---> uname -a: Linux d72020dadff6 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-174 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-174@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 675 126 0 1035 1055 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) 08:59:25 LINUX RESTART (4 CPU) 09:00:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 09:01:01 113.27 53.30 59.98 0.00 7900.30 23520.49 0.00 09:02:01 2.06 0.07 1.99 0.00 1.46 42.71 0.00 09:03:02 0.38 0.00 0.38 0.00 0.00 5.55 0.00 09:04:01 0.19 0.00 0.19 0.00 0.00 2.05 0.00 09:05:01 0.15 0.00 0.15 0.00 0.00 1.96 0.00 09:06:01 0.33 0.00 0.33 0.00 0.00 5.11 0.00 09:07:01 0.28 0.02 0.27 0.00 0.13 3.28 0.00 09:08:01 0.17 0.00 0.17 0.00 0.00 2.28 0.00 09:09:01 24.91 24.71 0.20 0.00 2355.90 2.42 0.00 Average: 15.60 8.61 6.99 0.00 1129.53 2586.43 0.00 09:00:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:01:01 167428 0 582360 30.95 2620 1129148 1122728 38.32 434084 1119320 120 09:02:01 166684 0 582776 30.97 2620 1129476 1120340 38.24 436064 1119144 12 09:03:02 173416 0 576040 30.62 2620 1129480 1086832 37.09 433060 1116416 12 09:04:01 171976 0 577480 30.69 2620 1129480 1086856 37.09 436972 1113860 8 09:05:01 172056 0 577392 30.69 2620 1129488 1086880 37.09 447136 1103616 8 09:06:01 172644 0 576800 30.66 2620 1129492 1086784 37.09 461764 1088512 8 09:07:01 173304 0 576132 30.62 2620 1129500 1083824 36.99 462204 1088280 20 09:08:01 172540 0 576892 30.66 2620 1129504 1083904 36.99 460248 1090328 8 09:09:01 89764 0 588656 31.29 2620 1200516 1093448 37.32 473464 1159832 96 Average: 162201 0 579392 30.79 2620 1137343 1094622 37.36 449444 1111034 32 09:00:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:01:01 eth0 266.94 197.94 1051.32 87.92 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 2.00 1.45 0.35 3.63 0.00 0.00 0.00 0.00 09:02:01 eth0 5.04 1.76 4.88 0.31 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 09:03:02 eth0 4.36 0.63 0.84 0.37 0.00 0.00 0.00 0.00 09:03:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 eth0 2.03 0.59 0.65 0.45 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 1.84 0.56 0.60 0.40 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 2.93 0.22 0.39 0.07 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 2.85 0.95 1.18 0.75 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 2.01 0.55 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 5.68 3.59 5.24 2.26 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 Average: eth0 32.25 22.69 116.89 10.20 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 0.22 0.16 0.04 0.40 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) 08:59:25 LINUX RESTART (4 CPU) 09:00:02 CPU %user %nice %system %iowait %steal %idle 09:01:01 all 13.25 0.00 7.42 4.39 17.29 57.66 09:01:01 0 13.83 0.00 8.38 3.08 17.33 57.39 09:01:01 1 13.37 0.00 6.57 5.13 17.12 57.81 09:01:01 2 12.72 0.00 8.65 4.39 17.21 57.02 09:01:01 3 13.07 0.00 6.09 4.94 17.49 58.41 09:02:01 all 0.29 0.00 0.17 0.00 2.10 97.44 09:02:01 0 0.20 0.00 0.21 0.00 1.89 97.69 09:02:01 1 0.28 0.00 0.12 0.00 1.82 97.78 09:02:01 2 0.43 0.00 0.17 0.00 2.54 96.86 09:02:01 3 0.25 0.00 0.20 0.02 2.13 97.41 09:03:02 all 0.11 0.00 0.08 0.00 1.33 98.48 09:03:02 0 0.07 0.00 0.11 0.00 2.18 97.64 09:03:02 1 0.07 0.00 0.07 0.00 1.08 98.79 09:03:02 2 0.25 0.00 0.07 0.00 1.13 98.56 09:03:02 3 0.07 0.00 0.07 0.00 0.93 98.94 09:04:01 all 0.07 0.00 0.02 0.00 1.09 98.82 09:04:01 0 0.02 0.00 0.02 0.00 1.11 98.86 09:04:01 1 0.10 0.00 0.02 0.00 1.04 98.84 09:04:01 2 0.08 0.00 0.02 0.00 1.46 98.44 09:04:01 3 0.07 0.00 0.03 0.00 0.76 99.14 09:05:01 all 0.04 0.00 0.06 0.00 1.18 98.73 09:05:01 0 0.02 0.00 0.13 0.00 0.84 99.01 09:05:01 1 0.10 0.00 0.03 0.00 1.32 98.55 09:05:01 2 0.02 0.00 0.05 0.00 1.10 98.83 09:05:01 3 0.02 0.00 0.02 0.00 1.45 98.52 09:06:01 all 0.05 0.00 0.05 0.00 0.79 99.10 09:06:01 0 0.00 0.00 0.08 0.00 0.46 99.45 09:06:01 1 0.17 0.00 0.03 0.00 0.71 99.09 09:06:01 2 0.03 0.00 0.05 0.00 1.04 98.88 09:06:01 3 0.02 0.00 0.05 0.00 0.96 98.98 09:07:01 all 0.12 0.00 0.04 0.00 0.17 99.66 09:07:01 0 0.05 0.00 0.08 0.00 0.15 99.72 09:07:01 1 0.35 0.00 0.03 0.00 0.18 99.43 09:07:01 2 0.05 0.00 0.03 0.00 0.23 99.68 09:07:01 3 0.05 0.00 0.02 0.00 0.12 99.82 09:08:01 all 0.18 0.00 0.02 0.00 0.10 99.69 09:08:01 0 0.02 0.00 0.02 0.00 0.08 99.88 09:08:01 1 0.30 0.00 0.00 0.00 0.03 99.67 09:08:01 2 0.37 0.00 0.03 0.00 0.18 99.42 09:08:01 3 0.05 0.00 0.05 0.00 0.12 99.78 09:09:01 all 0.60 0.00 0.32 0.81 1.92 96.35 09:09:01 0 0.63 0.00 0.36 0.92 2.41 95.68 09:09:01 1 0.71 0.00 0.33 1.16 1.64 96.16 09:09:01 2 0.68 0.00 0.28 0.30 1.75 97.00 09:09:01 3 0.40 0.00 0.31 0.84 1.88 96.56 Average: all 1.62 0.00 0.90 0.57 2.87 94.03 Average: 0 1.63 0.00 1.03 0.44 2.92 93.98 Average: 1 1.70 0.00 0.79 0.69 2.76 94.05 Average: 2 1.61 0.00 1.03 0.52 2.95 93.90 Average: 3 1.55 0.00 0.76 0.64 2.86 94.19