00 1.79 0.66 0.08 94.13 03:23:01 0 3.00 0.00 1.98 0.18 0.07 94.78 03:23:01 1 2.88 0.00 1.54 1.62 0.08 93.88 03:23:01 2 3.50 0.00 2.03 0.03 0.08 94.36 03:23:01 3 4.00 0.00 1.61 0.77 0.08 93.53 03:24:01 all 0.15 0.00 0.05 0.00 0.02 99.78 03:24:01 0 0.03 0.00 0.03 0.00 0.00 99.93 03:24:01 1 0.03 0.00 0.05 0.00 0.02 99.90 03:24:01 2 0.07 0.00 0.07 0.00 0.03 99.83 03:24:01 3 0.47 0.00 0.03 0.00 0.02 99.48 03:25:01 all 0.15 0.00 0.03 0.00 0.00 99.81 03:25:01 0 0.05 0.00 0.03 0.00 0.00 99.92 03:25:01 1 0.08 0.00 0.07 0.00 0.00 99.85 03:25:01 2 0.03 0.00 0.02 0.00 0.02 99.93 03:25:01 3 0.47 0.00 0.03 0.00 0.00 99.50 03:26:01 all 0.15 0.00 0.03 0.00 0.00 99.81 03:26:01 0 0.03 0.00 0.03 0.00 0.00 99.93 03:26:01 1 0.52 0.00 0.02 0.00 0.00 99.47 03:26:01 2 0.03 0.00 0.05 0.00 0.00 99.92 03:26:01 3 0.02 0.00 0.03 0.00 0.00 99.95 03:27:02 all 0.16 0.00 0.05 0.00 0.01 99.78 03:27:02 0 0.03 0.00 0.02 0.00 0.00 99.95 03:27:02 1 0.52 0.00 0.03 0.00 0.02 99.43 03:27:02 2 0.08 0.00 0.03 0.00 0.02 99.87 03:27:02 3 0.03 0.00 0.08 0.00 0.00 99.88 03:28:01 all 0.11 0.00 0.03 0.00 0.00 99.85 03:28:01 0 0.00 0.00 0.02 0.00 0.00 99.98 03:28:01 1 0.27 0.00 0.02 0.00 0.00 99.71 03:28:01 2 0.03 0.00 0.05 0.00 0.00 99.92 03:28:01 3 0.15 0.00 0.05 0.00 0.00 99.80 Average: all 0.68 0.00 0.33 0.11 0.02 98.86 Average: 0 0.52 0.00 0.35 0.03 0.01 99.08 Average: 1 0.72 0.00 0.29 0.27 0.02 98.71 Average: 2 0.62 0.00 0.37 0.01 0.03 98.97 Average: 3 0.86 0.00 0.31 0.13 0.02 98.69