---> uname -a: Linux b8071ae0cfd6 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 8.5G 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/xfoundry_go-mod-bootstrap_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_go-mod-bootstrap_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 776 106 0 954 991 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 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) 07/30/20 _x86_64_ (4 CPU) 16:39:08 LINUX RESTART 16:40:01 tps rtps wtps bread/s bwrtn/s 16:41:01 21.08 4.65 16.43 1179.35 2015.65 16:42:01 1.48 0.00 1.48 0.00 28.23 16:43:01 0.23 0.00 0.23 0.00 3.25 16:44:01 302.71 157.84 144.87 7328.96 50451.52 16:45:01 256.94 125.48 131.45 8765.27 33558.60 Average: 116.56 57.63 58.93 3456.77 17221.97 16:40:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 16:41:01 165620 1715936 91.20 2620 1128776 1109460 37.86 432096 1124216 20 16:42:01 170704 1710852 90.93 2620 1128780 1074952 36.69 430956 1120900 16 16:43:01 167320 1714236 91.11 2620 1128788 1075180 36.69 435860 1119512 16 16:44:01 81464 1800092 95.67 2300 1045288 1508908 51.50 649096 912280 100824 16:45:01 109544 1772012 94.18 1528 972384 1564964 53.41 652120 819108 56 Average: 138930 1742626 92.62 2338 1080803 1266693 43.23 520026 1019203 20186 16:40:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 16:41:01 eth0 31.64 23.16 29.33 23.88 0.00 0.00 0.00 16:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:41:01 docker0 1.28 1.30 0.34 2.83 0.00 0.00 0.00 16:42:01 eth0 0.78 0.08 0.08 0.01 0.00 0.00 0.00 16:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:43:01 eth0 1.20 0.68 0.57 0.40 0.00 0.00 0.00 16:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:44:01 eth0 292.33 201.18 7000.20 28.82 0.00 0.00 0.00 16:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:44:01 docker0 18.77 15.87 1.95 45.84 0.00 0.00 0.00 16:45:01 eth0 244.49 168.88 2582.02 114.77 0.00 0.00 0.00 16:45:01 vetha65e611 0.00 0.05 0.00 0.00 0.00 0.00 0.00 16:45:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 16:45:01 docker0 57.65 79.57 4.55 235.82 0.00 0.00 0.00 Average: eth0 114.16 78.84 1923.61 33.59 0.00 0.00 0.00 Average: vetha65e611 0.00 0.01 0.00 0.00 0.00 0.00 0.00 Average: lo 0.02 0.02 0.00 0.00 0.00 0.00 0.00 Average: docker0 11.54 15.93 0.91 47.20 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) 07/30/20 _x86_64_ (4 CPU) 16:39:08 LINUX RESTART 16:40:01 CPU %user %nice %system %iowait %steal %idle 16:41:01 all 2.07 0.00 1.18 0.65 0.00 96.10 16:41:01 0 2.04 0.00 1.15 1.95 0.02 94.84 16:41:01 1 2.09 0.00 1.27 0.20 0.00 96.44 16:41:01 2 1.75 0.00 1.32 0.03 0.00 96.90 16:41:01 3 2.42 0.00 0.97 0.42 0.00 96.19 16:42:01 all 0.16 0.00 0.05 0.00 0.00 99.80 16:42:01 0 0.07 0.00 0.08 0.00 0.00 99.85 16:42:01 1 0.52 0.00 0.03 0.00 0.00 99.45 16:42:01 2 0.02 0.00 0.03 0.00 0.00 99.95 16:42:01 3 0.03 0.00 0.03 0.00 0.00 99.93 16:43:01 all 0.18 0.00 0.03 0.00 0.00 99.79 16:43:01 0 0.05 0.00 0.03 0.00 0.00 99.92 16:43:01 1 0.55 0.00 0.03 0.00 0.00 99.42 16:43:01 2 0.07 0.00 0.02 0.00 0.00 99.92 16:43:01 3 0.07 0.00 0.03 0.00 0.00 99.90 16:44:01 all 12.69 0.00 7.76 2.50 0.02 77.04 16:44:01 0 12.79 0.00 7.68 0.86 0.02 78.65 16:44:01 1 12.22 0.00 8.03 2.79 0.03 76.93 16:44:01 2 12.22 0.00 7.64 5.04 0.03 75.07 16:44:01 3 13.52 0.00 7.69 1.27 0.02 77.50 16:45:01 all 10.84 0.00 7.58 3.85 0.02 77.70 16:45:01 0 10.08 0.00 7.50 2.57 0.02 79.84 16:45:01 1 11.04 0.00 8.58 5.02 0.00 75.36 16:45:01 2 10.25 0.00 7.66 4.44 0.00 77.66 16:45:01 3 12.00 0.00 6.58 3.40 0.03 77.99 Average: all 5.15 0.00 3.29 1.39 0.01 90.16 Average: 0 4.97 0.00 3.27 1.07 0.01 90.68 Average: 1 5.25 0.00 3.56 1.59 0.01 89.59 Average: 2 4.83 0.00 3.31 1.89 0.01 89.97 Average: 3 5.56 0.00 3.04 1.01 0.01 90.38