---> uname -a: Linux b0a017e1a3a4 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 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-154 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-154@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 632 126 0 1078 1099 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) 06/11/20 _x86_64_ (4 CPU) 20:00:54 LINUX RESTART 20:02:03 tps rtps wtps bread/s bwrtn/s 20:03:01 2.39 0.00 2.39 0.00 52.40 20:04:01 0.33 0.00 0.33 0.00 4.33 20:05:01 0.33 0.00 0.33 0.00 4.35 20:06:01 0.25 0.00 0.25 0.00 2.83 20:07:01 0.22 0.00 0.22 0.00 3.51 20:08:01 0.33 0.02 0.32 0.13 3.40 20:09:01 0.25 0.00 0.25 0.00 2.73 20:10:01 0.27 0.00 0.27 0.00 3.65 20:11:01 0.25 0.00 0.25 0.00 2.71 Average: 0.51 0.00 0.51 0.01 8.72 20:02:03 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 20:03:01 179652 1701904 90.45 2620 1152592 1101348 37.59 395692 1146092 12 20:04:01 180304 1701252 90.42 2620 1152596 1079760 36.85 396600 1144800 12 20:05:01 179580 1701976 90.46 2620 1152604 1079976 36.86 398992 1143584 8 20:06:01 177908 1703648 90.54 2620 1152604 1079940 36.86 401012 1143024 0 20:07:01 178696 1702860 90.50 2620 1152612 1079856 36.85 406912 1136684 12 20:08:01 178628 1702928 90.51 2620 1152620 1079888 36.85 418492 1124956 16 20:09:01 179056 1702500 90.48 2620 1152624 1079888 36.85 409812 1133764 8 20:10:01 177940 1703616 90.54 2620 1152632 1080044 36.86 410672 1133764 12 20:11:01 179056 1702500 90.48 2620 1152692 1079888 36.85 409812 1133780 24 Average: 178980 1702576 90.49 2620 1152620 1082288 36.94 405333 1137828 12 20:02:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 20:03:01 eth0 1.27 0.76 1.25 0.28 0.00 0.00 0.00 20:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:04:01 eth0 0.55 0.08 0.06 0.01 0.00 0.00 0.00 20:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:05:01 eth0 1.08 0.43 0.32 0.21 0.00 0.00 0.00 20:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:06:01 eth0 0.48 0.37 0.27 0.21 0.00 0.00 0.00 20:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:07:01 eth0 0.30 0.25 0.14 0.08 0.00 0.00 0.00 20:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:08:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 20:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:09:01 eth0 0.07 0.03 0.00 0.00 0.00 0.00 0.00 20:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:10:01 eth0 0.55 0.32 0.27 0.20 0.00 0.00 0.00 20:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:11:01 eth0 0.07 0.07 0.01 0.01 0.00 0.00 0.00 20:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 0.49 0.26 0.26 0.11 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 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) 06/11/20 _x86_64_ (4 CPU) 20:00:54 LINUX RESTART 20:02:03 CPU %user %nice %system %iowait %steal %idle 20:03:01 all 0.18 0.00 0.06 0.00 0.05 99.72 20:03:01 0 0.10 0.00 0.09 0.00 0.02 99.79 20:03:01 1 0.29 0.00 0.05 0.00 0.07 99.59 20:03:01 2 0.24 0.00 0.05 0.00 0.09 99.62 20:03:01 3 0.07 0.00 0.07 0.00 0.03 99.83 20:04:01 all 0.14 0.00 0.03 0.00 0.03 99.80 20:04:01 0 0.43 0.00 0.02 0.00 0.03 99.52 20:04:01 1 0.03 0.00 0.03 0.00 0.05 99.88 20:04:01 2 0.03 0.00 0.02 0.00 0.00 99.95 20:04:01 3 0.03 0.00 0.03 0.00 0.03 99.90 20:05:01 all 0.14 0.00 0.03 0.00 0.10 99.73 20:05:01 0 0.45 0.00 0.03 0.00 0.05 99.47 20:05:01 1 0.07 0.00 0.03 0.00 0.13 99.77 20:05:01 2 0.02 0.00 0.03 0.00 0.05 99.90 20:05:01 3 0.03 0.00 0.03 0.00 0.18 99.75 20:06:01 all 0.15 0.00 0.02 0.00 0.02 99.80 20:06:01 0 0.52 0.00 0.03 0.00 0.02 99.43 20:06:01 1 0.05 0.00 0.03 0.00 0.03 99.88 20:06:01 2 0.02 0.00 0.02 0.00 0.00 99.97 20:06:01 3 0.03 0.00 0.02 0.00 0.02 99.93 20:07:01 all 0.15 0.00 0.05 0.00 0.01 99.79 20:07:01 0 0.53 0.00 0.02 0.00 0.02 99.43 20:07:01 1 0.05 0.00 0.03 0.00 0.00 99.92 20:07:01 2 0.03 0.00 0.02 0.00 0.00 99.95 20:07:01 3 0.02 0.00 0.12 0.00 0.00 99.87 20:08:01 all 0.12 0.00 0.06 0.00 0.00 99.81 20:08:01 0 0.38 0.00 0.07 0.00 0.00 99.55 20:08:01 1 0.05 0.00 0.05 0.00 0.02 99.88 20:08:01 2 0.03 0.00 0.03 0.00 0.00 99.93 20:08:01 3 0.02 0.00 0.12 0.00 0.00 99.87 20:09:01 all 0.16 0.00 0.02 0.00 0.01 99.81 20:09:01 0 0.50 0.00 0.00 0.00 0.00 99.50 20:09:01 1 0.07 0.00 0.03 0.00 0.02 99.88 20:09:01 2 0.03 0.00 0.02 0.00 0.02 99.93 20:09:01 3 0.02 0.00 0.02 0.00 0.00 99.97 20:10:01 all 0.15 0.00 0.02 0.00 0.01 99.81 20:10:01 0 0.50 0.00 0.03 0.00 0.02 99.45 20:10:01 1 0.02 0.00 0.02 0.00 0.00 99.97 20:10:01 2 0.05 0.00 0.05 0.00 0.02 99.88 20:10:01 3 0.03 0.00 0.00 0.00 0.03 99.93 20:11:01 all 0.14 0.00 0.03 0.00 0.01 99.83 20:11:01 0 0.02 0.00 0.02 0.00 0.00 99.97 20:11:01 1 0.03 0.00 0.02 0.00 0.00 99.95 20:11:01 2 0.48 0.00 0.03 0.00 0.00 99.48 20:11:01 3 0.05 0.00 0.03 0.00 0.00 99.92 Average: all 0.15 0.00 0.04 0.00 0.03 99.79 Average: 0 0.38 0.00 0.03 0.00 0.02 99.57 Average: 1 0.07 0.00 0.03 0.00 0.04 99.86 Average: 2 0.10 0.00 0.03 0.00 0.02 99.85 Average: 3 0.03 0.00 0.05 0.00 0.03 99.88