---> uname -a: Linux c01e02bc1e0d 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 7.2G 42.8G 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 42.8G 14% /etc/resolv.conf /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hostname /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hosts /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/exfoundry_go-mod-bootstrap_PR-79 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/exfoundry_go-mod-bootstrap_PR-79@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 653 114 0 1069 1078 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) 06/16/20 _x86_64_ (4 CPU) 22:59:17 LINUX RESTART 23:00:01 tps rtps wtps bread/s bwrtn/s 23:01:01 42.45 10.00 32.45 4338.41 2164.42 23:02:01 1.63 0.07 1.57 1.47 29.53 23:03:01 0.28 0.00 0.28 0.00 3.40 23:04:01 0.18 0.00 0.18 0.00 2.15 23:05:01 0.17 0.00 0.17 0.00 1.82 23:06:01 0.45 0.18 0.27 16.26 3.38 Average: 7.53 1.71 5.82 726.34 367.61 23:00:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 23:01:01 151760 1729796 91.93 2620 1156116 1120276 38.23 407924 1160252 20 23:02:01 158688 1722868 91.57 2620 1156260 1077136 36.76 406720 1156056 12 23:03:01 158644 1722912 91.57 2620 1156264 1077256 36.76 407448 1156052 8 23:04:01 155344 1726212 91.74 2620 1156264 1077244 36.76 411064 1155440 12 23:05:01 155384 1726172 91.74 2620 1156272 1077220 36.76 416712 1149764 16 23:06:01 151100 1730456 91.97 2620 1156644 1089332 37.18 419996 1150136 12 Average: 155153 1726403 91.75 2620 1156303 1086411 37.08 411644 1154617 13 23:00:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 23:01:01 eth0 132.65 92.73 447.89 36.07 0.00 0.00 0.00 23:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:01:01 docker0 1.40 1.37 0.33 2.69 0.00 0.00 0.00 23:02:01 eth0 0.80 0.07 0.12 0.01 0.00 0.00 0.00 23:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 eth0 1.67 0.27 0.37 0.14 0.00 0.00 0.00 23:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 eth0 1.48 0.62 0.59 0.46 0.00 0.00 0.00 23:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:05:01 eth0 0.80 0.50 0.41 0.27 0.00 0.00 0.00 23:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:06:01 eth0 1.68 1.12 1.51 0.52 0.00 0.00 0.00 23:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 23.19 15.89 75.18 6.25 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.23 0.23 0.06 0.45 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) 06/16/20 _x86_64_ (4 CPU) 22:59:17 LINUX RESTART 23:00:01 CPU %user %nice %system %iowait %steal %idle 23:01:01 all 3.28 0.00 1.67 1.66 0.02 93.37 23:01:01 0 3.56 0.00 1.66 0.13 0.02 94.63 23:01:01 1 2.91 0.00 1.85 5.46 0.02 89.76 23:01:01 2 3.99 0.00 1.67 0.97 0.02 93.35 23:01:01 3 2.68 0.00 1.47 0.08 0.03 95.74 23:02:01 all 0.16 0.00 0.04 0.00 0.00 99.80 23:02:01 0 0.52 0.00 0.07 0.02 0.00 99.40 23:02:01 1 0.05 0.00 0.03 0.00 0.00 99.92 23:02:01 2 0.07 0.00 0.05 0.00 0.00 99.88 23:02:01 3 0.02 0.00 0.02 0.00 0.00 99.97 23:03:01 all 0.14 0.00 0.03 0.00 0.00 99.84 23:03:01 0 0.42 0.00 0.03 0.00 0.00 99.55 23:03:01 1 0.03 0.00 0.02 0.00 0.00 99.95 23:03:01 2 0.05 0.00 0.03 0.00 0.00 99.92 23:03:01 3 0.02 0.00 0.02 0.00 0.00 99.97 23:04:01 all 0.15 0.00 0.03 0.00 0.00 99.82 23:04:01 0 0.07 0.00 0.03 0.00 0.00 99.90 23:04:01 1 0.03 0.00 0.02 0.00 0.00 99.95 23:04:01 2 0.50 0.00 0.03 0.00 0.00 99.47 23:04:01 3 0.00 0.00 0.02 0.00 0.00 99.98 23:05:01 all 0.15 0.00 0.03 0.00 0.00 99.82 23:05:01 0 0.02 0.00 0.02 0.00 0.00 99.97 23:05:01 1 0.03 0.00 0.02 0.00 0.00 99.95 23:05:01 2 0.53 0.00 0.07 0.00 0.00 99.40 23:05:01 3 0.05 0.00 0.03 0.00 0.00 99.92 23:06:01 all 0.18 0.00 0.05 0.00 0.00 99.76 23:06:01 0 0.08 0.00 0.03 0.02 0.00 99.87 23:06:01 1 0.10 0.00 0.07 0.00 0.00 99.83 23:06:01 2 0.52 0.00 0.07 0.00 0.00 99.42 23:06:01 3 0.03 0.00 0.02 0.00 0.00 99.95 Average: all 0.68 0.00 0.31 0.28 0.00 98.74 Average: 0 0.78 0.00 0.31 0.03 0.00 98.89 Average: 1 0.53 0.00 0.33 0.91 0.00 98.23 Average: 2 0.94 0.00 0.32 0.16 0.00 98.57 Average: 3 0.46 0.00 0.26 0.01 0.01 99.26