---> uname -a: Linux 40d6248c4eac 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 7.2G 42.8G 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 7.2G 42.8G 14% /etc/resolv.conf /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hostname /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hosts /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-156 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-156@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 645 123 0 1068 1086 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) 07/22/20 _x86_64_ (4 CPU) 04:51:41 LINUX RESTART 04:52:02 tps rtps wtps bread/s bwrtn/s 04:53:01 120.94 41.42 79.52 7596.48 34698.95 04:54:01 2.32 0.00 2.32 0.00 49.73 04:55:01 0.23 0.00 0.23 0.00 3.33 04:56:01 0.23 0.00 0.23 0.00 2.70 04:57:01 0.23 0.00 0.23 0.00 3.00 04:58:01 0.35 0.00 0.35 0.00 4.81 04:59:01 0.27 0.02 0.25 0.13 2.43 05:00:01 0.28 0.00 0.28 0.00 2.98 05:01:01 0.30 0.02 0.28 0.13 3.00 05:02:01 0.47 0.12 0.35 2.13 6.36 05:03:01 31.32 30.95 0.37 3391.10 6.33 Average: 14.11 6.54 7.57 989.43 3116.24 04:52:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:53:01 164196 1717360 91.27 2620 1153508 1119356 38.20 433212 1123940 116 04:54:01 171212 1710344 90.90 2620 1153540 1087908 37.13 429392 1122064 20 04:55:01 169644 1711912 90.98 2620 1153548 1087908 37.13 431272 1121844 8 04:56:01 168476 1713080 91.05 2620 1153548 1088088 37.13 432236 1121844 8 04:57:01 167148 1714408 91.12 2620 1153556 1088112 37.14 439236 1116076 8 04:58:01 167912 1713644 91.08 2620 1153560 1087992 37.13 438748 1116052 8 04:59:01 168528 1713028 91.04 2620 1153564 1087908 37.13 438288 1116052 8 05:00:01 168652 1712904 91.04 2620 1153572 1087908 37.13 431140 1123332 8 05:01:01 166176 1715380 91.17 2620 1153576 1090880 37.23 432984 1123332 20 05:02:01 167812 1713744 91.08 2620 1153720 1088416 37.15 428492 1126264 16 05:03:01 80528 1801028 95.72 2620 1211400 1123840 38.35 433524 1203924 124 Average: 160026 1721530 91.50 2620 1158827 1094392 37.35 433502 1128611 31 04:52:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 04:53:01 eth0 571.45 333.55 1072.14 96.37 0.00 0.00 0.00 04:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:53:01 docker0 1.83 1.62 0.30 3.54 0.00 0.00 0.00 04:54:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 04:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:55:01 eth0 0.68 0.08 0.06 0.01 0.00 0.00 0.00 04:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:56:01 eth0 1.12 0.52 0.35 0.21 0.00 0.00 0.00 04:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:57:01 eth0 0.53 0.32 0.27 0.20 0.00 0.00 0.00 04:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:58:01 eth0 0.32 0.27 0.14 0.08 0.00 0.00 0.00 04:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:59:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 04:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:00:01 eth0 0.60 0.08 0.06 0.01 0.00 0.00 0.00 05:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:01:01 eth0 0.52 0.48 0.27 0.21 0.00 0.00 0.00 05:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:02:01 eth0 0.07 0.07 0.01 0.01 0.00 0.00 0.00 05:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:03:01 eth0 7.85 4.58 7.78 2.57 0.00 0.00 0.00 05:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 52.27 30.48 96.86 8.93 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.16 0.15 0.03 0.32 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) 07/22/20 _x86_64_ (4 CPU) 04:51:41 LINUX RESTART 04:52:02 CPU %user %nice %system %iowait %steal %idle 04:53:01 all 12.32 0.00 5.13 8.10 0.02 74.43 04:53:01 0 11.36 0.00 5.56 8.89 0.00 74.19 04:53:01 1 14.25 0.00 4.61 9.36 0.00 71.77 04:53:01 2 12.38 0.00 4.91 7.47 0.02 75.23 04:53:01 3 11.26 0.00 5.43 6.71 0.02 76.58 04:54:01 all 0.16 0.00 0.03 0.00 0.00 99.81 04:54:01 0 0.05 0.00 0.03 0.00 0.00 99.92 04:54:01 1 0.33 0.00 0.03 0.00 0.00 99.63 04:54:01 2 0.23 0.00 0.03 0.00 0.00 99.73 04:54:01 3 0.03 0.00 0.02 0.00 0.00 99.95 04:55:01 all 0.14 0.00 0.02 0.00 0.00 99.84 04:55:01 0 0.02 0.00 0.03 0.00 0.00 99.95 04:55:01 1 0.03 0.00 0.02 0.00 0.00 99.95 04:55:01 2 0.50 0.00 0.02 0.00 0.00 99.48 04:55:01 3 0.02 0.00 0.00 0.00 0.00 99.98 04:56:01 all 0.15 0.00 0.02 0.00 0.00 99.83 04:56:01 0 0.05 0.00 0.02 0.00 0.00 99.93 04:56:01 1 0.03 0.00 0.02 0.00 0.00 99.95 04:56:01 2 0.52 0.00 0.03 0.00 0.00 99.45 04:56:01 3 0.02 0.00 0.02 0.00 0.00 99.97 04:57:01 all 0.15 0.00 0.02 0.00 0.00 99.83 04:57:01 0 0.03 0.00 0.03 0.00 0.00 99.93 04:57:01 1 0.02 0.00 0.03 0.00 0.00 99.95 04:57:01 2 0.53 0.00 0.02 0.00 0.00 99.45 04:57:01 3 0.00 0.00 0.02 0.00 0.00 99.98 04:58:01 all 0.15 0.00 0.03 0.00 0.00 99.82 04:58:01 0 0.05 0.00 0.03 0.00 0.00 99.92 04:58:01 1 0.02 0.00 0.07 0.00 0.00 99.92 04:58:01 2 0.52 0.00 0.02 0.00 0.00 99.47 04:58:01 3 0.03 0.00 0.02 0.00 0.00 99.95 04:59:01 all 0.15 0.00 0.02 0.00 0.00 99.82 04:59:01 0 0.02 0.00 0.05 0.00 0.00 99.93 04:59:01 1 0.03 0.00 0.02 0.00 0.00 99.95 04:59:01 2 0.53 0.00 0.02 0.00 0.00 99.45 04:59:01 3 0.03 0.00 0.02 0.00 0.02 99.93 05:00:01 all 0.15 0.00 0.02 0.00 0.00 99.83 05:00:01 0 0.03 0.00 0.03 0.00 0.02 99.92 05:00:01 1 0.02 0.00 0.02 0.00 0.00 99.97 05:00:01 2 0.53 0.00 0.00 0.00 0.00 99.47 05:00:01 3 0.02 0.00 0.02 0.00 0.00 99.97 05:01:01 all 0.17 0.00 0.03 0.00 0.00 99.80 05:01:01 0 0.07 0.00 0.03 0.00 0.00 99.90 05:01:01 1 0.05 0.00 0.03 0.00 0.02 99.90 05:01:01 2 0.53 0.00 0.03 0.00 0.00 99.43 05:01:01 3 0.03 0.00 0.02 0.00 0.00 99.95 05:02:01 all 0.16 0.00 0.03 0.00 0.00 99.81 05:02:01 0 0.05 0.00 0.05 0.00 0.00 99.90 05:02:01 1 0.03 0.00 0.02 0.00 0.00 99.95 05:02:01 2 0.53 0.00 0.03 0.00 0.00 99.43 05:02:01 3 0.02 0.00 0.03 0.00 0.00 99.95 05:03:01 all 0.65 0.00 0.23 0.70 0.00 98.42 05:03:01 0 0.80 0.00 0.52 2.62 0.00 96.06 05:03:01 1 0.63 0.00 0.10 0.07 0.00 99.20 05:03:01 2 0.88 0.00 0.17 0.10 0.02 98.83 05:03:01 3 0.27 0.00 0.10 0.03 0.00 99.60 Average: all 1.28 0.00 0.50 0.79 0.00 97.43 Average: 0 1.12 0.00 0.57 1.03 0.00 97.28 Average: 1 1.38 0.00 0.44 0.84 0.00 97.33 Average: 2 1.59 0.00 0.47 0.67 0.00 97.27 Average: 3 1.04 0.00 0.51 0.60 0.00 97.85