---> uname -a: Linux 617e38d0216a 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: 2933.442 BogoMIPS: 5866.88 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/ndry_go-mod-configuration_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/ndry_go-mod-configuration_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 781 101 0 954 987 Swap: 1023 3 1020 ---> 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) 06/18/20 _x86_64_ (4 CPU) 17:20:36 LINUX RESTART 17:21:02 tps rtps wtps bread/s bwrtn/s 17:22:01 95.19 40.50 54.69 7599.32 9787.78 17:23:01 1.95 0.00 1.95 0.00 40.96 17:24:02 0.57 0.00 0.57 0.00 10.23 17:25:01 0.30 0.00 0.30 0.00 4.93 17:26:01 256.60 157.03 99.57 7164.38 38482.45 17:27:01 260.29 114.10 146.19 8291.22 35866.81 Average: 103.00 52.24 50.76 3848.06 14115.17 17:21:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:22:01 162216 1719340 91.38 2620 1128864 1114300 38.03 428328 1131596 120 17:23:01 168356 1713200 91.05 2620 1128868 1072484 36.60 426756 1128108 20 17:24:02 167292 1714264 91.11 2620 1128876 1072712 36.61 428152 1128096 8 17:25:01 165904 1715652 91.18 2620 1128876 1072652 36.61 429612 1127504 8 17:26:01 72796 1808760 96.13 2596 1095644 1505804 51.39 657908 946596 79488 17:27:01 180448 1701108 90.41 1492 931980 1301488 44.42 617384 793760 83408 Average: 152835 1728721 91.88 2428 1090518 1189907 40.61 498023 1042610 27175 17:21:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 17:22:01 eth0 498.53 286.93 1052.30 90.26 0.00 0.00 0.00 17:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:22:01 docker0 0.69 0.69 0.11 0.62 0.00 0.00 0.00 17:23:01 eth0 0.73 0.08 0.06 0.01 0.00 0.00 0.00 17:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:24:02 eth0 0.73 0.45 0.29 0.21 0.00 0.00 0.00 17:24:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:24:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:25:01 eth0 0.69 0.32 0.30 0.20 0.00 0.00 0.00 17:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:26:01 eth0 257.08 187.95 6937.45 27.12 0.00 0.00 0.00 17:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:26:01 docker0 13.21 11.74 1.44 22.00 0.00 0.00 0.00 17:27:01 eth0 237.68 168.13 2551.05 86.26 0.00 0.00 0.00 17:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:27:01 docker0 40.96 54.89 2.71 161.74 0.00 0.00 0.00 Average: eth0 165.60 107.23 1769.30 33.96 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 9.21 11.29 0.71 30.93 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) 06/18/20 _x86_64_ (4 CPU) 17:20:36 LINUX RESTART 17:21:02 CPU %user %nice %system %iowait %steal %idle 17:22:01 all 12.79 0.00 5.59 3.89 0.02 77.72 17:22:01 0 13.33 0.00 6.08 3.57 0.02 77.01 17:22:01 1 12.37 0.00 5.79 3.66 0.02 78.15 17:22:01 2 12.48 0.00 5.49 3.39 0.00 78.64 17:22:01 3 12.97 0.00 5.05 4.93 0.03 77.03 17:23:01 all 0.15 0.00 0.05 0.00 0.00 99.80 17:23:01 0 0.02 0.00 0.03 0.00 0.00 99.95 17:23:01 1 0.03 0.00 0.05 0.00 0.00 99.92 17:23:01 2 0.05 0.00 0.03 0.00 0.00 99.92 17:23:01 3 0.52 0.00 0.07 0.00 0.00 99.42 17:24:02 all 0.15 0.00 0.03 0.00 0.00 99.81 17:24:02 0 0.03 0.00 0.03 0.00 0.00 99.93 17:24:02 1 0.03 0.00 0.03 0.00 0.00 99.93 17:24:02 2 0.07 0.00 0.05 0.00 0.00 99.88 17:24:02 3 0.48 0.00 0.03 0.00 0.00 99.48 17:25:01 all 0.16 0.00 0.03 0.00 0.00 99.81 17:25:01 0 0.07 0.00 0.03 0.00 0.00 99.90 17:25:01 1 0.03 0.00 0.02 0.00 0.00 99.95 17:25:01 2 0.03 0.00 0.02 0.00 0.00 99.95 17:25:01 3 0.47 0.00 0.03 0.00 0.00 99.49 17:26:01 all 9.48 0.00 5.56 1.74 0.03 83.19 17:26:01 0 9.63 0.00 6.22 1.53 0.02 82.60 17:26:01 1 9.12 0.00 5.42 2.28 0.02 83.16 17:26:01 2 9.68 0.00 5.26 2.36 0.05 82.65 17:26:01 3 9.48 0.00 5.35 0.81 0.03 84.32 17:27:01 all 11.79 0.00 7.82 4.10 0.02 76.27 17:27:01 0 12.88 0.00 8.14 3.33 0.02 75.64 17:27:01 1 10.58 0.00 7.49 3.07 0.02 78.85 17:27:01 2 11.70 0.00 8.42 3.87 0.02 76.00 17:27:01 3 12.00 0.00 7.20 6.15 0.02 74.63 Average: all 5.72 0.00 3.17 1.61 0.01 89.48 Average: 0 5.96 0.00 3.41 1.39 0.01 89.23 Average: 1 5.34 0.00 3.12 1.49 0.01 90.04 Average: 2 5.64 0.00 3.20 1.60 0.01 89.55 Average: 3 5.95 0.00 2.94 1.96 0.01 89.13