---> uname -a: Linux 5f55b1a33ed4 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/gexfoundry_device-mqtt-go_PR-150@tmp /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-150 ---> free -m: total used free shared buff/cache available Mem: 1837 649 131 0 1056 1083 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) 06/11/20 _x86_64_ (4 CPU) 00:14:46 LINUX RESTART 00:15:01 tps rtps wtps bread/s bwrtn/s 00:16:01 186.30 99.10 87.20 11696.17 40191.51 00:17:01 1.40 0.00 1.40 0.00 26.29 00:18:01 0.35 0.00 0.35 0.00 5.66 00:19:01 0.25 0.00 0.25 0.00 2.56 00:20:01 0.32 0.00 0.32 0.00 4.88 00:21:01 0.35 0.00 0.35 0.00 4.60 00:22:01 0.22 0.02 0.20 0.13 1.93 00:23:02 0.27 0.00 0.27 0.00 3.66 00:24:01 0.30 0.00 0.30 0.00 3.05 00:25:01 0.27 0.00 0.27 0.00 3.93 Average: 19.04 9.93 9.11 1172.13 4033.39 00:15:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:16:01 173556 1708000 90.78 2620 1141844 1112564 37.97 429168 1118844 116 00:17:01 181360 1700196 90.36 2620 1141876 1066744 36.41 424692 1116744 20 00:18:01 180088 1701468 90.43 2620 1141884 1066660 36.40 426324 1116528 12 00:19:01 176404 1705152 90.62 2620 1141884 1066952 36.41 430336 1115920 16 00:20:01 178192 1703364 90.53 2620 1141892 1066724 36.41 429004 1115924 12 00:21:01 173404 1708152 90.78 2620 1141896 1066796 36.41 435244 1114720 8 00:22:01 172392 1709164 90.84 2620 1141904 1067044 36.42 435864 1114688 28 00:23:02 173332 1708224 90.79 2620 1141912 1066852 36.41 432744 1116836 16 00:24:01 173580 1707976 90.77 2620 1141916 1066852 36.41 432748 1116836 20 00:25:01 173644 1707912 90.77 2620 1141924 1066852 36.41 430712 1118884 12 Average: 175595 1705961 90.67 2620 1141893 1071404 36.57 430684 1116592 26 00:15:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 00:16:01 eth0 445.29 263.20 1036.91 92.30 0.00 0.00 0.00 00:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:16:01 docker0 1.93 1.68 0.32 3.23 0.00 0.00 0.00 00:17:01 eth0 3.13 1.65 2.88 0.11 0.00 0.00 0.00 00:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:18:01 eth0 1.05 0.08 0.09 0.01 0.00 0.00 0.00 00:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:19:01 eth0 2.00 1.15 0.92 0.58 0.00 0.00 0.00 00:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:20:01 eth0 0.12 0.10 0.01 0.04 0.00 0.00 0.00 00:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:21:01 eth0 1.45 0.22 0.25 0.07 0.00 0.00 0.00 00:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:22:01 eth0 1.02 0.60 0.54 0.40 0.00 0.00 0.00 00:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:23:02 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 00:23:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:23:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:24:01 eth0 0.07 0.05 0.00 0.00 0.00 0.00 0.00 00:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:25:01 eth0 0.05 0.08 0.00 0.01 0.00 0.00 0.00 00:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 00:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 45.52 26.78 104.38 9.37 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 0.17 0.03 0.32 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) 06/11/20 _x86_64_ (4 CPU) 00:14:46 LINUX RESTART 00:15:01 CPU %user %nice %system %iowait %steal %idle 00:16:01 all 17.66 0.00 9.10 5.73 0.82 66.69 00:16:01 0 17.26 0.00 9.06 8.33 0.88 64.47 00:16:01 1 17.71 0.00 9.81 5.36 0.83 66.29 00:16:01 2 17.91 0.00 8.91 4.69 0.80 67.68 00:16:01 3 17.77 0.00 8.59 4.49 0.77 68.38 00:17:01 all 0.17 0.00 0.04 0.00 0.03 99.76 00:17:01 0 0.07 0.00 0.05 0.00 0.00 99.88 00:17:01 1 0.12 0.00 0.03 0.00 0.03 99.82 00:17:01 2 0.43 0.00 0.03 0.00 0.05 99.48 00:17:01 3 0.08 0.00 0.08 0.00 0.03 99.80 00:18:01 all 0.14 0.00 0.03 0.00 0.00 99.83 00:18:01 0 0.00 0.00 0.02 0.00 0.00 99.98 00:18:01 1 0.43 0.00 0.02 0.00 0.00 99.55 00:18:01 2 0.03 0.00 0.02 0.00 0.00 99.95 00:18:01 3 0.05 0.00 0.03 0.00 0.02 99.90 00:19:01 all 0.15 0.00 0.03 0.00 0.01 99.80 00:19:01 0 0.02 0.00 0.03 0.00 0.00 99.95 00:19:01 1 0.55 0.00 0.03 0.00 0.02 99.40 00:19:01 2 0.03 0.00 0.03 0.00 0.00 99.93 00:19:01 3 0.03 0.00 0.03 0.00 0.02 99.92 00:20:01 all 0.15 0.00 0.02 0.00 0.01 99.81 00:20:01 0 0.03 0.00 0.02 0.00 0.00 99.95 00:20:01 1 0.50 0.00 0.02 0.00 0.02 99.47 00:20:01 2 0.05 0.00 0.02 0.00 0.03 99.90 00:20:01 3 0.03 0.00 0.03 0.00 0.00 99.93 00:21:01 all 0.15 0.00 0.02 0.00 0.01 99.82 00:21:01 0 0.02 0.00 0.02 0.00 0.02 99.95 00:21:01 1 0.48 0.00 0.02 0.00 0.00 99.50 00:21:01 2 0.02 0.00 0.02 0.00 0.02 99.95 00:21:01 3 0.05 0.00 0.05 0.00 0.02 99.88 00:22:01 all 0.15 0.00 0.04 0.00 0.00 99.80 00:22:01 0 0.03 0.00 0.03 0.00 0.00 99.93 00:22:01 1 0.48 0.00 0.02 0.00 0.00 99.50 00:22:01 2 0.05 0.00 0.05 0.00 0.00 99.90 00:22:01 3 0.08 0.00 0.07 0.00 0.02 99.83 00:23:02 all 0.14 0.00 0.03 0.00 0.01 99.82 00:23:02 0 0.02 0.00 0.07 0.00 0.02 99.90 00:23:02 1 0.48 0.00 0.02 0.00 0.02 99.48 00:23:02 2 0.02 0.00 0.03 0.00 0.00 99.95 00:23:02 3 0.00 0.00 0.02 0.00 0.00 99.98 00:24:01 all 0.15 0.00 0.03 0.00 0.00 99.82 00:24:01 0 0.03 0.00 0.05 0.00 0.02 99.90 00:24:01 1 0.36 0.00 0.03 0.00 0.02 99.59 00:24:01 2 0.19 0.00 0.02 0.00 0.00 99.80 00:24:01 3 0.03 0.00 0.02 0.00 0.00 99.95 00:25:01 all 0.15 0.00 0.02 0.00 0.02 99.82 00:25:01 0 0.02 0.00 0.02 0.00 0.05 99.92 00:25:01 1 0.02 0.00 0.02 0.00 0.00 99.97 00:25:01 2 0.52 0.00 0.03 0.00 0.00 99.45 00:25:01 3 0.02 0.00 0.02 0.00 0.02 99.95 Average: all 1.87 0.00 0.92 0.56 0.09 96.55 Average: 0 1.72 0.00 0.92 0.82 0.10 96.43 Average: 1 2.09 0.00 0.99 0.53 0.09 96.30 Average: 2 1.90 0.00 0.90 0.46 0.09 96.64 Average: 3 1.78 0.00 0.88 0.44 0.09 96.82