---> uname -a: Linux ffc194509d15 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-172 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/xfoundry_device-modbus-go_PR-172@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 663 136 0 1037 1067 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) 09/09/20 _x86_64_ (4 CPU) 22:18:57 LINUX RESTART (4 CPU) 22:20:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 22:21:01 6.43 1.45 4.98 0.00 97.49 143.17 0.00 22:22:01 0.33 0.00 0.33 0.00 0.00 5.00 0.00 22:23:01 0.23 0.00 0.23 0.00 0.00 2.33 0.00 22:24:01 0.27 0.00 0.27 0.00 0.00 3.33 0.00 22:25:01 0.28 0.00 0.28 0.00 0.00 4.56 0.00 22:26:01 0.32 0.02 0.30 0.00 0.13 3.90 0.00 22:27:01 0.55 0.00 0.55 0.00 0.00 6.66 0.00 22:28:01 0.72 0.00 0.72 0.00 0.00 8.89 0.00 22:29:01 0.60 0.00 0.60 0.00 0.00 6.80 0.00 22:30:01 0.57 0.00 0.57 0.00 0.00 6.68 0.00 22:31:01 52.85 42.96 9.89 0.00 4286.28 2805.34 0.00 Average: 5.74 4.04 1.70 0.00 398.75 272.56 0.00 22:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 22:21:01 151640 0 586820 31.19 2620 1140476 1111664 37.94 431344 1139328 20 22:22:01 155852 0 582604 30.96 2620 1140480 1084164 37.00 430992 1136072 12 22:23:01 155792 0 582656 30.97 2620 1140488 1084188 37.00 431264 1136072 8 22:24:01 154524 0 583924 31.03 2620 1140488 1084224 37.00 435288 1133412 12 22:25:01 155560 0 582880 30.98 2620 1140496 1074984 36.69 440624 1126976 20 22:26:01 155692 0 582736 30.97 2620 1140508 1074948 36.69 440540 1126976 12 22:27:01 155104 0 583324 31.00 2620 1140508 1075104 36.69 430716 1137680 8 22:28:01 154972 0 583448 31.01 2620 1140516 1075116 36.69 430788 1137680 8 22:29:01 156268 0 582148 30.94 2620 1140520 1074888 36.68 429700 1137680 8 22:30:01 155908 0 582500 30.96 2620 1140528 1075012 36.69 428736 1138984 8 22:31:01 79392 0 695756 36.98 2620 1103788 1509040 51.50 495044 1119540 63148 Average: 148246 0 593527 31.54 2620 1137163 1120303 38.23 438640 1133673 5751 22:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 22:21:01 eth0 22.41 17.50 19.48 29.03 0.00 0.00 0.00 0.00 22:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:21:01 docker0 2.10 1.60 0.36 3.73 0.00 0.00 0.00 0.00 22:22:01 eth0 1.78 0.70 1.04 0.19 0.00 0.00 0.00 0.00 22:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:23:01 eth0 1.00 0.37 0.32 0.23 0.00 0.00 0.00 0.00 22:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:24:01 eth0 0.57 0.43 0.31 0.21 0.00 0.00 0.00 0.00 22:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:25:01 eth0 0.25 0.17 0.08 0.07 0.00 0.00 0.00 0.00 22:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:26:01 eth0 0.67 0.10 0.12 0.01 0.00 0.00 0.00 0.00 22:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:27:01 eth0 1.12 0.40 0.32 0.18 0.00 0.00 0.00 0.00 22:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:28:01 eth0 0.53 0.48 0.27 0.24 0.00 0.00 0.00 0.00 22:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:29:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 0.00 22:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:30:01 eth0 0.20 0.17 0.08 0.07 0.00 0.00 0.00 0.00 22:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:31:01 eth0 79.78 62.80 736.71 8.74 0.00 0.00 0.00 0.00 22:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:31:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 9.86 7.57 69.01 3.54 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 0.19 0.15 0.03 0.34 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) 09/09/20 _x86_64_ (4 CPU) 22:18:57 LINUX RESTART (4 CPU) 22:20:01 CPU %user %nice %system %iowait %steal %idle 22:21:01 all 1.01 0.00 0.46 0.03 0.01 98.49 22:21:01 0 0.97 0.00 0.58 0.08 0.02 98.35 22:21:01 1 1.22 0.00 0.32 0.02 0.00 98.45 22:21:01 2 1.12 0.00 0.48 0.02 0.00 98.38 22:21:01 3 0.73 0.00 0.45 0.02 0.02 98.78 22:22:01 all 0.12 0.00 0.04 0.00 0.00 99.85 22:22:01 0 0.03 0.00 0.03 0.00 0.00 99.93 22:22:01 1 0.33 0.00 0.05 0.00 0.00 99.62 22:22:01 2 0.07 0.00 0.03 0.00 0.00 99.90 22:22:01 3 0.03 0.00 0.03 0.00 0.00 99.93 22:23:01 all 0.16 0.00 0.03 0.00 0.00 99.81 22:23:01 0 0.05 0.00 0.03 0.00 0.00 99.92 22:23:01 1 0.52 0.00 0.02 0.00 0.00 99.47 22:23:01 2 0.05 0.00 0.03 0.00 0.00 99.92 22:23:01 3 0.03 0.00 0.03 0.00 0.00 99.93 22:24:01 all 0.15 0.00 0.03 0.00 0.00 99.82 22:24:01 0 0.02 0.00 0.02 0.00 0.00 99.97 22:24:01 1 0.53 0.00 0.03 0.00 0.00 99.43 22:24:01 2 0.03 0.00 0.03 0.00 0.00 99.93 22:24:01 3 0.03 0.00 0.03 0.00 0.00 99.93 22:25:01 all 0.14 0.00 0.05 0.00 0.01 99.80 22:25:01 0 0.02 0.00 0.02 0.00 0.00 99.97 22:25:01 1 0.47 0.00 0.08 0.00 0.02 99.43 22:25:01 2 0.07 0.00 0.05 0.00 0.02 99.87 22:25:01 3 0.02 0.00 0.05 0.00 0.00 99.93 22:26:01 all 0.15 0.00 0.02 0.00 0.00 99.83 22:26:01 0 0.02 0.00 0.03 0.00 0.00 99.95 22:26:01 1 0.52 0.00 0.02 0.00 0.00 99.47 22:26:01 2 0.03 0.00 0.03 0.00 0.00 99.93 22:26:01 3 0.02 0.00 0.02 0.00 0.00 99.97 22:27:01 all 0.16 0.00 0.03 0.00 0.00 99.81 22:27:01 0 0.03 0.00 0.02 0.00 0.00 99.95 22:27:01 1 0.53 0.00 0.02 0.00 0.00 99.45 22:27:01 2 0.07 0.00 0.05 0.00 0.00 99.88 22:27:01 3 0.02 0.00 0.03 0.00 0.00 99.95 22:28:01 all 0.15 0.00 0.04 0.00 0.00 99.81 22:28:01 0 0.02 0.00 0.05 0.00 0.00 99.93 22:28:01 1 0.52 0.00 0.02 0.00 0.00 99.47 22:28:01 2 0.03 0.00 0.05 0.00 0.00 99.92 22:28:01 3 0.05 0.00 0.03 0.00 0.00 99.92 22:29:01 all 0.17 0.00 0.02 0.00 0.00 99.80 22:29:01 0 0.02 0.00 0.02 0.00 0.00 99.97 22:29:01 1 0.55 0.00 0.03 0.00 0.00 99.42 22:29:01 2 0.07 0.00 0.02 0.00 0.00 99.92 22:29:01 3 0.05 0.00 0.03 0.00 0.00 99.92 22:30:01 all 0.14 0.00 0.03 0.00 0.00 99.83 22:30:01 0 0.02 0.00 0.00 0.00 0.00 99.98 22:30:01 1 0.50 0.00 0.07 0.00 0.00 99.43 22:30:01 2 0.03 0.00 0.03 0.00 0.00 99.93 22:30:01 3 0.00 0.00 0.02 0.00 0.00 99.98 22:31:01 all 2.45 0.00 1.51 0.97 0.00 95.07 22:31:01 0 1.90 0.00 1.72 0.17 0.00 96.21 22:31:01 1 3.00 0.00 1.36 1.12 0.00 94.51 22:31:01 2 2.34 0.00 1.39 1.55 0.00 94.72 22:31:01 3 2.54 0.00 1.59 1.04 0.00 94.84 Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.44 0.00 0.21 0.09 0.00 99.27 Average: 0 0.28 0.00 0.23 0.02 0.00 99.47 Average: 1 0.79 0.00 0.18 0.10 0.00 98.93 Average: 2 0.35 0.00 0.20 0.14 0.00 99.30 Average: 3 0.32 0.00 0.21 0.10 0.00 99.37