---> uname -a: Linux 8605f0b53d6c 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-169 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-169@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 615 126 0 1095 1117 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) 08/31/20 _x86_64_ (4 CPU) 20:14:54 LINUX RESTART 20:16:01 tps rtps wtps bread/s bwrtn/s 20:17:01 26.65 9.90 16.74 4314.38 2014.83 20:18:01 0.25 0.00 0.25 0.00 3.78 20:19:01 0.20 0.00 0.20 0.00 2.20 20:20:01 0.30 0.00 0.30 0.00 3.65 20:21:02 0.30 0.00 0.30 0.00 4.56 20:22:01 0.30 0.02 0.29 0.14 3.71 20:23:01 0.28 0.00 0.28 0.00 2.98 20:24:01 0.18 0.00 0.18 0.00 2.32 20:25:01 0.30 0.00 0.30 0.00 3.35 20:26:01 0.23 0.00 0.23 0.00 3.25 20:27:01 74.19 44.84 29.35 4642.87 15390.27 Average: 9.40 4.99 4.41 816.19 1589.13 20:16:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 20:17:01 162428 1719128 91.37 2620 1178400 1134820 38.73 407504 1150740 16 20:18:01 172788 1708768 90.82 2620 1178404 1066324 36.39 402600 1146420 8 20:19:01 171648 1709908 90.88 2620 1178412 1066640 36.40 403996 1146424 8 20:20:01 170536 1711020 90.94 2620 1178412 1066652 36.40 407872 1143840 16 20:21:02 171340 1710216 90.89 2620 1178416 1066472 36.40 406808 1143800 12 20:22:01 170940 1710616 90.91 2620 1178428 1066680 36.40 407904 1143800 16 20:23:01 171184 1710372 90.90 2620 1178428 1066596 36.40 405468 1145736 16 20:24:01 170332 1711224 90.95 2620 1178436 1066804 36.41 406372 1145736 8 20:25:01 171248 1710308 90.90 2620 1178440 1066648 36.40 405368 1145736 20 20:26:01 170936 1710620 90.92 2620 1178448 1066764 36.41 395908 1155744 8 20:27:01 142472 1739084 92.43 2620 1100620 1516816 51.77 483604 1073380 5180 Average: 167805 1713751 91.08 2620 1171349 1113747 38.01 412128 1140123 483 20:16:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 20:17:01 eth0 55.03 38.22 347.07 33.53 0.00 0.00 0.00 20:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:17:01 docker0 2.03 1.70 0.33 3.57 0.00 0.00 0.00 20:18:01 eth0 1.30 0.08 0.11 0.01 0.00 0.00 0.00 20:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:19:01 eth0 3.15 0.77 0.98 0.59 0.00 0.00 0.00 20:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:20:01 eth0 1.60 0.72 0.88 0.58 0.00 0.00 0.00 20:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:21:02 eth0 1.20 0.18 0.23 0.08 0.00 0.00 0.00 20:21:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:21:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:22:01 eth0 2.22 0.64 0.90 0.58 0.00 0.00 0.00 20:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:23:01 eth0 2.81 0.50 0.71 0.39 0.00 0.00 0.00 20:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:24:01 eth0 1.77 0.82 0.82 0.59 0.00 0.00 0.00 20:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:25:01 eth0 1.57 0.35 0.36 0.17 0.00 0.00 0.00 20:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:26:01 eth0 0.72 0.37 0.41 0.29 0.00 0.00 0.00 20:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:27:01 eth0 84.25 53.45 2326.64 9.38 0.00 0.00 0.00 20:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 14.17 8.75 244.19 4.21 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.18 0.15 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) 08/31/20 _x86_64_ (4 CPU) 20:14:54 LINUX RESTART 20:16:01 CPU %user %nice %system %iowait %steal %idle 20:17:01 all 2.57 0.00 1.72 0.52 1.49 93.70 20:17:01 0 1.97 0.00 1.59 0.07 1.79 94.58 20:17:01 1 2.97 0.00 2.11 0.44 1.28 93.21 20:17:01 2 2.35 0.00 1.85 1.46 1.41 92.94 20:17:01 3 2.97 0.00 1.31 0.13 1.49 94.09 20:18:01 all 0.13 0.00 0.04 0.00 0.09 99.74 20:18:01 0 0.02 0.00 0.03 0.00 0.13 99.82 20:18:01 1 0.08 0.00 0.07 0.00 0.15 99.70 20:18:01 2 0.38 0.00 0.03 0.00 0.07 99.52 20:18:01 3 0.03 0.00 0.03 0.00 0.00 99.93 20:19:01 all 0.14 0.00 0.03 0.00 0.12 99.70 20:19:01 0 0.03 0.00 0.03 0.00 0.13 99.80 20:19:01 1 0.07 0.00 0.05 0.00 0.18 99.70 20:19:01 2 0.42 0.00 0.03 0.00 0.05 99.50 20:19:01 3 0.05 0.00 0.02 0.00 0.12 99.82 20:20:01 all 0.13 0.00 0.04 0.00 0.07 99.75 20:20:01 0 0.02 0.00 0.03 0.00 0.02 99.93 20:20:01 1 0.07 0.00 0.05 0.00 0.17 99.72 20:20:01 2 0.35 0.00 0.03 0.00 0.03 99.58 20:20:01 3 0.08 0.00 0.03 0.00 0.07 99.82 20:21:02 all 0.15 0.00 0.05 0.00 0.05 99.75 20:21:02 0 0.02 0.00 0.02 0.00 0.07 99.90 20:21:02 1 0.28 0.00 0.03 0.00 0.07 99.62 20:21:02 2 0.25 0.00 0.10 0.00 0.07 99.58 20:21:02 3 0.03 0.00 0.03 0.00 0.03 99.90 20:22:01 all 0.17 0.00 0.03 0.00 0.21 99.59 20:22:01 0 0.03 0.00 0.03 0.00 0.10 99.83 20:22:01 1 0.49 0.00 0.05 0.00 0.19 99.27 20:22:01 2 0.08 0.00 0.07 0.00 0.39 99.46 20:22:01 3 0.05 0.00 0.02 0.00 0.17 99.76 20:23:01 all 0.14 0.00 0.03 0.00 0.12 99.71 20:23:01 0 0.05 0.00 0.03 0.00 0.27 99.65 20:23:01 1 0.47 0.00 0.05 0.00 0.12 99.37 20:23:01 2 0.03 0.00 0.02 0.00 0.10 99.85 20:23:01 3 0.02 0.00 0.02 0.00 0.00 99.97 20:24:01 all 0.15 0.00 0.03 0.00 0.08 99.73 20:24:01 0 0.02 0.00 0.02 0.00 0.05 99.92 20:24:01 1 0.48 0.00 0.02 0.00 0.08 99.42 20:24:01 2 0.05 0.00 0.07 0.00 0.15 99.73 20:24:01 3 0.07 0.00 0.02 0.00 0.03 99.88 20:25:01 all 0.14 0.00 0.03 0.00 0.07 99.76 20:25:01 0 0.05 0.00 0.02 0.00 0.10 99.83 20:25:01 1 0.38 0.00 0.02 0.00 0.05 99.55 20:25:01 2 0.07 0.00 0.03 0.00 0.08 99.82 20:25:01 3 0.05 0.00 0.05 0.00 0.05 99.85 20:26:01 all 0.15 0.00 0.04 0.00 0.03 99.78 20:26:01 0 0.02 0.00 0.03 0.00 0.02 99.93 20:26:01 1 0.50 0.00 0.03 0.00 0.03 99.43 20:26:01 2 0.10 0.00 0.08 0.00 0.05 99.77 20:26:01 3 0.02 0.00 0.02 0.00 0.00 99.97 20:27:01 all 3.57 0.00 2.04 0.94 2.74 90.71 20:27:01 0 2.81 0.00 1.58 0.05 2.73 92.83 20:27:01 1 3.21 0.00 2.02 0.94 3.13 90.70 20:27:01 2 3.29 0.00 2.40 0.49 2.64 91.18 20:27:01 3 4.95 0.00 2.17 2.31 2.47 88.10 Average: all 0.67 0.00 0.37 0.13 0.46 98.37 Average: 0 0.46 0.00 0.31 0.01 0.49 98.74 Average: 1 0.81 0.00 0.41 0.12 0.49 98.16 Average: 2 0.67 0.00 0.43 0.18 0.45 98.28 Average: 3 0.75 0.00 0.33 0.22 0.40 98.30