---> uname -a: Linux 4e88cad4683d 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: 2933.436 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% /w/workspace/xfoundry_device-modbus-go_PR-162@tmp /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 ---> free -m: total used free shared buff/cache available Mem: 1837 634 125 0 1077 1097 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) 08:07:06 LINUX RESTART 08:08:02 tps rtps wtps bread/s bwrtn/s 08:09:01 26.55 9.89 16.66 4358.14 2386.40 08:10:01 1.57 0.00 1.57 0.00 28.71 08:11:01 0.22 0.00 0.22 0.00 2.35 08:12:01 0.27 0.00 0.27 0.00 3.48 08:13:01 0.20 0.00 0.20 0.00 2.91 08:14:01 0.37 0.02 0.35 0.13 4.83 08:15:01 0.25 0.00 0.25 0.00 2.83 08:16:01 0.17 0.00 0.17 0.00 1.75 08:17:01 0.28 0.00 0.28 0.00 3.35 08:18:01 0.28 0.00 0.28 0.00 3.03 08:19:01 43.68 43.19 0.50 4407.12 13.18 Average: 6.68 4.82 1.86 791.80 219.74 08:08:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:09:01 172724 1708832 90.82 2620 1152112 1122376 38.30 409460 1140080 20 08:10:01 178276 1703280 90.53 2620 1152116 1080648 36.88 407828 1136668 8 08:11:01 177152 1704404 90.58 2620 1152124 1080912 36.89 410656 1135236 8 08:12:01 176988 1704568 90.59 2620 1152124 1080648 36.88 413324 1132692 16 08:13:01 176360 1705196 90.63 2620 1152132 1080732 36.88 418868 1127528 8 08:14:01 176040 1705516 90.64 2620 1152140 1080816 36.89 419480 1127528 12 08:15:01 177044 1704512 90.59 2620 1152144 1080648 36.88 416500 1129576 8 08:16:01 176216 1705340 90.63 2620 1152152 1080868 36.89 405224 1141784 12 08:17:01 176912 1704644 90.60 2620 1152156 1080712 36.88 404484 1141784 12 08:18:01 176380 1705176 90.63 2620 1152164 1080808 36.89 403184 1143456 8 08:19:01 99436 1782120 94.72 2620 1185592 1282024 43.75 437156 1179004 74048 Average: 169412 1712144 91.00 2620 1155178 1102836 37.64 413288 1139576 6742 08:08:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:09:01 eth0 50.78 38.81 342.38 34.94 0.00 0.00 0.00 08:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:09:01 docker0 2.08 1.64 0.36 3.85 0.00 0.00 0.00 08:10:01 eth0 1.07 0.08 0.09 0.01 0.00 0.00 0.00 08:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:11:01 eth0 1.12 0.68 0.62 0.40 0.00 0.00 0.00 08:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:12:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 08:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:13:01 eth0 0.23 0.12 0.08 0.07 0.00 0.00 0.00 08:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:14:01 eth0 0.98 0.43 0.38 0.21 0.00 0.00 0.00 08:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:15:01 eth0 0.80 0.07 0.07 0.01 0.00 0.00 0.00 08:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:16:01 eth0 0.53 0.42 0.27 0.21 0.00 0.00 0.00 08:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:17:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 08:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:18:01 eth0 0.30 0.25 0.14 0.08 0.00 0.00 0.00 08:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:19:01 eth0 56.73 39.19 1257.52 6.34 0.00 0.00 0.00 08:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 10.19 7.25 145.38 3.80 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.19 0.15 0.03 0.35 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) 08:07:06 LINUX RESTART 08:08:02 CPU %user %nice %system %iowait %steal %idle 08:09:01 all 2.26 0.00 1.43 0.49 0.04 95.78 08:09:01 0 1.99 0.00 1.24 1.29 0.03 95.44 08:09:01 1 2.64 0.00 1.46 0.32 0.03 95.54 08:09:01 2 2.03 0.00 1.77 0.26 0.07 95.87 08:09:01 3 2.37 0.00 1.28 0.09 0.03 96.24 08:10:01 all 0.10 0.00 0.04 0.00 0.00 99.85 08:10:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:10:01 1 0.07 0.00 0.05 0.00 0.02 99.87 08:10:01 2 0.30 0.00 0.03 0.00 0.00 99.67 08:10:01 3 0.03 0.00 0.03 0.00 0.00 99.93 08:11:01 all 0.12 0.00 0.04 0.00 0.00 99.84 08:11:01 0 0.03 0.00 0.03 0.00 0.00 99.93 08:11:01 1 0.07 0.00 0.03 0.00 0.00 99.90 08:11:01 2 0.32 0.00 0.02 0.00 0.00 99.67 08:11:01 3 0.07 0.00 0.05 0.00 0.00 99.88 08:12:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:12:01 0 0.00 0.00 0.02 0.00 0.00 99.98 08:12:01 1 0.02 0.00 0.03 0.00 0.00 99.95 08:12:01 2 0.50 0.00 0.03 0.00 0.02 99.45 08:12:01 3 0.03 0.00 0.03 0.00 0.02 99.92 08:13:01 all 0.05 0.00 0.07 0.00 0.00 99.88 08:13:01 0 0.02 0.00 0.02 0.00 0.00 99.97 08:13:01 1 0.03 0.00 0.18 0.00 0.00 99.78 08:13:01 2 0.13 0.00 0.03 0.00 0.00 99.83 08:13:01 3 0.05 0.00 0.03 0.00 0.00 99.92 08:14:01 all 0.12 0.00 0.04 0.00 0.00 99.85 08:14:01 0 0.00 0.00 0.02 0.00 0.00 99.98 08:14:01 1 0.03 0.00 0.03 0.00 0.00 99.93 08:14:01 2 0.38 0.00 0.07 0.00 0.00 99.55 08:14:01 3 0.05 0.00 0.03 0.00 0.00 99.92 08:15:01 all 0.15 0.00 0.03 0.00 0.01 99.80 08:15:01 0 0.02 0.00 0.02 0.00 0.02 99.95 08:15:01 1 0.00 0.00 0.02 0.00 0.00 99.98 08:15:01 2 0.53 0.00 0.03 0.00 0.02 99.42 08:15:01 3 0.05 0.00 0.07 0.00 0.03 99.85 08:16:01 all 0.16 0.00 0.03 0.00 0.00 99.81 08:16:01 0 0.05 0.00 0.00 0.00 0.00 99.95 08:16:01 1 0.02 0.00 0.02 0.00 0.00 99.97 08:16:01 2 0.53 0.00 0.03 0.00 0.00 99.43 08:16:01 3 0.03 0.00 0.03 0.00 0.00 99.93 08:17:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:17:01 0 0.03 0.00 0.05 0.00 0.02 99.90 08:17:01 1 0.42 0.00 0.03 0.00 0.02 99.53 08:17:01 2 0.12 0.00 0.02 0.00 0.00 99.87 08:17:01 3 0.05 0.00 0.02 0.00 0.02 99.92 08:18:01 all 0.15 0.00 0.02 0.00 0.00 99.83 08:18:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:18:01 1 0.52 0.00 0.02 0.00 0.00 99.47 08:18:01 2 0.03 0.00 0.03 0.00 0.00 99.93 08:18:01 3 0.02 0.00 0.03 0.00 0.00 99.95 08:19:01 all 1.39 0.00 0.62 0.96 0.01 97.01 08:19:01 0 1.52 0.00 0.70 1.25 0.02 96.51 08:19:01 1 1.32 0.00 0.73 0.82 0.00 97.13 08:19:01 2 1.35 0.00 0.55 1.72 0.00 96.38 08:19:01 3 1.38 0.00 0.52 0.05 0.02 98.03 Average: all 0.43 0.00 0.21 0.13 0.01 99.21 Average: 0 0.33 0.00 0.19 0.23 0.01 99.24 Average: 1 0.46 0.00 0.24 0.10 0.01 99.19 Average: 2 0.56 0.00 0.24 0.18 0.01 99.01 Average: 3 0.37 0.00 0.19 0.01 0.01 99.41