---> uname -a: Linux a796348e096d 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% /var/log/sa /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 ---> free -m: total used free shared buff/cache available Mem: 1837 676 123 0 1037 1055 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) 23:15:59 LINUX RESTART 23:17:01 tps rtps wtps bread/s bwrtn/s 23:18:01 25.00 8.86 16.14 4289.18 1993.39 23:19:01 0.25 0.00 0.25 0.00 3.78 23:20:01 0.30 0.00 0.30 0.00 3.95 23:21:01 0.25 0.00 0.25 0.00 3.36 23:22:01 0.23 0.00 0.23 0.00 3.03 23:23:01 0.30 0.02 0.28 0.13 3.51 23:24:02 0.25 0.00 0.25 0.00 2.70 23:25:01 0.27 0.00 0.27 0.00 3.01 23:26:01 0.23 0.00 0.23 0.00 2.98 Average: 3.02 0.99 2.03 478.04 225.08 23:17:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 23:18:01 163924 1717632 91.29 2620 1121592 1156764 39.48 473996 1084108 20 23:19:01 170908 1710648 90.92 2620 1121596 1074136 36.66 470200 1082460 20 23:20:01 170868 1710688 90.92 2620 1121604 1074172 36.66 470456 1082464 8 23:21:01 169276 1712280 91.00 2620 1121604 1074260 36.66 474476 1079868 8 23:22:01 170716 1710840 90.93 2620 1121608 1074128 36.66 474860 1078824 8 23:23:01 169320 1712236 91.00 2620 1121624 1074364 36.67 480864 1073476 12 23:24:02 170664 1710892 90.93 2620 1121624 1074180 36.66 473044 1080112 8 23:25:01 171176 1710380 90.90 2620 1121632 1074124 36.66 472912 1080112 16 23:26:01 171276 1710280 90.90 2620 1121636 1074124 36.66 472808 1080112 8 Average: 169792 1711764 90.98 2620 1121613 1083361 36.97 473735 1080171 12 23:17:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 23:18:01 eth0 42.56 34.97 336.67 28.46 0.00 0.00 0.00 23:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:18:01 docker0 1.70 1.55 0.33 3.31 0.00 0.00 0.00 23:19:01 eth0 1.78 0.28 0.40 0.14 0.00 0.00 0.00 23:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:20:01 eth0 1.46 0.61 0.60 0.46 0.00 0.00 0.00 23:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:21:01 eth0 0.47 0.27 0.27 0.20 0.00 0.00 0.00 23:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:22:01 eth0 0.80 0.18 0.14 0.07 0.00 0.00 0.00 23:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:23:01 eth0 0.40 0.28 0.32 0.20 0.00 0.00 0.00 23:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:24:02 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 23:24:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:24:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:25:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 23:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:26:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 23:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 5.33 4.11 37.71 3.29 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.19 0.17 0.04 0.37 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) 23:15:59 LINUX RESTART 23:17:01 CPU %user %nice %system %iowait %steal %idle 23:18:01 all 2.28 0.00 1.39 0.60 2.84 92.88 23:18:01 0 1.46 0.00 1.58 0.40 2.91 93.64 23:18:01 1 2.50 0.00 1.23 0.61 3.38 92.27 23:18:01 2 3.29 0.00 1.56 1.18 2.64 91.34 23:18:01 3 1.89 0.00 1.24 0.25 2.44 94.19 23:19:01 all 0.10 0.00 0.13 0.00 0.56 99.21 23:19:01 0 0.03 0.00 0.13 0.00 0.55 99.29 23:19:01 1 0.27 0.00 0.12 0.00 0.50 99.12 23:19:01 2 0.03 0.00 0.15 0.00 0.68 99.14 23:19:01 3 0.03 0.00 0.12 0.00 0.52 99.34 23:20:01 all 0.09 0.00 0.03 0.00 0.53 99.35 23:20:01 0 0.02 0.00 0.03 0.00 0.55 99.40 23:20:01 1 0.23 0.00 0.03 0.00 0.55 99.19 23:20:01 2 0.02 0.00 0.03 0.00 0.46 99.49 23:20:01 3 0.08 0.00 0.02 0.00 0.55 99.35 23:21:01 all 0.09 0.00 0.03 0.00 0.29 99.58 23:21:01 0 0.02 0.00 0.02 0.00 0.20 99.77 23:21:01 1 0.20 0.00 0.03 0.00 0.25 99.52 23:21:01 2 0.03 0.00 0.03 0.00 0.17 99.77 23:21:01 3 0.12 0.00 0.05 0.00 0.55 99.29 23:22:01 all 0.08 0.00 0.05 0.00 0.28 99.59 23:22:01 0 0.03 0.00 0.03 0.00 0.30 99.63 23:22:01 1 0.23 0.00 0.03 0.00 0.30 99.43 23:22:01 2 0.05 0.00 0.08 0.00 0.23 99.63 23:22:01 3 0.03 0.00 0.03 0.00 0.32 99.62 23:23:01 all 0.08 0.00 0.05 0.00 0.25 99.61 23:23:01 0 0.05 0.00 0.07 0.00 0.52 99.37 23:23:01 1 0.25 0.00 0.05 0.00 0.32 99.38 23:23:01 2 0.00 0.00 0.10 0.00 0.08 99.82 23:23:01 3 0.00 0.00 0.02 0.00 0.10 99.88 23:24:02 all 0.10 0.00 0.04 0.00 0.08 99.77 23:24:02 0 0.05 0.00 0.05 0.00 0.12 99.78 23:24:02 1 0.33 0.00 0.05 0.00 0.10 99.52 23:24:02 2 0.03 0.00 0.02 0.00 0.02 99.93 23:24:02 3 0.03 0.00 0.03 0.00 0.08 99.85 23:25:01 all 0.14 0.00 0.03 0.00 0.08 99.75 23:25:01 0 0.02 0.00 0.03 0.00 0.10 99.85 23:25:01 1 0.46 0.00 0.02 0.00 0.08 99.44 23:25:01 2 0.02 0.00 0.02 0.00 0.02 99.95 23:25:01 3 0.03 0.00 0.03 0.00 0.12 99.81 23:26:01 all 0.12 0.00 0.03 0.00 0.09 99.75 23:26:01 0 0.03 0.00 0.05 0.00 0.10 99.82 23:26:01 1 0.35 0.00 0.02 0.00 0.08 99.55 23:26:01 2 0.02 0.00 0.02 0.00 0.02 99.95 23:26:01 3 0.07 0.00 0.07 0.00 0.17 99.70 Average: all 0.34 0.00 0.20 0.07 0.56 98.83 Average: 0 0.19 0.00 0.22 0.04 0.59 98.95 Average: 1 0.54 0.00 0.18 0.07 0.62 98.60 Average: 2 0.39 0.00 0.22 0.13 0.48 98.78 Average: 3 0.25 0.00 0.18 0.03 0.54 99.00