---> uname -a: Linux 7c09a60a951a 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% /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 780 119 0 937 994 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 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) 09/17/20 _x86_64_ (4 CPU) 08:57:01 LINUX RESTART (4 CPU) 08:58:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:59:01 9.43 4.48 4.95 0.00 782.81 140.82 0.00 09:00:01 0.37 0.00 0.37 0.00 0.00 5.63 0.00 09:01:01 0.42 0.05 0.37 0.00 0.67 5.71 0.00 09:02:01 0.42 0.08 0.33 0.00 1.60 6.34 0.00 09:03:01 0.30 0.00 0.30 0.00 0.00 5.06 0.00 09:04:01 0.28 0.02 0.27 0.00 0.13 3.53 0.00 09:05:01 0.17 0.00 0.17 0.00 0.00 2.22 0.00 09:06:01 15.07 2.27 12.81 0.00 279.01 9821.05 0.00 09:07:01 236.45 126.53 109.92 0.00 6907.32 29932.71 0.00 09:08:02 239.17 110.45 128.72 0.00 8217.67 28675.27 0.00 Average: 50.24 24.40 25.83 0.00 1619.82 6863.19 0.00 08:58:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:59:01 160424 0 579456 30.80 2620 1139056 1110496 37.90 426868 1134732 20 09:00:01 163524 0 576352 30.63 2620 1139060 1093616 37.32 428592 1130592 20 09:01:01 163200 0 576668 30.65 2620 1139068 1090960 37.23 429196 1130220 16 09:02:01 163568 0 576164 30.62 2620 1139204 1080908 36.89 430356 1129396 20 09:03:01 163276 0 576448 30.64 2620 1139212 1081024 36.89 440644 1119496 20 09:04:01 162740 0 576976 30.66 2620 1139220 1081048 36.89 440728 1119496 20 09:05:01 162608 0 577104 30.67 2620 1139224 1081036 36.89 439576 1120612 20 09:06:01 69688 0 653784 34.75 2620 1155464 1497432 51.10 532100 1112060 107536 09:07:01 78256 0 706936 37.57 2596 1093768 1520432 51.89 633008 974588 70432 09:08:02 75716 0 808856 42.99 1492 995492 1529040 52.18 669556 834728 64532 Average: 136300 0 620874 33.00 2505 1121877 1216599 41.52 487062 1080592 24264 08:58:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:59:01 eth0 29.18 20.37 25.95 24.67 0.00 0.00 0.00 0.00 08:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:59:01 docker0 2.33 1.78 0.37 3.63 0.00 0.00 0.00 0.00 09:00:01 eth0 2.55 0.78 0.91 0.59 0.00 0.00 0.00 0.00 09:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:01:01 eth0 0.50 0.30 0.27 0.20 0.00 0.00 0.00 0.00 09:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:02:01 eth0 2.90 0.32 0.48 0.20 0.00 0.00 0.00 0.00 09:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:01 eth0 4.60 0.60 0.98 0.45 0.00 0.00 0.00 0.00 09:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 eth0 2.00 0.53 0.64 0.39 0.00 0.00 0.00 0.00 09:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:05:01 eth0 1.92 0.55 0.61 0.40 0.00 0.00 0.00 0.00 09:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:06:01 eth0 395.79 359.74 3776.91 26.14 0.00 0.00 0.00 0.00 09:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:07:01 eth0 476.48 423.52 3499.86 104.46 0.00 0.00 0.00 0.00 09:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:07:01 docker0 25.17 23.80 2.87 80.14 0.00 0.00 0.00 0.00 09:08:02 eth0 182.33 148.31 999.12 76.27 0.00 0.00 0.00 0.00 09:08:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:08:02 docker0 27.56 31.37 1.60 198.78 0.00 0.00 0.00 0.00 Average: eth0 109.85 95.53 830.76 23.39 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 5.51 5.70 0.48 28.27 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) 09/17/20 _x86_64_ (4 CPU) 08:57:01 LINUX RESTART (4 CPU) 08:58:01 CPU %user %nice %system %iowait %steal %idle 08:59:01 all 1.18 0.00 0.66 0.04 0.00 98.13 08:59:01 0 1.02 0.00 0.75 0.02 0.00 98.21 08:59:01 1 1.09 0.00 0.48 0.03 0.00 98.40 08:59:01 2 1.43 0.00 0.67 0.03 0.00 97.86 08:59:01 3 1.17 0.00 0.72 0.08 0.00 98.03 09:00:01 all 0.15 0.00 0.04 0.00 0.00 99.81 09:00:01 0 0.02 0.00 0.03 0.00 0.00 99.95 09:00:01 1 0.05 0.00 0.05 0.00 0.00 99.90 09:00:01 2 0.50 0.00 0.03 0.00 0.00 99.47 09:00:01 3 0.03 0.00 0.03 0.00 0.02 99.92 09:01:01 all 0.19 0.00 0.03 0.00 0.00 99.78 09:01:01 0 0.05 0.00 0.03 0.00 0.00 99.92 09:01:01 1 0.07 0.00 0.03 0.00 0.00 99.90 09:01:01 2 0.57 0.00 0.03 0.00 0.00 99.40 09:01:01 3 0.08 0.00 0.02 0.00 0.00 99.90 09:02:01 all 0.16 0.00 0.03 0.00 0.00 99.81 09:02:01 0 0.03 0.00 0.03 0.00 0.00 99.93 09:02:01 1 0.23 0.00 0.07 0.00 0.00 99.70 09:02:01 2 0.35 0.00 0.02 0.00 0.00 99.63 09:02:01 3 0.02 0.00 0.02 0.00 0.00 99.97 09:03:01 all 0.17 0.00 0.05 0.00 0.00 99.77 09:03:01 0 0.07 0.00 0.02 0.00 0.00 99.92 09:03:01 1 0.53 0.00 0.17 0.00 0.00 99.30 09:03:01 2 0.05 0.00 0.02 0.00 0.00 99.93 09:03:01 3 0.03 0.00 0.02 0.00 0.00 99.95 09:04:01 all 0.15 0.00 0.02 0.00 0.00 99.82 09:04:01 0 0.02 0.00 0.02 0.00 0.00 99.97 09:04:01 1 0.53 0.00 0.02 0.00 0.00 99.45 09:04:01 2 0.05 0.00 0.05 0.00 0.00 99.90 09:04:01 3 0.02 0.00 0.02 0.00 0.00 99.97 09:05:01 all 0.14 0.00 0.03 0.00 0.00 99.83 09:05:01 0 0.02 0.00 0.02 0.00 0.00 99.97 09:05:01 1 0.45 0.00 0.07 0.00 0.00 99.48 09:05:01 2 0.05 0.00 0.02 0.00 0.00 99.93 09:05:01 3 0.03 0.00 0.02 0.00 0.00 99.95 09:06:01 all 2.18 0.00 1.21 0.03 0.00 96.57 09:06:01 0 2.06 0.00 1.51 0.02 0.00 96.41 09:06:01 1 2.11 0.00 1.02 0.02 0.00 96.84 09:06:01 2 2.33 0.00 1.09 0.05 0.00 96.54 09:06:01 3 2.22 0.00 1.22 0.05 0.00 96.51 09:07:01 all 9.41 0.00 5.83 3.14 0.02 81.60 09:07:01 0 9.00 0.00 6.33 3.38 0.03 81.26 09:07:01 1 9.52 0.00 5.93 1.40 0.03 83.12 09:07:01 2 8.48 0.00 5.69 3.65 0.02 82.17 09:07:01 3 10.66 0.00 5.38 4.11 0.00 79.85 09:08:02 all 10.74 0.00 6.66 3.55 0.02 79.04 09:08:02 0 9.16 0.00 6.24 1.10 0.02 83.48 09:08:02 1 12.06 0.00 6.27 3.14 0.02 78.51 09:08:02 2 11.43 0.00 7.02 5.08 0.02 76.46 09:08:02 3 10.28 0.00 7.09 4.88 0.03 77.71 Average: all 2.43 0.00 1.44 0.67 0.00 95.46 Average: 0 2.12 0.00 1.48 0.44 0.01 95.94 Average: 1 2.65 0.00 1.40 0.46 0.01 95.49 Average: 2 2.50 0.00 1.45 0.87 0.00 95.17 Average: 3 2.43 0.00 1.44 0.90 0.01 95.22