---> uname -a: Linux 480251ec57fb 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 8.2G 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 774 115 0 948 997 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) 09/15/20 _x86_64_ (4 CPU) 16:56:00 LINUX RESTART (4 CPU) 16:57:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 16:58:01 30.23 10.34 19.89 0.00 4393.14 2256.17 0.00 16:59:01 0.30 0.00 0.30 0.00 0.00 4.60 0.00 17:00:01 0.27 0.00 0.27 0.00 0.00 3.90 0.00 17:01:01 0.27 0.02 0.25 0.00 0.13 2.56 0.00 17:02:01 352.77 160.90 191.87 0.00 8573.52 59774.29 0.00 Average: 75.91 33.86 42.05 0.00 2575.01 12261.64 0.00 16:57:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:58:01 158876 0 580328 30.84 2620 1139732 1127308 38.47 422236 1139460 20 16:59:01 163968 0 575232 30.57 2620 1139736 1073420 36.63 424044 1133584 12 17:00:01 160940 0 578248 30.73 2620 1139748 1073612 36.64 427256 1133580 8 17:01:01 157828 0 581360 30.90 2620 1139748 1076180 36.73 430444 1133008 8 17:02:01 140024 0 739012 39.28 1924 1000596 1273484 43.46 563040 904640 65648 Average: 156327 0 610836 32.46 2481 1111912 1124801 38.39 453404 1088854 13139 16:57:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 16:58:01 eth0 73.96 59.81 344.42 37.89 0.00 0.00 0.00 0.00 16:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:58:01 docker0 4.00 3.05 0.89 10.74 0.00 0.00 0.00 0.00 16:59:01 eth0 0.75 0.08 0.06 0.01 0.00 0.00 0.00 0.00 16:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:00:01 eth0 1.03 0.52 0.34 0.21 0.00 0.00 0.00 0.00 17:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:01:01 eth0 1.07 0.55 0.40 0.21 0.00 0.00 0.00 0.00 17:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:02:01 eth0 779.25 686.62 7241.10 63.75 0.00 0.00 0.00 0.00 17:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:02:01 docker0 17.54 16.62 1.34 123.78 0.00 0.00 0.00 0.00 Average: eth0 169.33 147.86 1499.54 20.28 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 4.27 3.89 0.44 26.61 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) 09/15/20 _x86_64_ (4 CPU) 16:56:00 LINUX RESTART (4 CPU) 16:57:01 CPU %user %nice %system %iowait %steal %idle 16:58:01 all 2.46 0.00 1.50 0.83 0.02 95.19 16:58:01 0 2.34 0.00 1.40 0.08 0.02 96.15 16:58:01 1 2.46 0.00 1.99 0.22 0.02 95.32 16:58:01 2 2.37 0.00 1.25 2.39 0.02 93.97 16:58:01 3 2.66 0.00 1.37 0.62 0.02 95.33 16:59:01 all 0.16 0.00 0.04 0.00 0.00 99.80 16:59:01 0 0.50 0.00 0.02 0.00 0.00 99.48 16:59:01 1 0.03 0.00 0.05 0.00 0.00 99.92 16:59:01 2 0.05 0.00 0.05 0.00 0.00 99.90 16:59:01 3 0.07 0.00 0.05 0.00 0.00 99.88 17:00:01 all 0.15 0.00 0.03 0.00 0.00 99.81 17:00:01 0 0.48 0.00 0.03 0.00 0.00 99.48 17:00:01 1 0.03 0.00 0.02 0.00 0.00 99.95 17:00:01 2 0.07 0.00 0.05 0.00 0.00 99.88 17:00:01 3 0.03 0.00 0.03 0.00 0.00 99.93 17:01:01 all 0.15 0.00 0.05 0.00 0.00 99.80 17:01:01 0 0.50 0.00 0.03 0.00 0.00 99.47 17:01:01 1 0.02 0.00 0.07 0.00 0.00 99.92 17:01:01 2 0.07 0.00 0.05 0.00 0.00 99.88 17:01:01 3 0.03 0.00 0.03 0.02 0.00 99.92 17:02:01 all 15.60 0.00 10.50 4.10 0.06 69.74 17:02:01 0 15.27 0.00 10.85 4.32 0.02 69.54 17:02:01 1 15.19 0.00 11.10 3.92 0.05 69.73 17:02:01 2 16.15 0.00 9.67 2.76 0.07 71.34 17:02:01 3 15.78 0.00 10.39 5.38 0.09 68.36 Average: all 3.60 0.00 2.36 0.96 0.01 93.07 Average: 0 3.71 0.00 2.39 0.85 0.01 93.04 Average: 1 3.45 0.00 2.58 0.80 0.01 93.16 Average: 2 3.64 0.00 2.15 1.02 0.02 93.18 Average: 3 3.61 0.00 2.31 1.17 0.02 92.89