---> uname -a: Linux 70820678d599 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 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 784 109 0 943 985 Swap: 1023 2 1021 ---> 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) 07/15/20 _x86_64_ (4 CPU) 00:38:30 LINUX RESTART 00:39:01 tps rtps wtps bread/s bwrtn/s 00:40:01 67.95 26.25 41.70 6410.25 4756.27 00:41:01 1.72 0.00 1.72 0.00 33.91 00:42:01 0.38 0.00 0.38 0.00 4.81 00:43:01 0.17 0.00 0.17 0.00 2.28 00:44:01 0.25 0.00 0.25 0.00 3.41 00:45:01 0.35 0.00 0.35 0.00 4.10 00:46:01 0.33 0.02 0.32 0.13 3.36 00:47:01 0.22 0.00 0.22 0.00 2.30 00:48:01 0.18 0.00 0.18 0.00 2.17 00:49:01 0.30 0.00 0.30 0.00 3.95 00:50:01 70.86 31.71 39.15 1444.26 19132.17 00:51:02 294.34 147.64 146.70 6476.83 35307.52 00:52:01 240.30 117.85 122.45 8762.37 30522.71 Average: 51.98 24.82 27.16 1770.20 6889.99 00:39:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:40:01 162956 1718600 91.34 2620 1123360 1113412 38.00 432912 1126796 116 00:41:01 169220 1712336 91.01 2620 1123392 1082180 36.93 430736 1123332 8 00:42:01 167500 1714056 91.10 2620 1123400 1082180 36.93 432604 1123124 8 00:43:01 166160 1715396 91.17 2620 1123400 1082456 36.94 434308 1123120 8 00:44:01 165704 1715852 91.19 2620 1123404 1082180 36.93 434936 1123112 8 00:45:01 163692 1717864 91.30 2620 1123412 1082252 36.94 440784 1119408 8 00:46:01 164228 1717328 91.27 2620 1123416 1082180 36.93 440368 1119324 8 00:47:01 164508 1717048 91.26 2620 1123424 1082180 36.93 427604 1132124 8 00:48:01 164376 1717180 91.26 2620 1123428 1082180 36.93 427608 1132124 8 00:49:01 164144 1717412 91.28 2620 1123440 1082180 36.93 426112 1133512 8 00:50:01 166780 1714776 91.14 2620 1049524 1297188 44.27 458756 1062528 103920 00:51:02 126512 1755044 93.28 2228 957376 1519916 51.87 617152 866928 79880 00:52:01 138032 1743524 92.66 1492 964500 1219528 41.62 634516 802100 240 Average: 160293 1721263 91.48 2503 1092729 1145386 39.09 464492 1075964 14171 00:39:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 00:40:01 eth0 474.33 259.50 1039.21 86.40 0.00 0.00 0.00 00:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:40:01 docker0 1.90 1.58 0.36 3.43 0.00 0.00 0.00 00:41:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 00:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:42:01 eth0 1.28 0.08 0.11 0.01 0.00 0.00 0.00 00:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:43:01 eth0 2.45 0.92 0.91 0.56 0.00 0.00 0.00 00:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:44:01 eth0 0.60 0.08 0.06 0.04 0.00 0.00 0.00 00:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:45:01 eth0 0.93 0.20 0.20 0.07 0.00 0.00 0.00 00:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:46:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 00:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:47:01 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 00:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:48:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 00:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:49:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 00:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:50:01 eth0 137.60 83.93 3763.55 9.41 0.00 0.00 0.00 00:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:51:02 eth0 249.71 183.16 3440.09 85.35 0.00 0.00 0.00 00:51:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:51:02 docker0 25.47 22.98 2.92 51.97 0.00 0.00 0.00 00:52:01 vethf28b2e2 0.00 0.05 0.00 0.00 0.00 0.00 0.00 00:52:01 eth0 1150.47 720.42 11051.94 265.98 0.00 0.00 0.00 00:52:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 00:52:01 docker0 67.50 67.50 6.14 234.20 0.00 0.00 0.00 Average: vethf28b2e2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 87.17 54.58 837.38 20.15 0.00 0.00 0.00 Average: lo 0.01 0.01 0.00 0.00 0.00 0.00 0.00 Average: docker0 5.11 5.11 0.46 17.74 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) 07/15/20 _x86_64_ (4 CPU) 00:38:30 LINUX RESTART 00:39:01 CPU %user %nice %system %iowait %steal %idle 00:40:01 all 12.84 0.00 4.21 2.00 0.01 80.94 00:40:01 0 12.21 0.00 4.79 0.79 0.02 82.20 00:40:01 1 14.17 0.00 3.90 3.11 0.02 78.80 00:40:01 2 13.12 0.00 3.85 1.24 0.02 81.78 00:40:01 3 11.87 0.00 4.29 2.85 0.00 80.99 00:41:01 all 0.15 0.00 0.04 0.00 0.00 99.81 00:41:01 0 0.48 0.00 0.03 0.00 0.00 99.48 00:41:01 1 0.05 0.00 0.03 0.00 0.00 99.92 00:41:01 2 0.03 0.00 0.05 0.00 0.00 99.92 00:41:01 3 0.02 0.00 0.02 0.00 0.00 99.97 00:42:01 all 0.16 0.00 0.04 0.00 0.00 99.80 00:42:01 0 0.53 0.00 0.05 0.00 0.00 99.42 00:42:01 1 0.03 0.00 0.03 0.00 0.00 99.93 00:42:01 2 0.07 0.00 0.05 0.00 0.00 99.88 00:42:01 3 0.03 0.00 0.03 0.00 0.02 99.92 00:43:01 all 0.18 0.00 0.05 0.00 0.00 99.77 00:43:01 0 0.55 0.00 0.03 0.00 0.00 99.42 00:43:01 1 0.05 0.00 0.07 0.00 0.00 99.88 00:43:01 2 0.08 0.00 0.03 0.00 0.00 99.88 00:43:01 3 0.02 0.00 0.03 0.00 0.00 99.95 00:44:01 all 0.16 0.00 0.03 0.00 0.00 99.81 00:44:01 0 0.52 0.00 0.03 0.00 0.00 99.45 00:44:01 1 0.07 0.00 0.07 0.00 0.00 99.87 00:44:01 2 0.05 0.00 0.03 0.00 0.00 99.92 00:44:01 3 0.03 0.00 0.03 0.00 0.00 99.93 00:45:01 all 0.15 0.00 0.04 0.00 0.00 99.81 00:45:01 0 0.53 0.00 0.03 0.00 0.00 99.43 00:45:01 1 0.05 0.00 0.07 0.00 0.00 99.88 00:45:01 2 0.02 0.00 0.02 0.00 0.00 99.97 00:45:01 3 0.00 0.00 0.00 0.00 0.00 100.00 00:46:01 all 0.16 0.00 0.05 0.00 0.00 99.78 00:46:01 0 0.52 0.00 0.02 0.00 0.00 99.47 00:46:01 1 0.07 0.00 0.15 0.00 0.02 99.77 00:46:01 2 0.02 0.00 0.02 0.00 0.00 99.97 00:46:01 3 0.03 0.00 0.03 0.00 0.02 99.92 00:47:01 all 0.15 0.00 0.04 0.00 0.00 99.81 00:47:01 0 0.50 0.00 0.02 0.00 0.00 99.48 00:47:01 1 0.07 0.00 0.05 0.00 0.00 99.88 00:47:01 2 0.03 0.00 0.03 0.00 0.00 99.93 00:47:01 3 0.02 0.00 0.02 0.00 0.00 99.97 00:48:01 all 0.16 0.00 0.02 0.00 0.00 99.82 00:48:01 0 0.52 0.00 0.02 0.00 0.00 99.47 00:48:01 1 0.07 0.00 0.05 0.00 0.00 99.88 00:48:01 2 0.02 0.00 0.02 0.00 0.00 99.97 00:48:01 3 0.03 0.00 0.03 0.00 0.00 99.93 00:49:01 all 0.15 0.00 0.03 0.00 0.00 99.81 00:49:01 0 0.53 0.00 0.03 0.00 0.00 99.43 00:49:01 1 0.03 0.00 0.03 0.00 0.00 99.93 00:49:01 2 0.03 0.00 0.05 0.00 0.00 99.92 00:49:01 3 0.03 0.00 0.03 0.00 0.00 99.93 00:50:01 all 4.64 0.00 2.67 0.44 0.05 92.20 00:50:01 0 4.64 0.00 2.70 0.35 0.05 92.26 00:50:01 1 4.96 0.00 2.30 0.05 0.07 92.63 00:50:01 2 4.33 0.00 2.67 0.34 0.05 92.62 00:50:01 3 4.61 0.00 3.02 1.01 0.03 91.34 00:51:02 all 11.70 0.00 7.72 2.99 0.13 77.47 00:51:02 0 11.14 0.00 8.33 2.89 0.10 77.54 00:51:02 1 12.37 0.00 8.69 4.42 0.12 74.41 00:51:02 2 11.48 0.00 7.07 3.38 0.17 77.91 00:51:02 3 11.81 0.00 6.78 1.30 0.12 80.00 00:52:01 all 10.13 0.00 6.97 3.94 0.12 78.84 00:52:01 0 9.61 0.00 7.10 3.53 0.14 79.62 00:52:01 1 8.69 0.00 7.18 4.59 0.12 79.43 00:52:01 2 10.65 0.00 7.00 5.03 0.12 77.20 00:52:01 3 11.57 0.00 6.61 2.60 0.12 79.10 Average: all 3.10 0.00 1.66 0.71 0.02 94.50 Average: 0 3.22 0.00 1.76 0.57 0.02 94.42 Average: 1 3.10 0.00 1.72 0.92 0.03 94.23 Average: 2 3.04 0.00 1.59 0.76 0.03 94.59 Average: 3 3.05 0.00 1.59 0.59 0.02 94.75