---> uname -a: Linux 20e0e192d054 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-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 642 114 0 1079 1088 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) 08/24/20 _x86_64_ (4 CPU) 02:57:32 LINUX RESTART 02:58:01 tps rtps wtps bread/s bwrtn/s 02:59:01 138.51 55.51 83.00 7884.08 39948.38 03:00:01 1.55 0.00 1.55 0.00 29.38 03:01:01 0.35 0.02 0.33 0.13 4.61 03:02:01 0.58 0.12 0.47 2.13 8.53 03:03:01 0.20 0.00 0.20 0.00 2.78 03:04:01 0.37 0.00 0.37 0.00 4.86 03:05:02 0.27 0.02 0.25 0.13 2.98 03:06:01 0.19 0.00 0.19 0.00 1.98 03:07:01 70.70 44.25 26.45 4667.35 13487.43 Average: 23.68 11.12 12.56 1397.81 5956.42 02:58:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:59:01 184628 1696928 90.19 2620 1128848 1171096 39.97 430756 1105912 116 03:00:01 189956 1691600 89.90 2620 1128852 1127756 38.49 428120 1104260 12 03:01:01 195124 1686432 89.63 2620 1128860 1079128 36.83 425704 1102516 12 03:02:01 192216 1689340 89.78 2620 1129000 1077144 36.76 428412 1102512 20 03:03:01 192704 1688852 89.76 2620 1129004 1077108 36.76 431456 1099348 16 03:04:01 192220 1689336 89.78 2620 1129008 1077012 36.76 442872 1088336 16 03:05:02 190696 1690860 89.86 2620 1129016 1077060 36.76 461216 1071768 20 03:06:01 191500 1690056 89.82 2620 1129020 1076928 36.75 458740 1073560 20 03:07:01 181936 1699620 90.33 2620 1076704 1283720 43.81 462220 1055132 9108 Average: 190109 1691447 89.90 2620 1123146 1116328 38.10 441055 1089260 1038 02:58:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:59:01 eth0 213.44 164.22 1029.16 88.06 0.00 0.00 0.00 02:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:59:01 docker0 1.46 1.36 0.29 3.49 0.00 0.00 0.00 03:00:01 eth0 1.12 0.73 2.85 0.08 0.00 0.00 0.00 03:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:01:01 eth0 0.83 0.08 0.08 0.01 0.00 0.00 0.00 03:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:02:01 eth0 1.01 0.65 0.55 0.36 0.00 0.00 0.00 03:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:03:01 eth0 0.88 0.42 0.31 0.24 0.00 0.00 0.00 03:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:04:01 eth0 0.58 0.17 0.17 0.07 0.00 0.00 0.00 03:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:05:02 eth0 0.65 0.33 0.30 0.20 0.00 0.00 0.00 03:05:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:05:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:06:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 03:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:07:01 eth0 79.12 51.62 2325.80 8.64 0.00 0.00 0.00 03:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 33.15 24.31 373.95 10.88 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.16 0.15 0.03 0.39 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) 08/24/20 _x86_64_ (4 CPU) 02:57:32 LINUX RESTART 02:58:01 CPU %user %nice %system %iowait %steal %idle 02:59:01 all 14.54 0.00 8.74 4.83 16.78 55.11 02:59:01 0 12.78 0.00 8.09 5.48 18.43 55.23 02:59:01 1 16.64 0.00 8.94 6.98 15.85 51.59 02:59:01 2 14.70 0.00 10.24 3.56 16.19 55.31 02:59:01 3 14.12 0.00 7.73 3.38 16.58 58.18 03:00:01 all 0.16 0.00 0.06 0.00 0.28 99.50 03:00:01 0 0.03 0.00 0.02 0.00 0.18 99.77 03:00:01 1 0.08 0.00 0.08 0.00 0.32 99.52 03:00:01 2 0.45 0.00 0.07 0.00 0.38 99.10 03:00:01 3 0.07 0.00 0.07 0.00 0.27 99.60 03:01:01 all 0.12 0.00 0.05 0.00 0.30 99.53 03:01:01 0 0.02 0.00 0.03 0.00 0.18 99.77 03:01:01 1 0.05 0.00 0.07 0.00 0.28 99.60 03:01:01 2 0.38 0.00 0.08 0.00 0.37 99.17 03:01:01 3 0.05 0.00 0.05 0.02 0.33 99.55 03:02:01 all 0.11 0.00 0.05 0.01 0.29 99.54 03:02:01 0 0.07 0.00 0.08 0.00 0.55 99.30 03:02:01 1 0.03 0.00 0.03 0.02 0.15 99.77 03:02:01 2 0.32 0.00 0.05 0.00 0.35 99.29 03:02:01 3 0.02 0.00 0.03 0.00 0.10 99.85 03:03:01 all 0.12 0.00 0.04 0.00 0.12 99.71 03:03:01 0 0.03 0.00 0.02 0.00 0.13 99.82 03:03:01 1 0.05 0.00 0.05 0.00 0.17 99.73 03:03:01 2 0.38 0.00 0.02 0.00 0.13 99.47 03:03:01 3 0.02 0.00 0.07 0.00 0.08 99.83 03:04:01 all 0.11 0.00 0.05 0.00 0.33 99.50 03:04:01 0 0.02 0.00 0.02 0.00 0.22 99.75 03:04:01 1 0.07 0.00 0.05 0.00 0.53 99.35 03:04:01 2 0.35 0.00 0.03 0.00 0.28 99.33 03:04:01 3 0.03 0.00 0.12 0.00 0.27 99.58 03:05:02 all 0.12 0.00 0.07 0.00 0.21 99.60 03:05:02 0 0.00 0.00 0.02 0.00 0.03 99.95 03:05:02 1 0.05 0.00 0.07 0.00 0.20 99.68 03:05:02 2 0.38 0.00 0.05 0.00 0.50 99.07 03:05:02 3 0.03 0.00 0.15 0.00 0.13 99.68 03:06:01 all 0.13 0.00 0.03 0.00 0.06 99.78 03:06:01 0 0.03 0.00 0.02 0.00 0.00 99.95 03:06:01 1 0.05 0.00 0.05 0.00 0.05 99.85 03:06:01 2 0.39 0.00 0.03 0.00 0.07 99.51 03:06:01 3 0.05 0.00 0.02 0.00 0.08 99.85 03:07:01 all 3.19 0.00 1.79 0.96 4.71 89.36 03:07:01 0 3.18 0.00 1.73 0.63 5.05 89.40 03:07:01 1 4.51 0.00 2.08 2.09 4.66 86.67 03:07:01 2 2.39 0.00 1.31 0.08 4.31 91.91 03:07:01 3 2.67 0.00 2.04 1.05 4.82 89.42 Average: all 2.08 0.00 1.22 0.65 2.59 93.46 Average: 0 1.84 0.00 1.14 0.70 2.82 93.51 Average: 1 2.36 0.00 1.25 1.00 2.44 92.95 Average: 2 2.22 0.00 1.34 0.41 2.54 93.50 Average: 3 1.92 0.00 1.16 0.50 2.55 93.87