---> uname -a: Linux 54156bb70ffa 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 8.2G 41.8G 16% / 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 8.2G 41.8G 16% /etc/resolv.conf /dev/vda1 50.0G 8.2G 41.8G 16% /etc/hostname /dev/vda1 50.0G 8.2G 41.8G 16% /etc/hosts /dev/vda1 50.0G 8.2G 41.8G 16% /var/log/sa-host /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/xfoundry_go-mod-messaging_master /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/xfoundry_go-mod-messaging_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 783 114 0 939 989 Swap: 1023 2 1021 ---> 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 16: eth0@if17: 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) 09/17/20 _x86_64_ (4 CPU) 04:53:43 LINUX RESTART (4 CPU) 04:55:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 04:56:01 3.21 0.00 3.21 0.00 0.00 103.00 0.00 04:57:01 0.40 0.00 0.40 0.00 0.00 5.45 0.00 04:58:01 0.17 0.00 0.17 0.00 0.00 2.60 0.00 04:59:01 0.27 0.00 0.27 0.00 0.00 3.61 0.00 05:00:01 260.86 132.54 128.31 0.00 7567.19 46432.81 0.00 05:01:01 224.97 108.55 116.41 0.00 8206.38 23126.00 0.00 Average: 81.74 40.23 41.51 0.00 2632.36 11624.12 0.00 04:55:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:56:01 183668 0 577188 30.68 2620 1118080 1074220 36.66 421420 1118428 12 04:57:01 184212 0 576640 30.65 2620 1118084 1072164 36.59 421600 1118020 8 04:58:01 180884 0 579960 30.82 2620 1118092 1072444 36.60 424776 1117772 8 04:59:01 180348 0 580496 30.85 2620 1118092 1072396 36.60 434764 1108620 8 05:00:01 101336 0 711348 37.81 2596 1066276 1514528 51.69 610640 961392 78820 05:01:01 113900 0 795892 42.30 1492 970272 1285196 43.86 624348 823580 8 Average: 157391 0 636921 33.85 2428 1084816 1181825 40.33 489591 1041302 13144 04:55:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 04:56:01 eth0 0.40 0.08 0.02 0.01 0.00 0.00 0.00 0.00 04:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:57:01 eth0 0.47 0.10 0.05 0.01 0.00 0.00 0.00 0.00 04:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:58:01 eth0 3.33 1.35 3.16 0.27 0.00 0.00 0.00 0.00 04:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:59:01 eth0 0.50 0.45 0.27 0.21 0.00 0.00 0.00 0.00 04:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:00:01 eth0 784.03 716.95 7027.76 62.34 0.00 0.00 0.00 0.00 05:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:00:01 docker0 12.53 11.13 1.14 42.13 0.00 0.00 0.00 0.00 05:01:01 eth0 202.79 162.89 999.64 94.95 0.00 0.00 0.00 0.00 05:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:01:01 docker0 28.09 31.51 1.76 198.56 0.00 0.00 0.00 0.00 Average: eth0 165.39 147.09 1339.44 26.34 0.00 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 6.78 7.12 0.48 40.19 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) 09/17/20 _x86_64_ (4 CPU) 04:53:43 LINUX RESTART (4 CPU) 04:55:01 CPU %user %nice %system %iowait %steal %idle 04:56:01 all 0.17 0.00 0.05 0.00 0.00 99.78 04:56:01 0 0.05 0.00 0.05 0.00 0.00 99.90 04:56:01 1 0.07 0.00 0.08 0.00 0.00 99.85 04:56:01 2 0.45 0.00 0.03 0.00 0.00 99.52 04:56:01 3 0.13 0.00 0.03 0.00 0.00 99.83 04:57:01 all 0.15 0.00 0.03 0.00 0.00 99.81 04:57:01 0 0.03 0.00 0.02 0.00 0.00 99.95 04:57:01 1 0.15 0.00 0.05 0.00 0.02 99.78 04:57:01 2 0.05 0.00 0.03 0.00 0.00 99.92 04:57:01 3 0.38 0.00 0.02 0.00 0.00 99.60 04:58:01 all 0.18 0.00 0.03 0.00 0.00 99.79 04:58:01 0 0.05 0.00 0.02 0.00 0.00 99.93 04:58:01 1 0.10 0.00 0.05 0.00 0.00 99.85 04:58:01 2 0.10 0.00 0.02 0.00 0.00 99.88 04:58:01 3 0.48 0.00 0.03 0.00 0.00 99.48 04:59:01 all 0.17 0.00 0.02 0.00 0.00 99.81 04:59:01 0 0.05 0.00 0.05 0.00 0.00 99.90 04:59:01 1 0.03 0.00 0.00 0.00 0.00 99.97 04:59:01 2 0.05 0.00 0.03 0.00 0.00 99.92 04:59:01 3 0.53 0.00 0.02 0.00 0.00 99.45 05:00:01 all 11.36 0.00 6.36 2.59 0.04 79.64 05:00:01 0 11.37 0.00 6.78 2.44 0.03 79.38 05:00:01 1 11.86 0.00 6.69 2.97 0.03 78.45 05:00:01 2 11.08 0.00 6.07 3.19 0.03 79.63 05:00:01 3 11.14 0.00 5.92 1.78 0.05 81.11 05:01:01 all 9.61 0.00 6.26 3.50 0.04 80.58 05:01:01 0 8.10 0.00 6.21 1.06 0.03 84.60 05:01:01 1 9.47 0.00 6.65 5.14 0.05 78.69 05:01:01 2 9.92 0.00 6.55 6.44 0.03 77.06 05:01:01 3 10.97 0.00 5.64 1.34 0.05 82.00 Average: all 3.57 0.00 2.11 1.01 0.01 93.30 Average: 0 3.23 0.00 2.16 0.58 0.01 94.02 Average: 1 3.58 0.00 2.24 1.34 0.02 92.83 Average: 2 3.57 0.00 2.10 1.59 0.01 92.72 Average: 3 3.90 0.00 1.92 0.51 0.02 93.65