---> uname -a: Linux 7e6fdf2ceda9 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 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-154 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-154@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 663 127 0 1046 1068 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) 06/11/20 _x86_64_ (4 CPU) 21:44:56 LINUX RESTART 21:46:01 tps rtps wtps bread/s bwrtn/s 21:47:01 2.48 0.00 2.48 0.00 53.89 21:48:01 0.15 0.00 0.15 0.00 2.15 21:49:01 0.27 0.00 0.27 0.00 3.63 21:50:01 0.23 0.00 0.23 0.00 2.70 21:51:01 0.35 0.00 0.35 0.00 4.93 21:52:01 0.33 0.02 0.32 0.13 2.93 21:53:01 0.23 0.00 0.23 0.00 2.07 21:54:01 0.43 0.00 0.43 0.00 5.23 21:55:01 0.63 0.00 0.63 0.00 7.74 21:56:01 0.72 0.00 0.72 0.00 8.51 Average: 0.58 0.00 0.58 0.01 9.38 21:46:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 21:47:01 194744 1686812 89.65 2620 1118492 1083764 36.99 412948 1115484 20 21:48:01 191700 1689856 89.81 2620 1118496 1081708 36.92 417140 1114868 8 21:49:01 190936 1690620 89.85 2620 1118504 1081880 36.92 417872 1114868 8 21:50:01 189612 1691944 89.92 2620 1118504 1081928 36.92 419796 1114348 8 21:51:01 189852 1691704 89.91 2620 1118508 1081924 36.92 424596 1109280 8 21:52:01 187272 1694284 90.05 2620 1118520 1081840 36.92 427220 1109280 12 21:53:01 187236 1694320 90.05 2620 1118524 1081840 36.92 418424 1118080 8 21:54:01 187584 1693972 90.03 2620 1118532 1081840 36.92 418440 1118080 8 21:55:01 187624 1693932 90.03 2620 1118536 1081840 36.92 418444 1118080 8 21:56:01 185216 1696340 90.16 2620 1118544 1081900 36.92 419564 1119064 8 Average: 189178 1692378 89.95 2620 1118516 1082046 36.93 419444 1115143 10 21:46:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 21:47:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 21:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:48:01 eth0 0.35 0.08 0.03 0.01 0.00 0.00 0.00 21:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:49:01 eth0 1.67 0.63 1.04 0.22 0.00 0.00 0.00 21:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:50:01 eth0 0.50 0.27 0.27 0.20 0.00 0.00 0.00 21:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:51:01 eth0 0.27 0.18 0.14 0.07 0.00 0.00 0.00 21:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:52:01 eth0 0.07 0.05 0.01 0.00 0.00 0.00 0.00 21:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:53:01 eth0 0.02 0.03 0.00 0.00 0.00 0.00 0.00 21:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:54:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 21:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:55:01 eth0 0.07 0.07 0.01 0.01 0.00 0.00 0.00 21:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:56:01 eth0 0.20 0.15 0.08 0.07 0.00 0.00 0.00 21:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 0.33 0.16 0.16 0.06 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 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) 06/11/20 _x86_64_ (4 CPU) 21:44:56 LINUX RESTART 21:46:01 CPU %user %nice %system %iowait %steal %idle 21:47:01 all 0.17 0.00 0.05 0.00 0.00 99.78 21:47:01 0 0.03 0.00 0.02 0.00 0.00 99.95 21:47:01 1 0.47 0.00 0.05 0.00 0.00 99.48 21:47:01 2 0.12 0.00 0.08 0.00 0.00 99.80 21:47:01 3 0.10 0.00 0.05 0.00 0.00 99.85 21:48:01 all 0.17 0.00 0.03 0.00 0.00 99.80 21:48:01 0 0.02 0.00 0.02 0.00 0.00 99.97 21:48:01 1 0.03 0.00 0.03 0.00 0.00 99.93 21:48:01 2 0.08 0.00 0.03 0.00 0.00 99.88 21:48:01 3 0.53 0.00 0.02 0.00 0.00 99.45 21:49:01 all 0.16 0.00 0.04 0.00 0.00 99.80 21:49:01 0 0.03 0.00 0.03 0.00 0.00 99.93 21:49:01 1 0.05 0.00 0.03 0.00 0.00 99.92 21:49:01 2 0.08 0.00 0.08 0.00 0.00 99.83 21:49:01 3 0.45 0.00 0.02 0.00 0.00 99.53 21:50:01 all 0.13 0.00 0.04 0.00 0.00 99.82 21:50:01 0 0.05 0.00 0.02 0.00 0.00 99.93 21:50:01 1 0.05 0.00 0.05 0.00 0.02 99.88 21:50:01 2 0.05 0.00 0.03 0.00 0.00 99.92 21:50:01 3 0.38 0.00 0.07 0.00 0.00 99.55 21:51:01 all 0.16 0.00 0.03 0.00 0.00 99.81 21:51:01 0 0.00 0.00 0.02 0.00 0.00 99.98 21:51:01 1 0.05 0.00 0.08 0.00 0.00 99.87 21:51:01 2 0.07 0.00 0.03 0.00 0.00 99.90 21:51:01 3 0.52 0.00 0.03 0.00 0.02 99.43 21:52:01 all 0.16 0.00 0.04 0.00 0.00 99.80 21:52:01 0 0.02 0.00 0.00 0.00 0.00 99.98 21:52:01 1 0.07 0.00 0.10 0.00 0.00 99.83 21:52:01 2 0.03 0.00 0.03 0.00 0.00 99.93 21:52:01 3 0.50 0.00 0.02 0.00 0.00 99.48 21:53:01 all 0.14 0.00 0.04 0.00 0.00 99.81 21:53:01 0 0.00 0.00 0.02 0.00 0.00 99.98 21:53:01 1 0.07 0.00 0.07 0.00 0.00 99.87 21:53:01 2 0.05 0.00 0.02 0.00 0.00 99.93 21:53:01 3 0.48 0.00 0.05 0.00 0.00 99.47 21:54:01 all 0.03 0.00 0.04 0.00 0.00 99.93 21:54:01 0 0.02 0.00 0.00 0.00 0.00 99.98 21:54:01 1 0.05 0.00 0.05 0.00 0.00 99.90 21:54:01 2 0.05 0.00 0.05 0.00 0.00 99.90 21:54:01 3 0.02 0.00 0.03 0.00 0.00 99.95 21:55:01 all 0.07 0.00 0.04 0.00 0.00 99.89 21:55:01 0 0.02 0.00 0.02 0.00 0.00 99.97 21:55:01 1 0.07 0.00 0.08 0.00 0.00 99.85 21:55:01 2 0.17 0.00 0.05 0.00 0.00 99.78 21:55:01 3 0.02 0.00 0.02 0.00 0.00 99.97 21:56:01 all 0.15 0.00 0.04 0.00 0.00 99.81 21:56:01 0 0.02 0.00 0.03 0.00 0.00 99.95 21:56:01 1 0.02 0.00 0.03 0.00 0.00 99.95 21:56:01 2 0.53 0.00 0.05 0.00 0.00 99.42 21:56:01 3 0.03 0.00 0.05 0.00 0.00 99.92 Average: all 0.13 0.00 0.04 0.00 0.00 99.82 Average: 0 0.02 0.00 0.02 0.00 0.00 99.96 Average: 1 0.09 0.00 0.06 0.00 0.00 99.85 Average: 2 0.12 0.00 0.05 0.00 0.00 99.83 Average: 3 0.30 0.00 0.03 0.00 0.00 99.66