---> uname -a: Linux 8b334e2d8a8c 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 7.2G 42.8G 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 7.2G 42.8G 14% /etc/resolv.conf /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hostname /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hosts /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-150 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-150@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 654 119 0 1063 1077 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) 06/10/20 _x86_64_ (4 CPU) 14:19:56 LINUX RESTART 14:21:01 tps rtps wtps bread/s bwrtn/s 14:22:01 2.03 0.00 2.03 0.00 42.24 14:23:01 0.35 0.00 0.35 0.00 4.75 14:24:01 0.20 0.00 0.20 0.00 2.32 14:25:01 0.32 0.00 0.32 0.00 3.76 14:26:01 0.32 0.00 0.32 0.00 4.16 14:27:01 0.33 0.02 0.32 0.13 3.38 14:28:01 0.28 0.00 0.28 0.00 2.75 14:29:01 0.25 0.00 0.25 0.00 1.95 14:30:01 0.25 0.00 0.25 0.00 3.76 14:31:01 59.48 45.33 14.16 4690.35 7776.28 Average: 6.39 4.54 1.85 469.60 785.44 14:21:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 14:22:01 172036 1709520 90.86 2620 1143432 1073404 36.63 406716 1143760 20 14:23:01 170452 1711104 90.94 2620 1143416 1071348 36.56 409080 1142916 8 14:24:01 168108 1713448 91.07 2620 1143424 1071532 36.57 411768 1142808 12 14:25:01 164772 1716784 91.24 2620 1143424 1071604 36.57 415264 1142212 8 14:26:01 165856 1715700 91.19 2620 1143428 1071548 36.57 421840 1135116 8 14:27:01 166868 1714688 91.13 2620 1143440 1071476 36.57 421460 1135116 8 14:28:01 166736 1714820 91.14 2620 1143444 1071476 36.57 420388 1136192 8 14:29:01 166144 1715412 91.17 2620 1143452 1071476 36.57 420524 1136188 8 14:30:01 166464 1715092 91.15 2620 1143456 1071476 36.57 420404 1136188 8 14:31:01 70444 1811112 96.26 2620 1136468 1495648 51.04 519076 1105496 72056 Average: 157788 1723768 91.61 2620 1142738 1114099 38.02 426652 1135599 7214 14:21:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 14:22:01 eth0 0.12 0.10 0.01 0.01 0.00 0.00 0.00 14:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:23:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 14:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:24:01 eth0 4.66 2.18 3.26 0.32 0.00 0.00 0.00 14:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:25:01 eth0 0.53 0.47 0.27 0.21 0.00 0.00 0.00 14:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:26:01 eth0 0.33 0.23 0.14 0.07 0.00 0.00 0.00 14:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:27:01 eth0 0.07 0.07 0.01 0.01 0.00 0.00 0.00 14:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:28:01 eth0 0.03 0.02 0.00 0.00 0.00 0.00 0.00 14:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:29:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 14:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:30:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 14:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:31:01 eth0 96.34 64.34 2326.48 9.58 0.00 0.00 0.00 14:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:31:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 10.25 6.77 233.29 1.02 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 3.10.0-1127.el7.x86_64 (centos-7-docker-5eb134fb-50d3-af0a-1802-9f6851a35141.vexxhost.lo) 06/10/20 _x86_64_ (4 CPU) 14:19:56 LINUX RESTART 14:21:01 CPU %user %nice %system %iowait %steal %idle 14:22:01 all 0.17 0.00 0.04 0.00 0.00 99.78 14:22:01 0 0.08 0.00 0.07 0.00 0.00 99.85 14:22:01 1 0.03 0.00 0.02 0.00 0.00 99.95 14:22:01 2 0.52 0.00 0.02 0.00 0.00 99.47 14:22:01 3 0.05 0.00 0.03 0.00 0.00 99.92 14:23:01 all 0.15 0.00 0.03 0.00 0.00 99.82 14:23:01 0 0.05 0.00 0.03 0.00 0.00 99.92 14:23:01 1 0.47 0.00 0.05 0.00 0.00 99.48 14:23:01 2 0.05 0.00 0.05 0.00 0.00 99.90 14:23:01 3 0.03 0.00 0.02 0.00 0.00 99.95 14:24:01 all 0.17 0.00 0.03 0.00 0.00 99.80 14:24:01 0 0.07 0.00 0.03 0.00 0.00 99.90 14:24:01 1 0.53 0.00 0.02 0.00 0.00 99.45 14:24:01 2 0.03 0.00 0.05 0.00 0.00 99.92 14:24:01 3 0.03 0.00 0.02 0.00 0.00 99.95 14:25:01 all 0.16 0.00 0.03 0.00 0.00 99.80 14:25:01 0 0.03 0.00 0.03 0.00 0.00 99.93 14:25:01 1 0.53 0.00 0.03 0.00 0.00 99.43 14:25:01 2 0.07 0.00 0.05 0.00 0.00 99.88 14:25:01 3 0.03 0.00 0.02 0.00 0.00 99.95 14:26:01 all 0.09 0.00 0.05 0.00 0.00 99.86 14:26:01 0 0.05 0.00 0.03 0.00 0.00 99.92 14:26:01 1 0.28 0.00 0.07 0.00 0.00 99.65 14:26:01 2 0.02 0.00 0.05 0.00 0.00 99.93 14:26:01 3 0.02 0.00 0.03 0.00 0.00 99.95 14:27:01 all 0.05 0.00 0.03 0.00 0.00 99.92 14:27:01 0 0.02 0.00 0.00 0.00 0.00 99.98 14:27:01 1 0.17 0.00 0.05 0.00 0.00 99.78 14:27:01 2 0.02 0.00 0.03 0.00 0.00 99.95 14:27:01 3 0.00 0.00 0.03 0.00 0.00 99.97 14:28:01 all 0.15 0.00 0.03 0.00 0.00 99.82 14:28:01 0 0.05 0.00 0.07 0.00 0.02 99.87 14:28:01 1 0.52 0.00 0.03 0.00 0.00 99.45 14:28:01 2 0.02 0.00 0.02 0.00 0.00 99.97 14:28:01 3 0.03 0.00 0.02 0.00 0.00 99.95 14:29:01 all 0.15 0.00 0.02 0.00 0.00 99.83 14:29:01 0 0.03 0.00 0.03 0.00 0.00 99.93 14:29:01 1 0.53 0.00 0.02 0.00 0.00 99.45 14:29:01 2 0.00 0.00 0.02 0.00 0.00 99.98 14:29:01 3 0.02 0.00 0.00 0.00 0.00 99.98 14:30:01 all 0.15 0.00 0.03 0.00 0.00 99.82 14:30:01 0 0.05 0.00 0.03 0.00 0.00 99.92 14:30:01 1 0.50 0.00 0.02 0.00 0.00 99.48 14:30:01 2 0.05 0.00 0.05 0.00 0.00 99.90 14:30:01 3 0.02 0.00 0.02 0.00 0.00 99.97 14:31:01 all 3.17 0.00 1.78 1.03 0.00 94.02 14:31:01 0 3.72 0.00 1.95 0.68 0.00 93.64 14:31:01 1 3.52 0.00 1.95 2.45 0.00 92.07 14:31:01 2 2.95 0.00 1.54 0.90 0.00 94.61 14:31:01 3 2.49 0.00 1.70 0.05 0.02 95.74 Average: all 0.44 0.00 0.21 0.10 0.00 99.25 Average: 0 0.42 0.00 0.23 0.07 0.00 99.29 Average: 1 0.71 0.00 0.23 0.25 0.00 98.82 Average: 2 0.37 0.00 0.19 0.09 0.00 99.35 Average: 3 0.27 0.00 0.19 0.00 0.00 99.53