---> uname -a: Linux 8e1d4746f4b1 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-167 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-167@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 633 122 0 1081 1097 Swap: 1023 1 1022 ---> 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) 04:13:46 LINUX RESTART (4 CPU) 04:15:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 04:16:01 20.65 4.67 15.98 0.00 1448.22 1985.95 0.00 04:17:01 1.58 0.00 1.58 0.00 0.00 28.03 0.00 04:18:02 0.27 0.00 0.27 0.00 0.00 3.63 0.00 04:19:01 0.24 0.00 0.24 0.00 0.00 3.01 0.00 04:20:01 0.27 0.00 0.27 0.00 0.00 3.63 0.00 04:21:01 0.37 0.02 0.35 0.00 0.13 3.71 0.00 04:22:01 0.30 0.00 0.30 0.00 0.00 3.83 0.00 04:23:01 0.28 0.00 0.28 0.00 0.00 3.91 0.00 04:24:01 0.27 0.00 0.27 0.00 0.00 2.75 0.00 04:25:01 0.18 0.00 0.18 0.00 0.00 2.20 0.00 04:26:01 0.28 0.00 0.28 0.00 0.00 3.10 0.00 Average: 2.25 0.43 1.82 0.00 132.02 186.28 0.00 04:15:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:16:01 175748 0 540184 28.71 2620 1163004 1123728 38.35 415096 1129984 20 04:17:01 184104 0 531824 28.27 2620 1163008 1056260 36.05 410316 1128188 12 04:18:02 182948 0 532972 28.33 2620 1163016 1056452 36.05 411336 1128192 12 04:19:01 181212 0 534708 28.42 2620 1163016 1056524 36.06 417556 1123492 8 04:20:01 182136 0 533780 28.37 2620 1163020 1056356 36.05 416848 1123492 16 04:21:01 182808 0 533096 28.33 2620 1163032 1056260 36.05 416484 1123492 16 04:22:01 181036 0 534864 28.43 2620 1163036 1056524 36.06 416732 1124716 16 04:23:01 181028 0 534864 28.43 2620 1163044 1056536 36.06 416816 1124716 8 04:24:01 182932 0 532956 28.33 2620 1163048 1056260 36.05 415160 1124716 8 04:25:01 182332 0 533548 28.36 2620 1163056 1056332 36.05 406888 1133628 8 04:26:01 182600 0 533280 28.34 2620 1163056 1056260 36.05 406508 1133628 8 Average: 181717 0 534189 28.39 2620 1163031 1062499 36.26 413613 1127113 12 04:15:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 04:16:01 eth0 56.29 44.81 333.05 27.04 0.00 0.00 0.00 0.00 04:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:16:01 docker0 1.63 1.31 0.31 3.45 0.00 0.00 0.00 0.00 04:17:01 eth0 0.77 0.08 0.06 0.01 0.00 0.00 0.00 0.00 04:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:18:02 eth0 0.92 0.37 0.31 0.20 0.00 0.00 0.00 0.00 04:18:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:18:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:19:01 eth0 0.42 0.39 0.27 0.21 0.00 0.00 0.00 0.00 04:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:20:01 eth0 0.32 0.25 0.17 0.08 0.00 0.00 0.00 0.00 04:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:21:01 eth0 0.60 0.10 0.06 0.01 0.00 0.00 0.00 0.00 04:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:22:01 eth0 1.56 0.70 0.60 0.40 0.00 0.00 0.00 0.00 04:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:23:01 eth0 0.53 0.33 0.27 0.20 0.00 0.00 0.00 0.00 04:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:24:01 eth0 0.03 0.02 0.00 0.00 0.00 0.00 0.00 0.00 04:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:25:01 eth0 0.22 0.17 0.08 0.07 0.00 0.00 0.00 0.00 04:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:26:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 0.00 04:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 5.63 4.31 30.52 2.57 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 0.15 0.12 0.03 0.31 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) 04:13:46 LINUX RESTART (4 CPU) 04:15:01 CPU %user %nice %system %iowait %steal %idle 04:16:01 all 1.71 0.00 1.39 0.42 3.60 92.89 04:16:01 0 2.05 0.00 1.37 0.17 3.70 92.72 04:16:01 1 1.43 0.00 1.44 0.60 3.66 92.87 04:16:01 2 1.86 0.00 1.52 0.73 3.68 92.21 04:16:01 3 1.51 0.00 1.21 0.17 3.35 93.76 04:17:01 all 0.14 0.00 0.05 0.00 0.40 99.41 04:17:01 0 0.22 0.00 0.05 0.00 0.60 99.14 04:17:01 1 0.05 0.00 0.05 0.00 0.13 99.77 04:17:01 2 0.23 0.00 0.05 0.00 0.58 99.14 04:17:01 3 0.05 0.00 0.05 0.00 0.28 99.62 04:18:02 all 0.15 0.00 0.04 0.00 0.20 99.62 04:18:02 0 0.03 0.00 0.03 0.00 0.08 99.85 04:18:02 1 0.07 0.00 0.07 0.00 0.32 99.55 04:18:02 2 0.43 0.00 0.02 0.00 0.25 99.30 04:18:02 3 0.07 0.00 0.03 0.00 0.13 99.77 04:19:01 all 0.12 0.00 0.05 0.00 0.18 99.65 04:19:01 0 0.02 0.00 0.00 0.00 0.02 99.97 04:19:01 1 0.03 0.00 0.10 0.00 0.20 99.66 04:19:01 2 0.37 0.00 0.05 0.00 0.37 99.20 04:19:01 3 0.05 0.00 0.05 0.00 0.14 99.76 04:20:01 all 0.15 0.00 0.06 0.00 0.13 99.66 04:20:01 0 0.05 0.00 0.03 0.00 0.07 99.85 04:20:01 1 0.03 0.00 0.10 0.00 0.07 99.80 04:20:01 2 0.43 0.00 0.02 0.00 0.23 99.32 04:20:01 3 0.08 0.00 0.08 0.00 0.17 99.67 04:21:01 all 0.11 0.00 0.04 0.00 0.24 99.61 04:21:01 0 0.03 0.00 0.07 0.00 0.10 99.80 04:21:01 1 0.07 0.00 0.05 0.00 0.43 99.45 04:21:01 2 0.33 0.00 0.02 0.00 0.30 99.35 04:21:01 3 0.02 0.00 0.02 0.00 0.13 99.83 04:22:01 all 0.11 0.00 0.03 0.00 0.43 99.44 04:22:01 0 0.02 0.00 0.03 0.00 0.25 99.70 04:22:01 1 0.30 0.00 0.03 0.00 1.04 98.63 04:22:01 2 0.02 0.00 0.02 0.00 0.17 99.80 04:22:01 3 0.10 0.00 0.03 0.00 0.25 99.62 04:23:01 all 0.16 0.00 0.04 0.00 0.16 99.64 04:23:01 0 0.10 0.00 0.03 0.00 0.02 99.85 04:23:01 1 0.40 0.00 0.03 0.00 0.18 99.38 04:23:01 2 0.10 0.00 0.07 0.00 0.38 99.45 04:23:01 3 0.03 0.00 0.02 0.00 0.07 99.88 04:24:01 all 0.10 0.00 0.04 0.00 0.10 99.76 04:24:01 0 0.02 0.00 0.05 0.00 0.07 99.87 04:24:01 1 0.32 0.00 0.07 0.00 0.07 99.55 04:24:01 2 0.02 0.00 0.02 0.00 0.17 99.80 04:24:01 3 0.03 0.00 0.02 0.00 0.12 99.83 04:25:01 all 0.07 0.00 0.01 0.00 0.33 99.58 04:25:01 0 0.02 0.00 0.02 0.00 0.38 99.58 04:25:01 1 0.27 0.00 0.00 0.00 0.33 99.40 04:25:01 2 0.02 0.00 0.02 0.00 0.48 99.49 04:25:01 3 0.00 0.00 0.02 0.00 0.13 99.85 04:26:01 all 0.10 0.00 0.03 0.00 0.33 99.53 04:26:01 0 0.02 0.00 0.03 0.00 0.15 99.80 04:26:01 1 0.36 0.00 0.05 0.00 0.73 98.86 04:26:01 2 0.02 0.00 0.03 0.00 0.32 99.63 04:26:01 3 0.02 0.00 0.00 0.00 0.13 99.85 Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.27 0.00 0.16 0.04 0.56 98.98 Average: 0 0.23 0.00 0.16 0.02 0.49 99.10 Average: 1 0.30 0.00 0.18 0.05 0.65 98.81 Average: 2 0.35 0.00 0.17 0.07 0.63 98.79 Average: 3 0.18 0.00 0.14 0.02 0.45 99.22