---> uname -a: Linux 98dc83269bce 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: 2933.442 BogoMIPS: 5866.88 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-162 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-162@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 664 128 0 1044 1067 Swap: 1023 1 1022 ---> 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) 09/02/20 _x86_64_ (4 CPU) 02:41:14 LINUX RESTART 02:42:01 tps rtps wtps bread/s bwrtn/s 02:43:01 32.21 11.72 20.49 4492.63 2191.88 02:44:01 0.68 0.00 0.68 0.00 15.34 02:45:01 0.45 0.00 0.45 0.00 7.33 02:46:01 0.15 0.00 0.15 0.00 1.73 02:47:01 0.28 0.00 0.28 0.00 3.43 02:48:01 0.35 0.00 0.35 0.00 4.78 02:49:01 0.32 0.02 0.30 0.13 3.73 02:50:01 0.20 0.00 0.20 0.00 2.88 02:51:01 0.62 0.00 0.62 0.00 6.66 02:52:01 0.67 0.00 0.67 0.00 7.79 02:53:01 0.63 0.00 0.63 0.00 6.80 Average: 3.33 1.07 2.26 409.23 205.15 02:42:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:43:01 163104 1718452 91.33 2620 1134660 1107996 37.81 440880 1118180 24 02:44:01 166764 1714792 91.14 2620 1134664 1080696 36.88 439848 1115688 16 02:45:01 166268 1715288 91.16 2620 1134672 1080864 36.89 442112 1114500 16 02:46:01 163836 1717720 91.29 2620 1134672 1081016 36.89 444796 1113916 8 02:47:01 164936 1716620 91.23 2620 1134676 1080848 36.89 445480 1112048 20 02:48:01 164848 1716708 91.24 2620 1134688 1080896 36.89 447068 1110892 16 02:49:01 165572 1715984 91.20 2620 1134692 1080764 36.88 446260 1110892 12 02:50:01 164520 1717036 91.26 2620 1134700 1080920 36.89 441076 1117084 8 02:51:01 165736 1715820 91.19 2620 1134704 1080764 36.88 440128 1117084 8 02:52:01 165468 1716088 91.21 2620 1134712 1080848 36.89 438872 1118900 8 02:53:01 165760 1715796 91.19 2620 1134712 1080764 36.88 438572 1118900 8 Average: 165165 1716391 91.22 2620 1134687 1083307 36.97 442281 1115280 13 02:42:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:43:01 eth0 129.10 81.97 451.01 40.28 0.00 0.00 0.00 02:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:43:01 docker0 1.68 1.28 0.33 3.63 0.00 0.00 0.00 02:44:01 eth0 0.78 0.07 0.06 0.01 0.00 0.00 0.00 02:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:45:01 eth0 1.18 0.58 0.65 0.22 0.00 0.00 0.00 02:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:01 eth0 0.43 0.27 0.27 0.17 0.00 0.00 0.00 02:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:47:01 eth0 0.22 0.17 0.08 0.10 0.00 0.00 0.00 02:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:48:01 eth0 1.03 0.40 0.38 0.17 0.00 0.00 0.00 02:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:49:01 eth0 0.78 0.08 0.06 0.04 0.00 0.00 0.00 02:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:50:01 eth0 0.44 0.32 0.27 0.20 0.00 0.00 0.00 02:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:51:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 02:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:52:01 eth0 0.22 0.17 0.08 0.07 0.00 0.00 0.00 02:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:53:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 02:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 12.24 7.67 41.25 3.76 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.15 0.12 0.03 0.33 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) 02:41:14 LINUX RESTART 02:42:01 CPU %user %nice %system %iowait %steal %idle 02:43:01 all 2.94 0.00 1.66 0.84 0.01 94.56 02:43:01 0 3.21 0.00 1.89 1.82 0.00 93.08 02:43:01 1 2.99 0.00 1.47 0.27 0.02 95.25 02:43:01 2 2.62 0.00 1.37 0.77 0.00 95.23 02:43:01 3 2.91 0.00 1.87 0.49 0.00 94.73 02:44:01 all 0.14 0.00 0.04 0.00 0.00 99.82 02:44:01 0 0.30 0.00 0.03 0.00 0.00 99.67 02:44:01 1 0.07 0.00 0.08 0.00 0.02 99.83 02:44:01 2 0.03 0.00 0.03 0.00 0.00 99.93 02:44:01 3 0.17 0.00 0.03 0.00 0.00 99.80 02:45:01 all 0.07 0.00 0.04 0.00 0.00 99.89 02:45:01 0 0.15 0.00 0.03 0.00 0.00 99.82 02:45:01 1 0.08 0.00 0.05 0.00 0.00 99.87 02:45:01 2 0.02 0.00 0.03 0.00 0.00 99.95 02:45:01 3 0.03 0.00 0.02 0.00 0.00 99.95 02:46:01 all 0.14 0.00 0.03 0.00 0.00 99.83 02:46:01 0 0.48 0.00 0.03 0.00 0.00 99.48 02:46:01 1 0.05 0.00 0.03 0.00 0.00 99.92 02:46:01 2 0.03 0.00 0.02 0.00 0.02 99.93 02:46:01 3 0.02 0.00 0.03 0.00 0.00 99.95 02:47:01 all 0.16 0.00 0.04 0.00 0.00 99.80 02:47:01 0 0.50 0.00 0.03 0.00 0.00 99.47 02:47:01 1 0.08 0.00 0.08 0.00 0.00 99.83 02:47:01 2 0.03 0.00 0.05 0.00 0.00 99.92 02:47:01 3 0.02 0.00 0.02 0.00 0.00 99.97 02:48:01 all 0.15 0.00 0.03 0.00 0.00 99.82 02:48:01 0 0.52 0.00 0.03 0.00 0.00 99.45 02:48:01 1 0.02 0.00 0.07 0.00 0.00 99.92 02:48:01 2 0.03 0.00 0.02 0.00 0.00 99.95 02:48:01 3 0.02 0.00 0.02 0.00 0.00 99.97 02:49:01 all 0.16 0.00 0.02 0.00 0.00 99.82 02:49:01 0 0.18 0.00 0.02 0.00 0.00 99.80 02:49:01 1 0.05 0.00 0.03 0.00 0.00 99.92 02:49:01 2 0.38 0.00 0.03 0.00 0.00 99.58 02:49:01 3 0.02 0.00 0.02 0.00 0.00 99.97 02:50:01 all 0.11 0.00 0.05 0.00 0.00 99.85 02:50:01 0 0.07 0.00 0.03 0.00 0.00 99.90 02:50:01 1 0.05 0.00 0.05 0.00 0.00 99.90 02:50:01 2 0.29 0.00 0.07 0.00 0.00 99.64 02:50:01 3 0.02 0.00 0.03 0.00 0.00 99.95 02:51:01 all 0.03 0.00 0.03 0.00 0.00 99.94 02:51:01 0 0.03 0.00 0.03 0.00 0.00 99.93 02:51:01 1 0.05 0.00 0.03 0.00 0.00 99.92 02:51:01 2 0.03 0.00 0.02 0.00 0.00 99.95 02:51:01 3 0.02 0.00 0.03 0.00 0.00 99.95 02:52:01 all 0.08 0.00 0.03 0.00 0.00 99.88 02:52:01 0 0.02 0.00 0.07 0.00 0.00 99.92 02:52:01 1 0.05 0.00 0.03 0.00 0.00 99.92 02:52:01 2 0.23 0.00 0.03 0.00 0.00 99.73 02:52:01 3 0.02 0.00 0.00 0.00 0.00 99.98 02:53:01 all 0.15 0.00 0.03 0.00 0.00 99.82 02:53:01 0 0.02 0.00 0.02 0.00 0.00 99.97 02:53:01 1 0.05 0.00 0.05 0.00 0.00 99.90 02:53:01 2 0.52 0.00 0.02 0.00 0.00 99.47 02:53:01 3 0.03 0.00 0.03 0.00 0.00 99.93 Average: all 0.38 0.00 0.18 0.08 0.00 99.37 Average: 0 0.50 0.00 0.20 0.17 0.00 99.13 Average: 1 0.32 0.00 0.18 0.02 0.00 99.47 Average: 2 0.38 0.00 0.15 0.07 0.00 99.39 Average: 3 0.30 0.00 0.19 0.04 0.00 99.47