---> uname -a: Linux 5b89b5d101cb 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/xfoundry_device-modbus-go_PR-171 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/xfoundry_device-modbus-go_PR-171@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 641 139 0 1056 1088 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) 09/10/20 _x86_64_ (4 CPU) 16:51:54 LINUX RESTART (4 CPU) 16:53:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 16:54:01 6.49 1.70 4.80 0.00 83.38 143.14 0.00 16:55:02 0.38 0.00 0.38 0.00 0.00 6.04 0.00 16:56:01 0.25 0.00 0.25 0.00 0.00 3.03 0.00 16:57:01 0.27 0.00 0.27 0.00 0.00 3.33 0.00 Average: 1.86 0.43 1.43 0.00 20.94 39.04 0.00 16:53:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:54:01 172080 0 561296 29.83 2620 1145560 1094852 37.37 437612 1112892 20 16:55:02 170712 0 562660 29.90 2620 1145564 1092568 37.29 439684 1112372 8 16:56:01 170756 0 562608 29.90 2620 1145572 1081476 36.91 440012 1112060 12 16:57:01 169440 0 563924 29.97 2620 1145572 1081368 36.91 446208 1107352 16 Average: 170747 0 562622 29.90 2620 1145567 1087566 37.12 440879 1111169 14 16:53:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 16:54:01 eth0 6.58 4.41 5.51 5.67 0.00 0.00 0.00 0.00 16:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:54:01 docker0 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 16:55:02 eth0 4.06 2.06 2.97 0.14 0.00 0.00 0.00 0.00 16:55:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:55:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:56:01 eth0 1.29 0.66 0.58 0.41 0.00 0.00 0.00 0.00 16:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:57:01 eth0 0.83 0.47 0.34 0.21 0.00 0.00 0.00 0.00 16:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 3.20 1.91 2.36 1.61 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 0.00 0.00 0.00 0.00 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) 16:51:54 LINUX RESTART (4 CPU) 16:53:01 CPU %user %nice %system %iowait %steal %idle 16:54:01 all 0.51 0.00 0.13 0.03 0.00 99.33 16:54:01 0 0.43 0.00 0.15 0.02 0.00 99.40 16:54:01 1 0.48 0.00 0.07 0.02 0.00 99.43 16:54:01 2 0.77 0.00 0.18 0.02 0.00 99.03 16:54:01 3 0.37 0.00 0.12 0.07 0.00 99.45 16:55:02 all 0.12 0.00 0.04 0.00 0.00 99.84 16:55:02 0 0.05 0.00 0.03 0.00 0.00 99.92 16:55:02 1 0.05 0.00 0.05 0.00 0.00 99.90 16:55:02 2 0.35 0.00 0.05 0.00 0.00 99.60 16:55:02 3 0.03 0.00 0.02 0.00 0.00 99.95 16:56:01 all 0.17 0.00 0.03 0.00 0.01 99.79 16:56:01 0 0.05 0.00 0.02 0.00 0.02 99.92 16:56:01 1 0.07 0.00 0.07 0.00 0.00 99.86 16:56:01 2 0.52 0.00 0.03 0.00 0.02 99.42 16:56:01 3 0.03 0.00 0.02 0.00 0.00 99.95 16:57:01 all 0.13 0.00 0.05 0.00 0.00 99.82 16:57:01 0 0.02 0.00 0.03 0.00 0.00 99.95 16:57:01 1 0.07 0.00 0.03 0.00 0.00 99.90 16:57:01 2 0.43 0.00 0.10 0.00 0.00 99.47 16:57:01 3 0.02 0.00 0.02 0.00 0.00 99.97 Average: all 0.23 0.00 0.06 0.01 0.00 99.69 Average: 0 0.14 0.00 0.06 0.00 0.00 99.79 Average: 1 0.17 0.00 0.05 0.00 0.00 99.77 Average: 2 0.52 0.00 0.09 0.00 0.00 99.38 Average: 3 0.11 0.00 0.04 0.02 0.00 99.83