---> uname -a: Linux 67a3b702eeee 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: 2933.396 BogoMIPS: 5866.79 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 8.5G 41.5G 17% / 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 8.5G 41.5G 17% /etc/resolv.conf /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hostname /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hosts /dev/vda1 50.0G 8.5G 41.5G 17% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_device-modbus-go_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_device-modbus-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 784 98 0 954 984 Swap: 1023 3 1020 ---> 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 24: eth0@if25: 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) 09/02/20 _x86_64_ (4 CPU) 08:26:23 LINUX RESTART 08:27:01 tps rtps wtps bread/s bwrtn/s 08:28:01 55.93 14.36 41.57 4852.85 4692.94 08:29:01 1.63 0.00 1.63 0.00 32.29 08:30:01 0.20 0.00 0.20 0.00 2.47 08:31:01 0.32 0.00 0.32 0.00 3.51 08:32:01 21.92 1.51 20.41 290.19 14673.08 08:33:02 326.42 171.23 155.19 7309.19 39691.12 08:34:01 229.46 99.71 129.75 7789.89 30988.87 Average: 90.71 40.94 49.77 2884.57 12849.84 08:27:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:28:01 163756 1717800 91.30 2620 1172228 1122896 38.32 380388 1176708 116 08:29:01 167772 1713784 91.08 2620 1172232 1095724 37.40 380256 1173300 8 08:30:01 169308 1712248 91.00 2620 1172240 1078452 36.81 380932 1172184 8 08:31:01 167148 1714408 91.12 2620 1172240 1078440 36.81 382784 1171964 8 08:32:01 75104 1806452 96.01 2620 1175748 1503404 51.31 570084 1067572 47496 08:33:02 125144 1756412 93.35 2064 964944 1544740 52.72 602844 882996 80104 08:34:01 116056 1765500 93.83 1560 980664 1331192 45.43 604016 860848 8 Average: 140613 1740943 92.53 2389 1115757 1250693 42.68 471615 1072225 18250 08:27:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:28:01 eth0 303.36 177.17 743.01 75.53 0.00 0.00 0.00 08:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:28:01 docker0 1.66 1.26 0.33 3.63 0.00 0.00 0.00 08:29:01 eth0 2.81 1.02 1.81 0.09 0.00 0.00 0.00 08:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:30:01 eth0 1.00 0.52 0.32 0.21 0.00 0.00 0.00 08:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:31:01 eth0 0.60 0.32 0.28 0.20 0.00 0.00 0.00 08:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:31:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:32:01 eth0 118.18 80.84 3755.99 7.40 0.00 0.00 0.00 08:32:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:32:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:33:02 eth0 225.01 167.29 3439.69 64.51 0.00 0.00 0.00 08:33:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:33:02 docker0 22.97 20.46 2.64 51.24 0.00 0.00 0.00 08:34:01 vethaff0dfc 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:34:01 eth0 1011.16 656.20 11071.03 238.42 0.00 0.00 0.00 08:34:01 veth3dd6873 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:34:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 Average: vethaff0dfc 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 142.43 92.43 1559.42 33.58 0.00 0.00 0.00 Average: veth3dd6873 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 0.02 0.02 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) 09/02/20 _x86_64_ (4 CPU) 08:26:23 LINUX RESTART 08:27:01 CPU %user %nice %system %iowait %steal %idle 08:28:01 all 7.40 0.00 2.97 2.27 0.01 87.36 08:28:01 0 7.17 0.00 3.27 2.13 0.02 87.42 08:28:01 1 6.94 0.00 2.91 4.87 0.02 85.27 08:28:01 2 7.83 0.00 2.97 2.05 0.00 87.16 08:28:01 3 7.67 0.00 2.68 0.05 0.02 89.58 08:29:01 all 0.15 0.00 0.04 0.00 0.00 99.81 08:29:01 0 0.03 0.00 0.03 0.00 0.00 99.93 08:29:01 1 0.03 0.00 0.02 0.00 0.00 99.95 08:29:01 2 0.17 0.00 0.07 0.00 0.00 99.77 08:29:01 3 0.37 0.00 0.05 0.00 0.00 99.58 08:30:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:30:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:30:01 1 0.03 0.00 0.03 0.00 0.00 99.93 08:30:01 2 0.05 0.00 0.03 0.00 0.00 99.92 08:30:01 3 0.50 0.00 0.05 0.00 0.00 99.45 08:31:01 all 0.15 0.00 0.02 0.00 0.00 99.82 08:31:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:31:01 1 0.02 0.00 0.02 0.00 0.00 99.97 08:31:01 2 0.03 0.00 0.02 0.00 0.00 99.95 08:31:01 3 0.53 0.00 0.02 0.00 0.00 99.45 08:32:01 all 2.62 0.00 1.45 0.06 0.01 95.87 08:32:01 0 2.69 0.00 1.34 0.00 0.00 95.97 08:32:01 1 2.49 0.00 1.45 0.12 0.00 95.94 08:32:01 2 2.82 0.00 1.42 0.00 0.03 95.73 08:32:01 3 2.46 0.00 1.59 0.10 0.02 95.83 08:33:02 all 12.72 0.00 8.56 3.42 0.08 75.22 08:33:02 0 12.37 0.00 8.61 3.44 0.07 75.51 08:33:02 1 12.70 0.00 8.08 2.40 0.08 76.74 08:33:02 2 13.40 0.00 9.79 2.62 0.05 74.14 08:33:02 3 12.42 0.00 7.77 5.21 0.08 74.52 08:34:01 all 9.60 0.00 6.65 4.74 0.03 78.98 08:34:01 0 9.09 0.00 6.18 3.54 0.03 81.15 08:34:01 1 8.96 0.00 6.83 3.26 0.05 80.90 08:34:01 2 11.67 0.00 6.67 6.69 0.03 74.94 08:34:01 3 8.66 0.00 6.91 5.50 0.03 78.90 Average: all 4.65 0.00 2.79 1.48 0.02 91.06 Average: 0 4.45 0.00 2.76 1.29 0.02 91.48 Average: 1 4.42 0.00 2.74 1.51 0.02 91.31 Average: 2 5.10 0.00 2.97 1.60 0.02 90.32 Average: 3 4.62 0.00 2.70 1.53 0.02 91.13