---> uname -a: Linux e9e11c702bfb 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% /w/workspace/gexfoundry_device-mqtt-go_PR-150 /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 ---> free -m: total used free shared buff/cache available Mem: 1837 662 115 0 1059 1070 Swap: 1023 0 1023 ---> 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) 06/06/20 _x86_64_ (4 CPU) 14:33:45 LINUX RESTART 14:34:02 tps rtps wtps bread/s bwrtn/s 14:35:01 191.03 100.59 90.44 11839.84 40900.08 14:36:01 1.55 0.00 1.55 0.00 31.05 14:37:01 0.32 0.00 0.32 0.00 4.23 14:38:01 0.27 0.00 0.27 0.00 3.35 14:39:01 0.22 0.00 0.22 0.00 2.56 14:40:01 0.37 0.00 0.37 0.00 5.48 14:41:01 0.25 0.02 0.23 0.13 3.01 14:42:01 0.20 0.00 0.20 0.00 2.07 14:43:01 0.32 0.00 0.32 0.00 3.65 14:44:01 0.28 0.00 0.28 0.00 2.91 Average: 19.20 9.92 9.29 1166.85 4036.63 14:34:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 14:35:01 164152 1717404 91.28 2620 1136840 1139748 38.90 413524 1143836 116 14:36:01 171824 1709732 90.87 2620 1136844 1090704 37.22 410720 1140344 20 14:37:01 171500 1710056 90.89 2620 1136852 1079652 36.85 411988 1139760 8 14:38:01 170556 1711000 90.94 2620 1136852 1079808 36.85 412964 1139760 8 14:39:01 169460 1712096 90.99 2620 1136860 1079772 36.85 414960 1139252 16 14:40:01 169624 1711932 90.98 2620 1136864 1079736 36.85 422340 1131752 16 14:41:01 170156 1711400 90.96 2620 1136872 1079652 36.85 421692 1131752 8 14:42:01 169868 1711688 90.97 2620 1136880 1079716 36.85 412296 1141296 8 14:43:01 169440 1712116 90.99 2620 1136884 1079716 36.85 412428 1141296 8 14:44:01 169364 1712192 91.00 2620 1136948 1079716 36.85 409964 1143640 12 Average: 169594 1711962 90.99 2620 1136870 1086822 37.09 414288 1139269 22 14:34:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 14:35:01 eth0 456.45 268.30 1055.06 95.31 0.00 0.00 0.00 14:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:35:01 docker0 1.81 1.73 0.31 3.28 0.00 0.00 0.00 14:36:01 eth0 0.90 0.52 0.73 0.04 0.00 0.00 0.00 14:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:36:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:37:01 eth0 0.85 0.10 0.07 0.01 0.00 0.00 0.00 14:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:38:01 eth0 0.90 0.50 0.32 0.21 0.00 0.00 0.00 14:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:39:01 eth0 0.50 0.32 0.27 0.20 0.00 0.00 0.00 14:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:40:01 eth0 0.35 0.27 0.17 0.08 0.00 0.00 0.00 14:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:41:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 14:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:42:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 14:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:43:01 eth0 0.05 0.07 0.00 0.01 0.00 0.00 0.00 14:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:44:01 eth0 0.05 0.05 0.00 0.00 0.00 0.00 0.00 14:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 45.36 26.64 104.14 9.45 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 0.17 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) 06/06/20 _x86_64_ (4 CPU) 14:33:45 LINUX RESTART 14:34:02 CPU %user %nice %system %iowait %steal %idle 14:35:01 all 15.18 0.00 8.80 11.01 0.04 64.97 14:35:01 0 14.71 0.00 9.17 9.39 0.03 66.70 14:35:01 1 15.64 0.00 9.22 8.96 0.03 66.15 14:35:01 2 15.67 0.00 8.48 18.12 0.05 57.68 14:35:01 3 14.68 0.00 8.31 7.57 0.03 69.40 14:36:01 all 0.27 0.00 0.04 0.00 0.00 99.69 14:36:01 0 0.03 0.00 0.03 0.00 0.00 99.93 14:36:01 1 0.45 0.00 0.03 0.00 0.00 99.52 14:36:01 2 0.08 0.00 0.05 0.00 0.00 99.87 14:36:01 3 0.53 0.00 0.03 0.00 0.02 99.42 14:37:01 all 0.15 0.00 0.02 0.00 0.00 99.82 14:37:01 0 0.03 0.00 0.03 0.00 0.00 99.93 14:37:01 1 0.02 0.00 0.03 0.00 0.02 99.93 14:37:01 2 0.03 0.00 0.02 0.00 0.00 99.95 14:37:01 3 0.52 0.00 0.05 0.00 0.00 99.43 14:38:01 all 0.14 0.00 0.03 0.00 0.00 99.83 14:38:01 0 0.02 0.00 0.00 0.00 0.00 99.98 14:38:01 1 0.03 0.00 0.05 0.00 0.00 99.92 14:38:01 2 0.03 0.00 0.00 0.00 0.00 99.97 14:38:01 3 0.48 0.00 0.03 0.00 0.00 99.48 14:39:01 all 0.05 0.00 0.03 0.00 0.00 99.92 14:39:01 0 0.02 0.00 0.02 0.00 0.00 99.97 14:39:01 1 0.07 0.00 0.05 0.00 0.00 99.88 14:39:01 2 0.07 0.00 0.02 0.00 0.00 99.92 14:39:01 3 0.05 0.00 0.05 0.00 0.00 99.90 14:40:01 all 0.04 0.00 0.06 0.00 0.00 99.90 14:40:01 0 0.03 0.00 0.03 0.00 0.00 99.93 14:40:01 1 0.02 0.00 0.05 0.00 0.00 99.93 14:40:01 2 0.02 0.00 0.03 0.00 0.00 99.95 14:40:01 3 0.08 0.00 0.15 0.00 0.00 99.77 14:41:01 all 0.15 0.00 0.02 0.00 0.00 99.82 14:41:01 0 0.02 0.00 0.02 0.00 0.02 99.95 14:41:01 1 0.05 0.00 0.03 0.00 0.00 99.92 14:41:01 2 0.05 0.00 0.00 0.00 0.00 99.95 14:41:01 3 0.50 0.00 0.02 0.00 0.00 99.48 14:42:01 all 0.14 0.00 0.02 0.00 0.00 99.83 14:42:01 0 0.02 0.00 0.03 0.00 0.00 99.95 14:42:01 1 0.03 0.00 0.05 0.00 0.00 99.92 14:42:01 2 0.02 0.00 0.02 0.00 0.00 99.97 14:42:01 3 0.50 0.00 0.00 0.00 0.00 99.50 14:43:01 all 0.14 0.00 0.02 0.00 0.00 99.83 14:43:01 0 0.00 0.00 0.02 0.00 0.00 99.98 14:43:01 1 0.02 0.00 0.03 0.00 0.00 99.95 14:43:01 2 0.03 0.00 0.02 0.00 0.00 99.95 14:43:01 3 0.53 0.00 0.02 0.00 0.00 99.45 14:44:01 all 0.15 0.00 0.02 0.00 0.00 99.83 14:44:01 0 0.03 0.00 0.02 0.00 0.00 99.95 14:44:01 1 0.03 0.00 0.05 0.00 0.00 99.92 14:44:01 2 0.03 0.00 0.00 0.00 0.00 99.97 14:44:01 3 0.50 0.00 0.03 0.00 0.00 99.47 Average: all 1.61 0.00 0.89 1.08 0.01 96.43 Average: 0 1.46 0.00 0.92 0.92 0.01 96.70 Average: 1 1.60 0.00 0.94 0.88 0.01 96.58 Average: 2 1.57 0.00 0.84 1.77 0.01 95.81 Average: 3 1.80 0.00 0.85 0.74 0.01 96.61