---> uname -a: Linux 7018584ca3cb 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 6.9G 43.0G 14% / 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 6.9G 43.0G 14% /etc/resolv.conf /dev/vda1 50.0G 6.9G 43.0G 14% /etc/hostname /dev/vda1 50.0G 6.9G 43.0G 14% /etc/hosts /dev/vda1 50.0G 6.9G 43.0G 14% /var/log/sa-host /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-166 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-166@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 646 137 0 1053 1085 Swap: 1023 0 1023 ---> 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 6: eth0@if7: 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) 19:16:58 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:01 6.69 1.63 5.06 0.00 84.43 143.23 0.00 19:20:01 0.30 0.00 0.30 0.00 0.00 4.60 0.00 19:21:01 0.28 0.00 0.28 0.00 0.00 4.30 0.00 19:22:01 0.28 0.00 0.28 0.00 0.00 3.10 0.00 19:23:01 0.32 0.00 0.32 0.00 0.00 4.46 0.00 19:24:01 0.27 0.02 0.25 0.00 0.13 2.91 0.00 19:25:01 0.25 0.00 0.25 0.00 0.00 2.72 0.00 19:26:01 0.27 0.00 0.27 0.00 0.00 3.25 0.00 19:27:01 0.25 0.00 0.25 0.00 0.00 3.40 0.00 19:28:01 0.28 0.00 0.28 0.00 0.00 3.51 0.00 19:29:01 0.25 0.00 0.25 0.00 0.00 2.56 0.00 Average: 0.86 0.15 0.71 0.00 7.69 16.19 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:01 176180 0 559360 29.73 2620 1143396 1097380 37.45 422184 1122488 20 19:20:01 176324 0 559212 29.72 2620 1143400 1071036 36.55 424724 1120516 24 19:21:01 175268 0 560264 29.78 2620 1143404 1071096 36.55 424992 1120516 8 19:22:01 175184 0 560344 29.78 2620 1143408 1070976 36.55 434580 1111456 16 19:23:01 176044 0 559480 29.73 2620 1143412 1070868 36.55 440460 1104992 12 19:24:01 176280 0 559228 29.72 2620 1143428 1070820 36.55 440176 1104992 16 19:25:01 175808 0 559700 29.75 2620 1143428 1070940 36.55 437840 1107872 8 19:26:01 175072 0 560428 29.79 2620 1143436 1070988 36.55 438360 1107872 20 19:27:01 176484 0 559012 29.71 2620 1143440 1070772 36.54 437064 1107872 16 19:28:01 173652 0 561836 29.86 2620 1143448 1073424 36.63 432736 1115060 16 19:29:01 173664 0 561824 29.86 2620 1143448 1073352 36.63 432436 1115056 12 Average: 175451 0 560063 29.77 2620 1143423 1073787 36.65 433232 1112608 15 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:01 eth0 18.08 13.32 19.93 9.33 0.00 0.00 0.00 0.00 19:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:19:01 docker0 1.98 1.60 0.34 3.53 0.00 0.00 0.00 0.00 19:20:01 eth0 3.43 1.15 2.92 0.08 0.00 0.00 0.00 0.00 19:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:21:01 eth0 0.83 0.25 0.31 0.20 0.00 0.00 0.00 0.00 19:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:22:01 eth0 0.93 0.70 0.53 0.40 0.00 0.00 0.00 0.00 19:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:23:01 eth0 0.18 0.15 0.08 0.07 0.00 0.00 0.00 0.00 19:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:24:01 eth0 0.62 0.13 0.10 0.01 0.00 0.00 0.00 0.00 19:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:25:01 eth0 1.25 0.33 0.34 0.17 0.00 0.00 0.00 0.00 19:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:26:01 eth0 0.50 0.30 0.27 0.20 0.00 0.00 0.00 0.00 19:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:27:01 eth0 0.08 0.08 0.01 0.04 0.00 0.00 0.00 0.00 19:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:28:01 eth0 0.23 0.17 0.08 0.07 0.00 0.00 0.00 0.00 19:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:29:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 0.00 19:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.38 1.52 2.24 0.96 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 0.18 0.15 0.03 0.32 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) 19:16:58 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:01 all 1.00 0.00 0.53 0.03 0.01 98.43 19:19:01 0 1.42 0.00 0.48 0.02 0.02 98.07 19:19:01 1 0.92 0.00 0.55 0.05 0.00 98.48 19:19:01 2 0.92 0.00 0.55 0.07 0.02 98.45 19:19:01 3 0.77 0.00 0.52 0.00 0.00 98.72 19:20:01 all 0.22 0.00 0.04 0.00 0.00 99.74 19:20:01 0 0.48 0.00 0.05 0.00 0.00 99.47 19:20:01 1 0.13 0.00 0.02 0.00 0.00 99.85 19:20:01 2 0.20 0.00 0.03 0.00 0.00 99.77 19:20:01 3 0.05 0.00 0.07 0.00 0.00 99.88 19:21:01 all 0.15 0.00 0.03 0.00 0.00 99.82 19:21:01 0 0.05 0.00 0.02 0.00 0.00 99.93 19:21:01 1 0.03 0.00 0.03 0.00 0.00 99.93 19:21:01 2 0.52 0.00 0.03 0.00 0.00 99.45 19:21:01 3 0.02 0.00 0.02 0.00 0.00 99.97 19:22:01 all 0.17 0.00 0.05 0.00 0.00 99.78 19:22:01 0 0.02 0.00 0.08 0.00 0.00 99.90 19:22:01 1 0.07 0.00 0.05 0.00 0.00 99.88 19:22:01 2 0.55 0.00 0.03 0.00 0.00 99.42 19:22:01 3 0.03 0.00 0.03 0.00 0.00 99.93 19:23:01 all 0.16 0.00 0.05 0.00 0.00 99.78 19:23:01 0 0.02 0.00 0.13 0.00 0.00 99.85 19:23:01 1 0.05 0.00 0.03 0.00 0.02 99.90 19:23:01 2 0.53 0.00 0.05 0.00 0.00 99.42 19:23:01 3 0.03 0.00 0.00 0.00 0.00 99.97 19:24:01 all 0.11 0.00 0.05 0.00 0.00 99.84 19:24:01 0 0.00 0.00 0.02 0.00 0.00 99.98 19:24:01 1 0.25 0.00 0.10 0.00 0.00 99.65 19:24:01 2 0.17 0.00 0.05 0.00 0.00 99.78 19:24:01 3 0.02 0.00 0.03 0.00 0.00 99.95 19:25:01 all 0.05 0.00 0.03 0.00 0.00 99.92 19:25:01 0 0.03 0.00 0.02 0.00 0.00 99.95 19:25:01 1 0.08 0.00 0.05 0.00 0.00 99.87 19:25:01 2 0.05 0.00 0.02 0.00 0.00 99.93 19:25:01 3 0.03 0.00 0.02 0.00 0.00 99.95 19:26:01 all 0.10 0.00 0.03 0.00 0.00 99.87 19:26:01 0 0.08 0.00 0.03 0.00 0.00 99.88 19:26:01 1 0.10 0.00 0.02 0.00 0.00 99.88 19:26:01 2 0.20 0.00 0.03 0.00 0.00 99.77 19:26:01 3 0.02 0.00 0.03 0.00 0.00 99.95 19:27:01 all 0.16 0.00 0.02 0.00 0.00 99.82 19:27:01 0 0.02 0.00 0.02 0.00 0.00 99.97 19:27:01 1 0.07 0.00 0.05 0.00 0.00 99.88 19:27:01 2 0.53 0.00 0.02 0.00 0.00 99.45 19:27:01 3 0.02 0.00 0.02 0.00 0.00 99.97 19:28:01 all 0.14 0.00 0.02 0.00 0.00 99.83 19:28:01 0 0.00 0.00 0.02 0.00 0.00 99.98 19:28:01 1 0.03 0.00 0.03 0.00 0.00 99.93 19:28:01 2 0.52 0.00 0.02 0.00 0.00 99.47 19:28:01 3 0.02 0.00 0.03 0.00 0.00 99.95 19:29:01 all 0.15 0.00 0.04 0.00 0.00 99.81 19:29:01 0 0.00 0.00 0.02 0.00 0.00 99.98 19:29:01 1 0.05 0.00 0.05 0.00 0.00 99.90 19:29:01 2 0.53 0.00 0.05 0.00 0.00 99.42 19:29:01 3 0.02 0.00 0.03 0.00 0.00 99.95 Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.22 0.00 0.08 0.00 0.00 99.70 Average: 0 0.19 0.00 0.08 0.00 0.00 99.72 Average: 1 0.16 0.00 0.09 0.00 0.00 99.74 Average: 2 0.43 0.00 0.08 0.01 0.00 99.48 Average: 3 0.09 0.00 0.07 0.00 0.00 99.83