---> uname -a: Linux 124d84fed963 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% /w/workspace/xfoundry_device-modbus-go_PR-171@tmp /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 ---> free -m: total used free shared buff/cache available Mem: 1837 664 136 0 1036 1065 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) 09/04/20 _x86_64_ (4 CPU) 22:09:02 LINUX RESTART (4 CPU) 22:10:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 22:11:01 19.81 4.59 15.22 0.00 1110.97 2014.57 0.00 22:12:01 1.65 0.00 1.65 0.00 0.00 29.97 0.00 22:13:01 0.47 0.00 0.47 0.00 0.00 5.90 0.00 22:14:01 0.43 0.00 0.43 0.00 0.00 4.43 0.00 Average: 5.59 1.15 4.44 0.00 277.82 513.86 0.00 22:10:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 22:11:01 164836 0 584172 31.05 2620 1129928 1112212 37.96 432152 1125832 20 22:12:01 165192 0 583812 31.03 2620 1129932 1089416 37.18 433540 1124172 16 22:13:01 163020 0 585976 31.14 2620 1129940 1081372 36.91 435908 1123844 8 22:14:01 163848 0 585128 31.10 2620 1129960 1081144 36.90 436408 1123212 16 Average: 164224 0 584772 31.08 2620 1129940 1091036 37.24 434502 1124265 15 22:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 22:11:01 eth0 31.23 24.69 27.04 25.62 0.00 0.00 0.00 0.00 22:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:11:01 docker0 1.83 1.42 0.34 3.71 0.00 0.00 0.00 0.00 22:12:01 eth0 3.85 1.48 2.94 0.10 0.00 0.00 0.00 0.00 22:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:13:01 eth0 1.35 0.67 0.58 0.40 0.00 0.00 0.00 0.00 22:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:14:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 0.00 22:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 9.13 6.73 7.65 6.53 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 0.46 0.35 0.09 0.93 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) 09/04/20 _x86_64_ (4 CPU) 22:09:02 LINUX RESTART (4 CPU) 22:10:01 CPU %user %nice %system %iowait %steal %idle 22:11:01 all 1.68 0.00 1.11 0.64 0.01 96.55 22:11:01 0 1.57 0.00 1.15 0.23 0.00 97.04 22:11:01 1 2.04 0.00 1.07 0.08 0.02 96.79 22:11:01 2 1.57 0.00 1.25 0.75 0.02 96.40 22:11:01 3 1.56 0.00 0.97 1.49 0.02 95.97 22:12:01 all 0.19 0.00 0.05 0.00 0.00 99.77 22:12:01 0 0.05 0.00 0.05 0.00 0.00 99.90 22:12:01 1 0.57 0.00 0.05 0.00 0.00 99.38 22:12:01 2 0.07 0.00 0.05 0.00 0.00 99.88 22:12:01 3 0.07 0.00 0.03 0.00 0.00 99.90 22:13:01 all 0.08 0.00 0.05 0.00 0.00 99.87 22:13:01 0 0.02 0.00 0.03 0.00 0.00 99.95 22:13:01 1 0.20 0.00 0.10 0.00 0.00 99.70 22:13:01 2 0.05 0.00 0.07 0.00 0.00 99.88 22:13:01 3 0.05 0.00 0.02 0.00 0.00 99.93 22:14:01 all 0.05 0.00 0.04 0.00 0.00 99.91 22:14:01 0 0.02 0.00 0.02 0.00 0.00 99.97 22:14:01 1 0.13 0.00 0.07 0.00 0.00 99.80 22:14:01 2 0.05 0.00 0.05 0.00 0.00 99.90 22:14:01 3 0.02 0.00 0.02 0.00 0.00 99.97 Average: all 0.50 0.00 0.31 0.16 0.00 99.02 Average: 0 0.41 0.00 0.31 0.06 0.00 99.22 Average: 1 0.74 0.00 0.32 0.02 0.00 98.92 Average: 2 0.43 0.00 0.35 0.19 0.00 99.02 Average: 3 0.42 0.00 0.26 0.37 0.00 98.94