---> uname -a: Linux 0356f6e49520 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: 2933.436 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 6.6G 43.4G 13% / 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 6.6G 43.4G 13% /etc/resolv.conf /dev/vda1 50.0G 6.6G 43.4G 13% /etc/hostname /dev/vda1 50.0G 6.6G 43.4G 13% /etc/hosts /dev/vda1 50.0G 6.6G 43.4G 13% /var/log/sa-host /dev/vda1 50.0G 6.6G 43.4G 13% /w/workspace/undry_go-mod-configuration_PR-16 /dev/vda1 50.0G 6.6G 43.4G 13% /w/workspace/undry_go-mod-configuration_PR-16@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 667 140 0 1029 1063 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 3.10.0-1127.el7.x86_64 (centos-7-docker-5eb134fb-50d3-af0a-1802-9f6851a35141.vexxhost.lo) 09/24/20 _x86_64_ (4 CPU) 20:52:13 LINUX RESTART (4 CPU) 20:53:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 20:54:02 56.53 15.93 40.60 0.00 5053.58 4671.41 0.00 20:55:01 1.61 0.00 1.61 0.00 0.00 32.61 0.00 20:56:01 0.38 0.00 0.38 0.00 0.00 5.18 0.00 20:57:01 0.28 0.00 0.28 0.00 0.00 4.03 0.00 20:58:01 0.20 0.00 0.20 0.00 0.00 2.90 0.00 20:59:01 0.33 0.00 0.33 0.00 0.00 4.45 0.00 21:00:01 0.27 0.02 0.25 0.00 0.13 2.70 0.00 21:01:01 0.22 0.02 0.20 0.00 0.13 1.65 0.00 21:02:01 0.48 0.12 0.37 0.00 2.13 5.96 0.00 21:03:01 0.25 0.00 0.25 0.00 0.00 2.58 0.00 21:04:01 0.20 0.00 0.20 0.00 0.00 1.75 0.00 21:05:01 0.17 0.00 0.17 0.00 0.00 1.62 0.00 21:06:01 0.20 0.00 0.20 0.00 0.00 1.90 0.00 21:07:01 0.30 0.00 0.30 0.00 0.00 3.80 0.00 21:08:01 0.92 0.20 0.72 0.00 6.26 14.01 0.00 Average: 4.16 1.09 3.08 0.00 338.30 317.83 0.00 20:53:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 20:54:02 172580 0 588812 31.29 2620 1117544 1139772 38.90 444452 1104848 128 20:55:01 177060 0 584328 31.06 2620 1117548 1104596 37.70 443116 1102284 20 20:56:01 179084 0 582296 30.95 2620 1117556 1089152 37.17 441816 1101916 20 20:57:01 178868 0 582512 30.96 2620 1117556 1080928 36.89 447180 1097056 16 20:58:01 179408 0 581968 30.93 2620 1117560 1080928 36.89 448056 1095936 8 20:59:01 179072 0 582296 30.95 2620 1117568 1081000 36.89 448692 1095936 8 21:00:01 179352 0 582008 30.93 2620 1117576 1080928 36.89 448324 1095936 8 21:01:01 178172 0 583180 30.99 2620 1117584 1083404 36.97 437860 1107072 8 21:02:01 178596 0 582612 30.96 2620 1117728 1081436 36.91 437356 1107148 12 21:03:01 178952 0 582252 30.95 2620 1117732 1081436 36.91 436532 1108012 8 21:04:01 175852 0 585352 31.11 2620 1117732 1081508 36.91 439960 1107572 8 21:05:01 176244 0 584952 31.09 2620 1117740 1081436 36.91 439348 1107572 12 21:06:01 175992 0 585200 31.10 2620 1117744 1081532 36.91 440004 1107572 20 21:07:01 175632 0 585556 31.12 2620 1117748 1081556 36.91 440140 1107572 8 21:08:01 175260 0 585896 31.14 2620 1117780 1081556 36.91 440340 1107116 12 Average: 177342 0 583948 31.04 2620 1117646 1087411 37.11 442212 1103570 20 20:53:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 20:54:02 eth0 265.67 175.50 811.75 75.94 0.00 0.00 0.00 0.00 20:54:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:54:02 docker0 0.75 0.68 0.14 0.69 0.00 0.00 0.00 0.00 20:55:01 eth0 4.76 1.22 1.58 0.99 0.00 0.00 0.00 0.00 20:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:56:01 eth0 1.18 0.47 0.56 0.39 0.00 0.00 0.00 0.00 20:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:57:01 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 0.00 20:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:58:01 eth0 0.17 0.08 0.01 0.01 0.00 0.00 0.00 0.00 20:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:59:01 eth0 0.38 0.30 0.17 0.08 0.00 0.00 0.00 0.00 20:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:00:01 eth0 0.13 0.08 0.01 0.01 0.00 0.00 0.00 0.00 21:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:01:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 0.00 21:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:02:01 eth0 0.17 0.08 0.01 0.01 0.00 0.00 0.00 0.00 21:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:03:01 eth0 0.15 0.08 0.01 0.01 0.00 0.00 0.00 0.00 21:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:04:01 eth0 0.45 0.32 0.30 0.08 0.00 0.00 0.00 0.00 21:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:05:01 eth0 12.08 0.10 1.08 0.01 0.00 0.00 0.00 0.00 21:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:06:01 eth0 3.46 0.30 0.59 0.20 0.00 0.00 0.00 0.00 21:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:07:01 eth0 1.90 1.00 1.07 0.78 0.00 0.00 0.00 0.00 21:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:08:01 eth0 0.35 0.15 0.09 0.07 0.00 0.00 0.00 0.00 21:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 19.44 12.02 54.61 5.25 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 0.05 0.05 0.01 0.05 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) 20:52:13 LINUX RESTART (4 CPU) 20:53:01 CPU %user %nice %system %iowait %steal %idle 20:54:02 all 9.67 0.00 3.50 1.78 1.11 83.93 20:54:02 0 10.78 0.00 3.28 0.27 0.98 84.69 20:54:02 1 9.72 0.00 4.17 2.97 1.16 81.98 20:54:02 2 9.09 0.00 3.52 2.37 1.07 83.96 20:54:02 3 9.08 0.00 3.04 1.52 1.23 85.12 20:55:01 all 0.19 0.00 0.13 0.00 0.17 99.52 20:55:01 0 0.08 0.00 0.12 0.00 0.14 99.66 20:55:01 1 0.12 0.00 0.17 0.00 0.29 99.42 20:55:01 2 0.49 0.00 0.08 0.00 0.15 99.27 20:55:01 3 0.05 0.00 0.15 0.00 0.08 99.71 20:56:01 all 0.11 0.00 0.03 0.00 0.14 99.72 20:56:01 0 0.02 0.00 0.03 0.00 0.05 99.90 20:56:01 1 0.07 0.00 0.05 0.00 0.20 99.68 20:56:01 2 0.33 0.00 0.03 0.00 0.23 99.40 20:56:01 3 0.02 0.00 0.02 0.00 0.07 99.90 20:57:01 all 0.17 0.00 0.04 0.00 0.03 99.76 20:57:01 0 0.05 0.00 0.02 0.00 0.02 99.92 20:57:01 1 0.10 0.00 0.07 0.00 0.05 99.78 20:57:01 2 0.52 0.00 0.05 0.00 0.05 99.38 20:57:01 3 0.02 0.00 0.02 0.00 0.00 99.97 20:58:01 all 0.15 0.00 0.06 0.00 0.01 99.78 20:58:01 0 0.03 0.00 0.03 0.00 0.02 99.92 20:58:01 1 0.22 0.00 0.05 0.00 0.02 99.72 20:58:01 2 0.35 0.00 0.13 0.00 0.00 99.52 20:58:01 3 0.02 0.00 0.02 0.00 0.00 99.97 20:59:01 all 0.11 0.00 0.04 0.00 0.00 99.85 20:59:01 0 0.02 0.00 0.03 0.00 0.00 99.95 20:59:01 1 0.35 0.00 0.07 0.00 0.00 99.58 20:59:01 2 0.05 0.00 0.03 0.00 0.00 99.92 20:59:01 3 0.02 0.00 0.02 0.00 0.00 99.97 21:00:01 all 0.04 0.00 0.03 0.00 0.00 99.93 21:00:01 0 0.02 0.00 0.02 0.00 0.00 99.97 21:00:01 1 0.07 0.00 0.03 0.00 0.00 99.90 21:00:01 2 0.05 0.00 0.02 0.00 0.00 99.93 21:00:01 3 0.03 0.00 0.03 0.00 0.02 99.92 21:01:01 all 0.10 0.00 0.04 0.00 0.01 99.85 21:01:01 0 0.02 0.00 0.02 0.00 0.00 99.97 21:01:01 1 0.35 0.00 0.08 0.00 0.02 99.55 21:01:01 2 0.03 0.00 0.03 0.00 0.02 99.92 21:01:01 3 0.02 0.00 0.03 0.00 0.00 99.95 21:02:01 all 0.15 0.00 0.04 0.00 0.00 99.81 21:02:01 0 0.03 0.00 0.03 0.00 0.00 99.93 21:02:01 1 0.53 0.00 0.03 0.00 0.00 99.43 21:02:01 2 0.03 0.00 0.05 0.00 0.00 99.92 21:02:01 3 0.02 0.00 0.03 0.00 0.00 99.95 21:03:01 all 0.13 0.00 0.03 0.00 0.00 99.83 21:03:01 0 0.02 0.00 0.02 0.00 0.00 99.97 21:03:01 1 0.45 0.00 0.07 0.00 0.02 99.47 21:03:01 2 0.03 0.00 0.03 0.00 0.00 99.93 21:03:01 3 0.03 0.00 0.02 0.00 0.00 99.95 21:04:01 all 0.12 0.00 0.03 0.00 0.00 99.85 21:04:01 0 0.02 0.00 0.02 0.00 0.00 99.97 21:04:01 1 0.40 0.00 0.07 0.00 0.02 99.52 21:04:01 2 0.03 0.00 0.03 0.00 0.00 99.93 21:04:01 3 0.03 0.00 0.00 0.00 0.00 99.97 21:04:01 CPU %user %nice %system %iowait %steal %idle 21:05:01 all 0.14 0.00 0.03 0.00 0.03 99.80 21:05:01 0 0.02 0.00 0.00 0.00 0.05 99.93 21:05:01 1 0.47 0.00 0.03 0.00 0.02 99.48 21:05:01 2 0.07 0.00 0.05 0.00 0.03 99.85 21:05:01 3 0.02 0.00 0.03 0.00 0.02 99.93 21:06:01 all 0.11 0.00 0.03 0.00 0.01 99.84 21:06:01 0 0.17 0.00 0.05 0.00 0.00 99.78 21:06:01 1 0.22 0.00 0.03 0.00 0.02 99.73 21:06:01 2 0.03 0.00 0.03 0.00 0.02 99.92 21:06:01 3 0.03 0.00 0.02 0.00 0.02 99.93 21:07:01 all 0.08 0.00 0.03 0.00 0.01 99.87 21:07:01 0 0.18 0.00 0.05 0.00 0.00 99.77 21:07:01 1 0.08 0.00 0.05 0.00 0.03 99.83 21:07:01 2 0.03 0.00 0.02 0.00 0.02 99.93 21:07:01 3 0.02 0.00 0.02 0.00 0.00 99.97 21:08:01 all 0.19 0.00 0.05 0.00 0.00 99.75 21:08:01 0 0.53 0.00 0.05 0.00 0.02 99.40 21:08:01 1 0.07 0.00 0.08 0.00 0.00 99.85 21:08:01 2 0.02 0.00 0.03 0.00 0.00 99.95 21:08:01 3 0.13 0.00 0.05 0.00 0.00 99.82 Average: all 0.76 0.00 0.27 0.12 0.10 98.75 Average: 0 0.79 0.00 0.25 0.02 0.08 98.86 Average: 1 0.87 0.00 0.33 0.20 0.12 98.47 Average: 2 0.74 0.00 0.27 0.16 0.10 98.73 Average: 3 0.63 0.00 0.23 0.10 0.09 98.95