---> uname -a: Linux 8e936a1fef12 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 599 65 0 1172 1133 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) 04/16/20 _x86_64_ (4 CPU) 02:42:31 LINUX RESTART 02:43:01 tps rtps wtps bread/s bwrtn/s 02:44:01 46.77 11.14 35.64 2542.88 3368.06 02:45:01 2.30 0.00 2.30 0.00 79.95 02:46:01 0.67 0.00 0.67 0.00 9.16 02:47:01 0.53 0.00 0.53 0.00 6.10 02:48:01 0.62 0.00 0.62 0.00 8.06 02:49:01 0.53 0.00 0.53 0.00 7.81 02:50:01 0.17 0.00 0.17 0.00 1.53 02:51:01 0.33 0.00 0.33 0.00 5.71 Average: 6.50 1.40 5.11 318.68 436.90 02:43:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:44:01 115380 1766924 93.87 2620 1229416 918868 31.35 433432 1171012 20 02:45:01 121328 1760976 93.55 2620 1229420 889412 30.35 428768 1170708 20 02:46:01 121228 1761076 93.56 2620 1229432 889436 30.35 428784 1170708 8 02:47:01 120624 1761680 93.59 2620 1229432 889580 30.35 429752 1170708 8 02:48:01 121124 1761180 93.57 2620 1229440 889560 30.35 429152 1170708 16 02:49:01 121048 1761256 93.57 2620 1229444 889560 30.35 429204 1170708 8 02:50:01 121516 1760788 93.54 2620 1229448 889476 30.35 428760 1170704 16 02:51:01 125208 1757096 93.35 2620 1229452 889476 30.35 424524 1170704 8 Average: 120932 1761372 93.58 2620 1229436 893171 30.47 429047 1170745 13 02:43:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:44:01 eth0 330.74 199.88 754.72 77.45 0.00 0.00 0.00 02:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:44:01 docker0 1.30 1.00 0.26 2.94 0.00 0.00 0.00 02:45:01 eth0 0.38 0.05 0.02 0.00 0.00 0.00 0.00 02:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:01 eth0 1.05 0.18 0.20 0.01 0.00 0.00 0.00 02:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:47:01 eth0 0.77 0.53 0.52 0.39 0.00 0.00 0.00 02:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:48:01 eth0 0.25 0.20 0.08 0.05 0.00 0.00 0.00 02:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:49:01 eth0 0.14 0.10 0.07 0.04 0.00 0.00 0.00 02:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:50:01 eth0 0.12 0.10 0.01 0.01 0.00 0.00 0.00 02:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:51:01 eth0 0.07 0.07 0.01 0.01 0.00 0.00 0.00 02:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 41.80 25.20 94.70 9.77 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.16 0.13 0.03 0.37 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) 04/16/20 _x86_64_ (4 CPU) 02:42:31 LINUX RESTART 02:43:01 CPU %user %nice %system %iowait %steal %idle 02:44:01 all 9.45 0.00 3.10 0.80 0.01 86.63 02:44:01 0 8.99 0.00 3.02 0.08 0.02 87.89 02:44:01 1 8.79 0.00 2.88 0.35 0.02 87.96 02:44:01 2 9.38 0.00 3.35 0.15 0.02 87.10 02:44:01 3 10.66 0.00 3.11 2.62 0.02 83.60 02:45:01 all 0.20 0.00 0.09 0.00 0.00 99.71 02:45:01 0 0.08 0.00 0.07 0.00 0.00 99.85 02:45:01 1 0.18 0.00 0.05 0.00 0.00 99.77 02:45:01 2 0.08 0.00 0.15 0.00 0.00 99.77 02:45:01 3 0.43 0.00 0.07 0.00 0.00 99.50 02:46:01 all 0.17 0.00 0.05 0.00 0.00 99.77 02:46:01 0 0.02 0.00 0.03 0.00 0.00 99.95 02:46:01 1 0.03 0.00 0.03 0.00 0.00 99.93 02:46:01 2 0.07 0.00 0.05 0.00 0.00 99.88 02:46:01 3 0.55 0.00 0.10 0.00 0.00 99.35 02:47:01 all 0.08 0.00 0.06 0.00 0.00 99.86 02:47:01 0 0.07 0.00 0.07 0.00 0.02 99.85 02:47:01 1 0.05 0.00 0.07 0.00 0.00 99.88 02:47:01 2 0.07 0.00 0.08 0.00 0.00 99.85 02:47:01 3 0.15 0.00 0.07 0.00 0.00 99.78 02:48:01 all 0.15 0.00 0.05 0.00 0.00 99.80 02:48:01 0 0.03 0.00 0.03 0.00 0.00 99.93 02:48:01 1 0.07 0.00 0.03 0.00 0.00 99.90 02:48:01 2 0.10 0.00 0.07 0.00 0.02 99.82 02:48:01 3 0.40 0.00 0.07 0.00 0.02 99.52 02:49:01 all 0.17 0.00 0.04 0.00 0.00 99.78 02:49:01 0 0.03 0.00 0.02 0.00 0.00 99.95 02:49:01 1 0.05 0.00 0.05 0.00 0.00 99.90 02:49:01 2 0.44 0.00 0.03 0.00 0.00 99.53 02:49:01 3 0.15 0.00 0.03 0.00 0.00 99.81 02:50:01 all 0.18 0.00 0.05 0.00 0.00 99.77 02:50:01 0 0.07 0.00 0.05 0.00 0.00 99.88 02:50:01 1 0.05 0.00 0.03 0.00 0.00 99.92 02:50:01 2 0.57 0.00 0.07 0.00 0.00 99.37 02:50:01 3 0.05 0.00 0.03 0.00 0.00 99.92 02:51:01 all 0.17 0.00 0.06 0.00 0.00 99.77 02:51:01 0 0.02 0.00 0.05 0.00 0.00 99.93 02:51:01 1 0.05 0.00 0.05 0.00 0.00 99.90 02:51:01 2 0.55 0.00 0.08 0.00 0.00 99.37 02:51:01 3 0.07 0.00 0.07 0.00 0.00 99.87 Average: all 1.32 0.00 0.44 0.10 0.00 98.14 Average: 0 1.16 0.00 0.42 0.01 0.00 98.41 Average: 1 1.16 0.00 0.40 0.04 0.00 98.40 Average: 2 1.40 0.00 0.48 0.02 0.00 98.09 Average: 3 1.55 0.00 0.44 0.33 0.00 97.67