---> uname -a: Linux c1fb1991014b 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 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% /var/log/sa-host /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/exfoundry_go-mod-messaging_PR-59 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/exfoundry_go-mod-messaging_PR-59@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 647 141 0 1048 1082 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) 09/11/20 _x86_64_ (4 CPU) 21:15:27 LINUX RESTART (4 CPU) 21:16:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 21:17:01 76.90 30.15 46.75 0.00 7296.01 4964.66 0.00 21:18:01 1.72 0.00 1.72 0.00 0.00 33.39 0.00 21:19:01 0.23 0.00 0.23 0.00 0.00 2.85 0.00 21:20:01 0.23 0.00 0.23 0.00 0.00 2.16 0.00 21:21:01 0.30 0.00 0.30 0.00 0.00 4.58 0.00 21:22:01 0.35 0.00 0.35 0.00 0.00 4.23 0.00 Average: 13.12 4.96 8.16 0.00 1199.65 824.21 0.00 21:16:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 21:17:01 176696 0 566612 30.11 2620 1135628 1116096 38.09 436452 1108836 120 21:18:01 181828 0 561448 29.84 2620 1135660 1081284 36.90 434744 1106316 20 21:19:01 181952 0 561320 29.83 2620 1135664 1081284 36.90 434780 1106304 8 21:20:01 179496 0 563772 29.96 2620 1135668 1081476 36.91 437396 1105816 16 21:21:01 180636 0 562624 29.90 2620 1135676 1081404 36.91 442128 1100724 8 21:22:01 177968 0 565284 30.04 2620 1135684 1081368 36.91 444592 1100712 16 Average: 179763 0 563510 29.95 2620 1135663 1087152 37.10 438349 1104785 31 21:16:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 21:17:01 eth0 569.21 345.33 1071.09 94.61 0.00 0.00 0.00 0.00 21:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:17:01 docker0 1.34 1.13 0.27 2.46 0.00 0.00 0.00 0.00 21:18:01 eth0 0.07 0.08 0.01 0.01 0.00 0.00 0.00 0.00 21:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:19:01 eth0 0.65 0.07 0.05 0.01 0.00 0.00 0.00 0.00 21:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:20:01 eth0 1.10 0.43 0.34 0.18 0.00 0.00 0.00 0.00 21:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:21:01 eth0 0.52 0.30 0.27 0.23 0.00 0.00 0.00 0.00 21:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:22:01 eth0 0.75 0.47 0.41 0.27 0.00 0.00 0.00 0.00 21:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 94.11 57.01 176.29 15.67 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 0.22 0.19 0.05 0.40 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) 09/11/20 _x86_64_ (4 CPU) 21:15:27 LINUX RESTART (4 CPU) 21:16:02 CPU %user %nice %system %iowait %steal %idle 21:17:01 all 11.79 0.00 4.39 2.06 0.02 81.74 21:17:01 0 11.43 0.00 5.22 0.74 0.02 82.59 21:17:01 1 12.04 0.00 4.10 0.68 0.02 83.16 21:17:01 2 11.20 0.00 4.25 4.63 0.03 79.89 21:17:01 3 12.50 0.00 3.97 2.17 0.02 81.34 21:18:01 all 0.15 0.00 0.05 0.00 0.00 99.80 21:18:01 0 0.00 0.00 0.07 0.00 0.00 99.93 21:18:01 1 0.03 0.00 0.03 0.00 0.00 99.93 21:18:01 2 0.02 0.00 0.03 0.00 0.00 99.95 21:18:01 3 0.55 0.00 0.07 0.00 0.02 99.37 21:19:01 all 0.15 0.00 0.03 0.00 0.00 99.82 21:19:01 0 0.03 0.00 0.02 0.00 0.00 99.95 21:19:01 1 0.05 0.00 0.02 0.00 0.02 99.92 21:19:01 2 0.03 0.00 0.03 0.00 0.00 99.93 21:19:01 3 0.47 0.00 0.05 0.00 0.00 99.48 21:20:01 all 0.11 0.00 0.04 0.00 0.00 99.85 21:20:01 0 0.05 0.00 0.03 0.00 0.02 99.90 21:20:01 1 0.08 0.00 0.05 0.00 0.00 99.87 21:20:01 2 0.02 0.00 0.02 0.00 0.00 99.97 21:20:01 3 0.28 0.00 0.07 0.00 0.00 99.65 21:21:01 all 0.19 0.00 0.04 0.00 0.00 99.78 21:21:01 0 0.03 0.00 0.02 0.00 0.00 99.95 21:21:01 1 0.10 0.00 0.03 0.00 0.00 99.87 21:21:01 2 0.03 0.00 0.00 0.00 0.00 99.97 21:21:01 3 0.58 0.00 0.10 0.00 0.00 99.32 21:22:01 all 0.06 0.00 0.07 0.00 0.00 99.86 21:22:01 0 0.02 0.00 0.03 0.00 0.00 99.95 21:22:01 1 0.10 0.00 0.07 0.00 0.02 99.82 21:22:01 2 0.02 0.00 0.03 0.00 0.00 99.95 21:22:01 3 0.12 0.00 0.15 0.00 0.00 99.73 Average: all 2.03 0.00 0.75 0.34 0.01 96.87 Average: 0 1.89 0.00 0.88 0.12 0.01 97.11 Average: 1 2.03 0.00 0.70 0.11 0.01 97.15 Average: 2 1.85 0.00 0.71 0.76 0.01 96.68 Average: 3 2.37 0.00 0.72 0.35 0.01 96.55