---> uname -a: Linux 36a976c9d731 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 8.2G 41.8G 16% / 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 8.2G 41.8G 16% /etc/resolv.conf /dev/vda1 50.0G 8.2G 41.8G 16% /etc/hostname /dev/vda1 50.0G 8.2G 41.8G 16% /etc/hosts /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/dry_go-mod-core-contracts_master /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/dry_go-mod-core-contracts_master@tmp /dev/vda1 50.0G 8.2G 41.8G 16% /var/log/sa-host ---> free -m: total used free shared buff/cache available Mem: 1837 782 116 0 938 989 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) 09/09/20 _x86_64_ (4 CPU) 09:58:33 LINUX RESTART (4 CPU) 09:59:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 10:00:02 131.89 45.08 86.80 0.00 7572.37 35103.53 0.00 10:01:01 3.34 0.02 3.32 0.00 0.14 111.06 0.00 10:02:01 0.62 0.12 0.50 0.00 2.13 8.92 0.00 10:03:01 0.33 0.00 0.33 0.00 0.00 4.48 0.00 10:04:01 0.60 0.00 0.60 0.00 0.00 6.93 0.00 10:05:01 205.26 126.44 78.82 0.00 7108.11 32218.69 0.00 10:06:01 211.83 78.13 133.70 0.00 4676.32 32908.79 0.00 Average: 79.33 35.78 43.55 0.00 2773.02 14376.01 0.00 09:59:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:00:02 161908 0 585856 31.14 2620 1131172 1120252 38.23 429540 1129936 120 10:01:01 166304 0 581428 30.90 2620 1131204 1092532 37.29 429792 1126512 16 10:02:01 166936 0 580652 30.86 2620 1131348 1090568 37.22 430660 1125344 8 10:03:01 164216 0 583368 31.00 2620 1131352 1090816 37.23 433468 1124784 8 10:04:01 164452 0 583128 30.99 2620 1131356 1090864 37.23 439248 1119240 8 10:05:01 204108 0 631720 33.57 2596 1043132 1096060 37.41 504216 970524 16 10:06:01 199700 0 772096 41.03 1536 908224 1709176 58.33 645896 754528 60 Average: 175375 0 616893 32.79 2462 1086827 1184324 40.42 473260 1050124 34 09:59:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 10:00:02 eth0 467.95 262.69 1061.62 96.92 0.00 0.00 0.00 0.00 10:00:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:00:02 docker0 4.16 3.00 0.88 10.40 0.00 0.00 0.00 0.00 10:01:01 eth0 0.08 0.08 0.01 0.03 0.00 0.00 0.00 0.00 10:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:02:01 eth0 0.50 0.08 0.04 0.01 0.00 0.00 0.00 0.00 10:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:03:01 eth0 1.35 0.28 0.35 0.17 0.00 0.00 0.00 0.00 10:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:04:01 eth0 0.67 0.40 0.29 0.24 0.00 0.00 0.00 0.00 10:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:05:01 eth0 396.57 346.78 3909.41 31.52 0.00 0.00 0.00 0.00 10:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:05:01 docker0 16.96 17.63 1.30 121.62 0.00 0.00 0.00 0.00 10:06:01 eth0 469.58 407.16 3471.16 102.53 0.00 0.00 0.00 0.00 10:06:01 vethf8ce4b1 2.21 1.75 0.46 0.47 0.00 0.00 0.00 0.00 10:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:06:01 docker0 24.90 28.89 1.70 198.96 0.00 0.00 0.00 0.00 Average: eth0 191.47 145.75 1209.33 33.15 0.00 0.00 0.00 0.00 Average: vethf8ce4b1 0.32 0.25 0.07 0.07 0.00 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 6.59 7.09 0.56 47.41 0.00 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) 09/09/20 _x86_64_ (4 CPU) 09:58:33 LINUX RESTART (4 CPU) 09:59:01 CPU %user %nice %system %iowait %steal %idle 10:00:02 all 14.12 0.00 6.82 7.81 0.05 71.19 10:00:02 0 14.55 0.00 6.87 6.63 0.05 71.90 10:00:02 1 14.19 0.00 6.89 9.72 0.08 69.11 10:00:02 2 14.51 0.00 6.94 7.48 0.03 71.03 10:00:02 3 13.21 0.00 6.60 7.42 0.03 72.74 10:01:01 all 0.18 0.00 0.06 0.00 0.00 99.76 10:01:01 0 0.03 0.00 0.07 0.00 0.00 99.90 10:01:01 1 0.07 0.00 0.05 0.00 0.00 99.88 10:01:01 2 0.52 0.00 0.03 0.00 0.00 99.44 10:01:01 3 0.08 0.00 0.08 0.00 0.00 99.83 10:02:01 all 0.14 0.00 0.04 0.00 0.00 99.81 10:02:01 0 0.47 0.00 0.03 0.00 0.00 99.50 10:02:01 1 0.05 0.00 0.05 0.00 0.00 99.90 10:02:01 2 0.03 0.00 0.05 0.02 0.00 99.90 10:02:01 3 0.02 0.00 0.03 0.00 0.00 99.95 10:03:01 all 0.17 0.00 0.03 0.00 0.00 99.80 10:03:01 0 0.53 0.00 0.03 0.00 0.00 99.43 10:03:01 1 0.05 0.00 0.05 0.00 0.00 99.90 10:03:01 2 0.05 0.00 0.02 0.00 0.00 99.93 10:03:01 3 0.03 0.00 0.02 0.00 0.00 99.95 10:04:01 all 0.17 0.00 0.05 0.00 0.00 99.78 10:04:01 0 0.07 0.00 0.10 0.00 0.00 99.83 10:04:01 1 0.07 0.00 0.03 0.00 0.00 99.90 10:04:01 2 0.03 0.00 0.03 0.00 0.00 99.93 10:04:01 3 0.50 0.00 0.03 0.00 0.00 99.47 10:05:01 all 7.65 0.00 5.12 1.65 0.03 85.55 10:05:01 0 7.05 0.00 5.21 0.71 0.02 87.01 10:05:01 1 7.99 0.00 5.00 2.95 0.02 84.05 10:05:01 2 7.78 0.00 4.86 1.76 0.03 85.57 10:05:01 3 7.77 0.00 5.39 1.20 0.05 85.59 10:06:01 all 11.33 0.00 8.08 2.64 0.06 77.89 10:06:01 0 13.75 0.00 8.41 0.58 0.05 77.21 10:06:01 1 10.00 0.00 7.51 2.24 0.05 80.20 10:06:01 2 11.55 0.00 8.39 4.18 0.10 75.77 10:06:01 3 10.03 0.00 8.00 3.54 0.05 78.38 Average: all 4.80 0.00 2.87 1.72 0.02 90.59 Average: 0 5.18 0.00 2.94 1.13 0.02 90.74 Average: 1 4.61 0.00 2.79 2.12 0.02 90.46 Average: 2 4.91 0.00 2.89 1.91 0.02 90.27 Average: 3 4.49 0.00 2.86 1.73 0.02 90.90