---> uname -a: Linux eae40d1c9009 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% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-151 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-151@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 639 118 0 1078 1092 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) 06/10/20 _x86_64_ (4 CPU) 11:10:05 LINUX RESTART 11:11:01 tps rtps wtps bread/s bwrtn/s 11:12:01 6.18 1.75 4.43 59.92 135.02 11:13:01 1.70 0.00 1.70 0.00 33.67 11:14:01 0.32 0.00 0.32 0.00 4.86 11:15:01 0.30 0.00 0.30 0.00 4.06 11:16:01 0.33 0.00 0.33 0.00 4.86 11:17:01 0.37 0.02 0.35 0.13 6.13 11:18:01 0.58 0.00 0.58 0.00 7.58 11:19:01 0.27 0.00 0.27 0.00 3.18 Average: 1.25 0.22 1.03 7.51 24.92 11:11:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:12:01 171476 1710080 90.89 2620 1148880 1135560 38.75 400960 1148844 20 11:13:01 179712 1701844 90.45 2620 1148884 1073168 36.63 399048 1144496 16 11:14:01 178776 1702780 90.50 2620 1148888 1073352 36.63 399640 1144496 8 11:15:01 177756 1703800 90.55 2620 1148892 1073304 36.63 401472 1143864 8 11:16:01 178112 1703444 90.53 2620 1148896 1073268 36.63 407900 1137268 8 11:17:01 176244 1705312 90.63 2620 1148912 1073184 36.63 415960 1131360 8 11:18:01 176232 1705324 90.63 2620 1148912 1073124 36.62 408868 1138016 8 11:19:01 176120 1705436 90.64 2620 1148920 1073188 36.63 409108 1138016 8 Average: 176804 1704753 90.60 2620 1148898 1081019 36.89 405370 1140795 11 11:11:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 11:12:01 eth0 19.47 15.35 17.66 20.35 0.00 0.00 0.00 11:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:12:01 docker0 1.85 1.58 0.32 3.21 0.00 0.00 0.00 11:13:01 eth0 2.00 1.05 2.83 0.07 0.00 0.00 0.00 11:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:14:01 eth0 0.95 0.42 0.31 0.21 0.00 0.00 0.00 11:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:15:01 eth0 0.58 0.40 0.32 0.21 0.00 0.00 0.00 11:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:16:01 eth0 0.13 0.08 0.08 0.06 0.00 0.00 0.00 11:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:17:01 eth0 0.22 0.18 0.07 0.01 0.00 0.00 0.00 11:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:18:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 11:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:19:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 11:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.94 2.21 2.66 2.62 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.23 0.20 0.04 0.40 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) 06/10/20 _x86_64_ (4 CPU) 11:10:05 LINUX RESTART 11:11:01 CPU %user %nice %system %iowait %steal %idle 11:12:01 all 1.30 0.00 0.48 0.03 0.25 97.94 11:12:01 0 0.93 0.00 0.48 0.03 0.18 98.37 11:12:01 1 1.85 0.00 0.45 0.03 0.30 97.36 11:12:01 2 1.37 0.00 0.52 0.00 0.27 97.85 11:12:01 3 1.05 0.00 0.45 0.03 0.23 98.23 11:13:01 all 0.14 0.00 0.06 0.00 0.15 99.65 11:13:01 0 0.05 0.00 0.05 0.00 0.05 99.85 11:13:01 1 0.43 0.00 0.05 0.00 0.12 99.40 11:13:01 2 0.07 0.00 0.08 0.00 0.38 99.47 11:13:01 3 0.03 0.00 0.07 0.00 0.05 99.85 11:14:01 all 0.15 0.00 0.03 0.00 0.05 99.77 11:14:01 0 0.02 0.00 0.02 0.00 0.02 99.95 11:14:01 1 0.45 0.00 0.02 0.00 0.08 99.45 11:14:01 2 0.07 0.00 0.05 0.00 0.10 99.78 11:14:01 3 0.03 0.00 0.02 0.00 0.03 99.92 11:15:01 all 0.15 0.00 0.04 0.00 0.02 99.79 11:15:01 0 0.02 0.00 0.03 0.00 0.02 99.93 11:15:01 1 0.03 0.00 0.05 0.00 0.03 99.88 11:15:01 2 0.53 0.00 0.05 0.00 0.03 99.38 11:15:01 3 0.02 0.00 0.02 0.00 0.00 99.97 11:16:01 all 0.15 0.00 0.02 0.00 0.04 99.78 11:16:01 0 0.02 0.00 0.02 0.00 0.00 99.97 11:16:01 1 0.05 0.00 0.03 0.00 0.05 99.87 11:16:01 2 0.53 0.00 0.02 0.00 0.07 99.38 11:16:01 3 0.02 0.00 0.02 0.00 0.03 99.93 11:17:01 all 0.15 0.00 0.04 0.00 0.08 99.74 11:17:01 0 0.02 0.00 0.02 0.00 0.03 99.93 11:17:01 1 0.03 0.00 0.08 0.00 0.05 99.83 11:17:01 2 0.52 0.00 0.05 0.00 0.20 99.23 11:17:01 3 0.02 0.00 0.02 0.00 0.03 99.93 11:18:01 all 0.15 0.00 0.02 0.00 0.02 99.80 11:18:01 0 0.00 0.00 0.02 0.00 0.02 99.97 11:18:01 1 0.10 0.00 0.07 0.00 0.07 99.77 11:18:01 2 0.50 0.00 0.02 0.00 0.02 99.47 11:18:01 3 0.02 0.00 0.02 0.00 0.02 99.95 11:19:01 all 0.09 0.00 0.03 0.00 0.18 99.70 11:19:01 0 0.02 0.00 0.02 0.00 0.10 99.87 11:19:01 1 0.02 0.00 0.02 0.00 0.15 99.82 11:19:01 2 0.30 0.00 0.05 0.00 0.37 99.29 11:19:01 3 0.02 0.00 0.03 0.00 0.08 99.87 Average: all 0.28 0.00 0.09 0.00 0.10 99.52 Average: 0 0.13 0.00 0.08 0.00 0.05 99.73 Average: 1 0.37 0.00 0.10 0.00 0.11 99.42 Average: 2 0.49 0.00 0.10 0.00 0.18 99.23 Average: 3 0.15 0.00 0.08 0.00 0.06 99.71