---> uname -a: Linux 0aee3819ae42 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: 2933.442 BogoMIPS: 5866.88 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% /w/workspace/gexfoundry_device-mqtt-go_PR-168@tmp /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 ---> free -m: total used free shared buff/cache available Mem: 1837 649 130 0 1056 1080 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) 04:44:48 LINUX RESTART (4 CPU) 04:46:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 04:47:01 3.58 0.00 3.58 0.00 0.00 112.47 0.00 04:48:01 0.35 0.00 0.35 0.00 0.00 4.96 0.00 04:49:01 0.30 0.00 0.30 0.00 0.00 3.30 0.00 04:50:01 0.27 0.00 0.27 0.00 0.00 3.35 0.00 04:51:01 0.27 0.00 0.27 0.00 0.00 4.18 0.00 Average: 0.95 0.00 0.95 0.00 0.00 25.66 0.00 04:46:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:47:01 165156 0 576036 30.61 2620 1137744 1113580 38.00 423120 1133528 20 04:48:01 166616 0 574572 30.54 2620 1137748 1104156 37.68 423556 1131916 16 04:49:01 166372 0 574808 30.55 2620 1137756 1104180 37.68 423764 1131916 8 04:50:01 165224 0 575956 30.61 2620 1137756 1104204 37.68 428840 1128384 8 04:51:01 167708 0 573464 30.48 2620 1137764 1091972 37.27 429320 1125540 8 Average: 166215 0 574967 30.56 2620 1137754 1103618 37.66 425720 1130257 12 04:46:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 04:47:01 eth0 5.30 2.16 3.54 0.50 0.00 0.00 0.00 0.00 04:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:48:01 eth0 2.36 0.92 0.92 0.59 0.00 0.00 0.00 0.00 04:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:49:01 eth0 2.47 0.32 0.44 0.23 0.00 0.00 0.00 0.00 04:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:50:01 eth0 1.68 0.53 0.61 0.39 0.00 0.00 0.00 0.00 04:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:51:01 eth0 2.75 0.77 0.81 0.47 0.00 0.00 0.00 0.00 04:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.91 0.94 1.27 0.44 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 0.00 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) 09/08/20 _x86_64_ (4 CPU) 04:44:48 LINUX RESTART (4 CPU) 04:46:01 CPU %user %nice %system %iowait %steal %idle 04:47:01 all 0.20 0.00 0.05 0.00 0.00 99.75 04:47:01 0 0.22 0.00 0.05 0.00 0.00 99.73 04:47:01 1 0.05 0.00 0.05 0.00 0.00 99.90 04:47:01 2 0.50 0.00 0.05 0.00 0.00 99.45 04:47:01 3 0.05 0.00 0.03 0.00 0.00 99.92 04:48:01 all 0.21 0.00 0.04 0.00 0.00 99.75 04:48:01 0 0.13 0.00 0.08 0.00 0.00 99.78 04:48:01 1 0.03 0.00 0.03 0.00 0.00 99.93 04:48:01 2 0.62 0.00 0.03 0.00 0.00 99.35 04:48:01 3 0.05 0.00 0.00 0.00 0.00 99.95 04:49:01 all 0.15 0.00 0.03 0.00 0.00 99.82 04:49:01 0 0.07 0.00 0.05 0.00 0.00 99.88 04:49:01 1 0.02 0.00 0.02 0.00 0.00 99.97 04:49:01 2 0.50 0.00 0.03 0.00 0.00 99.47 04:49:01 3 0.02 0.00 0.03 0.00 0.00 99.95 04:50:01 all 0.08 0.00 0.05 0.00 0.00 99.87 04:50:01 0 0.05 0.00 0.05 0.00 0.02 99.88 04:50:01 1 0.05 0.00 0.02 0.00 0.00 99.93 04:50:01 2 0.18 0.00 0.12 0.00 0.00 99.70 04:50:01 3 0.02 0.00 0.02 0.00 0.00 99.97 04:51:01 all 0.10 0.00 0.06 0.00 0.00 99.84 04:51:01 0 0.05 0.00 0.02 0.00 0.00 99.93 04:51:01 1 0.05 0.00 0.05 0.00 0.00 99.90 04:51:01 2 0.25 0.00 0.15 0.00 0.00 99.60 04:51:01 3 0.05 0.00 0.02 0.00 0.00 99.93 Average: all 0.15 0.00 0.05 0.00 0.00 99.81 Average: 0 0.10 0.00 0.05 0.00 0.00 99.84 Average: 1 0.04 0.00 0.03 0.00 0.00 99.93 Average: 2 0.41 0.00 0.08 0.00 0.00 99.51 Average: 3 0.04 0.00 0.02 0.00 0.00 99.94