---> uname -a: Linux c71dc823e0d8 3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018 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 L1tf: Mitigation; PTE Inversion; VMX SMT disabled, L1D conditional cache flushes Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline 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 6.4G 43.6G 13% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 919.1M 0 919.1M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 6.4G 43.6G 13% /etc/resolv.conf /dev/vda1 50.0G 6.4G 43.6G 13% /etc/hostname /dev/vda1 50.0G 6.4G 43.6G 13% /etc/hosts /dev/vda1 50.0G 6.4G 43.6G 13% /var/log/sa /dev/vda1 50.0G 6.4G 43.6G 13% /w/workspace/gexfoundry_device-mqtt-go_PR-139 /dev/vda1 50.0G 6.4G 43.6G 13% /w/workspace/gexfoundry_device-mqtt-go_PR-139@tmp ---> free -m: total used free shared buff/cache available Mem: 1838 602 67 0 1167 1130 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 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 04/20/20 _x86_64_ (4 CPU) 23:39:51 LINUX RESTART 23:41:01 tps rtps wtps bread/s bwrtn/s 23:42:01 2.60 0.00 2.60 0.00 92.06 23:43:01 0.63 0.00 0.63 0.00 8.89 23:44:01 0.62 0.00 0.62 0.00 7.00 23:45:01 0.23 0.00 0.23 0.00 3.85 23:46:01 0.30 0.00 0.30 0.00 5.18 23:47:01 0.28 0.00 0.28 0.00 3.00 23:48:01 0.28 0.00 0.28 0.00 3.07 23:49:01 0.32 0.00 0.32 0.00 5.26 Average: 0.66 0.00 0.66 0.00 16.04 23:41:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 23:42:01 109532 1772772 94.18 2620 1238080 909020 31.02 430988 1179124 8 23:43:01 107916 1774388 94.27 2620 1238084 909260 31.02 432784 1178824 8 23:44:01 109336 1772968 94.19 2620 1238096 909020 31.02 431416 1178824 8 23:45:01 108860 1773444 94.22 2620 1238096 909128 31.02 432004 1178820 8 23:46:01 108352 1773952 94.24 2620 1238104 909236 31.02 432624 1178820 8 23:47:01 109764 1772540 94.17 2620 1238108 909020 31.02 431476 1178816 8 23:48:01 112852 1769452 94.00 2620 1238112 909020 31.02 428072 1178816 8 23:49:01 112004 1770300 94.05 2620 1238116 909188 31.02 428972 1178816 8 Average: 109827 1772477 94.17 2620 1238100 909112 31.02 431042 1178858 8 23:41:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 23:42:01 eth0 1.20 0.08 0.10 0.01 0.00 0.00 0.00 23:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:43:01 eth0 1.47 0.77 0.71 0.38 0.00 0.00 0.00 23:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:44:01 eth0 0.10 0.08 0.01 0.04 0.00 0.00 0.00 23:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:45:01 eth0 2.13 0.67 0.82 0.49 0.00 0.00 0.00 23:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:46:01 eth0 1.75 1.08 0.95 0.66 0.00 0.00 0.00 23:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:47:01 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 23:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:48:01 eth0 0.15 0.07 0.01 0.01 0.00 0.00 0.00 23:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:49:01 eth0 1.35 0.43 0.34 0.21 0.00 0.00 0.00 23:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 1.03 0.41 0.37 0.22 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 04/20/20 _x86_64_ (4 CPU) 23:39:51 LINUX RESTART 23:41:01 CPU %user %nice %system %iowait %steal %idle 23:42:01 all 0.20 0.00 0.06 0.00 0.00 99.74 23:42:01 0 0.12 0.00 0.08 0.00 0.00 99.80 23:42:01 1 0.03 0.00 0.05 0.00 0.00 99.92 23:42:01 2 0.22 0.00 0.07 0.00 0.00 99.72 23:42:01 3 0.42 0.00 0.07 0.00 0.00 99.52 23:43:01 all 0.21 0.00 0.05 0.00 0.00 99.73 23:43:01 0 0.15 0.00 0.07 0.00 0.00 99.78 23:43:01 1 0.08 0.00 0.05 0.00 0.00 99.87 23:43:01 2 0.55 0.00 0.05 0.00 0.00 99.40 23:43:01 3 0.05 0.00 0.03 0.00 0.00 99.92 23:44:01 all 0.16 0.00 0.05 0.00 0.00 99.78 23:44:01 0 0.02 0.00 0.05 0.00 0.00 99.93 23:44:01 1 0.07 0.00 0.07 0.00 0.00 99.87 23:44:01 2 0.53 0.00 0.07 0.00 0.02 99.38 23:44:01 3 0.05 0.00 0.05 0.00 0.00 99.90 23:45:01 all 0.15 0.00 0.07 0.00 0.00 99.77 23:45:01 0 0.08 0.00 0.05 0.00 0.00 99.87 23:45:01 1 0.08 0.00 0.05 0.00 0.00 99.87 23:45:01 2 0.10 0.00 0.03 0.00 0.00 99.87 23:45:01 3 0.33 0.00 0.12 0.00 0.00 99.55 23:46:01 all 0.09 0.00 0.07 0.00 0.00 99.84 23:46:01 0 0.15 0.00 0.10 0.00 0.00 99.75 23:46:01 1 0.07 0.00 0.07 0.00 0.00 99.87 23:46:01 2 0.03 0.00 0.05 0.00 0.00 99.92 23:46:01 3 0.12 0.00 0.08 0.00 0.00 99.80 23:47:01 all 0.06 0.00 0.05 0.00 0.00 99.89 23:47:01 0 0.05 0.00 0.05 0.00 0.00 99.90 23:47:01 1 0.05 0.00 0.05 0.00 0.00 99.90 23:47:01 2 0.05 0.00 0.03 0.00 0.00 99.92 23:47:01 3 0.08 0.00 0.05 0.00 0.00 99.87 23:48:01 all 0.11 0.00 0.05 0.00 0.00 99.84 23:48:01 0 0.05 0.00 0.08 0.00 0.00 99.87 23:48:01 1 0.32 0.00 0.07 0.00 0.00 99.62 23:48:01 2 0.02 0.00 0.03 0.00 0.00 99.95 23:48:01 3 0.07 0.00 0.05 0.00 0.00 99.88 23:49:01 all 0.18 0.00 0.05 0.00 0.00 99.77 23:49:01 0 0.05 0.00 0.03 0.00 0.00 99.92 23:49:01 1 0.53 0.00 0.03 0.00 0.02 99.42 23:49:01 2 0.07 0.00 0.05 0.00 0.00 99.88 23:49:01 3 0.05 0.00 0.05 0.00 0.00 99.90 Average: all 0.15 0.00 0.06 0.00 0.00 99.80 Average: 0 0.08 0.00 0.06 0.00 0.00 99.85 Average: 1 0.15 0.00 0.05 0.00 0.00 99.79 Average: 2 0.20 0.00 0.05 0.00 0.00 99.75 Average: 3 0.15 0.00 0.06 0.00 0.00 99.79