---> uname -a: Linux 34f2db87804c 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: 2933.438 BogoMIPS: 5866.87 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 6.9G 43.0G 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 6.9G 43.0G 14% /etc/resolv.conf /dev/vda1 50.0G 6.9G 43.0G 14% /etc/hostname /dev/vda1 50.0G 6.9G 43.0G 14% /etc/hosts /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/undry_go-mod-configuration_PR-15 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/undry_go-mod-configuration_PR-15@tmp /dev/vda1 50.0G 6.9G 43.0G 14% /var/log/sa-host ---> free -m: total used free shared buff/cache available Mem: 1837 628 138 0 1070 1102 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) 09/24/20 _x86_64_ (4 CPU) 19:30:50 LINUX RESTART (4 CPU) 19:32:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:33:01 46.06 14.16 31.90 0.00 5039.31 4578.02 0.00 19:34:01 7.41 2.71 4.70 0.00 145.74 132.48 0.00 19:35:01 0.33 0.00 0.33 0.00 0.00 4.45 0.00 19:36:01 0.18 0.00 0.18 0.00 0.00 1.88 0.00 19:37:01 0.42 0.00 0.42 0.00 0.00 6.99 0.00 19:38:01 0.28 0.00 0.28 0.00 0.00 2.88 0.00 Average: 9.02 2.78 6.24 0.00 854.00 778.54 0.00 19:32:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:33:01 118232 0 610224 32.43 2620 1150480 1594884 54.43 448036 1150648 220 19:34:01 167556 0 556620 29.58 2620 1154760 1156476 39.47 401848 1149216 16 19:35:01 176808 0 547360 29.09 2620 1154768 1092952 37.30 396192 1146860 20 19:36:01 175568 0 548600 29.16 2620 1154768 1092988 37.30 412204 1132100 20 19:37:01 175192 0 548972 29.18 2620 1154772 1093024 37.30 413616 1130824 16 19:38:01 178056 0 546100 29.02 2620 1154780 1061012 36.21 441184 1101156 16 Average: 165235 0 559646 29.74 2620 1154055 1181889 40.34 418847 1135134 51 19:32:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:33:01 eth0 119.45 95.39 549.07 50.58 0.00 0.00 0.00 0.00 19:33:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:33:01 veth4c99558 0.78 0.91 0.14 0.70 0.00 0.00 0.00 0.00 19:33:01 docker0 0.78 0.79 0.13 0.69 0.00 0.00 0.00 0.00 19:34:01 eth0 10.01 7.16 7.41 10.94 0.00 0.00 0.00 0.00 19:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:34:01 docker0 0.00 0.03 0.00 0.00 0.00 0.00 0.00 0.00 19:35:01 eth0 4.58 1.26 1.57 0.80 0.00 0.00 0.00 0.00 19:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:35:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:36:01 eth0 2.24 0.30 0.45 0.21 0.00 0.00 0.00 0.00 19:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:36:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:37:01 eth0 1.43 0.95 0.92 0.67 0.00 0.00 0.00 0.00 19:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:38:01 eth0 0.13 0.10 0.01 0.01 0.00 0.00 0.00 0.00 19:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 22.74 17.34 92.13 10.44 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 0.13 0.14 0.02 0.11 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) 09/24/20 _x86_64_ (4 CPU) 19:30:50 LINUX RESTART (4 CPU) 19:32:01 CPU %user %nice %system %iowait %steal %idle 19:33:01 all 7.17 0.00 4.54 1.13 38.10 49.07 19:33:01 0 5.12 0.00 4.84 1.30 39.27 49.47 19:33:01 1 8.13 0.00 4.60 1.16 37.77 48.34 19:33:01 2 8.27 0.00 4.37 1.16 38.46 47.74 19:33:01 3 7.24 0.00 4.34 0.88 36.86 50.68 19:34:01 all 0.48 0.00 0.20 0.17 4.32 94.83 19:34:01 0 0.83 0.00 0.16 0.23 4.08 94.70 19:34:01 1 0.35 0.00 0.27 0.29 5.29 93.80 19:34:01 2 0.37 0.00 0.15 0.02 4.84 94.62 19:34:01 3 0.38 0.00 0.21 0.15 3.03 96.23 19:35:01 all 0.12 0.00 0.11 0.00 4.75 95.02 19:35:01 0 0.11 0.00 0.11 0.00 4.72 95.05 19:35:01 1 0.08 0.00 0.11 0.00 4.31 95.50 19:35:01 2 0.18 0.00 0.13 0.00 4.90 94.80 19:35:01 3 0.10 0.00 0.08 0.00 5.08 94.74 19:36:01 all 0.04 0.00 0.04 0.00 1.92 98.00 19:36:01 0 0.02 0.00 0.02 0.00 1.83 98.13 19:36:01 1 0.03 0.00 0.11 0.00 2.30 97.55 19:36:01 2 0.02 0.00 0.00 0.00 1.23 98.75 19:36:01 3 0.10 0.00 0.02 0.00 2.30 97.58 19:37:01 all 0.05 0.00 0.05 0.00 2.04 97.86 19:37:01 0 0.05 0.00 0.03 0.00 1.35 98.57 19:37:01 1 0.00 0.00 0.12 0.00 1.20 98.68 19:37:01 2 0.06 0.00 0.05 0.00 4.50 95.39 19:37:01 3 0.07 0.00 0.02 0.00 1.04 98.88 19:38:01 all 0.10 0.00 0.12 0.00 0.76 99.02 19:38:01 0 0.03 0.00 0.08 0.00 0.66 99.22 19:38:01 1 0.03 0.00 0.25 0.00 0.84 98.87 19:38:01 2 0.05 0.00 0.08 0.00 1.17 98.70 19:38:01 3 0.28 0.00 0.05 0.00 0.37 99.30 Average: all 1.45 0.00 0.92 0.24 9.29 88.10 Average: 0 1.14 0.00 0.98 0.28 9.49 88.10 Average: 1 1.58 0.00 0.99 0.26 9.24 87.94 Average: 2 1.61 0.00 0.86 0.21 9.69 87.63 Average: 3 1.48 0.00 0.86 0.19 8.74 88.73