---> uname -a: Linux c43aaecd008c 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: 2933.396 BogoMIPS: 5866.79 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 42.7G 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 42.7G 14% /etc/resolv.conf /dev/vda1 50.0G 7.2G 42.7G 14% /etc/hostname /dev/vda1 50.0G 7.2G 42.7G 14% /etc/hosts /dev/vda1 50.0G 7.2G 42.7G 14% /var/log/sa /dev/vda1 50.0G 7.2G 42.7G 14% /w/workspace/gexfoundry_device-rest-go_master /dev/vda1 50.0G 7.2G 42.7G 14% /w/workspace/gexfoundry_device-rest-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 640 115 0 1081 1091 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) 07/23/20 _x86_64_ (4 CPU) 15:13:32 LINUX RESTART 15:14:02 tps rtps wtps bread/s bwrtn/s 15:15:01 92.04 39.29 52.76 7582.40 7737.59 15:16:01 3.36 0.00 3.36 0.00 104.48 15:17:01 0.43 0.00 0.43 0.00 6.96 15:18:01 0.50 0.00 0.50 0.00 6.95 15:19:01 0.23 0.00 0.23 0.00 3.01 Average: 19.08 7.76 11.32 1496.97 1551.97 15:14:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:15:01 154788 1726768 91.77 2620 1163132 1113740 38.01 406768 1159500 120 15:16:01 160316 1721240 91.48 2620 1163164 1074136 36.66 405800 1155908 20 15:17:01 159880 1721676 91.50 2620 1163172 1074328 36.66 406868 1155896 12 15:18:01 160888 1720668 91.45 2620 1163172 1074136 36.66 405824 1155896 8 15:19:01 159708 1721848 91.51 2620 1163180 1074136 36.66 415088 1147792 8 Average: 159116 1722440 91.54 2620 1163164 1082095 36.93 408070 1154998 34 15:14:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:15:01 eth0 623.49 419.43 1338.36 241.57 0.00 0.00 0.00 15:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:15:01 docker0 50.25 33.92 3.84 134.28 0.00 0.00 0.00 15:16:01 eth0 0.97 0.08 0.09 0.05 0.00 0.00 0.00 15:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:17:01 eth0 1.83 0.88 1.18 0.41 0.00 0.00 0.00 15:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:18:01 eth0 0.12 0.08 0.01 0.04 0.00 0.00 0.00 15:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:19:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 15:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 123.70 83.03 264.49 47.79 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 9.92 6.70 0.76 26.51 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) 07/23/20 _x86_64_ (4 CPU) 15:13:32 LINUX RESTART 15:14:02 CPU %user %nice %system %iowait %steal %idle 15:15:01 all 14.27 0.00 5.86 3.74 0.02 76.12 15:15:01 0 14.25 0.00 6.50 5.10 0.00 74.14 15:15:01 1 13.86 0.00 6.05 4.14 0.02 75.93 15:15:01 2 15.04 0.00 5.57 1.84 0.02 77.53 15:15:01 3 13.92 0.00 5.33 3.86 0.03 76.85 15:16:01 all 0.16 0.00 0.04 0.00 0.00 99.80 15:16:01 0 0.03 0.00 0.02 0.00 0.00 99.95 15:16:01 1 0.07 0.00 0.05 0.00 0.00 99.88 15:16:01 2 0.03 0.00 0.03 0.00 0.00 99.93 15:16:01 3 0.48 0.00 0.03 0.00 0.00 99.48 15:17:01 all 0.16 0.00 0.03 0.00 0.00 99.81 15:17:01 0 0.03 0.00 0.02 0.00 0.00 99.95 15:17:01 1 0.08 0.00 0.05 0.00 0.00 99.87 15:17:01 2 0.05 0.00 0.03 0.00 0.00 99.92 15:17:01 3 0.47 0.00 0.03 0.00 0.00 99.50 15:18:01 all 0.15 0.00 0.02 0.00 0.00 99.83 15:18:01 0 0.00 0.00 0.02 0.00 0.00 99.98 15:18:01 1 0.07 0.00 0.03 0.00 0.00 99.90 15:18:01 2 0.03 0.00 0.02 0.00 0.00 99.95 15:18:01 3 0.52 0.00 0.03 0.00 0.00 99.45 15:19:01 all 0.15 0.00 0.04 0.00 0.00 99.81 15:19:01 0 0.02 0.00 0.02 0.00 0.00 99.97 15:19:01 1 0.53 0.00 0.03 0.00 0.00 99.43 15:19:01 2 0.03 0.00 0.03 0.00 0.00 99.93 15:19:01 3 0.02 0.00 0.05 0.00 0.00 99.93 Average: all 2.93 0.00 1.18 0.73 0.00 95.16 Average: 0 2.81 0.00 1.29 1.00 0.00 94.90 Average: 1 2.88 0.00 1.22 0.81 0.00 95.08 Average: 2 2.98 0.00 1.12 0.36 0.00 95.53 Average: 3 3.03 0.00 1.07 0.76 0.01 95.13