---> uname -a: Linux d55968748c06 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 8.5G 41.5G 17% / 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 8.5G 41.5G 17% /etc/resolv.conf /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hostname /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hosts /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/dry_go-mod-core-contracts_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/dry_go-mod-core-contracts_master@tmp /dev/vda1 50.0G 8.5G 41.5G 17% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 772 100 0 964 995 Swap: 1023 2 1021 ---> 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 16: eth0@if17: 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) 08/04/20 _x86_64_ (4 CPU) 14:06:12 LINUX RESTART 14:07:01 tps rtps wtps bread/s bwrtn/s 14:08:01 31.26 12.19 19.08 4531.38 2407.16 14:09:01 1.65 0.00 1.65 0.00 31.37 14:10:01 0.15 0.00 0.15 0.00 1.88 14:11:01 242.24 160.14 82.10 6931.73 32252.03 14:12:01 255.23 120.44 134.80 8423.50 32679.71 Average: 106.13 58.56 47.57 3978.18 13477.33 14:07:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 14:08:01 180224 1701332 90.42 2620 1135864 1104860 37.71 430228 1111508 20 14:09:01 184980 1696576 90.17 2620 1135868 1071568 36.57 429440 1108396 12 14:10:01 184096 1697460 90.22 2620 1135876 1071784 36.58 430792 1108396 16 14:11:01 161648 1719908 91.41 2620 1071180 1386804 47.33 544404 976132 68 14:12:01 105952 1775604 94.37 1512 1047080 1093748 37.33 607472 888364 172 Average: 163380 1718176 91.32 2398 1105174 1145753 39.10 488467 1038559 58 14:07:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 14:08:01 eth0 63.48 47.38 354.98 36.39 0.00 0.00 0.00 14:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:08:01 docker0 3.95 2.75 0.80 9.06 0.00 0.00 0.00 14:09:01 eth0 0.60 0.08 0.06 0.01 0.00 0.00 0.00 14:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:10:01 eth0 4.31 1.97 3.45 0.48 0.00 0.00 0.00 14:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:11:01 veth86fd1de 0.00 0.10 0.00 0.01 0.00 0.00 0.00 14:11:01 eth0 694.22 405.01 5015.83 117.06 0.00 0.00 0.00 14:11:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 14:11:01 docker0 16.55 14.55 1.83 128.26 0.00 0.00 0.00 14:12:01 eth0 272.79 187.22 3419.77 86.13 0.00 0.00 0.00 14:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:12:01 docker0 50.64 84.96 3.01 188.94 0.00 0.00 0.00 Average: eth0 103.08 71.05 1538.66 28.55 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 13.44 19.91 0.97 63.46 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) 08/04/20 _x86_64_ (4 CPU) 14:06:12 LINUX RESTART 14:07:01 CPU %user %nice %system %iowait %steal %idle 14:08:01 all 2.78 0.00 1.47 0.61 0.01 95.13 14:08:01 0 3.06 0.00 1.69 0.38 0.00 94.87 14:08:01 1 2.69 0.00 1.42 0.75 0.00 95.14 14:08:01 2 2.57 0.00 1.37 0.28 0.00 95.78 14:08:01 3 2.78 0.00 1.37 1.00 0.00 94.85 14:09:01 all 0.16 0.00 0.04 0.00 0.00 99.80 14:09:01 0 0.53 0.00 0.05 0.00 0.00 99.42 14:09:01 1 0.02 0.00 0.05 0.00 0.00 99.93 14:09:01 2 0.03 0.00 0.03 0.00 0.00 99.93 14:09:01 3 0.05 0.00 0.05 0.00 0.00 99.90 14:10:01 all 0.12 0.00 0.05 0.00 0.00 99.83 14:10:01 0 0.28 0.00 0.07 0.00 0.00 99.65 14:10:01 1 0.08 0.00 0.03 0.00 0.00 99.88 14:10:01 2 0.05 0.00 0.03 0.00 0.00 99.92 14:10:01 3 0.07 0.00 0.03 0.00 0.02 99.88 14:11:01 all 7.88 0.00 4.44 2.07 0.03 85.59 14:11:01 0 7.55 0.00 4.36 1.38 0.02 86.69 14:11:01 1 7.51 0.00 4.58 2.32 0.02 85.58 14:11:01 2 7.43 0.00 4.33 3.79 0.03 84.41 14:11:01 3 9.03 0.00 4.49 0.78 0.03 85.67 14:12:01 all 10.89 0.00 7.21 3.98 0.04 77.87 14:12:01 0 10.35 0.00 7.96 2.96 0.03 78.70 14:12:01 1 8.54 0.00 6.02 3.16 0.03 82.24 14:12:01 2 10.98 0.00 7.25 5.19 0.03 76.54 14:12:01 3 13.72 0.00 7.60 4.64 0.07 73.98 Average: all 4.34 0.00 2.62 1.32 0.02 91.70 Average: 0 4.33 0.00 2.81 0.94 0.01 91.91 Average: 1 3.75 0.00 2.41 1.24 0.01 92.60 Average: 2 4.19 0.00 2.59 1.84 0.01 91.37 Average: 3 5.10 0.00 2.69 1.28 0.02 90.91