---> uname -a: Linux 2bc04d0ac8b1 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-168 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-168@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 606 126 0 1104 1123 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) 09/11/20 _x86_64_ (4 CPU) 19:18:26 LINUX RESTART (4 CPU) 19:19:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:01 134.13 48.67 85.45 0.00 7673.46 40607.01 0.00 19:21:01 2.20 0.00 2.20 0.00 0.00 44.86 0.00 19:22:01 0.37 0.00 0.37 0.00 0.00 5.83 0.00 19:23:01 0.20 0.00 0.20 0.00 0.00 1.75 0.00 19:24:01 0.22 0.00 0.22 0.00 0.00 3.81 0.00 19:25:01 0.35 0.00 0.35 0.00 0.00 4.63 0.00 19:26:01 0.30 0.02 0.28 0.00 0.13 3.36 0.00 Average: 19.44 6.87 12.57 0.00 1082.43 5737.20 0.00 19:19:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:01 182164 0 531784 28.26 2620 1164988 1167532 39.85 378620 1159528 120 19:21:01 186124 0 527636 28.04 2620 1165176 1141340 38.95 377376 1157968 16 19:22:01 192728 0 521024 27.69 2620 1165184 1079660 36.85 374356 1155256 12 19:23:01 190856 0 522896 27.79 2620 1165184 1079756 36.85 376516 1154736 20 19:24:01 190656 0 523088 27.80 2620 1165192 1079852 36.85 379144 1152660 8 19:25:01 190400 0 523336 27.81 2620 1165200 1079980 36.86 385020 1147360 8 19:26:01 188752 0 524976 27.90 2620 1165208 1080056 36.86 412260 1121632 16 Average: 188811 0 524963 27.90 2620 1165162 1101168 37.58 383327 1149877 29 19:19:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:01 eth0 305.46 207.42 1052.40 93.68 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 1.79 1.57 0.33 3.67 0.00 0.00 0.00 0.00 19:21:01 eth0 2.40 1.25 3.13 0.41 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 1.38 0.37 0.35 0.23 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 1.65 0.55 0.61 0.39 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 1.12 0.35 0.32 0.20 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 1.86 0.67 0.74 0.46 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 1.43 0.63 0.64 0.34 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 Average: eth0 44.50 29.80 149.28 13.51 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 0.25 0.22 0.05 0.52 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) 09/11/20 _x86_64_ (4 CPU) 19:18:26 LINUX RESTART (4 CPU) 19:19:02 CPU %user %nice %system %iowait %steal %idle 19:20:01 all 12.47 0.00 7.91 4.93 16.06 58.63 19:20:01 0 10.97 0.00 7.34 6.11 18.41 57.17 19:20:01 1 10.55 0.00 8.33 4.61 16.22 60.29 19:20:01 2 11.24 0.00 6.36 4.56 15.29 62.54 19:20:01 3 17.35 0.00 9.66 4.42 14.27 54.31 19:21:01 all 0.17 0.00 0.05 0.00 0.39 99.39 19:21:01 0 0.32 0.00 0.05 0.00 0.37 99.27 19:21:01 1 0.07 0.00 0.05 0.00 0.38 99.50 19:21:01 2 0.13 0.00 0.07 0.00 0.23 99.57 19:21:01 3 0.15 0.00 0.05 0.00 0.56 99.24 19:22:01 all 0.12 0.00 0.03 0.00 0.29 99.56 19:22:01 0 0.05 0.00 0.03 0.00 0.32 99.60 19:22:01 1 0.05 0.00 0.03 0.00 0.28 99.63 19:22:01 2 0.05 0.00 0.03 0.00 0.28 99.63 19:22:01 3 0.33 0.00 0.03 0.00 0.27 99.37 19:23:01 all 0.09 0.00 0.03 0.00 0.40 99.48 19:23:01 0 0.02 0.00 0.02 0.00 0.28 99.68 19:23:01 1 0.02 0.00 0.02 0.00 0.32 99.65 19:23:01 2 0.05 0.00 0.05 0.00 0.66 99.24 19:23:01 3 0.28 0.00 0.03 0.00 0.35 99.33 19:24:01 all 0.10 0.00 0.03 0.00 0.42 99.45 19:24:01 0 0.08 0.00 0.03 0.00 0.18 99.70 19:24:01 1 0.03 0.00 0.02 0.00 0.60 99.35 19:24:01 2 0.03 0.00 0.05 0.00 0.60 99.32 19:24:01 3 0.27 0.00 0.03 0.00 0.28 99.42 19:25:01 all 0.07 0.00 0.04 0.00 0.60 99.29 19:25:01 0 0.02 0.00 0.05 0.00 0.20 99.73 19:25:01 1 0.02 0.00 0.02 0.00 0.61 99.35 19:25:01 2 0.07 0.00 0.05 0.00 1.04 98.84 19:25:01 3 0.18 0.00 0.03 0.00 0.53 99.25 19:26:01 all 0.10 0.00 0.06 0.00 0.94 98.90 19:26:01 0 0.05 0.00 0.17 0.00 0.51 99.27 19:26:01 1 0.21 0.00 0.03 0.00 1.07 98.68 19:26:01 2 0.05 0.00 0.02 0.00 0.61 99.32 19:26:01 3 0.07 0.00 0.03 0.00 1.56 98.34 Average: all 1.86 0.00 1.15 0.70 2.70 93.59 Average: 0 1.64 0.00 1.10 0.87 2.89 93.51 Average: 1 1.57 0.00 1.22 0.66 2.79 93.76 Average: 2 1.66 0.00 0.94 0.65 2.67 94.08 Average: 3 2.56 0.00 1.36 0.61 2.47 93.00