---> uname -a: Linux da028adb3705 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 7.2G 42.8G 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 7.2G 42.8G 14% /etc/resolv.conf /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hostname /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hosts /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-155 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-155@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 642 126 0 1068 1090 Swap: 1023 1 1022 ---> 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) 06/17/20 _x86_64_ (4 CPU) 19:05:34 LINUX RESTART 19:06:01 tps rtps wtps bread/s bwrtn/s 19:07:01 74.13 26.86 47.27 6385.61 5024.89 19:08:01 1.77 0.00 1.77 0.00 29.64 19:09:01 0.23 0.00 0.23 0.00 3.63 19:10:01 0.25 0.00 0.25 0.00 2.57 19:11:01 0.23 0.00 0.23 0.00 3.36 19:12:01 0.35 0.00 0.35 0.00 4.51 19:13:01 0.27 0.02 0.25 0.13 2.75 19:14:01 0.30 0.00 0.30 0.00 3.38 Average: 9.69 3.36 6.33 798.47 634.54 19:06:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:07:01 167776 1713780 91.08 2620 1156808 1116088 38.09 431976 1121552 12 19:08:01 172844 1708712 90.81 2620 1156812 1079652 36.85 429144 1120040 20 19:09:01 171612 1709944 90.88 2620 1156820 1079892 36.85 430592 1120028 8 19:10:01 169444 1712112 90.99 2620 1156820 1079952 36.86 432896 1119904 16 19:11:01 171184 1710372 90.90 2620 1156824 1079652 36.85 434200 1116904 12 19:12:01 168332 1713224 91.05 2620 1156832 1079736 36.85 437552 1116904 8 19:13:01 168680 1712876 91.04 2620 1156840 1079652 36.85 446424 1107820 8 19:14:01 168672 1712884 91.04 2620 1156848 1079652 36.85 440116 1114060 12 Average: 169818 1711738 90.97 2620 1156826 1084285 37.00 435363 1117152 12 19:06:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 19:07:01 eth0 452.38 287.56 1039.19 89.50 0.00 0.00 0.00 19:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:07:01 docker0 2.11 1.78 0.36 3.51 0.00 0.00 0.00 19:08:01 eth0 0.80 0.08 0.06 0.01 0.00 0.00 0.00 19:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:09:01 eth0 0.97 0.33 0.32 0.20 0.00 0.00 0.00 19:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:10:01 eth0 0.83 0.62 0.55 0.37 0.00 0.00 0.00 19:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:11:01 eth0 0.08 0.08 0.01 0.04 0.00 0.00 0.00 19:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:12:01 eth0 0.32 0.18 0.14 0.07 0.00 0.00 0.00 19:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:13:01 eth0 0.12 0.17 0.01 0.01 0.00 0.00 0.00 19:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:14:01 eth0 0.07 0.08 0.01 0.01 0.00 0.00 0.00 19:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 56.96 36.15 130.08 11.28 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.26 0.22 0.05 0.44 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) 06/17/20 _x86_64_ (4 CPU) 19:05:34 LINUX RESTART 19:06:01 CPU %user %nice %system %iowait %steal %idle 19:07:01 all 12.38 0.00 3.57 2.34 0.05 81.66 19:07:01 0 11.41 0.00 4.57 1.61 0.05 82.36 19:07:01 1 12.62 0.00 3.67 3.60 0.05 80.05 19:07:01 2 12.49 0.00 2.85 2.46 0.03 82.16 19:07:01 3 13.03 0.00 3.18 1.66 0.05 82.09 19:08:01 all 0.15 0.00 0.04 0.00 0.00 99.81 19:08:01 0 0.03 0.00 0.07 0.00 0.00 99.90 19:08:01 1 0.03 0.00 0.03 0.00 0.00 99.93 19:08:01 2 0.03 0.00 0.02 0.00 0.00 99.95 19:08:01 3 0.50 0.00 0.03 0.00 0.00 99.47 19:09:01 all 0.13 0.00 0.03 0.00 0.00 99.84 19:09:01 0 0.03 0.00 0.07 0.00 0.00 99.90 19:09:01 1 0.03 0.00 0.02 0.00 0.00 99.95 19:09:01 2 0.03 0.00 0.00 0.00 0.00 99.97 19:09:01 3 0.43 0.00 0.05 0.00 0.00 99.52 19:10:01 all 0.15 0.00 0.02 0.00 0.00 99.83 19:10:01 0 0.05 0.00 0.03 0.00 0.00 99.92 19:10:01 1 0.02 0.00 0.02 0.00 0.02 99.95 19:10:01 2 0.03 0.00 0.02 0.00 0.00 99.95 19:10:01 3 0.52 0.00 0.02 0.00 0.00 99.47 19:11:01 all 0.16 0.00 0.02 0.00 0.00 99.82 19:11:01 0 0.05 0.00 0.05 0.00 0.00 99.90 19:11:01 1 0.02 0.00 0.02 0.00 0.00 99.97 19:11:01 2 0.03 0.00 0.02 0.00 0.00 99.95 19:11:01 3 0.53 0.00 0.02 0.00 0.00 99.45 19:12:01 all 0.15 0.00 0.03 0.00 0.00 99.82 19:12:01 0 0.03 0.00 0.10 0.00 0.00 99.87 19:12:01 1 0.00 0.00 0.02 0.00 0.00 99.98 19:12:01 2 0.05 0.00 0.02 0.00 0.00 99.93 19:12:01 3 0.52 0.00 0.02 0.00 0.00 99.47 19:13:01 all 0.16 0.00 0.02 0.00 0.00 99.82 19:13:01 0 0.02 0.00 0.07 0.00 0.00 99.92 19:13:01 1 0.02 0.00 0.00 0.00 0.00 99.98 19:13:01 2 0.07 0.00 0.03 0.00 0.00 99.90 19:13:01 3 0.53 0.00 0.02 0.00 0.00 99.45 19:14:01 all 0.15 0.00 0.02 0.00 0.00 99.84 19:14:01 0 0.02 0.00 0.02 0.00 0.00 99.97 19:14:01 1 0.02 0.00 0.02 0.00 0.00 99.97 19:14:01 2 0.03 0.00 0.02 0.00 0.00 99.95 19:14:01 3 0.52 0.00 0.00 0.00 0.00 99.48 Average: all 1.67 0.00 0.47 0.29 0.01 97.56 Average: 0 1.45 0.00 0.62 0.20 0.01 97.73 Average: 1 1.59 0.00 0.47 0.45 0.01 97.49 Average: 2 1.59 0.00 0.37 0.31 0.00 97.73 Average: 3 2.07 0.00 0.41 0.21 0.01 97.31