---> uname -a: Linux e0e7038c3bfa 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/gexfoundry_device-mqtt-go_PR-153 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-153@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 637 108 0 1091 1094 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) 06/18/20 _x86_64_ (4 CPU) 05:23:53 LINUX RESTART 05:25:01 tps rtps wtps bread/s bwrtn/s 05:26:01 5.22 0.10 5.12 4.52 134.56 05:27:01 0.27 0.00 0.27 0.00 3.65 05:28:01 0.32 0.00 0.32 0.00 3.93 05:29:01 0.25 0.00 0.25 0.00 2.56 05:30:01 0.27 0.00 0.27 0.00 3.23 05:31:01 0.35 0.02 0.33 0.13 3.53 05:32:02 0.25 0.00 0.25 0.00 2.46 05:33:01 0.29 0.00 0.29 0.00 3.30 05:34:01 0.23 0.00 0.23 0.00 2.71 05:35:01 0.23 0.00 0.23 0.00 2.08 05:36:01 22.92 22.56 0.37 2052.14 5.21 Average: 2.79 2.06 0.72 187.26 15.23 05:25:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:26:01 169388 1712168 91.00 2620 1171208 1151804 39.31 414232 1136432 12 05:27:01 180668 1700888 90.40 2620 1171212 1054512 35.99 407008 1134200 12 05:28:01 180004 1701552 90.43 2620 1171220 1054768 36.00 408096 1134200 8 05:29:01 179804 1701752 90.44 2620 1171220 1054576 35.99 409996 1132608 8 05:30:01 175892 1705664 90.65 2620 1171228 1054768 36.00 413892 1132612 8 05:31:01 175760 1705796 90.66 2620 1171236 1054576 35.99 443988 1102928 8 05:32:02 175672 1705884 90.66 2620 1171240 1054576 35.99 438888 1107908 8 05:33:01 175820 1705736 90.66 2620 1171248 1054576 35.99 439024 1107904 8 05:34:01 175564 1705992 90.67 2620 1171252 1054576 35.99 439012 1107904 8 05:35:01 175088 1706468 90.69 2620 1171260 1054636 35.99 432400 1114752 8 05:36:01 91952 1789604 95.11 2620 1232848 1082028 36.93 447340 1175764 104 Average: 168692 1712864 91.03 2620 1176834 1065945 36.38 426716 1126110 17 05:25:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 05:26:01 eth0 14.80 12.48 19.35 15.57 0.00 0.00 0.00 05:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:26:01 docker0 1.95 1.58 0.35 3.62 0.00 0.00 0.00 05:27:01 eth0 0.62 0.08 0.06 0.01 0.00 0.00 0.00 05:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:28:01 eth0 0.42 0.42 0.26 0.21 0.00 0.00 0.00 05:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:29:01 eth0 0.67 0.08 0.06 0.01 0.00 0.00 0.00 05:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:30:01 eth0 0.72 0.45 0.41 0.27 0.00 0.00 0.00 05:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:31:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 05:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:31:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:32:02 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 05:32:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:32:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:33:01 eth0 0.02 0.02 0.00 0.00 0.00 0.00 0.00 05:33:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:33:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:34:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 05:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:34:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:35:01 eth0 0.28 0.20 0.14 0.07 0.00 0.00 0.00 05:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:35:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:36:01 eth0 8.77 5.51 9.01 3.25 0.00 0.00 0.00 05:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:36:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.42 1.77 2.67 1.77 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.18 0.14 0.03 0.33 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) 06/18/20 _x86_64_ (4 CPU) 05:23:53 LINUX RESTART 05:25:01 CPU %user %nice %system %iowait %steal %idle 05:26:01 all 0.85 0.00 0.56 0.02 2.00 96.57 05:26:01 0 0.50 0.00 0.45 0.00 2.07 96.99 05:26:01 1 0.98 0.00 0.66 0.00 1.88 96.48 05:26:01 2 1.11 0.00 0.50 0.05 2.04 96.31 05:26:01 3 0.85 0.00 0.58 0.02 2.00 96.55 05:27:01 all 0.08 0.00 0.09 0.00 0.54 99.30 05:27:01 0 0.03 0.00 0.07 0.00 0.20 99.70 05:27:01 1 0.20 0.00 0.10 0.00 0.53 99.17 05:27:01 2 0.07 0.00 0.13 0.00 1.07 98.73 05:27:01 3 0.02 0.00 0.07 0.00 0.35 99.57 05:28:01 all 0.12 0.00 0.03 0.00 0.16 99.68 05:28:01 0 0.03 0.00 0.02 0.02 0.05 99.88 05:28:01 1 0.33 0.00 0.05 0.00 0.13 99.48 05:28:01 2 0.10 0.00 0.03 0.00 0.43 99.43 05:28:01 3 0.03 0.00 0.03 0.00 0.02 99.92 05:29:01 all 0.11 0.00 0.04 0.00 0.23 99.62 05:29:01 0 0.02 0.00 0.02 0.00 0.17 99.80 05:29:01 1 0.35 0.00 0.02 0.00 0.23 99.40 05:29:01 2 0.05 0.00 0.05 0.00 0.45 99.45 05:29:01 3 0.02 0.00 0.03 0.00 0.08 99.87 05:30:01 all 0.08 0.00 0.05 0.00 0.36 99.51 05:30:01 0 0.02 0.00 0.08 0.00 0.18 99.72 05:30:01 1 0.23 0.00 0.03 0.00 0.32 99.42 05:30:01 2 0.05 0.00 0.05 0.00 0.84 99.06 05:30:01 3 0.03 0.00 0.02 0.00 0.12 99.83 05:31:01 all 0.07 0.00 0.07 0.00 0.56 99.29 05:31:01 0 0.00 0.00 0.18 0.00 0.13 99.68 05:31:01 1 0.22 0.00 0.03 0.00 0.56 99.19 05:31:01 2 0.08 0.00 0.05 0.00 1.32 98.55 05:31:01 3 0.00 0.00 0.02 0.00 0.22 99.77 05:32:02 all 0.10 0.00 0.03 0.00 0.15 99.71 05:32:02 0 0.02 0.00 0.02 0.00 0.03 99.93 05:32:02 1 0.30 0.00 0.05 0.00 0.08 99.57 05:32:02 2 0.03 0.00 0.03 0.00 0.37 99.57 05:32:02 3 0.05 0.00 0.05 0.00 0.13 99.77 05:33:01 all 0.04 0.00 0.04 0.00 0.03 99.89 05:33:01 0 0.02 0.00 0.02 0.00 0.03 99.93 05:33:01 1 0.10 0.00 0.07 0.00 0.02 99.81 05:33:01 2 0.02 0.00 0.02 0.00 0.03 99.93 05:33:01 3 0.03 0.00 0.07 0.00 0.03 99.86 05:34:01 all 0.11 0.00 0.02 0.00 0.11 99.76 05:34:01 0 0.02 0.00 0.02 0.00 0.12 99.85 05:34:01 1 0.33 0.00 0.03 0.00 0.17 99.47 05:34:01 2 0.05 0.00 0.02 0.00 0.07 99.87 05:34:01 3 0.05 0.00 0.02 0.00 0.07 99.87 05:35:01 all 0.14 0.00 0.02 0.00 0.14 99.70 05:35:01 0 0.03 0.00 0.02 0.00 0.15 99.80 05:35:01 1 0.48 0.00 0.03 0.00 0.30 99.19 05:35:01 2 0.02 0.00 0.03 0.00 0.10 99.85 05:35:01 3 0.02 0.00 0.03 0.00 0.05 99.90 05:36:01 all 0.53 0.00 0.35 0.50 0.60 98.03 05:36:01 0 0.55 0.00 0.38 0.10 0.43 98.53 05:36:01 1 0.57 0.00 0.35 0.32 0.57 98.20 05:36:01 2 0.68 0.00 0.37 0.35 0.92 97.69 05:36:01 3 0.32 0.00 0.32 1.23 0.47 97.67 Average: all 0.20 0.00 0.12 0.05 0.45 99.18 Average: 0 0.11 0.00 0.12 0.01 0.33 99.44 Average: 1 0.37 0.00 0.13 0.03 0.44 99.03 Average: 2 0.21 0.00 0.12 0.04 0.70 98.94 Average: 3 0.13 0.00 0.11 0.11 0.32 99.32