---> uname -a: Linux 203d5314deb8 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 8.5G 41.5G 17% / 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 8.5G 41.5G 17% /etc/resolv.conf /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hostname /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hosts /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_go-mod-messaging_master@tmp /dev/vda1 50.0G 8.5G 41.5G 17% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_go-mod-messaging_master ---> free -m: total used free shared buff/cache available Mem: 1837 788 111 0 937 981 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) 06/17/20 _x86_64_ (4 CPU) 15:13:24 LINUX RESTART 15:14:02 tps rtps wtps bread/s bwrtn/s 15:15:02 50.24 14.14 36.10 4801.49 2588.84 15:16:01 0.36 0.00 0.36 0.00 5.84 15:17:01 0.32 0.00 0.32 0.00 3.80 15:18:01 0.22 0.00 0.22 0.00 2.97 15:19:01 0.18 0.00 0.18 0.00 1.97 15:20:01 349.18 179.37 169.81 8258.33 57766.36 Average: 67.04 32.42 34.62 2176.84 10120.01 15:14:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:15:02 179228 1702328 90.47 2620 1113628 1108504 37.83 425104 1118008 20 15:16:01 182696 1698860 90.29 2620 1113632 1091528 37.25 425636 1115164 8 15:17:01 184392 1697164 90.20 2620 1113640 1078140 36.79 424996 1114284 8 15:18:01 182072 1699484 90.32 2620 1113640 1078212 36.80 427464 1114212 8 15:19:01 178684 1702872 90.50 2620 1113648 1073120 36.62 436864 1108596 16 15:20:01 142068 1739488 92.45 1752 986672 1288168 43.96 560280 903276 49400 Average: 174857 1706699 90.71 2475 1092477 1119612 38.21 450057 1078923 8243 15:14:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:15:02 eth0 312.58 212.21 680.94 69.07 0.00 0.00 0.00 15:15:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:15:02 docker0 1.42 1.30 0.27 2.43 0.00 0.00 0.00 15:16:01 eth0 2.46 0.81 0.92 0.60 0.00 0.00 0.00 15:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:17:01 eth0 0.57 0.17 0.11 0.04 0.00 0.00 0.00 15:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:18:01 eth0 1.18 0.33 0.33 0.20 0.00 0.00 0.00 15:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:19:01 eth0 0.73 0.42 0.41 0.27 0.00 0.00 0.00 15:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:19:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:20:01 eth0 273.42 209.07 7004.58 31.43 0.00 0.00 0.00 15:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:20:01 docker0 11.21 10.48 1.10 41.96 0.00 0.00 0.00 Average: eth0 98.21 70.34 1287.62 16.84 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.12 1.97 0.23 7.44 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) 06/17/20 _x86_64_ (4 CPU) 15:13:24 LINUX RESTART 15:14:02 CPU %user %nice %system %iowait %steal %idle 15:15:02 all 5.77 0.00 1.94 1.50 0.00 90.78 15:15:02 0 6.60 0.00 2.38 1.68 0.02 89.33 15:15:02 1 6.37 0.00 1.88 2.78 0.02 88.95 15:15:02 2 5.05 0.00 1.73 0.71 0.02 92.49 15:15:02 3 5.07 0.00 1.77 0.83 0.02 92.31 15:16:01 all 0.18 0.00 0.03 0.00 0.00 99.79 15:16:01 0 0.53 0.00 0.02 0.00 0.00 99.46 15:16:01 1 0.07 0.00 0.03 0.00 0.00 99.90 15:16:01 2 0.08 0.00 0.05 0.00 0.00 99.86 15:16:01 3 0.03 0.00 0.02 0.00 0.00 99.95 15:17:01 all 0.13 0.00 0.03 0.00 0.00 99.85 15:17:01 0 0.38 0.00 0.02 0.00 0.00 99.60 15:17:01 1 0.07 0.00 0.03 0.00 0.00 99.90 15:17:01 2 0.05 0.00 0.03 0.00 0.00 99.92 15:17:01 3 0.03 0.00 0.02 0.00 0.00 99.95 15:18:01 all 0.16 0.00 0.03 0.00 0.00 99.81 15:18:01 0 0.57 0.00 0.02 0.00 0.00 99.42 15:18:01 1 0.02 0.00 0.03 0.00 0.00 99.95 15:18:01 2 0.05 0.00 0.02 0.00 0.00 99.93 15:18:01 3 0.02 0.00 0.02 0.00 0.00 99.97 15:19:01 all 0.17 0.00 0.04 0.00 0.00 99.79 15:19:01 0 0.50 0.00 0.02 0.00 0.00 99.48 15:19:01 1 0.05 0.00 0.07 0.00 0.00 99.88 15:19:01 2 0.07 0.00 0.07 0.00 0.00 99.87 15:19:01 3 0.03 0.00 0.03 0.00 0.00 99.93 15:20:01 all 14.02 0.00 7.56 3.18 0.02 75.21 15:20:01 0 13.25 0.00 8.70 2.33 0.02 75.70 15:20:01 1 14.40 0.00 6.59 4.09 0.02 74.91 15:20:01 2 14.42 0.00 7.67 4.86 0.03 73.02 15:20:01 3 14.01 0.00 7.29 1.42 0.02 77.26 Average: all 3.38 0.00 1.59 0.77 0.00 94.25 Average: 0 3.61 0.00 1.85 0.66 0.01 93.87 Average: 1 3.47 0.00 1.43 1.14 0.01 93.96 Average: 2 3.27 0.00 1.59 0.92 0.01 94.21 Average: 3 3.17 0.00 1.51 0.37 0.01 94.93