---> uname -a: Linux cae2117a2032 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-151@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-151 ---> free -m: total used free shared buff/cache available Mem: 1837 664 117 0 1055 1066 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) 06/10/20 _x86_64_ (4 CPU) 09:22:48 LINUX RESTART 09:24:02 tps rtps wtps bread/s bwrtn/s 09:25:01 5.40 0.58 4.82 9.07 144.32 09:26:01 0.33 0.00 0.33 0.00 5.25 09:27:01 0.25 0.00 0.25 0.00 3.11 09:28:01 0.20 0.00 0.20 0.00 1.75 Average: 1.53 0.14 1.39 2.24 38.18 09:24:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:25:01 177592 1703964 90.56 2620 1119176 1097784 37.47 427764 1117208 20 09:26:01 179360 1702196 90.47 2620 1119180 1065056 36.35 429376 1115084 16 09:27:01 178924 1702632 90.49 2620 1119188 1065056 36.35 429288 1115084 8 09:28:01 178288 1703268 90.52 2620 1119188 1064876 36.34 430648 1114484 16 Average: 178541 1703015 90.51 2620 1119183 1073193 36.63 429269 1115465 15 09:24:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 09:25:01 eth0 6.84 4.32 5.67 5.13 0.00 0.00 0.00 09:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:25:01 docker0 0.00 0.02 0.00 0.00 0.00 0.00 0.00 09:26:01 eth0 2.10 0.97 3.08 0.21 0.00 0.00 0.00 09:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:27:01 eth0 0.70 0.38 0.29 0.24 0.00 0.00 0.00 09:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:28:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 09:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.42 1.43 2.25 1.38 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 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) 09:22:48 LINUX RESTART 09:24:02 CPU %user %nice %system %iowait %steal %idle 09:25:01 all 0.48 0.00 0.11 0.02 0.02 99.37 09:25:01 0 0.44 0.00 0.12 0.03 0.02 99.39 09:25:01 1 0.24 0.00 0.08 0.02 0.03 99.63 09:25:01 2 0.53 0.00 0.08 0.00 0.03 99.36 09:25:01 3 0.73 0.00 0.10 0.05 0.03 99.09 09:26:01 all 0.17 0.00 0.03 0.00 0.02 99.78 09:26:01 0 0.05 0.00 0.03 0.00 0.00 99.92 09:26:01 1 0.03 0.00 0.02 0.00 0.02 99.93 09:26:01 2 0.07 0.00 0.03 0.00 0.03 99.87 09:26:01 3 0.52 0.00 0.03 0.00 0.02 99.43 09:27:01 all 0.15 0.00 0.02 0.00 0.01 99.82 09:27:01 0 0.03 0.00 0.02 0.00 0.00 99.95 09:27:01 1 0.05 0.00 0.03 0.00 0.00 99.92 09:27:01 2 0.03 0.00 0.03 0.00 0.00 99.93 09:27:01 3 0.48 0.00 0.02 0.00 0.02 99.48 09:28:01 all 0.14 0.00 0.02 0.00 0.00 99.83 09:28:01 0 0.02 0.00 0.02 0.00 0.00 99.97 09:28:01 1 0.13 0.00 0.05 0.00 0.00 99.82 09:28:01 2 0.30 0.00 0.02 0.00 0.02 99.67 09:28:01 3 0.12 0.00 0.02 0.00 0.00 99.87 Average: all 0.23 0.00 0.05 0.01 0.01 99.70 Average: 0 0.13 0.00 0.05 0.01 0.00 99.81 Average: 1 0.11 0.00 0.05 0.00 0.01 99.82 Average: 2 0.23 0.00 0.04 0.00 0.02 99.71 Average: 3 0.46 0.00 0.04 0.01 0.02 99.47