---> uname -a: Linux 6f0ace76d9aa 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% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/gexfoundry_device-mqtt-go_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/gexfoundry_device-mqtt-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 778 107 0 951 991 Swap: 1023 4 1019 ---> 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 24: eth0@if25: 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) 07/22/20 _x86_64_ (4 CPU) 07:05:12 LINUX RESTART 07:06:01 tps rtps wtps bread/s bwrtn/s 07:07:01 47.21 13.06 34.15 4728.26 2317.88 07:08:01 1.53 0.00 1.53 0.00 23.63 07:09:01 0.23 0.00 0.23 0.00 2.98 07:10:02 0.18 0.00 0.18 0.00 1.88 07:11:01 0.36 0.00 0.36 0.00 5.84 07:12:01 0.35 0.00 0.35 0.00 4.51 07:13:01 0.33 0.02 0.32 0.13 3.51 07:14:01 0.22 0.00 0.22 0.00 2.43 07:15:01 0.18 0.00 0.18 0.00 2.03 07:16:01 34.42 5.47 28.95 454.86 17502.81 07:17:02 227.23 144.07 83.16 6015.82 18501.35 07:18:01 223.60 97.67 125.93 6072.94 28924.75 Average: 44.64 21.72 22.92 1439.15 5604.75 07:06:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:07:01 161124 1720432 91.44 2620 1184224 1121460 38.27 404560 1155044 20 07:08:01 166244 1715312 91.16 2620 1184228 1100252 37.55 400884 1154120 8 07:09:01 164416 1717140 91.26 2620 1184236 1100276 37.55 403120 1153924 8 07:10:02 169724 1711832 90.98 2620 1184284 1055808 36.03 399708 1152760 8 07:11:01 167888 1713668 91.08 2620 1184240 1056012 36.04 402540 1152164 12 07:12:01 167544 1714012 91.10 2620 1184248 1055892 36.04 403700 1151020 12 07:13:01 167940 1713616 91.07 2620 1184252 1055808 36.03 421428 1133240 8 07:14:01 167900 1713656 91.08 2620 1184260 1055808 36.03 419028 1135648 20 07:15:01 167456 1714100 91.10 2620 1184264 1055892 36.04 419372 1135648 8 07:16:01 246004 1635552 86.93 2620 1028264 1263228 43.11 425648 1012692 73668 07:17:02 72296 1809260 96.16 2620 1122812 1302332 44.45 542796 1059244 47468 07:18:01 158104 1723452 91.60 1580 974764 1149228 39.22 604932 826792 112 Average: 164720 1716836 91.25 2533 1148673 1114333 38.03 437310 1101858 10113 07:06:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 07:07:01 eth0 124.46 88.97 544.55 51.62 0.00 0.00 0.00 07:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:07:01 docker0 1.58 1.56 0.28 3.48 0.00 0.00 0.00 07:08:01 eth0 1.58 0.35 0.37 0.20 0.00 0.00 0.00 07:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:09:01 eth0 0.83 0.42 0.53 0.38 0.00 0.00 0.00 07:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:10:02 eth0 0.67 0.03 0.06 0.00 0.00 0.00 0.00 07:10:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:10:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:11:01 eth0 1.49 0.81 0.69 0.48 0.00 0.00 0.00 07:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:12:01 eth0 0.17 0.10 0.07 0.01 0.00 0.00 0.00 07:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:13:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 07:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:14:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 07:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:15:01 eth0 0.53 0.35 0.27 0.20 0.00 0.00 0.00 07:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:16:01 eth0 93.56 66.56 3732.10 8.46 0.00 0.00 0.00 07:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:17:02 eth0 191.45 145.35 3124.85 79.72 0.00 0.00 0.00 07:17:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:17:02 docker0 26.90 26.95 3.13 81.14 0.00 0.00 0.00 07:18:01 eth0 163.16 103.23 578.24 97.49 0.00 0.00 0.00 07:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:18:01 docker0 43.32 74.98 2.48 170.70 0.00 0.00 0.00 Average: eth0 48.25 33.95 670.41 19.86 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 5.96 8.56 0.49 21.15 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) 07/22/20 _x86_64_ (4 CPU) 07:05:12 LINUX RESTART 07:06:01 CPU %user %nice %system %iowait %steal %idle 07:07:01 all 3.62 0.00 1.63 1.73 1.41 91.62 07:07:01 0 4.08 0.00 1.94 0.32 1.28 92.37 07:07:01 1 3.89 0.00 1.42 1.97 1.28 91.44 07:07:01 2 3.17 0.00 1.33 0.49 1.31 93.70 07:07:01 3 3.30 0.00 1.87 4.13 1.77 88.94 07:08:01 all 0.15 0.00 0.03 0.00 0.09 99.73 07:08:01 0 0.02 0.00 0.02 0.00 0.08 99.88 07:08:01 1 0.50 0.00 0.05 0.00 0.07 99.38 07:08:01 2 0.08 0.00 0.05 0.00 0.20 99.67 07:08:01 3 0.02 0.00 0.02 0.00 0.00 99.97 07:09:01 all 0.14 0.00 0.03 0.00 0.06 99.77 07:09:01 0 0.12 0.00 0.02 0.00 0.02 99.85 07:09:01 1 0.33 0.00 0.05 0.00 0.08 99.53 07:09:01 2 0.05 0.00 0.07 0.00 0.12 99.77 07:09:01 3 0.03 0.00 0.02 0.00 0.02 99.93 07:10:02 all 0.11 0.00 0.03 0.00 0.05 99.80 07:10:02 0 0.02 0.00 0.02 0.00 0.02 99.95 07:10:02 1 0.30 0.00 0.02 0.00 0.13 99.55 07:10:02 2 0.07 0.00 0.05 0.00 0.07 99.82 07:10:02 3 0.08 0.00 0.00 0.00 0.00 99.92 07:11:01 all 0.13 0.00 0.04 0.00 0.05 99.78 07:11:01 0 0.05 0.00 0.03 0.00 0.02 99.90 07:11:01 1 0.07 0.00 0.05 0.00 0.10 99.78 07:11:01 2 0.03 0.00 0.02 0.00 0.03 99.92 07:11:01 3 0.36 0.00 0.05 0.00 0.05 99.54 07:12:01 all 0.12 0.00 0.06 0.00 0.20 99.62 07:12:01 0 0.02 0.00 0.17 0.00 0.10 99.72 07:12:01 1 0.05 0.00 0.03 0.00 0.48 99.43 07:12:01 2 0.03 0.00 0.03 0.00 0.13 99.80 07:12:01 3 0.38 0.00 0.02 0.00 0.05 99.55 07:13:01 all 0.12 0.00 0.05 0.00 0.05 99.78 07:13:01 0 0.02 0.00 0.10 0.02 0.00 99.87 07:13:01 1 0.07 0.00 0.07 0.00 0.10 99.77 07:13:01 2 0.02 0.00 0.00 0.00 0.02 99.97 07:13:01 3 0.40 0.00 0.02 0.00 0.05 99.53 07:14:01 all 0.13 0.00 0.03 0.00 0.03 99.81 07:14:01 0 0.00 0.00 0.02 0.00 0.02 99.97 07:14:01 1 0.07 0.00 0.07 0.00 0.08 99.78 07:14:01 2 0.03 0.00 0.03 0.00 0.05 99.88 07:14:01 3 0.43 0.00 0.03 0.00 0.02 99.52 07:15:01 all 0.15 0.00 0.02 0.00 0.05 99.78 07:15:01 0 0.03 0.00 0.02 0.00 0.02 99.93 07:15:01 1 0.07 0.00 0.03 0.00 0.08 99.82 07:15:01 2 0.02 0.00 0.00 0.00 0.07 99.92 07:15:01 3 0.48 0.00 0.00 0.00 0.02 99.50 07:16:01 all 3.27 0.00 1.71 0.61 1.97 92.44 07:16:01 0 2.99 0.00 1.68 1.03 1.90 92.40 07:16:01 1 3.38 0.00 1.90 0.52 2.14 92.06 07:16:01 2 3.25 0.00 1.46 0.47 1.78 93.03 07:16:01 3 3.45 0.00 1.78 0.40 2.10 92.26 07:17:02 all 6.15 0.00 4.19 2.65 4.63 82.37 07:17:02 0 5.76 0.00 4.14 3.19 4.44 82.47 07:17:02 1 7.22 0.00 4.43 2.66 4.59 81.10 07:17:02 2 5.80 0.00 3.98 2.27 4.42 83.53 07:17:02 3 5.81 0.00 4.26 2.49 5.06 82.37 07:18:01 all 8.62 0.00 5.71 3.25 7.78 74.65 07:18:01 0 6.47 0.00 4.49 1.41 8.20 79.42 07:18:01 1 12.91 0.00 6.80 3.22 7.71 69.35 07:18:01 2 6.75 0.00 4.84 1.31 7.36 79.74 07:18:01 3 8.46 0.00 6.70 7.15 7.84 69.85 Average: all 1.87 0.00 1.11 0.68 1.34 95.00 Average: 0 1.62 0.00 1.04 0.49 1.33 95.53 Average: 1 2.36 0.00 1.22 0.69 1.38 94.37 Average: 2 1.60 0.00 0.98 0.38 1.29 95.76 Average: 3 1.91 0.00 1.21 1.16 1.39 94.33