---> uname -a: Linux 3baab551773e 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 8.5G 41.5G 17% / 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 8.5G 41.5G 17% /etc/resolv.conf /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hostname /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hosts /dev/vda1 50.0G 8.5G 41.5G 17% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_device-modbus-go_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_device-modbus-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 774 117 0 944 995 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) 06/15/20 _x86_64_ (4 CPU) 15:37:01 LINUX RESTART 15:38:01 tps rtps wtps bread/s bwrtn/s 15:39:01 3.96 0.02 3.95 0.13 83.82 15:40:01 0.33 0.00 0.33 0.00 5.25 15:41:01 0.47 0.00 0.47 0.00 7.61 15:42:01 0.68 0.00 0.68 0.00 9.71 15:43:01 0.67 0.00 0.67 0.00 8.21 15:44:01 0.67 0.02 0.65 0.13 7.81 15:45:01 0.73 0.00 0.73 0.00 8.97 15:46:01 0.30 0.00 0.30 0.00 3.05 15:47:01 0.37 0.00 0.37 0.00 5.46 15:48:01 41.05 4.76 36.29 513.93 17887.31 15:49:01 325.48 171.89 153.59 7268.56 37019.08 Average: 34.19 16.13 18.06 710.30 5018.16 15:38:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:39:01 168020 1713536 91.07 2620 1146596 1120248 38.23 430584 1122696 20 15:40:01 170552 1711004 90.94 2620 1146600 1111340 37.93 430476 1120948 20 15:41:01 171452 1710104 90.89 2620 1146604 1104212 37.68 430048 1120764 8 15:42:01 170684 1710872 90.93 2620 1146608 1100124 37.55 435748 1115836 8 15:43:01 170552 1711004 90.94 2620 1146612 1100124 37.55 436996 1114820 8 15:44:01 168072 1713484 91.07 2620 1146624 1100276 37.55 447072 1107328 8 15:45:01 168264 1713292 91.06 2620 1146628 1100264 37.55 441020 1113284 8 15:46:01 170612 1710944 90.93 2620 1146692 1079668 36.85 439244 1112640 20 15:47:01 170860 1710696 90.92 2620 1146640 1079668 36.85 439204 1112624 8 15:48:01 238896 1642660 87.30 2620 1010860 1286312 43.90 438388 1011844 71796 15:49:01 110284 1771272 94.14 2280 980844 1538092 52.49 618652 884080 91272 Average: 170750 1710806 90.93 2589 1119210 1156393 39.47 453403 1085169 14834 15:38:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:39:01 eth0 15.47 8.69 14.44 6.85 0.00 0.00 0.00 15:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:39:01 docker0 1.15 1.00 0.12 3.19 0.00 0.00 0.00 15:40:01 eth0 3.81 1.02 1.28 0.72 0.00 0.00 0.00 15:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:41:01 eth0 4.08 0.80 1.06 0.64 0.00 0.00 0.00 15:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:42:01 eth0 3.83 0.80 1.03 0.62 0.00 0.00 0.00 15:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:43:01 eth0 2.83 0.80 1.05 0.64 0.00 0.00 0.00 15:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:44:01 eth0 1.18 0.58 0.57 0.40 0.00 0.00 0.00 15:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:45:01 eth0 0.52 0.28 0.27 0.17 0.00 0.00 0.00 15:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:46:01 eth0 0.13 0.08 0.01 0.04 0.00 0.00 0.00 15:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:47:01 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 15:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:48:01 eth0 110.82 77.78 3760.44 9.02 0.00 0.00 0.00 15:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:49:01 eth0 205.40 159.39 3436.44 90.42 0.00 0.00 0.00 15:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:49:01 docker0 23.16 22.66 2.69 51.09 0.00 0.00 0.00 Average: eth0 31.73 22.81 657.33 9.99 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.22 2.16 0.26 4.95 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) 06/15/20 _x86_64_ (4 CPU) 15:37:01 LINUX RESTART 15:38:01 CPU %user %nice %system %iowait %steal %idle 15:39:01 all 0.59 0.00 0.25 0.02 0.06 99.07 15:39:01 0 0.48 0.00 0.25 0.02 0.08 99.17 15:39:01 1 0.53 0.00 0.28 0.00 0.07 99.12 15:39:01 2 0.72 0.00 0.15 0.03 0.07 99.03 15:39:01 3 0.62 0.00 0.35 0.00 0.05 98.98 15:40:01 all 0.12 0.00 0.03 0.00 0.07 99.78 15:40:01 0 0.07 0.00 0.03 0.00 0.07 99.83 15:40:01 1 0.05 0.00 0.03 0.00 0.10 99.82 15:40:01 2 0.25 0.00 0.03 0.00 0.03 99.68 15:40:01 3 0.12 0.00 0.03 0.00 0.07 99.78 15:41:01 all 0.18 0.00 0.03 0.00 0.02 99.76 15:41:01 0 0.07 0.00 0.03 0.00 0.07 99.83 15:41:01 1 0.30 0.00 0.02 0.00 0.03 99.65 15:41:01 2 0.05 0.00 0.02 0.00 0.00 99.93 15:41:01 3 0.33 0.00 0.03 0.00 0.00 99.63 15:42:01 all 0.15 0.00 0.03 0.00 0.01 99.80 15:42:01 0 0.05 0.00 0.03 0.00 0.00 99.92 15:42:01 1 0.03 0.00 0.03 0.00 0.02 99.92 15:42:01 2 0.02 0.00 0.02 0.00 0.02 99.95 15:42:01 3 0.52 0.00 0.03 0.00 0.02 99.43 15:43:01 all 0.15 0.00 0.04 0.00 0.01 99.80 15:43:01 0 0.03 0.00 0.03 0.00 0.02 99.92 15:43:01 1 0.03 0.00 0.03 0.00 0.00 99.93 15:43:01 2 0.05 0.00 0.03 0.00 0.00 99.92 15:43:01 3 0.50 0.00 0.07 0.00 0.00 99.43 15:44:01 all 0.16 0.00 0.05 0.00 0.02 99.77 15:44:01 0 0.07 0.00 0.03 0.02 0.03 99.85 15:44:01 1 0.03 0.00 0.03 0.00 0.02 99.92 15:44:01 2 0.02 0.00 0.02 0.00 0.02 99.95 15:44:01 3 0.52 0.00 0.10 0.00 0.02 99.37 15:45:01 all 0.16 0.00 0.02 0.00 0.04 99.78 15:45:01 0 0.03 0.00 0.05 0.00 0.02 99.90 15:45:01 1 0.03 0.00 0.03 0.00 0.07 99.87 15:45:01 2 0.53 0.00 0.02 0.00 0.03 99.42 15:45:01 3 0.03 0.00 0.02 0.00 0.05 99.90 15:46:01 all 0.14 0.00 0.04 0.00 0.03 99.79 15:46:01 0 0.02 0.00 0.03 0.00 0.03 99.92 15:46:01 1 0.03 0.00 0.02 0.00 0.03 99.92 15:46:01 2 0.48 0.00 0.02 0.00 0.03 99.47 15:46:01 3 0.03 0.00 0.07 0.00 0.02 99.88 15:47:01 all 0.14 0.00 0.02 0.00 0.00 99.83 15:47:01 0 0.03 0.00 0.03 0.00 0.00 99.93 15:47:01 1 0.02 0.00 0.02 0.00 0.02 99.95 15:47:01 2 0.50 0.00 0.02 0.00 0.00 99.48 15:47:01 3 0.03 0.00 0.03 0.00 0.02 99.92 15:48:01 all 4.41 0.00 2.60 0.19 0.37 92.43 15:48:01 0 4.32 0.00 2.84 0.07 0.35 92.42 15:48:01 1 4.64 0.00 2.39 0.20 0.39 92.39 15:48:01 2 4.62 0.00 2.45 0.35 0.37 92.21 15:48:01 3 4.04 0.00 2.74 0.13 0.34 92.75 15:49:01 all 12.91 0.00 8.09 3.15 1.19 74.67 15:49:01 0 12.41 0.00 8.26 2.54 1.17 75.63 15:49:01 1 12.51 0.00 7.87 3.12 1.26 75.23 15:49:01 2 12.71 0.00 7.44 3.63 1.18 75.03 15:49:01 3 14.00 0.00 8.79 3.29 1.13 72.78 Average: all 1.71 0.00 1.00 0.30 0.16 96.83 Average: 0 1.57 0.00 1.04 0.23 0.16 96.99 Average: 1 1.63 0.00 0.96 0.30 0.18 96.93 Average: 2 1.78 0.00 0.91 0.36 0.16 96.79 Average: 3 1.85 0.00 1.09 0.30 0.15 96.60