---> uname -a: Linux f227dc586b69 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: 2933.396 BogoMIPS: 5866.79 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-264@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-264 ---> free -m: total used free shared buff/cache available Mem: 1837 665 124 0 1047 1066 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) 08/07/20 _x86_64_ (4 CPU) 11:14:00 LINUX RESTART 11:15:01 tps rtps wtps bread/s bwrtn/s 11:16:01 23.61 5.04 18.56 1144.19 2405.79 11:17:01 0.30 0.00 0.30 0.00 4.60 11:18:01 0.20 0.00 0.20 0.00 2.33 11:19:01 0.30 0.00 0.30 0.00 3.76 Average: 6.10 1.26 4.84 286.08 604.20 11:15:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:16:01 151584 1729972 91.94 2620 1140748 1132624 38.65 429108 1140336 20 11:17:01 158200 1723356 91.59 2620 1140752 1082772 36.95 428404 1136008 16 11:18:01 156940 1724616 91.66 2620 1140760 1082976 36.96 429420 1136012 20 11:19:01 157404 1724152 91.63 2620 1140760 1082700 36.95 430956 1134200 20 Average: 156032 1725524 91.71 2620 1140755 1095268 37.38 429472 1136639 19 11:15:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 11:16:01 eth0 37.36 30.14 35.34 39.18 0.00 0.00 0.00 11:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:16:01 docker0 3.63 2.63 0.79 9.70 0.00 0.00 0.00 11:17:01 eth0 2.98 1.00 2.08 0.07 0.00 0.00 0.00 11:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:18:01 eth0 1.05 0.58 0.55 0.39 0.00 0.00 0.00 11:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:19:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 11:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 10.37 7.95 9.50 9.91 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.91 0.66 0.20 2.43 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) 08/07/20 _x86_64_ (4 CPU) 11:14:00 LINUX RESTART 11:15:01 CPU %user %nice %system %iowait %steal %idle 11:16:01 all 2.09 0.00 1.28 0.59 0.05 95.99 11:16:01 0 1.95 0.00 1.49 0.23 0.03 96.29 11:16:01 1 2.14 0.00 0.99 0.00 0.05 96.83 11:16:01 2 2.06 0.00 1.37 0.70 0.03 95.84 11:16:01 3 2.21 0.00 1.27 1.40 0.08 95.03 11:17:01 all 0.16 0.00 0.05 0.00 0.02 99.78 11:17:01 0 0.03 0.00 0.02 0.00 0.02 99.93 11:17:01 1 0.07 0.00 0.05 0.00 0.02 99.87 11:17:01 2 0.05 0.00 0.05 0.00 0.02 99.88 11:17:01 3 0.48 0.00 0.07 0.00 0.05 99.40 11:18:01 all 0.17 0.00 0.03 0.00 0.01 99.78 11:18:01 0 0.03 0.00 0.03 0.00 0.02 99.92 11:18:01 1 0.05 0.00 0.03 0.00 0.02 99.90 11:18:01 2 0.05 0.00 0.03 0.00 0.02 99.90 11:18:01 3 0.55 0.00 0.03 0.00 0.00 99.42 11:19:01 all 0.16 0.00 0.04 0.00 0.00 99.80 11:19:01 0 0.02 0.00 0.03 0.00 0.00 99.95 11:19:01 1 0.05 0.00 0.05 0.00 0.00 99.90 11:19:01 2 0.07 0.00 0.07 0.00 0.00 99.87 11:19:01 3 0.53 0.00 0.02 0.00 0.00 99.45 Average: all 0.64 0.00 0.35 0.15 0.02 98.84 Average: 0 0.51 0.00 0.39 0.06 0.02 99.02 Average: 1 0.58 0.00 0.28 0.00 0.02 99.12 Average: 2 0.55 0.00 0.38 0.18 0.02 98.87 Average: 3 0.94 0.00 0.35 0.35 0.03 98.33