---> uname -a: Linux fd5ae3d21a8f 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 8.2G 41.8G 16% / 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 8.2G 41.8G 16% /etc/resolv.conf /dev/vda1 50.0G 8.2G 41.8G 16% /etc/hostname /dev/vda1 50.0G 8.2G 41.8G 16% /etc/hosts /dev/vda1 50.0G 8.2G 41.8G 16% /var/log/sa-host /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/gexfoundry_device-mqtt-go_master /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/gexfoundry_device-mqtt-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 789 126 0 921 984 Swap: 1023 3 1020 ---> 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 24: eth0@if25: 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) 09/10/20 _x86_64_ (4 CPU) 22:58:21 LINUX RESTART (4 CPU) 22:59:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 23:00:01 45.80 15.27 30.53 0.00 4695.72 3021.81 0.00 23:01:01 1.72 0.05 1.67 0.00 0.67 31.01 0.00 23:02:01 0.50 0.10 0.40 0.00 2.13 6.44 0.00 23:03:01 0.32 0.00 0.32 0.00 0.00 3.80 0.00 23:04:01 0.22 0.00 0.22 0.00 0.00 2.53 0.00 23:05:01 0.30 0.00 0.30 0.00 0.00 3.66 0.00 23:06:01 0.23 0.02 0.22 0.00 0.13 1.92 0.00 23:07:01 146.87 82.25 64.62 0.00 4415.45 28860.54 0.00 23:08:01 201.63 74.38 127.25 0.00 3802.86 27818.12 0.00 23:09:01 149.00 85.42 63.58 0.00 7149.95 12409.88 0.00 Average: 54.68 25.76 28.92 0.00 2007.57 7218.94 0.00 22:59:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 23:00:01 171516 0 558928 29.71 2620 1148492 1119224 38.20 429092 1119808 120 23:01:01 175236 0 555204 29.51 2620 1148496 1090184 37.21 428096 1117364 8 23:02:01 174332 0 555948 29.55 2620 1148656 1088436 37.15 429008 1117296 8 23:03:01 173568 0 556712 29.59 2620 1148656 1088388 37.14 430396 1116708 8 23:04:01 173500 0 556772 29.59 2620 1148664 1088304 37.14 435612 1112100 16 23:05:01 168480 0 561788 29.86 2620 1148668 1088400 37.15 440896 1112100 8 23:06:01 169400 0 560860 29.81 2620 1148676 1088220 37.14 439896 1112100 8 23:07:01 116904 0 625832 33.26 2620 1136200 1250236 42.67 457212 1112824 44808 23:08:01 109068 0 793364 42.17 2044 977080 1542580 52.65 577592 919372 82904 23:09:01 168588 0 756692 40.22 1492 954784 1135852 38.76 557748 846856 75484 Average: 160059 0 608210 32.32 2450 1110837 1157982 39.52 462555 1068653 20337 22:59:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 23:00:01 eth0 418.28 275.81 783.52 82.49 0.00 0.00 0.00 0.00 23:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:00:01 docker0 2.11 1.61 0.35 3.62 0.00 0.00 0.00 0.00 23:01:01 eth0 0.52 0.03 0.05 0.00 0.00 0.00 0.00 0.00 23:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 eth0 4.16 1.95 3.21 0.31 0.00 0.00 0.00 0.00 23:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 eth0 0.68 0.33 0.28 0.20 0.00 0.00 0.00 0.00 23:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 eth0 1.15 0.17 0.16 0.04 0.00 0.00 0.00 0.00 23:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:05:01 eth0 1.30 0.65 0.62 0.43 0.00 0.00 0.00 0.00 23:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:06:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 0.00 23:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:07:01 eth0 400.40 359.04 3782.90 29.06 0.00 0.00 0.00 0.00 23:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:08:01 eth0 483.64 425.21 3496.24 102.79 0.00 0.00 0.00 0.00 23:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:08:01 docker0 24.91 23.38 2.91 80.19 0.00 0.00 0.00 0.00 23:09:01 eth0 182.36 146.66 999.96 34.29 0.00 0.00 0.00 0.00 23:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:09:01 docker0 45.57 49.03 3.12 212.43 0.00 0.00 0.00 0.00 Average: eth0 149.32 121.04 907.04 24.97 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 7.26 7.41 0.64 29.64 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) 09/10/20 _x86_64_ (4 CPU) 22:58:21 LINUX RESTART (4 CPU) 22:59:01 CPU %user %nice %system %iowait %steal %idle 23:00:01 all 6.53 0.00 2.17 1.13 0.02 90.14 23:00:01 0 7.43 0.00 2.49 0.59 0.00 89.49 23:00:01 1 5.36 0.00 1.74 0.30 0.02 92.58 23:00:01 2 7.05 0.00 1.87 1.12 0.03 89.92 23:00:01 3 6.28 0.00 2.58 2.53 0.03 88.58 23:01:01 all 0.17 0.00 0.05 0.00 0.01 99.77 23:01:01 0 0.55 0.00 0.03 0.00 0.02 99.40 23:01:01 1 0.05 0.00 0.07 0.00 0.02 99.87 23:01:01 2 0.07 0.00 0.03 0.00 0.00 99.90 23:01:01 3 0.03 0.00 0.05 0.02 0.00 99.90 23:02:01 all 0.19 0.00 0.04 0.00 0.00 99.76 23:02:01 0 0.33 0.00 0.03 0.02 0.00 99.62 23:02:01 1 0.08 0.00 0.03 0.00 0.00 99.88 23:02:01 2 0.27 0.00 0.03 0.00 0.00 99.70 23:02:01 3 0.08 0.00 0.07 0.00 0.00 99.85 23:03:01 all 0.15 0.00 0.02 0.00 0.00 99.82 23:03:01 0 0.03 0.00 0.02 0.00 0.00 99.95 23:03:01 1 0.03 0.00 0.02 0.00 0.00 99.95 23:03:01 2 0.52 0.00 0.03 0.00 0.00 99.45 23:03:01 3 0.03 0.00 0.03 0.00 0.00 99.93 23:04:01 all 0.17 0.00 0.05 0.00 0.00 99.78 23:04:01 0 0.03 0.00 0.03 0.00 0.00 99.93 23:04:01 1 0.07 0.00 0.03 0.00 0.00 99.90 23:04:01 2 0.53 0.00 0.02 0.00 0.00 99.45 23:04:01 3 0.07 0.00 0.12 0.00 0.00 99.82 23:05:01 all 0.15 0.00 0.06 0.00 0.00 99.78 23:05:01 0 0.03 0.00 0.02 0.00 0.00 99.95 23:05:01 1 0.05 0.00 0.03 0.00 0.00 99.92 23:05:01 2 0.52 0.00 0.05 0.00 0.00 99.43 23:05:01 3 0.02 0.00 0.15 0.00 0.00 99.83 23:06:01 all 0.08 0.00 0.03 0.00 0.00 99.89 23:06:01 0 0.05 0.00 0.05 0.00 0.00 99.90 23:06:01 1 0.05 0.00 0.03 0.00 0.00 99.92 23:06:01 2 0.20 0.00 0.03 0.00 0.00 99.77 23:06:01 3 0.02 0.00 0.02 0.00 0.00 99.97 23:07:01 all 5.85 0.00 3.26 0.95 0.02 89.93 23:07:01 0 5.80 0.00 3.13 0.25 0.02 90.80 23:07:01 1 5.86 0.00 3.32 1.71 0.03 89.07 23:07:01 2 5.78 0.00 3.00 0.37 0.02 90.83 23:07:01 3 5.95 0.00 3.58 1.44 0.02 89.01 23:08:01 all 10.62 0.00 6.96 2.38 0.06 79.97 23:08:01 0 11.19 0.00 6.85 2.32 0.05 79.58 23:08:01 1 10.71 0.00 6.74 1.94 0.08 80.53 23:08:01 2 10.38 0.00 6.74 2.75 0.05 80.07 23:08:01 3 10.22 0.00 7.51 2.52 0.05 79.70 23:09:01 all 6.67 0.00 4.28 3.01 0.02 86.01 23:09:01 0 6.18 0.00 4.23 2.22 0.02 87.36 23:09:01 1 9.81 0.00 5.09 4.28 0.02 80.80 23:09:01 2 5.15 0.00 3.57 3.42 0.02 87.84 23:09:01 3 5.55 0.00 4.24 2.14 0.02 88.06 Average: all 3.04 0.00 1.68 0.74 0.01 94.52 Average: 0 3.14 0.00 1.68 0.54 0.01 94.64 Average: 1 3.19 0.00 1.70 0.82 0.02 94.27 Average: 2 3.03 0.00 1.53 0.76 0.01 94.67 Average: 3 2.81 0.00 1.82 0.86 0.01 94.50