---> uname -a: Linux 0b68ce44aa15 3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018 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 L1tf: Mitigation; PTE Inversion; VMX SMT disabled, L1D conditional cache flushes Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline 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 6.4G 43.6G 13% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 919.1M 0 919.1M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 6.4G 43.6G 13% /etc/resolv.conf /dev/vda1 50.0G 6.4G 43.6G 13% /etc/hostname /dev/vda1 50.0G 6.4G 43.6G 13% /etc/hosts /dev/vda1 50.0G 6.4G 43.6G 13% /var/log/sa /dev/vda1 50.0G 6.4G 43.6G 13% /w/workspace/exfoundry_go-mod-messaging_PR-51 /dev/vda1 50.0G 6.4G 43.6G 13% /w/workspace/exfoundry_go-mod-messaging_PR-51@tmp ---> free -m: total used free shared buff/cache available Mem: 1838 608 76 0 1153 1125 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 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 04/14/20 _x86_64_ (4 CPU) 23:49:41 LINUX RESTART 23:50:02 tps rtps wtps bread/s bwrtn/s 23:51:01 73.66 30.82 42.84 4756.94 7299.19 23:52:01 4.11 0.00 4.11 0.00 123.86 23:53:01 0.70 0.03 0.67 0.67 8.99 23:54:01 0.83 0.07 0.77 4.80 11.64 23:55:01 0.67 0.00 0.67 0.00 8.63 Average: 15.81 6.11 9.70 940.21 1471.73 23:50:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 23:51:01 96752 1785552 94.86 2620 1239784 933592 31.85 441704 1182532 16 23:52:01 103160 1779144 94.52 2620 1240000 916644 31.28 438528 1182504 12 23:53:01 102736 1779568 94.54 2620 1240192 902864 30.81 438228 1182476 8 23:54:01 104744 1777560 94.44 2620 1240176 900248 30.72 436836 1182624 12 23:55:01 104616 1777688 94.44 2620 1240180 900332 30.72 437332 1182624 8 Average: 102402 1779902 94.56 2620 1240066 910736 31.07 438526 1182552 11 23:50:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 23:51:01 eth0 500.56 307.01 1021.65 89.03 0.00 0.00 0.00 23:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:51:01 docker0 1.03 0.88 0.23 1.68 0.00 0.00 0.00 23:52:01 eth0 1.82 0.93 0.93 0.42 0.00 0.00 0.00 23:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:53:01 eth0 1.97 0.35 0.39 0.17 0.00 0.00 0.00 23:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:54:01 eth0 3.85 0.58 0.76 0.43 0.00 0.00 0.00 23:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:55:01 eth0 1.00 0.70 0.54 0.37 0.00 0.00 0.00 23:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 100.55 61.12 202.22 17.85 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.20 0.17 0.05 0.33 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 04/14/20 _x86_64_ (4 CPU) 23:49:41 LINUX RESTART 23:50:02 CPU %user %nice %system %iowait %steal %idle 23:51:01 all 13.12 0.00 4.49 2.03 0.02 80.35 23:51:01 0 11.62 0.00 5.35 1.32 0.02 81.70 23:51:01 1 11.53 0.00 4.30 0.80 0.02 83.35 23:51:01 2 13.49 0.00 4.61 5.53 0.02 76.35 23:51:01 3 15.84 0.00 3.68 0.48 0.03 79.97 23:52:01 all 0.08 0.00 0.05 0.00 0.00 99.87 23:52:01 0 0.07 0.00 0.07 0.00 0.00 99.87 23:52:01 1 0.12 0.00 0.03 0.00 0.00 99.85 23:52:01 2 0.08 0.00 0.03 0.00 0.00 99.88 23:52:01 3 0.08 0.00 0.05 0.00 0.00 99.87 23:53:01 all 0.20 0.00 0.06 0.00 0.00 99.73 23:53:01 0 0.08 0.00 0.08 0.00 0.00 99.83 23:53:01 1 0.12 0.00 0.05 0.00 0.00 99.83 23:53:01 2 0.07 0.00 0.07 0.00 0.00 99.87 23:53:01 3 0.55 0.00 0.05 0.00 0.00 99.40 23:54:01 all 0.17 0.00 0.06 0.00 0.00 99.76 23:54:01 0 0.42 0.00 0.05 0.00 0.00 99.53 23:54:01 1 0.05 0.00 0.05 0.00 0.00 99.90 23:54:01 2 0.03 0.00 0.07 0.00 0.00 99.90 23:54:01 3 0.20 0.00 0.05 0.00 0.00 99.75 23:55:01 all 0.20 0.00 0.05 0.00 0.00 99.75 23:55:01 0 0.53 0.00 0.03 0.00 0.00 99.43 23:55:01 1 0.07 0.00 0.03 0.00 0.00 99.90 23:55:01 2 0.12 0.00 0.07 0.00 0.00 99.82 23:55:01 3 0.08 0.00 0.05 0.00 0.00 99.87 Average: all 2.71 0.00 0.92 0.40 0.00 95.97 Average: 0 2.50 0.00 1.10 0.26 0.00 96.14 Average: 1 2.33 0.00 0.88 0.16 0.00 96.63 Average: 2 2.71 0.00 0.95 1.09 0.00 95.25 Average: 3 3.28 0.00 0.76 0.09 0.01 95.85