---> uname -a: Linux 75a8f169d4d0 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-170 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-170@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 663 131 0 1042 1065 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) 09/17/20 _x86_64_ (4 CPU) 08:59:00 LINUX RESTART (4 CPU) 09:00:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 09:01:01 6.01 2.07 3.94 0.00 108.62 85.27 0.00 09:02:01 0.65 0.08 0.57 0.00 1.60 10.21 0.00 09:03:01 0.27 0.00 0.27 0.00 0.00 3.25 0.00 09:04:01 0.18 0.00 0.18 0.00 0.00 2.15 0.00 09:05:01 0.48 0.00 0.48 0.00 0.00 8.58 0.00 09:06:01 0.27 0.02 0.25 0.00 0.13 3.20 0.00 09:07:01 0.25 0.00 0.25 0.00 0.00 3.11 0.00 09:08:01 0.20 0.00 0.20 0.00 0.00 1.90 0.00 09:09:01 0.27 0.00 0.27 0.00 0.00 4.08 0.00 09:10:01 0.27 0.00 0.27 0.00 0.00 4.00 0.00 09:11:02 0.35 0.00 0.35 0.00 0.00 4.91 0.00 09:12:01 0.30 0.00 0.30 0.00 0.00 4.54 0.00 Average: 0.78 0.18 0.61 0.00 9.07 11.18 0.00 09:00:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:01:01 161888 0 586156 31.15 2620 1130892 1101884 37.61 454432 1105848 20 09:02:01 166128 0 581772 30.92 2620 1131036 1073512 36.64 452600 1104312 20 09:03:01 165984 0 581912 30.93 2620 1131040 1073572 36.64 453040 1104308 20 09:04:01 164980 0 582916 30.98 2620 1131040 1073584 36.64 458832 1099728 20 09:05:01 164844 0 583044 30.99 2620 1131048 1073596 36.64 461532 1097156 12 09:06:01 166072 0 581808 30.92 2620 1131056 1073404 36.63 460548 1097156 12 09:07:01 165160 0 582716 30.97 2620 1131060 1073720 36.64 459308 1099276 8 09:08:01 164856 0 583016 30.99 2620 1131064 1073756 36.65 459588 1099276 8 09:09:01 165052 0 582812 30.98 2620 1131072 1073720 36.64 459228 1099280 8 09:10:01 165060 0 582800 30.97 2620 1131076 1073708 36.64 451464 1107132 8 09:11:02 165068 0 582792 30.97 2620 1131076 1073696 36.64 451280 1107132 8 09:12:01 164332 0 583520 31.01 2620 1131084 1073840 36.65 451932 1107132 8 Average: 164952 0 582939 30.98 2620 1131045 1075999 36.72 456149 1102311 13 09:00:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:01:01 eth0 24.19 19.72 21.00 28.78 0.00 0.00 0.00 0.00 09:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:01:01 docker0 1.90 1.86 0.35 3.65 0.00 0.00 0.00 0.00 09:02:01 eth0 2.96 0.40 0.49 0.18 0.00 0.00 0.00 0.00 09:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:01 eth0 4.43 0.50 0.85 0.39 0.00 0.00 0.00 0.00 09:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 eth0 2.12 0.58 0.67 0.43 0.00 0.00 0.00 0.00 09:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:05:01 eth0 2.10 0.68 0.76 0.46 0.00 0.00 0.00 0.00 09:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:06:01 eth0 2.65 0.00 0.24 0.00 0.00 0.00 0.00 0.00 09:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:07:01 eth0 2.90 1.00 1.19 0.76 0.00 0.00 0.00 0.00 09:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:08:01 eth0 2.13 0.62 0.64 0.44 0.00 0.00 0.00 0.00 09:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:09:01 eth0 1.08 0.55 0.54 0.36 0.00 0.00 0.00 0.00 09:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:10:01 eth0 1.60 0.22 0.20 0.10 0.00 0.00 0.00 0.00 09:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:11:02 eth0 1.53 0.42 0.42 0.21 0.00 0.00 0.00 0.00 09:11:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:11:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:12:01 eth0 1.37 0.36 0.36 0.21 0.00 0.00 0.00 0.00 09:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 4.07 2.07 2.26 2.66 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 0.16 0.15 0.03 0.30 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) 09/17/20 _x86_64_ (4 CPU) 08:59:00 LINUX RESTART (4 CPU) 09:00:02 CPU %user %nice %system %iowait %steal %idle 09:01:01 all 1.02 0.00 0.44 0.04 0.00 98.50 09:01:01 0 1.19 0.00 0.54 0.02 0.00 98.25 09:01:01 1 0.92 0.00 0.46 0.02 0.00 98.61 09:01:01 2 0.90 0.00 0.36 0.00 0.00 98.74 09:01:01 3 1.09 0.00 0.41 0.12 0.00 98.39 09:02:01 all 0.15 0.00 0.05 0.01 0.00 99.79 09:02:01 0 0.02 0.00 0.05 0.00 0.00 99.93 09:02:01 1 0.03 0.00 0.05 0.02 0.00 99.90 09:02:01 2 0.05 0.00 0.05 0.02 0.00 99.88 09:02:01 3 0.52 0.00 0.03 0.00 0.00 99.45 09:03:01 all 0.15 0.00 0.03 0.00 0.00 99.82 09:03:01 0 0.00 0.00 0.02 0.00 0.00 99.98 09:03:01 1 0.07 0.00 0.05 0.00 0.00 99.88 09:03:01 2 0.05 0.00 0.03 0.00 0.00 99.92 09:03:01 3 0.50 0.00 0.02 0.00 0.00 99.48 09:04:01 all 0.15 0.00 0.04 0.00 0.00 99.81 09:04:01 0 0.02 0.00 0.02 0.00 0.00 99.97 09:04:01 1 0.12 0.00 0.03 0.00 0.02 99.83 09:04:01 2 0.02 0.00 0.05 0.00 0.00 99.93 09:04:01 3 0.43 0.00 0.05 0.00 0.00 99.52 09:05:01 all 0.17 0.00 0.06 0.00 0.00 99.76 09:05:01 0 0.05 0.00 0.02 0.00 0.00 99.93 09:05:01 1 0.32 0.00 0.03 0.00 0.00 99.65 09:05:01 2 0.05 0.00 0.17 0.00 0.02 99.77 09:05:01 3 0.27 0.00 0.03 0.00 0.00 99.70 09:06:01 all 0.15 0.00 0.03 0.00 0.00 99.83 09:06:01 0 0.00 0.00 0.03 0.00 0.00 99.97 09:06:01 1 0.55 0.00 0.03 0.00 0.00 99.42 09:06:01 2 0.03 0.00 0.03 0.00 0.00 99.93 09:06:01 3 0.00 0.00 0.02 0.00 0.00 99.98 09:07:01 all 0.25 0.00 0.04 0.00 0.00 99.70 09:07:01 0 0.33 0.00 0.03 0.00 0.00 99.63 09:07:01 1 0.55 0.00 0.03 0.00 0.00 99.42 09:07:01 2 0.05 0.00 0.07 0.00 0.00 99.88 09:07:01 3 0.07 0.00 0.03 0.00 0.02 99.88 09:08:01 all 0.16 0.00 0.02 0.00 0.00 99.82 09:08:01 0 0.02 0.00 0.00 0.00 0.00 99.98 09:08:01 1 0.53 0.00 0.02 0.00 0.00 99.45 09:08:01 2 0.05 0.00 0.05 0.00 0.00 99.90 09:08:01 3 0.05 0.00 0.02 0.00 0.00 99.93 09:09:01 all 0.17 0.00 0.03 0.00 0.00 99.80 09:09:01 0 0.02 0.00 0.02 0.00 0.00 99.97 09:09:01 1 0.57 0.00 0.03 0.00 0.00 99.40 09:09:01 2 0.05 0.00 0.05 0.00 0.00 99.90 09:09:01 3 0.03 0.00 0.03 0.00 0.00 99.93 09:10:01 all 0.15 0.00 0.02 0.00 0.00 99.82 09:10:01 0 0.02 0.00 0.02 0.00 0.00 99.97 09:10:01 1 0.50 0.00 0.02 0.00 0.00 99.48 09:10:01 2 0.05 0.00 0.03 0.00 0.00 99.92 09:10:01 3 0.05 0.00 0.03 0.00 0.00 99.92 09:11:02 all 0.07 0.00 0.05 0.00 0.00 99.87 09:11:02 0 0.00 0.00 0.02 0.00 0.00 99.98 09:11:02 1 0.22 0.00 0.12 0.00 0.00 99.67 09:11:02 2 0.05 0.00 0.05 0.00 0.00 99.90 09:11:02 3 0.02 0.00 0.03 0.00 0.00 99.95 09:11:02 CPU %user %nice %system %iowait %steal %idle 09:12:01 all 0.04 0.00 0.03 0.00 0.00 99.93 09:12:01 0 0.02 0.00 0.02 0.00 0.00 99.97 09:12:01 1 0.05 0.00 0.02 0.00 0.00 99.93 09:12:01 2 0.05 0.00 0.07 0.00 0.00 99.88 09:12:01 3 0.05 0.00 0.02 0.00 0.00 99.93 Average: all 0.22 0.00 0.07 0.00 0.00 99.71 Average: 0 0.14 0.00 0.06 0.00 0.00 99.80 Average: 1 0.37 0.00 0.07 0.00 0.00 99.55 Average: 2 0.12 0.00 0.08 0.00 0.00 99.80 Average: 3 0.25 0.00 0.06 0.01 0.00 99.67