---> uname -a: Linux 7891c1086fe7 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 8.2G 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% /var/log/sa-host /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/gexfoundry_device-mqtt-go_master /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/gexfoundry_device-mqtt-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 746 116 0 974 1026 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 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) 09/08/20 _x86_64_ (4 CPU) 04:43:44 LINUX RESTART (4 CPU) 04:45:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 04:46:01 3.18 0.00 3.18 0.00 0.00 101.62 0.00 04:47:01 0.33 0.00 0.33 0.00 0.00 4.88 0.00 04:48:01 0.27 0.00 0.27 0.00 0.00 3.51 0.00 04:49:01 0.28 0.00 0.28 0.00 0.00 3.23 0.00 04:50:01 157.05 88.83 68.22 0.00 5324.19 30313.00 0.00 04:51:01 128.13 44.66 83.47 0.00 2191.58 16183.43 0.00 Average: 48.27 22.27 26.00 0.00 1253.43 7774.94 0.00 04:45:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:46:01 161324 0 550128 29.24 2620 1167484 1105004 37.71 423808 1136628 12 04:47:01 163108 0 548340 29.14 2620 1167488 1074416 36.67 425060 1133608 8 04:48:01 161112 0 550332 29.25 2620 1167492 1074516 36.67 427368 1133600 20 04:49:01 158588 0 552852 29.38 2620 1167496 1074576 36.67 432804 1130188 12 04:50:01 133804 0 644924 34.28 2620 1100208 1281200 43.73 476960 1076896 56 04:51:01 97392 0 691572 36.76 2596 1089996 1512476 51.62 607360 964240 83544 Average: 145888 0 589691 31.34 2616 1143361 1187031 40.51 465560 1095860 13942 04:45:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 04:46:01 eth0 4.61 1.48 3.28 0.27 0.00 0.00 0.00 0.00 04:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:47:01 eth0 2.11 0.68 0.65 0.40 0.00 0.00 0.00 0.00 04:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:48:01 eth0 2.31 0.98 0.88 0.60 0.00 0.00 0.00 0.00 04:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:49:01 eth0 2.48 0.48 0.44 0.21 0.00 0.00 0.00 0.00 04:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:50:01 eth0 414.22 355.27 3786.64 29.89 0.00 0.00 0.00 0.00 04:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:50:01 vethdb1afcc 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 04:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:51:01 eth0 474.69 406.30 3480.93 108.93 0.00 0.00 0.00 0.00 04:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:51:01 docker0 26.95 28.14 3.07 80.79 0.00 0.00 0.00 0.00 Average: eth0 150.30 127.73 1213.79 23.44 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 4.51 4.71 0.51 13.51 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) 09/08/20 _x86_64_ (4 CPU) 04:43:44 LINUX RESTART (4 CPU) 04:45:01 CPU %user %nice %system %iowait %steal %idle 04:46:01 all 0.20 0.00 0.06 0.00 0.00 99.74 04:46:01 0 0.38 0.00 0.08 0.00 0.00 99.53 04:46:01 1 0.28 0.00 0.03 0.00 0.00 99.68 04:46:01 2 0.08 0.00 0.07 0.00 0.00 99.85 04:46:01 3 0.07 0.00 0.05 0.00 0.00 99.88 04:47:01 all 0.18 0.00 0.05 0.00 0.00 99.78 04:47:01 0 0.50 0.00 0.05 0.00 0.00 99.45 04:47:01 1 0.03 0.00 0.05 0.00 0.00 99.92 04:47:01 2 0.10 0.00 0.05 0.00 0.00 99.85 04:47:01 3 0.08 0.00 0.03 0.00 0.00 99.88 04:48:01 all 0.18 0.00 0.04 0.00 0.00 99.78 04:48:01 0 0.55 0.00 0.03 0.00 0.00 99.42 04:48:01 1 0.03 0.00 0.05 0.00 0.00 99.92 04:48:01 2 0.12 0.00 0.03 0.00 0.00 99.85 04:48:01 3 0.03 0.00 0.03 0.00 0.00 99.93 04:49:01 all 0.16 0.00 0.05 0.00 0.00 99.79 04:49:01 0 0.52 0.00 0.07 0.00 0.00 99.42 04:49:01 1 0.03 0.00 0.07 0.00 0.00 99.90 04:49:01 2 0.05 0.00 0.03 0.00 0.02 99.90 04:49:01 3 0.03 0.00 0.02 0.00 0.00 99.95 04:50:01 all 6.37 0.00 3.91 0.85 0.02 88.84 04:50:01 0 6.32 0.00 3.96 0.44 0.05 89.24 04:50:01 1 6.34 0.00 3.69 0.56 0.02 89.40 04:50:01 2 6.26 0.00 4.06 0.22 0.02 89.44 04:50:01 3 6.57 0.00 3.93 2.19 0.00 87.30 04:51:01 all 7.68 0.00 5.47 1.74 0.04 85.07 04:51:01 0 7.72 0.00 5.55 2.57 0.03 84.13 04:51:01 1 7.77 0.00 5.79 1.65 0.05 84.74 04:51:01 2 7.88 0.00 5.37 1.78 0.02 84.95 04:51:01 3 7.36 0.00 5.15 0.98 0.05 86.46 Average: all 2.45 0.00 1.58 0.43 0.01 95.53 Average: 0 2.64 0.00 1.61 0.50 0.01 95.24 Average: 1 2.40 0.00 1.60 0.36 0.01 95.62 Average: 2 2.40 0.00 1.59 0.33 0.01 95.66 Average: 3 2.34 0.00 1.53 0.52 0.01 95.60