---> uname -a: Linux 0548b3704678 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% /w/workspace/ndry_go-mod-configuration_master@tmp /dev/vda1 50.0G 8.2G 41.8G 16% /var/log/sa-host /dev/vda1 50.0G 8.2G 41.8G 16% /w/workspace/ndry_go-mod-configuration_master ---> free -m: total used free shared buff/cache available Mem: 1837 774 110 0 952 998 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) 09/15/20 _x86_64_ (4 CPU) 22:44:49 LINUX RESTART (4 CPU) 22:46:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 22:47:01 2.43 0.00 2.43 0.00 0.00 52.28 0.00 22:48:01 0.34 0.00 0.34 0.00 0.00 4.81 0.00 22:49:01 0.27 0.00 0.27 0.00 0.00 3.51 0.00 22:50:01 161.13 89.00 72.13 0.00 5519.56 30357.33 0.00 22:51:01 251.41 103.23 148.19 0.00 5886.02 33312.00 0.00 Average: 83.41 38.58 44.83 0.00 2289.32 12791.80 0.00 22:46:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 22:47:01 170172 0 570352 30.31 2620 1138412 1083240 36.97 407736 1144440 12 22:48:01 168240 0 572280 30.42 2620 1138416 1083424 36.98 410764 1143884 8 22:49:01 167064 0 573452 30.48 2620 1138420 1083532 36.98 413696 1141648 8 22:50:01 177740 0 627156 33.33 2620 1074040 1236028 42.18 444892 1065616 40 22:51:01 232056 0 727128 38.65 1720 920652 1292092 44.10 605780 761660 52 Average: 183054 0 614074 32.64 2440 1081988 1155663 39.44 456574 1051450 24 22:46:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 22:47:01 eth0 0.40 0.10 0.02 0.02 0.00 0.00 0.00 0.00 22:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:48:01 eth0 5.79 2.35 4.78 0.16 0.00 0.00 0.00 0.00 22:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:49:01 eth0 0.97 0.43 0.34 0.21 0.00 0.00 0.00 0.00 22:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:50:01 veth9d14f89 0.00 0.03 0.00 0.00 0.00 0.00 0.00 0.00 22:50:01 eth0 383.72 345.96 3783.71 29.14 0.00 0.00 0.00 0.00 22:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:51:01 vethc9b2f45 0.52 0.48 0.10 0.08 0.00 0.00 0.00 0.00 22:51:01 eth0 469.52 410.65 3481.45 103.54 0.00 0.00 0.00 0.00 22:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:51:01 docker0 42.59 49.05 3.23 222.20 0.00 0.00 0.00 0.00 Average: vethc9b2f45 0.10 0.10 0.02 0.02 0.00 0.00 0.00 0.00 Average: eth0 172.68 152.44 1459.26 26.71 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 8.55 9.85 0.65 44.60 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) 09/15/20 _x86_64_ (4 CPU) 22:44:49 LINUX RESTART (4 CPU) 22:46:01 CPU %user %nice %system %iowait %steal %idle 22:47:01 all 0.17 0.00 0.05 0.00 0.00 99.78 22:47:01 0 0.17 0.00 0.03 0.00 0.00 99.80 22:47:01 1 0.08 0.00 0.05 0.00 0.00 99.87 22:47:01 2 0.40 0.00 0.05 0.00 0.00 99.55 22:47:01 3 0.05 0.00 0.05 0.00 0.00 99.90 22:48:01 all 0.19 0.00 0.04 0.00 0.00 99.77 22:48:01 0 0.07 0.00 0.08 0.00 0.00 99.85 22:48:01 1 0.07 0.00 0.05 0.00 0.00 99.88 22:48:01 2 0.58 0.00 0.03 0.00 0.00 99.39 22:48:01 3 0.05 0.00 0.00 0.00 0.00 99.95 22:49:01 all 0.15 0.00 0.03 0.00 0.00 99.82 22:49:01 0 0.03 0.00 0.02 0.00 0.00 99.95 22:49:01 1 0.38 0.00 0.03 0.00 0.00 99.58 22:49:01 2 0.15 0.00 0.03 0.00 0.00 99.82 22:49:01 3 0.03 0.00 0.03 0.00 0.00 99.93 22:50:01 all 6.43 0.00 3.88 0.87 0.02 88.80 22:50:01 0 6.10 0.00 3.54 1.28 0.00 89.08 22:50:01 1 6.89 0.00 3.48 0.61 0.03 88.99 22:50:01 2 6.50 0.00 4.30 0.12 0.00 89.08 22:50:01 3 6.22 0.00 4.20 1.48 0.03 88.06 22:51:01 all 11.99 0.00 8.41 3.78 0.02 75.80 22:51:01 0 10.20 0.00 8.05 5.14 0.02 76.59 22:51:01 1 14.57 0.00 8.14 4.45 0.03 72.81 22:51:01 2 11.90 0.00 8.65 2.49 0.03 76.94 22:51:01 3 11.30 0.00 8.82 3.04 0.00 76.85 Average: all 3.77 0.00 2.47 0.92 0.01 92.84 Average: 0 3.29 0.00 2.33 1.27 0.00 93.11 Average: 1 4.38 0.00 2.34 1.00 0.01 92.27 Average: 2 3.89 0.00 2.60 0.52 0.01 92.99 Average: 3 3.51 0.00 2.60 0.90 0.01 92.99