---> uname -a: Linux cf3e7e545a1f 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: 2933.396 BogoMIPS: 5866.79 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 641 121 0 1074 1090 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) 18:38:17 LINUX RESTART 18:39:03 tps rtps wtps bread/s bwrtn/s 18:40:01 29.75 11.06 18.69 4573.75 2427.32 18:41:01 1.48 0.00 1.48 0.00 27.58 18:42:01 0.28 0.00 0.28 0.00 3.80 18:43:01 0.25 0.00 0.25 0.00 3.25 18:44:01 0.15 0.00 0.15 0.00 1.97 18:45:01 0.35 0.00 0.35 0.00 4.73 18:46:01 0.27 0.02 0.25 0.13 2.57 18:47:01 58.77 44.96 13.82 4664.27 7884.47 Average: 11.34 6.99 4.35 1140.88 1290.18 18:39:03 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 18:40:01 172704 1708852 90.82 2604 1146424 1114720 38.04 418840 1130228 24 18:41:01 179252 1702304 90.47 2604 1146428 1065972 36.38 416784 1126872 8 18:42:01 178252 1703304 90.53 2604 1146436 1066164 36.39 417824 1126876 8 18:43:01 176380 1705176 90.63 2604 1146436 1066248 36.39 420164 1126340 8 18:44:01 176488 1705068 90.62 2604 1146440 1066068 36.38 423988 1122516 8 18:45:01 176816 1704740 90.60 2604 1146448 1066008 36.38 423744 1122464 8 18:46:01 176048 1705508 90.64 2604 1146452 1066164 36.39 424580 1122464 8 18:47:01 76676 1804880 95.92 2604 1148624 1507840 51.46 525368 1101708 96140 Average: 164077 1717479 91.28 2604 1146711 1127398 38.48 433912 1122434 12027 18:39:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 18:40:01 eth0 138.18 96.18 463.48 39.91 0.00 0.00 0.00 18:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:40:01 docker0 2.33 1.69 0.37 3.70 0.00 0.00 0.00 18:41:01 eth0 0.77 0.03 0.06 0.00 0.00 0.00 0.00 18:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:42:01 eth0 1.00 0.42 0.35 0.21 0.00 0.00 0.00 18:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:43:01 eth0 0.52 0.38 0.37 0.20 0.00 0.00 0.00 18:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:44:01 eth0 0.23 0.20 0.08 0.07 0.00 0.00 0.00 18:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:45:01 eth0 0.70 0.20 0.12 0.01 0.00 0.00 0.00 18:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:46:01 eth0 1.10 0.37 0.32 0.20 0.00 0.00 0.00 18:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:47:01 eth0 86.38 60.51 2324.37 8.20 0.00 0.00 0.00 18:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 28.16 19.47 348.29 5.96 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.28 0.20 0.04 0.45 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) 18:38:17 LINUX RESTART 18:39:03 CPU %user %nice %system %iowait %steal %idle 18:40:01 all 3.29 0.00 1.52 0.60 0.01 94.59 18:40:01 0 3.29 0.00 1.70 0.09 0.00 94.93 18:40:01 1 2.92 0.00 1.11 0.21 0.00 95.77 18:40:01 2 2.94 0.00 1.85 1.64 0.00 93.57 18:40:01 3 4.01 0.00 1.44 0.43 0.03 94.09 18:41:01 all 0.14 0.00 0.03 0.00 0.00 99.83 18:41:01 0 0.03 0.00 0.05 0.00 0.00 99.92 18:41:01 1 0.35 0.00 0.05 0.00 0.02 99.58 18:41:01 2 0.02 0.00 0.02 0.00 0.00 99.97 18:41:01 3 0.13 0.00 0.02 0.00 0.00 99.85 18:42:01 all 0.16 0.00 0.03 0.00 0.00 99.81 18:42:01 0 0.05 0.00 0.03 0.00 0.00 99.92 18:42:01 1 0.50 0.00 0.03 0.00 0.00 99.47 18:42:01 2 0.03 0.00 0.02 0.00 0.00 99.95 18:42:01 3 0.05 0.00 0.03 0.00 0.00 99.92 18:43:01 all 0.16 0.00 0.02 0.00 0.00 99.82 18:43:01 0 0.05 0.00 0.02 0.00 0.00 99.93 18:43:01 1 0.55 0.00 0.02 0.00 0.00 99.43 18:43:01 2 0.02 0.00 0.02 0.00 0.00 99.97 18:43:01 3 0.02 0.00 0.03 0.00 0.00 99.95 18:44:01 all 0.17 0.00 0.05 0.00 0.00 99.78 18:44:01 0 0.05 0.00 0.03 0.00 0.00 99.92 18:44:01 1 0.55 0.00 0.10 0.00 0.00 99.35 18:44:01 2 0.02 0.00 0.02 0.00 0.00 99.97 18:44:01 3 0.05 0.00 0.02 0.00 0.00 99.93 18:45:01 all 0.14 0.00 0.03 0.00 0.00 99.83 18:45:01 0 0.02 0.00 0.03 0.00 0.00 99.95 18:45:01 1 0.52 0.00 0.07 0.00 0.00 99.42 18:45:01 2 0.03 0.00 0.02 0.00 0.00 99.95 18:45:01 3 0.02 0.00 0.02 0.00 0.00 99.97 18:46:01 all 0.16 0.00 0.02 0.00 0.00 99.82 18:46:01 0 0.02 0.00 0.02 0.00 0.00 99.97 18:46:01 1 0.53 0.00 0.02 0.00 0.00 99.45 18:46:01 2 0.03 0.00 0.02 0.00 0.00 99.95 18:46:01 3 0.05 0.00 0.03 0.00 0.00 99.92 18:47:01 all 3.06 0.00 1.40 0.92 0.01 94.61 18:47:01 0 2.93 0.00 1.57 1.00 0.00 94.50 18:47:01 1 2.92 0.00 1.24 0.38 0.00 95.46 18:47:01 2 2.35 0.00 1.32 0.82 0.02 95.49 18:47:01 3 4.06 0.00 1.44 1.50 0.00 93.00 Average: all 0.90 0.00 0.38 0.19 0.00 98.53 Average: 0 0.79 0.00 0.43 0.14 0.00 98.65 Average: 1 1.10 0.00 0.32 0.07 0.00 98.50 Average: 2 0.67 0.00 0.40 0.30 0.00 98.63 Average: 3 1.03 0.00 0.37 0.24 0.00 98.35