---> uname -a: Linux 58311de0daec 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: 2933.436 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/xfoundry_device-modbus-go_master /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/xfoundry_device-modbus-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 800 118 0 918 970 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) 09/17/20 _x86_64_ (4 CPU) 08:51:04 LINUX RESTART (4 CPU) 08:52:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:53:01 29.68 11.37 18.31 0.00 4466.52 2058.03 0.00 08:54:01 1.58 0.00 1.58 0.00 0.00 27.79 0.00 08:55:01 0.30 0.00 0.30 0.00 0.00 4.20 0.00 08:56:01 0.25 0.00 0.25 0.00 0.00 3.36 0.00 08:57:01 0.23 0.00 0.23 0.00 0.00 3.55 0.00 08:58:01 208.14 116.66 91.48 0.00 6836.75 31824.55 0.00 08:59:01 181.35 55.84 125.51 0.00 3608.65 30360.82 0.00 Average: 60.24 26.27 33.96 0.00 2130.75 9186.33 0.00 08:52:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:53:01 163420 0 594688 31.61 2620 1120828 1119636 38.21 426684 1132076 16 08:54:01 168552 0 589552 31.33 2620 1120832 1075248 36.70 426800 1128116 24 08:55:01 168152 0 589944 31.35 2620 1120840 1075320 36.70 427248 1128116 12 08:56:01 165940 0 592156 31.47 2620 1120840 1075372 36.70 436212 1121356 20 08:57:01 166756 0 591332 31.43 2620 1120848 1075216 36.70 438456 1118288 12 08:58:01 185260 0 653544 34.73 2620 1040132 1300616 44.39 542112 958684 56 08:59:01 67980 0 763520 40.58 2132 1047924 1273024 43.45 588952 948348 520 Average: 155151 0 624962 33.22 2550 1098892 1142062 38.98 469495 1076426 94 08:52:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:53:01 eth0 85.50 64.39 353.88 33.46 0.00 0.00 0.00 0.00 08:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:53:01 docker0 1.88 1.61 0.34 3.68 0.00 0.00 0.00 0.00 08:54:01 eth0 3.23 0.30 0.52 0.23 0.00 0.00 0.00 0.00 08:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:55:01 eth0 3.16 1.00 1.23 0.76 0.00 0.00 0.00 0.00 08:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:56:01 eth0 1.10 0.58 0.55 0.44 0.00 0.00 0.00 0.00 08:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:57:01 eth0 0.32 0.10 0.08 0.06 0.00 0.00 0.00 0.00 08:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:58:01 vethbc94aa1 0.27 0.23 0.04 0.12 0.00 0.00 0.00 0.00 08:58:01 eth0 455.66 411.50 4005.12 40.11 0.00 0.00 0.00 0.00 08:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:58:01 docker0 23.44 21.17 2.56 50.78 0.00 0.00 0.00 0.00 08:59:01 veth16494f9 2.05 1.41 0.15 0.23 0.00 0.00 0.00 0.00 08:59:01 eth0 496.14 440.40 3266.47 101.83 0.00 0.00 0.00 0.00 08:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:59:01 docker0 3.39 2.43 0.37 0.71 0.00 0.00 0.00 0.00 Average: veth16494f9 0.29 0.20 0.02 0.03 0.00 0.00 0.00 0.00 Average: eth0 149.35 131.23 1090.05 25.28 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 4.10 3.60 0.47 7.88 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) 08:51:04 LINUX RESTART (4 CPU) 08:52:01 CPU %user %nice %system %iowait %steal %idle 08:53:01 all 2.99 0.00 1.72 0.65 0.14 94.50 08:53:01 0 2.84 0.00 1.75 0.52 0.15 94.74 08:53:01 1 3.09 0.00 1.66 0.92 0.13 94.19 08:53:01 2 2.61 0.00 1.89 0.89 0.17 94.44 08:53:01 3 3.41 0.00 1.59 0.27 0.12 94.61 08:54:01 all 0.15 0.00 0.05 0.00 0.11 99.70 08:54:01 0 0.05 0.00 0.07 0.00 0.12 99.77 08:54:01 1 0.17 0.00 0.03 0.00 0.13 99.67 08:54:01 2 0.35 0.00 0.05 0.00 0.10 99.50 08:54:01 3 0.03 0.00 0.03 0.00 0.08 99.85 08:55:01 all 0.17 0.00 0.04 0.00 0.05 99.74 08:55:01 0 0.05 0.00 0.02 0.00 0.05 99.88 08:55:01 1 0.07 0.00 0.03 0.00 0.07 99.83 08:55:01 2 0.52 0.00 0.05 0.00 0.05 99.38 08:55:01 3 0.05 0.00 0.05 0.00 0.05 99.85 08:56:01 all 0.15 0.00 0.03 0.00 0.00 99.81 08:56:01 0 0.07 0.00 0.02 0.00 0.00 99.92 08:56:01 1 0.05 0.00 0.07 0.00 0.00 99.88 08:56:01 2 0.47 0.00 0.03 0.00 0.00 99.50 08:56:01 3 0.03 0.00 0.02 0.00 0.02 99.93 08:57:01 all 0.15 0.00 0.05 0.00 0.00 99.80 08:57:01 0 0.03 0.00 0.03 0.00 0.00 99.93 08:57:01 1 0.03 0.00 0.12 0.00 0.02 99.83 08:57:01 2 0.50 0.00 0.02 0.00 0.00 99.48 08:57:01 3 0.02 0.00 0.03 0.00 0.00 99.95 08:58:01 all 8.05 0.00 5.09 1.71 0.20 84.95 08:58:01 0 7.00 0.00 4.92 2.00 0.24 85.84 08:58:01 1 8.38 0.00 4.96 1.14 0.20 85.32 08:58:01 2 8.55 0.00 5.02 3.07 0.17 83.18 08:58:01 3 8.24 0.00 5.48 0.65 0.17 85.46 08:59:01 all 9.78 0.00 7.74 2.51 0.58 79.39 08:59:01 0 9.64 0.00 8.09 2.47 0.54 79.26 08:59:01 1 9.36 0.00 7.57 2.73 0.53 79.81 08:59:01 2 9.90 0.00 8.10 2.32 0.57 79.12 08:59:01 3 10.23 0.00 7.20 2.50 0.69 79.39 Average: all 3.01 0.00 2.07 0.68 0.15 94.08 Average: 0 2.76 0.00 2.08 0.70 0.15 94.31 Average: 1 2.98 0.00 2.03 0.67 0.15 94.16 Average: 2 3.23 0.00 2.13 0.89 0.15 93.61 Average: 3 3.10 0.00 2.02 0.48 0.16 94.24