---> uname -a: Linux 34b9d2412eda 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 764 115 0 957 1007 Swap: 1023 4 1019 ---> 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) 06/12/20 _x86_64_ (4 CPU) 05:39:43 LINUX RESTART 05:40:02 tps rtps wtps bread/s bwrtn/s 05:41:01 127.83 42.03 85.80 7533.43 40746.13 05:42:01 1.67 0.00 1.67 0.00 32.19 05:43:01 0.25 0.00 0.25 0.00 3.61 05:44:01 0.25 0.00 0.25 0.00 2.56 05:45:01 0.17 0.00 0.17 0.00 1.75 05:46:01 0.37 0.00 0.37 0.00 5.55 05:47:01 0.30 0.02 0.28 0.13 2.90 05:48:01 0.28 0.00 0.28 0.00 3.23 05:49:01 0.25 0.00 0.25 0.00 2.85 05:50:01 0.18 0.00 0.18 0.00 2.03 05:51:01 146.41 87.74 58.67 2869.48 26270.84 05:52:01 160.52 72.29 88.23 4494.44 19852.88 05:53:01 274.40 121.63 152.77 8386.23 38282.68 Average: 54.77 24.89 29.88 1784.61 9595.94 05:40:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:41:01 167268 1714288 91.11 2620 1161808 1114168 38.02 419180 1134780 116 05:42:01 171692 1709864 90.87 2620 1161840 1099384 37.52 417248 1133008 20 05:43:01 171872 1709684 90.87 2620 1161848 1096312 37.42 417252 1132860 8 05:44:01 172388 1709168 90.84 2620 1161848 1093240 37.31 417236 1132612 16 05:45:01 171152 1710404 90.90 2620 1161852 1093292 37.31 424300 1126808 12 05:46:01 172600 1708956 90.83 2620 1161860 1080092 36.86 423776 1126352 8 05:47:01 173168 1708388 90.80 2620 1161868 1080112 36.86 423380 1126352 8 05:48:01 173292 1708264 90.79 2620 1161876 1080112 36.86 415568 1134048 8 05:49:01 173664 1707892 90.77 2620 1161880 1080112 36.86 415572 1134048 8 05:50:01 173260 1708296 90.79 2620 1161888 1080112 36.86 415704 1134048 8 05:51:01 88316 1793240 95.31 2620 1133472 1513284 51.65 485424 1111924 38948 05:52:01 135632 1745924 92.79 2596 1058580 1309692 44.70 595904 934520 64472 05:53:01 129664 1751892 93.11 1504 987208 1299444 44.35 579896 871372 8 Average: 159536 1722020 91.52 2532 1138294 1155335 39.43 450034 1094826 7972 05:40:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 05:41:01 eth0 445.69 258.95 1057.47 88.34 0.00 0.00 0.00 05:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:41:01 docker0 1.64 1.49 0.33 3.36 0.00 0.00 0.00 05:42:01 eth0 2.81 0.88 1.03 0.38 0.00 0.00 0.00 05:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:43:01 eth0 3.11 0.57 0.73 0.39 0.00 0.00 0.00 05:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:44:01 eth0 1.73 0.83 0.84 0.59 0.00 0.00 0.00 05:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:45:01 eth0 1.12 0.30 0.32 0.23 0.00 0.00 0.00 05:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:46:01 eth0 0.73 0.42 0.41 0.26 0.00 0.00 0.00 05:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:47:01 eth0 0.07 0.08 0.00 0.01 0.00 0.00 0.00 05:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:48:01 eth0 0.10 0.07 0.01 0.01 0.00 0.00 0.00 05:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:49:01 eth0 0.07 0.05 0.01 0.00 0.00 0.00 0.00 05:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:50:01 eth0 0.02 0.03 0.00 0.00 0.00 0.00 0.00 05:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:51:01 eth0 156.97 95.72 3767.53 11.43 0.00 0.00 0.00 05:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:52:01 eth0 238.74 173.88 3454.23 88.62 0.00 0.00 0.00 05:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:52:01 docker0 23.68 23.04 2.74 50.80 0.00 0.00 0.00 05:53:01 eth0 224.82 154.07 2548.96 77.57 0.00 0.00 0.00 05:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:53:01 docker0 23.31 25.30 1.38 156.93 0.00 0.00 0.00 Average: eth0 82.34 52.51 833.19 20.53 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 3.75 3.84 0.34 16.27 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) 06/12/20 _x86_64_ (4 CPU) 05:39:43 LINUX RESTART 05:40:02 CPU %user %nice %system %iowait %steal %idle 05:41:01 all 14.72 0.00 5.77 9.32 0.01 70.18 05:41:01 0 14.12 0.00 6.85 9.17 0.02 69.84 05:41:01 1 13.89 0.00 5.52 9.21 0.02 71.37 05:41:01 2 14.59 0.00 5.79 8.41 0.03 71.17 05:41:01 3 16.29 0.00 4.92 10.49 0.02 68.28 05:42:01 all 0.14 0.00 0.04 0.00 0.00 99.82 05:42:01 0 0.03 0.00 0.03 0.00 0.00 99.93 05:42:01 1 0.43 0.00 0.05 0.00 0.00 99.52 05:42:01 2 0.03 0.00 0.02 0.00 0.00 99.95 05:42:01 3 0.05 0.00 0.03 0.00 0.00 99.92 05:43:01 all 0.16 0.00 0.02 0.00 0.00 99.81 05:43:01 0 0.03 0.00 0.03 0.00 0.00 99.93 05:43:01 1 0.53 0.00 0.02 0.00 0.00 99.45 05:43:01 2 0.03 0.00 0.05 0.00 0.00 99.92 05:43:01 3 0.05 0.00 0.02 0.00 0.00 99.93 05:44:01 all 0.17 0.00 0.02 0.00 0.00 99.80 05:44:01 0 0.03 0.00 0.02 0.00 0.00 99.95 05:44:01 1 0.58 0.00 0.02 0.00 0.00 99.40 05:44:01 2 0.05 0.00 0.07 0.00 0.00 99.88 05:44:01 3 0.02 0.00 0.03 0.00 0.00 99.95 05:45:01 all 0.17 0.00 0.03 0.00 0.00 99.80 05:45:01 0 0.02 0.00 0.02 0.00 0.00 99.97 05:45:01 1 0.53 0.00 0.03 0.00 0.00 99.43 05:45:01 2 0.05 0.00 0.02 0.00 0.00 99.93 05:45:01 3 0.08 0.00 0.03 0.00 0.00 99.88 05:46:01 all 0.15 0.00 0.06 0.00 0.00 99.78 05:46:01 0 0.02 0.00 0.02 0.00 0.00 99.97 05:46:01 1 0.33 0.00 0.13 0.00 0.00 99.53 05:46:01 2 0.15 0.00 0.03 0.00 0.00 99.82 05:46:01 3 0.10 0.00 0.05 0.00 0.00 99.85 05:47:01 all 0.15 0.00 0.02 0.00 0.00 99.83 05:47:01 0 0.00 0.00 0.02 0.00 0.00 99.98 05:47:01 1 0.03 0.00 0.02 0.00 0.00 99.95 05:47:01 2 0.05 0.00 0.02 0.00 0.00 99.93 05:47:01 3 0.52 0.00 0.02 0.00 0.00 99.47 05:48:01 all 0.15 0.00 0.02 0.00 0.00 99.83 05:48:01 0 0.02 0.00 0.00 0.00 0.00 99.98 05:48:01 1 0.03 0.00 0.03 0.00 0.00 99.93 05:48:01 2 0.02 0.00 0.05 0.00 0.00 99.93 05:48:01 3 0.52 0.00 0.02 0.00 0.00 99.47 05:49:01 all 0.15 0.00 0.02 0.00 0.00 99.83 05:49:01 0 0.02 0.00 0.02 0.00 0.00 99.97 05:49:01 1 0.03 0.00 0.03 0.00 0.00 99.93 05:49:01 2 0.03 0.00 0.02 0.00 0.00 99.95 05:49:01 3 0.48 0.00 0.03 0.00 0.00 99.48 05:50:01 all 0.05 0.00 0.02 0.00 0.00 99.92 05:50:01 0 0.03 0.00 0.02 0.00 0.00 99.95 05:50:01 1 0.07 0.00 0.02 0.00 0.00 99.92 05:50:01 2 0.03 0.00 0.02 0.00 0.00 99.95 05:50:01 3 0.10 0.00 0.02 0.00 0.00 99.88 05:51:01 all 5.34 0.00 2.95 0.89 0.02 90.80 05:51:01 0 5.34 0.00 2.85 0.30 0.03 91.47 05:51:01 1 5.35 0.00 3.07 0.40 0.02 91.16 05:51:01 2 5.02 0.00 3.39 1.14 0.00 90.45 05:51:01 3 5.62 0.00 2.49 1.75 0.02 90.12 05:52:01 all 7.89 0.00 4.87 2.18 0.02 85.04 05:52:01 0 7.95 0.00 5.45 2.69 0.02 83.90 05:52:01 1 7.75 0.00 4.62 2.28 0.03 85.32 05:52:01 2 8.04 0.00 4.93 1.16 0.02 85.86 05:52:01 3 7.85 0.00 4.49 2.58 0.03 85.05 05:53:01 all 11.25 0.00 7.04 4.06 0.02 77.63 05:53:01 0 9.94 0.00 6.56 3.51 0.02 79.98 05:53:01 1 11.75 0.00 7.51 4.76 0.02 75.96 05:53:01 2 13.13 0.00 6.80 5.55 0.03 74.48 05:53:01 3 10.17 0.00 7.30 2.38 0.02 80.13 Average: all 3.08 0.00 1.59 1.25 0.01 94.08 Average: 0 2.86 0.00 1.66 1.19 0.01 94.28 Average: 1 3.15 0.00 1.61 1.26 0.01 93.98 Average: 2 3.14 0.00 1.61 1.23 0.01 94.01 Average: 3 3.18 0.00 1.48 1.30 0.01 94.03