---> uname -a: Linux 1d6ef48c9a86 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% /w/workspace/dry_go-mod-core-contracts_PR-236@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-236 ---> free -m: total used free shared buff/cache available Mem: 1837 654 116 0 1066 1077 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) 06/24/20 _x86_64_ (4 CPU) 04:11:13 LINUX RESTART 04:12:01 tps rtps wtps bread/s bwrtn/s 04:13:01 27.73 9.14 18.59 4315.50 2185.23 04:14:01 1.42 0.00 1.42 0.00 26.12 04:15:01 0.30 0.00 0.30 0.00 4.71 04:16:01 0.23 0.00 0.23 0.00 3.05 Average: 7.42 2.29 5.14 1079.19 554.94 04:12:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:13:01 158904 1722652 91.55 2620 1144636 1127572 38.48 434576 1126860 16 04:14:01 166684 1714872 91.14 2620 1144640 1082696 36.95 432144 1122204 20 04:15:01 166492 1715064 91.15 2620 1144648 1082952 36.96 433360 1122204 20 04:16:01 165316 1716240 91.21 2620 1144648 1082760 36.95 436416 1119740 20 Average: 164349 1717207 91.27 2620 1144643 1093995 37.34 434124 1122752 19 04:12:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 04:13:01 eth0 55.45 41.97 342.26 37.86 0.00 0.00 0.00 04:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:13:01 docker0 3.70 2.70 0.76 9.21 0.00 0.00 0.00 04:14:01 eth0 0.75 0.07 0.06 0.01 0.00 0.00 0.00 04:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:15:01 eth0 1.37 0.72 0.58 0.37 0.00 0.00 0.00 04:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:16:01 eth0 0.10 0.08 0.01 0.04 0.00 0.00 0.00 04:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 14.42 10.71 85.75 9.57 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.92 0.67 0.19 2.30 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) 06/24/20 _x86_64_ (4 CPU) 04:11:13 LINUX RESTART 04:12:01 CPU %user %nice %system %iowait %steal %idle 04:13:01 all 2.83 0.00 1.38 0.86 0.00 94.92 04:13:01 0 2.84 0.00 1.46 0.62 0.00 95.08 04:13:01 1 2.14 0.00 1.17 2.33 0.00 94.36 04:13:01 2 2.80 0.00 1.40 0.43 0.00 95.36 04:13:01 3 3.53 0.00 1.45 0.07 0.02 94.94 04:14:01 all 0.16 0.00 0.05 0.00 0.00 99.79 04:14:01 0 0.03 0.00 0.07 0.00 0.00 99.90 04:14:01 1 0.07 0.00 0.07 0.00 0.00 99.87 04:14:01 2 0.53 0.00 0.05 0.00 0.00 99.42 04:14:01 3 0.02 0.00 0.03 0.00 0.00 99.95 04:15:01 all 0.17 0.00 0.05 0.00 0.00 99.79 04:15:01 0 0.12 0.00 0.08 0.00 0.00 99.80 04:15:01 1 0.05 0.00 0.03 0.00 0.00 99.92 04:15:01 2 0.47 0.00 0.05 0.00 0.00 99.48 04:15:01 3 0.03 0.00 0.03 0.00 0.00 99.93 04:16:01 all 0.14 0.00 0.03 0.00 0.00 99.83 04:16:01 0 0.02 0.00 0.02 0.00 0.00 99.97 04:16:01 1 0.02 0.00 0.05 0.00 0.00 99.93 04:16:01 2 0.48 0.00 0.05 0.00 0.00 99.47 04:16:01 3 0.03 0.00 0.02 0.00 0.00 99.95 Average: all 0.82 0.00 0.38 0.21 0.00 98.58 Average: 0 0.75 0.00 0.40 0.15 0.00 98.69 Average: 1 0.57 0.00 0.33 0.58 0.00 98.52 Average: 2 1.07 0.00 0.39 0.11 0.00 98.43 Average: 3 0.90 0.00 0.38 0.02 0.00 98.70