---> uname -a: Linux bc3ac4d4c906 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: 2933.442 BogoMIPS: 5866.88 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 8.5G 41.5G 17% / 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 8.5G 41.5G 17% /etc/resolv.conf /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hostname /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hosts /dev/vda1 50.0G 8.5G 41.5G 17% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/gexfoundry_device-snmp-go_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/gexfoundry_device-snmp-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 746 112 0 978 1023 Swap: 1023 3 1020 ---> 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 24: eth0@if25: 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) 08/28/20 _x86_64_ (4 CPU) 11:15:05 LINUX RESTART 11:16:01 tps rtps wtps bread/s bwrtn/s 11:17:01 26.02 10.34 15.68 4394.92 2366.85 11:18:01 0.70 0.02 0.68 0.53 15.45 11:19:01 0.22 0.00 0.22 0.00 2.20 11:20:01 0.33 0.00 0.33 0.00 4.10 11:21:01 131.40 71.35 60.06 2388.28 25192.64 11:22:01 204.39 94.74 109.65 5090.50 27473.02 11:23:02 251.97 112.81 139.16 8596.24 32500.22 Average: 88.20 41.48 46.72 2924.90 12556.22 11:16:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:17:01 168300 1713256 91.06 2620 1149588 1121564 38.28 415440 1137448 16 11:18:01 169508 1712048 90.99 2620 1149592 1120192 38.23 416308 1135736 16 11:19:01 167212 1714344 91.11 2620 1149600 1115028 38.05 418964 1135364 20 11:20:01 167816 1713740 91.08 2620 1149600 1100648 37.56 422328 1131944 8 11:21:01 154468 1727088 91.79 2620 1083968 1307260 44.61 441988 1087152 34024 11:22:01 76128 1805428 95.95 2596 1050716 1530864 52.25 658520 889480 60604 11:23:02 154032 1727524 91.81 1492 999992 1221724 41.70 606424 821784 72 Average: 151066 1730490 91.97 2455 1104722 1216754 41.53 482853 1048415 13537 11:16:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 11:17:01 eth0 47.77 35.35 340.32 26.44 0.00 0.00 0.00 11:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:17:01 docker0 1.15 1.05 0.20 1.65 0.00 0.00 0.00 11:18:01 eth0 2.16 0.42 0.43 0.24 0.00 0.00 0.00 11:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:19:01 eth0 1.93 0.78 0.86 0.58 0.00 0.00 0.00 11:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:20:01 eth0 1.87 0.33 0.40 0.20 0.00 0.00 0.00 11:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:21:01 eth0 130.45 86.38 3761.67 9.98 0.00 0.00 0.00 11:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:22:01 eth0 220.37 175.78 3422.78 93.35 0.00 0.00 0.00 11:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:22:01 docker0 22.84 20.81 2.62 51.41 0.00 0.00 0.00 11:23:02 veth7ef6487 0.00 0.05 0.00 0.00 0.00 0.00 0.00 11:23:02 eth0 953.57 663.07 10883.87 277.89 0.00 0.00 0.00 11:23:02 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 11:23:02 docker0 58.79 63.50 4.91 252.97 0.00 0.00 0.00 Average: veth7ef6487 0.00 0.01 0.00 0.00 0.00 0.00 0.00 Average: eth0 136.47 94.90 1557.65 39.77 0.00 0.00 0.00 Average: lo 0.02 0.02 0.00 0.00 0.00 0.00 0.00 Average: docker0 8.41 9.09 0.70 36.20 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) 08/28/20 _x86_64_ (4 CPU) 11:15:05 LINUX RESTART 11:16:01 CPU %user %nice %system %iowait %steal %idle 11:17:01 all 2.07 0.00 1.50 0.43 0.01 95.99 11:17:01 0 2.37 0.00 1.65 0.17 0.00 95.80 11:17:01 1 1.80 0.00 1.53 0.07 0.00 96.60 11:17:01 2 2.06 0.00 1.75 0.37 0.00 95.82 11:17:01 3 2.07 0.00 1.07 1.09 0.03 95.73 11:18:01 all 0.15 0.00 0.03 0.00 0.00 99.81 11:18:01 0 0.38 0.00 0.03 0.00 0.00 99.58 11:18:01 1 0.05 0.00 0.03 0.00 0.02 99.90 11:18:01 2 0.15 0.00 0.02 0.00 0.00 99.83 11:18:01 3 0.02 0.00 0.02 0.00 0.00 99.97 11:19:01 all 0.20 0.00 0.03 0.00 0.00 99.77 11:19:01 0 0.12 0.00 0.02 0.00 0.00 99.87 11:19:01 1 0.05 0.00 0.07 0.00 0.00 99.88 11:19:01 2 0.55 0.00 0.03 0.00 0.00 99.42 11:19:01 3 0.07 0.00 0.03 0.00 0.00 99.90 11:20:01 all 0.15 0.00 0.03 0.00 0.00 99.83 11:20:01 0 0.03 0.00 0.02 0.00 0.00 99.95 11:20:01 1 0.03 0.00 0.02 0.00 0.00 99.95 11:20:01 2 0.48 0.00 0.05 0.00 0.00 99.47 11:20:01 3 0.03 0.00 0.05 0.00 0.00 99.92 11:21:01 all 5.09 0.00 3.35 0.99 0.01 90.55 11:21:01 0 4.69 0.00 3.49 0.89 0.02 90.92 11:21:01 1 5.11 0.00 3.07 0.42 0.00 91.40 11:21:01 2 5.23 0.00 3.58 0.13 0.02 91.04 11:21:01 3 5.35 0.00 3.27 2.53 0.02 88.83 11:22:01 all 9.95 0.00 7.05 1.96 0.03 81.01 11:22:01 0 9.93 0.00 8.00 1.74 0.03 80.29 11:22:01 1 9.06 0.00 6.38 2.70 0.03 81.84 11:22:01 2 10.19 0.00 6.52 1.68 0.03 81.59 11:22:01 3 10.60 0.00 7.33 1.73 0.02 80.32 11:23:02 all 10.12 0.00 7.13 4.03 0.03 78.70 11:23:02 0 8.31 0.00 7.89 3.11 0.03 80.66 11:23:02 1 9.74 0.00 6.67 5.15 0.02 78.43 11:23:02 2 13.14 0.00 7.68 6.18 0.03 72.97 11:23:02 3 9.28 0.00 6.26 1.65 0.02 82.79 Average: all 3.95 0.00 2.72 1.05 0.01 92.27 Average: 0 3.68 0.00 3.00 0.84 0.01 92.46 Average: 1 3.68 0.00 2.53 1.19 0.01 92.59 Average: 2 4.53 0.00 2.79 1.19 0.01 91.48 Average: 3 3.90 0.00 2.57 1.00 0.01 92.53