---> uname -a: Linux 55942f0bb8ee 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% /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 629 117 0 1090 1102 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) 07/21/20 _x86_64_ (4 CPU) 07:44:56 LINUX RESTART 07:46:01 tps rtps wtps bread/s bwrtn/s 07:47:01 50.67 13.23 37.44 4806.92 4740.19 07:48:01 1.65 0.00 1.65 0.00 32.83 07:49:02 0.25 0.00 0.25 0.00 3.16 07:50:01 0.22 0.00 0.22 0.00 2.18 07:51:01 79.31 61.57 17.73 4679.24 7786.40 Average: 26.53 15.03 11.50 1904.84 2523.70 07:46:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:47:01 169068 1712488 91.01 2620 1171852 1160212 39.60 385752 1164908 136 07:48:01 178560 1702996 90.51 2620 1171800 1090412 37.21 381436 1161328 20 07:49:02 177764 1703792 90.55 2620 1171808 1090660 37.22 382724 1161328 8 07:50:01 175644 1705912 90.66 2620 1171808 1090744 37.23 386408 1159236 8 07:51:01 75248 1806308 96.00 2620 1174172 1532880 52.31 503568 1124340 111288 Average: 155257 1726299 91.75 2620 1172288 1192982 40.71 407978 1154228 22292 07:46:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 07:47:01 eth0 105.94 75.44 487.26 54.68 0.00 0.00 0.00 07:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:47:01 docker0 4.01 3.13 0.79 9.20 0.00 0.00 0.00 07:48:01 eth0 0.73 0.08 0.06 0.01 0.00 0.00 0.00 07:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:49:02 eth0 1.02 0.52 0.32 0.22 0.00 0.00 0.00 07:49:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:49:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:50:01 eth0 0.85 0.44 0.29 0.21 0.00 0.00 0.00 07:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:51:01 eth0 81.50 50.45 2328.15 11.91 0.00 0.00 0.00 07:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 38.15 25.48 565.88 13.45 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.80 0.63 0.16 1.85 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) 07/21/20 _x86_64_ (4 CPU) 07:44:56 LINUX RESTART 07:46:01 CPU %user %nice %system %iowait %steal %idle 07:47:01 all 4.27 0.00 2.70 2.51 2.39 88.14 07:47:01 0 3.22 0.00 2.92 4.17 2.47 87.22 07:47:01 1 4.76 0.00 2.70 1.03 2.45 89.06 07:47:01 2 4.41 0.00 2.93 3.10 2.56 86.99 07:47:01 3 4.66 0.00 2.25 1.73 2.07 89.29 07:48:01 all 0.10 0.00 0.06 0.00 0.18 99.65 07:48:01 0 0.02 0.00 0.07 0.00 0.05 99.87 07:48:01 1 0.05 0.00 0.07 0.00 0.17 99.72 07:48:01 2 0.07 0.00 0.08 0.00 0.22 99.63 07:48:01 3 0.28 0.00 0.02 0.00 0.28 99.42 07:49:02 all 0.13 0.00 0.03 0.00 0.08 99.76 07:49:02 0 0.05 0.00 0.02 0.00 0.10 99.83 07:49:02 1 0.08 0.00 0.07 0.00 0.07 99.78 07:49:02 2 0.03 0.00 0.00 0.00 0.02 99.95 07:49:02 3 0.35 0.00 0.05 0.00 0.15 99.45 07:50:01 all 0.18 0.00 0.11 0.00 1.31 98.40 07:50:01 0 0.05 0.00 0.05 0.00 0.57 99.33 07:50:01 1 0.17 0.00 0.24 0.00 2.52 97.07 07:50:01 2 0.14 0.00 0.07 0.00 1.23 98.57 07:50:01 3 0.35 0.00 0.10 0.00 0.90 98.65 07:51:01 all 4.03 0.00 2.82 3.94 18.34 70.87 07:51:01 0 2.96 0.00 2.26 0.37 17.13 77.27 07:51:01 1 3.96 0.00 3.30 4.55 18.78 69.41 07:51:01 2 6.05 0.00 3.10 7.98 19.16 63.71 07:51:01 3 3.19 0.00 2.62 2.96 18.32 72.91 Average: all 1.77 0.00 1.16 1.32 4.65 91.10 Average: 0 1.28 0.00 1.08 0.89 4.28 92.48 Average: 1 1.83 0.00 1.30 1.16 4.98 90.74 Average: 2 2.17 0.00 1.25 2.27 4.79 89.51 Average: 3 1.78 0.00 1.03 0.97 4.55 91.67