---> uname -a: Linux 580704d7643a 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 630 122 0 1084 1100 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) 06/17/20 _x86_64_ (4 CPU) 18:43:32 LINUX RESTART 18:44:02 tps rtps wtps bread/s bwrtn/s 18:45:01 86.40 35.91 50.49 7400.27 5037.80 18:46:01 2.60 0.00 2.60 0.00 96.90 18:47:01 0.47 0.00 0.47 0.00 7.69 18:48:01 0.23 0.00 0.23 0.00 3.48 18:49:02 0.27 0.00 0.27 0.00 3.19 18:50:01 0.39 0.00 0.39 0.00 6.38 18:51:01 0.38 0.02 0.37 0.13 5.71 18:52:01 0.38 0.00 0.38 0.00 5.26 18:53:01 3.75 3.45 0.30 347.98 4.93 Average: 10.42 4.33 6.10 850.81 567.66 18:44:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 18:45:01 176720 1704836 90.61 2620 1151300 1134848 38.73 410088 1134236 116 18:46:01 186464 1695092 90.09 2620 1151240 1068516 36.47 404804 1130792 16 18:47:01 183872 1697684 90.23 2620 1151248 1068820 36.48 408240 1130576 8 18:48:01 183356 1698200 90.26 2620 1151248 1068808 36.48 409892 1129948 8 18:49:02 184124 1697432 90.21 2620 1151312 1068680 36.47 411808 1126908 32 18:50:01 181544 1700012 90.35 2620 1151260 1068676 36.47 413992 1126892 8 18:51:01 180348 1701208 90.41 2620 1151268 1068580 36.47 428696 1113448 16 18:52:01 180656 1700900 90.40 2620 1151276 1068580 36.47 428596 1113448 8 18:53:01 168116 1713440 91.07 2620 1161584 1071808 36.58 430588 1123616 8 Average: 180578 1700978 90.40 2620 1152415 1076368 36.73 416300 1125540 24 18:44:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 18:45:01 eth0 243.71 177.54 1040.30 84.65 0.00 0.00 0.00 18:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:45:01 docker0 2.01 1.83 0.36 3.62 0.00 0.00 0.00 18:46:01 eth0 0.75 0.08 0.06 0.05 0.00 0.00 0.00 18:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:47:01 eth0 1.73 1.38 3.02 0.15 0.00 0.00 0.00 18:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:48:01 eth0 0.88 0.42 0.31 0.30 0.00 0.00 0.00 18:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:49:02 eth0 0.10 0.10 0.01 0.04 0.00 0.00 0.00 18:49:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:49:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:50:01 eth0 0.30 0.22 0.14 0.07 0.00 0.00 0.00 18:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:51:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 18:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:52:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 18:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:53:01 eth0 0.73 0.62 1.06 0.24 0.00 0.00 0.00 18:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 27.26 19.81 114.66 9.38 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.22 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) 06/17/20 _x86_64_ (4 CPU) 18:43:32 LINUX RESTART 18:44:02 CPU %user %nice %system %iowait %steal %idle 18:45:01 all 14.46 0.00 4.83 3.04 7.45 70.21 18:45:01 0 13.79 0.00 5.63 3.14 8.11 69.33 18:45:01 1 16.71 0.00 4.79 1.72 7.18 69.60 18:45:01 2 16.15 0.00 4.09 2.68 7.13 69.95 18:45:01 3 11.18 0.00 4.84 4.61 7.40 71.97 18:46:01 all 0.15 0.00 0.05 0.00 0.12 99.69 18:46:01 0 0.05 0.00 0.03 0.00 0.05 99.87 18:46:01 1 0.27 0.00 0.02 0.00 0.07 99.65 18:46:01 2 0.05 0.00 0.05 0.00 0.10 99.80 18:46:01 3 0.22 0.00 0.08 0.00 0.25 99.45 18:47:01 all 0.12 0.00 0.05 0.00 0.53 99.31 18:47:01 0 0.05 0.00 0.03 0.00 0.60 99.32 18:47:01 1 0.07 0.00 0.07 0.00 0.68 99.19 18:47:01 2 0.05 0.00 0.05 0.00 0.43 99.47 18:47:01 3 0.32 0.00 0.05 0.00 0.40 99.24 18:48:01 all 0.12 0.00 0.03 0.00 0.42 99.43 18:48:01 0 0.02 0.00 0.05 0.00 0.27 99.67 18:48:01 1 0.03 0.00 0.02 0.00 0.18 99.77 18:48:01 2 0.05 0.00 0.02 0.00 0.40 99.53 18:48:01 3 0.35 0.00 0.03 0.00 0.88 98.74 18:49:02 all 0.12 0.00 0.05 0.00 0.22 99.60 18:49:02 0 0.03 0.00 0.07 0.00 0.13 99.77 18:49:02 1 0.03 0.00 0.05 0.00 0.23 99.68 18:49:02 2 0.07 0.00 0.05 0.00 0.23 99.65 18:49:02 3 0.37 0.00 0.03 0.00 0.28 99.32 18:50:01 all 0.07 0.00 0.04 0.00 0.52 99.37 18:50:01 0 0.02 0.00 0.05 0.00 0.17 99.76 18:50:01 1 0.03 0.00 0.03 0.00 0.92 99.01 18:50:01 2 0.00 0.00 0.03 0.00 0.39 99.58 18:50:01 3 0.22 0.00 0.03 0.00 0.61 99.14 18:51:01 all 0.09 0.00 0.05 0.00 0.37 99.50 18:51:01 0 0.00 0.00 0.10 0.00 0.22 99.68 18:51:01 1 0.03 0.00 0.02 0.00 0.42 99.53 18:51:01 2 0.08 0.00 0.05 0.00 0.53 99.34 18:51:01 3 0.23 0.00 0.02 0.00 0.32 99.43 18:52:01 all 0.12 0.00 0.02 0.00 0.12 99.73 18:52:01 0 0.02 0.00 0.02 0.00 0.03 99.93 18:52:01 1 0.08 0.00 0.05 0.00 0.20 99.67 18:52:01 2 0.03 0.00 0.03 0.00 0.13 99.80 18:52:01 3 0.38 0.00 0.02 0.00 0.12 99.48 18:53:01 all 0.17 0.00 0.05 0.03 0.12 99.62 18:53:01 0 0.02 0.00 0.03 0.03 0.00 99.92 18:53:01 1 0.07 0.00 0.05 0.05 0.10 99.73 18:53:01 2 0.22 0.00 0.10 0.07 0.27 99.35 18:53:01 3 0.40 0.00 0.02 0.00 0.10 99.48 Average: all 1.66 0.00 0.56 0.33 1.07 96.39 Average: 0 1.49 0.00 0.64 0.34 1.02 96.51 Average: 1 1.87 0.00 0.55 0.19 1.09 96.30 Average: 2 1.80 0.00 0.48 0.30 1.04 96.38 Average: 3 1.48 0.00 0.55 0.49 1.12 96.36