---> uname -a: Linux b65b25f39b70 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 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% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/gexfoundry_device-mqtt-go_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/gexfoundry_device-mqtt-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 771 106 0 958 997 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 24: eth0@if25: 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) 06/18/20 _x86_64_ (4 CPU) 09:48:05 LINUX RESTART 09:49:01 tps rtps wtps bread/s bwrtn/s 09:50:01 6.09 1.15 4.95 29.44 142.15 09:51:01 0.62 0.00 0.62 0.00 13.87 09:52:01 0.30 0.00 0.30 0.00 3.93 09:53:01 0.23 0.00 0.23 0.00 2.83 09:54:02 0.15 0.00 0.15 0.00 2.21 09:55:01 0.80 0.02 0.78 0.14 9.60 09:56:01 0.37 0.00 0.37 0.00 4.50 09:57:01 0.35 0.00 0.35 0.00 5.38 09:58:01 6.58 0.97 5.61 300.23 3865.75 09:59:01 310.14 164.52 145.63 7496.86 46409.28 10:00:01 270.15 129.31 140.84 9097.59 34408.85 Average: 54.33 26.99 27.34 1543.24 7740.14 09:49:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:50:01 179792 1701764 90.44 2620 1128220 1099996 37.54 441948 1100320 20 09:51:01 180184 1701372 90.42 2620 1128224 1080652 36.88 443492 1099244 20 09:52:01 179336 1702220 90.47 2620 1128232 1080748 36.88 444016 1099244 8 09:53:01 178056 1703500 90.54 2620 1128232 1073504 36.64 447952 1096572 16 09:54:02 177920 1703636 90.54 2620 1128240 1073564 36.64 452940 1091856 16 09:55:01 178536 1703020 90.51 2620 1128248 1073476 36.64 452428 1091852 8 09:56:01 178636 1702920 90.51 2620 1128252 1073476 36.64 450020 1094388 8 09:57:01 178888 1702668 90.49 2620 1128260 1073476 36.64 449780 1094388 8 09:58:01 85700 1795856 95.45 2620 1173912 1272920 43.44 496512 1126448 82712 09:59:01 68856 1812700 96.34 2596 1075544 1499220 51.17 660916 925784 47108 10:00:01 108416 1773140 94.24 1492 980424 1260644 43.02 666656 799668 392 Average: 154029 1727527 91.81 2515 1114163 1151061 39.28 491515 1056342 11847 09:49:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 09:50:01 eth0 14.90 9.51 14.65 6.94 0.00 0.00 0.00 09:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:50:01 docker0 1.37 1.22 0.10 3.36 0.00 0.00 0.00 09:51:01 eth0 2.23 1.10 1.25 0.43 0.00 0.00 0.00 09:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:52:01 eth0 1.07 0.27 0.32 0.20 0.00 0.00 0.00 09:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:53:01 eth0 1.15 0.38 0.47 0.20 0.00 0.00 0.00 09:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:54:02 eth0 0.67 0.48 0.40 0.27 0.00 0.00 0.00 09:54:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:54:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:55:01 eth0 0.07 0.07 0.01 0.01 0.00 0.00 0.00 09:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:56:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 09:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:57:01 eth0 0.07 0.07 0.01 0.01 0.00 0.00 0.00 09:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:58:01 eth0 120.73 76.31 3330.59 7.67 0.00 0.00 0.00 09:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:59:01 eth0 260.34 187.60 3908.71 86.85 0.00 0.00 0.00 09:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:59:01 docker0 24.21 23.61 2.94 80.32 0.00 0.00 0.00 10:00:01 eth0 214.89 150.86 2552.55 81.09 0.00 0.00 0.00 10:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:00:01 vethe31ee9d 0.22 0.27 0.44 0.10 0.00 0.00 0.00 10:00:01 docker0 52.07 57.98 5.34 241.77 0.00 0.00 0.00 Average: eth0 56.17 38.90 894.11 16.75 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: vethe31ee9d 0.02 0.02 0.04 0.01 0.00 0.00 0.00 Average: docker0 4.68 5.22 0.46 22.01 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) 06/18/20 _x86_64_ (4 CPU) 09:48:05 LINUX RESTART 09:49:01 CPU %user %nice %system %iowait %steal %idle 09:50:01 all 0.81 0.00 0.26 0.02 0.00 98.91 09:50:01 0 1.05 0.00 0.28 0.02 0.00 98.65 09:50:01 1 0.93 0.00 0.20 0.00 0.00 98.87 09:50:01 2 0.62 0.00 0.25 0.03 0.00 99.10 09:50:01 3 0.67 0.00 0.37 0.07 0.00 98.90 09:51:01 all 0.20 0.00 0.05 0.00 0.00 99.75 09:51:01 0 0.03 0.00 0.02 0.00 0.00 99.95 09:51:01 1 0.17 0.00 0.03 0.00 0.00 99.80 09:51:01 2 0.53 0.00 0.07 0.00 0.00 99.40 09:51:01 3 0.07 0.00 0.05 0.00 0.00 99.88 09:52:01 all 0.15 0.00 0.03 0.00 0.00 99.82 09:52:01 0 0.03 0.00 0.07 0.00 0.00 99.90 09:52:01 1 0.03 0.00 0.03 0.00 0.00 99.93 09:52:01 2 0.48 0.00 0.02 0.00 0.00 99.50 09:52:01 3 0.05 0.00 0.03 0.00 0.00 99.92 09:53:01 all 0.11 0.00 0.04 0.00 0.00 99.85 09:53:01 0 0.05 0.00 0.05 0.00 0.02 99.88 09:53:01 1 0.02 0.00 0.03 0.00 0.00 99.95 09:53:01 2 0.33 0.00 0.03 0.00 0.00 99.63 09:53:01 3 0.03 0.00 0.05 0.00 0.00 99.92 09:54:02 all 0.17 0.00 0.04 0.00 0.00 99.79 09:54:02 0 0.05 0.00 0.05 0.00 0.00 99.90 09:54:02 1 0.03 0.00 0.05 0.00 0.00 99.92 09:54:02 2 0.53 0.00 0.03 0.00 0.00 99.43 09:54:02 3 0.05 0.00 0.02 0.00 0.00 99.93 09:55:01 all 0.13 0.00 0.05 0.00 0.00 99.82 09:55:01 0 0.03 0.00 0.05 0.00 0.00 99.92 09:55:01 1 0.02 0.00 0.03 0.00 0.00 99.95 09:55:01 2 0.46 0.00 0.07 0.00 0.02 99.46 09:55:01 3 0.02 0.00 0.02 0.00 0.00 99.97 09:56:01 all 0.07 0.00 0.04 0.00 0.00 99.88 09:56:01 0 0.02 0.00 0.03 0.00 0.00 99.95 09:56:01 1 0.03 0.00 0.03 0.00 0.00 99.93 09:56:01 2 0.18 0.00 0.07 0.00 0.00 99.75 09:56:01 3 0.03 0.00 0.03 0.00 0.00 99.93 09:57:01 all 0.15 0.00 0.03 0.00 0.00 99.82 09:57:01 0 0.02 0.00 0.03 0.00 0.00 99.95 09:57:01 1 0.03 0.00 0.05 0.00 0.00 99.92 09:57:01 2 0.53 0.00 0.03 0.00 0.00 99.43 09:57:01 3 0.02 0.00 0.02 0.00 0.00 99.97 09:58:01 all 1.29 0.00 0.76 0.02 0.01 97.93 09:58:01 0 1.47 0.00 0.97 0.00 0.00 97.56 09:58:01 1 1.12 0.00 0.78 0.03 0.02 98.05 09:58:01 2 1.07 0.00 0.58 0.02 0.00 98.33 09:58:01 3 1.50 0.00 0.68 0.00 0.02 97.80 09:59:01 all 13.25 0.00 8.14 3.65 0.13 74.83 09:59:01 0 12.85 0.00 7.88 3.27 0.12 75.88 09:59:01 1 13.17 0.00 8.30 2.73 0.15 75.65 09:59:01 2 12.81 0.00 8.47 3.61 0.14 74.97 09:59:01 3 14.18 0.00 7.89 5.00 0.12 72.81 10:00:01 all 11.45 0.00 7.57 4.38 0.21 76.40 10:00:01 0 10.02 0.00 7.54 2.46 0.24 79.74 10:00:01 1 11.47 0.00 7.48 6.31 0.19 74.55 10:00:01 2 10.90 0.00 7.87 5.74 0.25 75.24 10:00:01 3 13.40 0.00 7.39 3.02 0.17 76.03 Average: all 2.50 0.00 1.53 0.72 0.03 95.22 Average: 0 2.31 0.00 1.53 0.52 0.03 95.62 Average: 1 2.43 0.00 1.53 0.82 0.03 95.19 Average: 2 2.56 0.00 1.57 0.85 0.04 94.98 Average: 3 2.69 0.00 1.48 0.72 0.03 95.07