---> uname -a: Linux 065cceb8b7cb 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% /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 763 121 0 952 1006 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) 06/11/20 _x86_64_ (4 CPU) 03:44:04 LINUX RESTART 03:45:02 tps rtps wtps bread/s bwrtn/s 03:46:01 3.47 0.00 3.47 0.00 111.29 03:47:01 0.35 0.00 0.35 0.00 5.83 03:48:01 0.27 0.00 0.27 0.00 3.11 03:49:01 0.25 0.00 0.25 0.00 3.75 03:50:01 0.28 0.00 0.28 0.00 4.05 03:51:01 0.32 0.02 0.30 0.13 3.55 03:52:01 0.32 0.00 0.32 0.00 3.63 03:53:01 0.38 0.00 0.38 0.00 3.63 03:54:01 0.37 0.00 0.37 0.00 5.46 03:55:01 217.02 139.43 77.59 6297.95 30728.56 03:56:01 210.22 67.11 143.11 3461.65 31888.02 Average: 39.45 18.81 20.64 888.79 5715.73 03:45:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:46:01 169616 1711940 90.99 2620 1185096 1097868 37.47 379728 1171840 20 03:47:01 167724 1713832 91.09 2620 1185100 1098012 37.47 385468 1168120 16 03:48:01 169548 1712008 90.99 2620 1185108 1081540 36.91 384496 1167268 24 03:49:01 167800 1713756 91.08 2620 1185108 1081600 36.91 390764 1163448 8 03:50:01 168820 1712736 91.03 2620 1185112 1071344 36.56 390524 1163080 12 03:51:01 169232 1712324 91.01 2620 1185124 1071436 36.57 390220 1163080 12 03:52:01 169412 1712144 91.00 2620 1185128 1071388 36.56 384448 1168600 8 03:53:01 168868 1712688 91.03 2620 1185136 1071388 36.56 384560 1168600 8 03:54:01 169092 1712464 91.01 2620 1185140 1071388 36.56 384464 1168600 20 03:55:01 170472 1711084 90.94 2620 1121800 1175672 40.12 488332 1013116 18592 03:56:01 77108 1804448 95.90 1832 1066628 1241120 42.36 624092 891952 40196 Average: 160699 1720857 91.46 2548 1168589 1102978 37.64 417009 1127973 5356 03:45:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:46:01 eth0 3.18 1.15 2.11 0.08 0.00 0.00 0.00 03:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:46:01 docker0 0.00 0.02 0.00 0.00 0.00 0.00 0.00 03:47:01 eth0 2.48 0.60 0.69 0.37 0.00 0.00 0.00 03:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:48:01 eth0 1.60 0.52 0.59 0.42 0.00 0.00 0.00 03:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:49:01 eth0 0.55 0.42 0.27 0.21 0.00 0.00 0.00 03:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:50:01 eth0 0.23 0.15 0.08 0.07 0.00 0.00 0.00 03:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:51:01 eth0 0.18 0.13 0.07 0.01 0.00 0.00 0.00 03:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:52:01 eth0 0.13 0.10 0.01 0.01 0.00 0.00 0.00 03:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:53:01 eth0 0.10 0.10 0.01 0.01 0.00 0.00 0.00 03:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:54:01 eth0 0.10 0.10 0.01 0.01 0.00 0.00 0.00 03:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:55:01 veth578099b 25.41 24.13 3.22 81.57 0.00 0.00 0.00 03:55:01 eth0 642.05 394.37 4941.09 107.07 0.00 0.00 0.00 03:55:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 03:55:01 docker0 27.33 25.63 3.20 84.92 0.00 0.00 0.00 03:56:01 eth0 240.48 179.19 3575.92 40.29 0.00 0.00 0.00 03:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:56:01 veth003d3fe 39.33 40.75 3.08 165.80 0.00 0.00 0.00 03:56:01 docker0 41.01 42.04 2.88 166.48 0.00 0.00 0.00 Average: eth0 37.84 27.37 677.13 5.36 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth003d3fe 3.58 3.71 0.28 15.10 0.00 0.00 0.00 Average: docker0 6.22 6.16 0.55 22.90 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) 06/11/20 _x86_64_ (4 CPU) 03:44:04 LINUX RESTART 03:45:02 CPU %user %nice %system %iowait %steal %idle 03:46:01 all 0.23 0.00 0.05 0.00 0.00 99.72 03:46:01 0 0.12 0.00 0.03 0.00 0.00 99.85 03:46:01 1 0.19 0.00 0.07 0.00 0.00 99.75 03:46:01 2 0.56 0.00 0.03 0.00 0.00 99.41 03:46:01 3 0.05 0.00 0.07 0.00 0.02 99.86 03:47:01 all 0.16 0.00 0.04 0.00 0.00 99.79 03:47:01 0 0.02 0.00 0.02 0.00 0.00 99.97 03:47:01 1 0.08 0.00 0.05 0.00 0.02 99.85 03:47:01 2 0.47 0.00 0.03 0.00 0.00 99.50 03:47:01 3 0.08 0.00 0.05 0.00 0.00 99.87 03:48:01 all 0.18 0.00 0.04 0.00 0.00 99.78 03:48:01 0 0.07 0.00 0.02 0.00 0.00 99.92 03:48:01 1 0.05 0.00 0.03 0.00 0.00 99.92 03:48:01 2 0.53 0.00 0.02 0.00 0.00 99.45 03:48:01 3 0.07 0.00 0.08 0.00 0.00 99.85 03:49:01 all 0.15 0.00 0.02 0.00 0.00 99.82 03:49:01 0 0.03 0.00 0.02 0.00 0.00 99.95 03:49:01 1 0.05 0.00 0.02 0.00 0.00 99.93 03:49:01 2 0.50 0.00 0.00 0.00 0.00 99.50 03:49:01 3 0.05 0.00 0.03 0.00 0.00 99.92 03:50:01 all 0.16 0.00 0.03 0.00 0.00 99.81 03:50:01 0 0.02 0.00 0.05 0.00 0.00 99.93 03:50:01 1 0.05 0.00 0.05 0.00 0.00 99.90 03:50:01 2 0.52 0.00 0.03 0.00 0.00 99.45 03:50:01 3 0.03 0.00 0.03 0.00 0.00 99.93 03:51:01 all 0.15 0.00 0.02 0.00 0.00 99.84 03:51:01 0 0.00 0.00 0.00 0.00 0.00 100.00 03:51:01 1 0.03 0.00 0.02 0.00 0.00 99.95 03:51:01 2 0.53 0.00 0.00 0.00 0.00 99.47 03:51:01 3 0.03 0.00 0.03 0.00 0.00 99.93 03:52:01 all 0.15 0.00 0.02 0.00 0.00 99.82 03:52:01 0 0.02 0.00 0.00 0.00 0.00 99.98 03:52:01 1 0.02 0.00 0.02 0.00 0.00 99.97 03:52:01 2 0.53 0.00 0.03 0.00 0.00 99.43 03:52:01 3 0.03 0.00 0.03 0.00 0.00 99.93 03:53:01 all 0.14 0.00 0.02 0.00 0.00 99.83 03:53:01 0 0.00 0.00 0.03 0.00 0.00 99.97 03:53:01 1 0.02 0.00 0.02 0.00 0.00 99.97 03:53:01 2 0.02 0.00 0.02 0.00 0.00 99.97 03:53:01 3 0.53 0.00 0.05 0.00 0.00 99.42 03:54:01 all 0.11 0.00 0.04 0.00 0.00 99.85 03:54:01 0 0.03 0.00 0.02 0.00 0.00 99.95 03:54:01 1 0.05 0.00 0.05 0.00 0.00 99.90 03:54:01 2 0.05 0.00 0.02 0.00 0.00 99.93 03:54:01 3 0.30 0.00 0.03 0.00 0.00 99.67 03:55:01 all 7.33 0.00 4.47 2.14 0.01 86.05 03:55:01 0 6.64 0.00 4.49 1.43 0.02 87.43 03:55:01 1 8.45 0.00 4.75 3.82 0.00 82.98 03:55:01 2 7.44 0.00 4.49 1.88 0.02 86.17 03:55:01 3 6.79 0.00 4.16 1.44 0.00 87.61 03:56:01 all 10.42 0.00 7.72 2.68 0.01 79.17 03:56:01 0 10.34 0.00 7.04 2.32 0.00 80.31 03:56:01 1 11.62 0.00 8.89 4.05 0.03 75.42 03:56:01 2 9.53 0.00 7.64 2.91 0.02 79.91 03:56:01 3 10.22 0.00 7.33 1.44 0.02 81.00 Average: all 1.73 0.00 1.12 0.43 0.00 96.71 Average: 0 1.56 0.00 1.06 0.34 0.00 97.05 Average: 1 1.86 0.00 1.26 0.71 0.00 96.16 Average: 2 1.87 0.00 1.11 0.43 0.00 96.59 Average: 3 1.64 0.00 1.07 0.26 0.00 97.03