---> uname -a: Linux 7b3a222de87b 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 7.0G 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 7.0G 43.0G 14% /etc/resolv.conf /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hostname /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hosts /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/xfoundry_device-rest-go_issue-36 /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/xfoundry_device-rest-go_issue-36@tmp /dev/vda1 50.0G 7.0G 43.0G 14% /var/log/sa-host ---> free -m: total used free shared buff/cache available Mem: 1837 669 140 0 1027 1061 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) 09/18/20 _x86_64_ (4 CPU) 15:23:20 LINUX RESTART (4 CPU) 15:24:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 15:25:01 57.09 15.13 41.96 0.00 4986.02 5435.64 0.00 15:26:02 1.80 0.00 1.80 0.00 0.00 34.05 0.00 15:27:01 0.19 0.00 0.19 0.00 0.00 1.68 0.00 15:28:01 0.30 0.00 0.30 0.00 0.00 3.61 0.00 15:29:01 0.22 0.00 0.22 0.00 0.00 2.65 0.00 Average: 11.96 3.04 8.93 0.00 1000.97 1099.65 0.00 15:24:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:25:01 154876 0 588804 31.29 2620 1135256 1120568 38.24 451708 1115748 120 15:26:02 158828 0 584848 31.08 2620 1135260 1093168 37.31 450872 1112920 8 15:27:01 159488 0 584180 31.05 2620 1135268 1082056 36.93 451236 1112204 20 15:28:01 158816 0 584852 31.08 2620 1135268 1081924 36.92 452116 1111712 16 15:29:01 158420 0 585240 31.10 2620 1135276 1081996 36.93 467820 1096520 8 Average: 158086 0 585585 31.12 2620 1135266 1091942 37.27 454750 1109821 34 15:24:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 15:25:01 eth0 373.77 306.34 1005.69 220.33 0.00 0.00 0.00 0.00 15:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:25:01 docker0 47.02 33.82 4.15 132.26 0.00 0.00 0.00 0.00 15:26:02 eth0 1.15 0.23 0.32 0.19 0.00 0.00 0.00 0.00 15:26:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:26:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:27:01 eth0 0.59 0.39 0.28 0.21 0.00 0.00 0.00 0.00 15:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:28:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 0.00 15:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:29:01 eth0 0.18 0.15 0.08 0.04 0.00 0.00 0.00 0.00 15:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 75.44 61.67 202.04 44.32 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 9.44 6.79 0.83 26.55 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) 09/18/20 _x86_64_ (4 CPU) 15:23:20 LINUX RESTART (4 CPU) 15:24:01 CPU %user %nice %system %iowait %steal %idle 15:25:01 all 7.83 0.00 3.04 1.90 0.02 87.21 15:25:01 0 7.77 0.00 3.23 1.90 0.02 87.08 15:25:01 1 7.54 0.00 2.46 0.44 0.02 89.54 15:25:01 2 7.34 0.00 3.05 0.70 0.02 88.89 15:25:01 3 8.67 0.00 3.42 4.56 0.03 83.31 15:26:02 all 0.17 0.00 0.05 0.00 0.00 99.78 15:26:02 0 0.53 0.00 0.05 0.00 0.00 99.42 15:26:02 1 0.03 0.00 0.05 0.00 0.00 99.92 15:26:02 2 0.08 0.00 0.07 0.00 0.00 99.85 15:26:02 3 0.03 0.00 0.03 0.00 0.00 99.93 15:27:01 all 0.14 0.00 0.03 0.00 0.00 99.83 15:27:01 0 0.44 0.00 0.02 0.00 0.00 99.54 15:27:01 1 0.03 0.00 0.02 0.00 0.00 99.95 15:27:01 2 0.07 0.00 0.05 0.00 0.00 99.88 15:27:01 3 0.03 0.00 0.03 0.00 0.00 99.93 15:28:01 all 0.13 0.00 0.03 0.00 0.00 99.84 15:28:01 0 0.43 0.00 0.05 0.00 0.00 99.52 15:28:01 1 0.03 0.00 0.02 0.00 0.00 99.95 15:28:01 2 0.03 0.00 0.03 0.00 0.00 99.93 15:28:01 3 0.02 0.00 0.03 0.00 0.00 99.95 15:29:01 all 0.14 0.00 0.06 0.00 0.00 99.80 15:29:01 0 0.02 0.00 0.02 0.00 0.00 99.97 15:29:01 1 0.03 0.00 0.03 0.00 0.00 99.93 15:29:01 2 0.05 0.00 0.15 0.00 0.00 99.80 15:29:01 3 0.47 0.00 0.05 0.00 0.00 99.48 Average: all 1.68 0.00 0.64 0.38 0.00 97.29 Average: 0 1.83 0.00 0.67 0.38 0.00 97.12 Average: 1 1.53 0.00 0.52 0.09 0.00 97.86 Average: 2 1.51 0.00 0.67 0.14 0.00 97.67 Average: 3 1.84 0.00 0.71 0.91 0.01 96.53