---> uname -a: Linux c356264a5ec6 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: 2933.436 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 6.9G 43.1G 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 43.1G 14% /etc/resolv.conf /dev/vda1 50.0G 6.9G 43.1G 14% /etc/hostname /dev/vda1 50.0G 6.9G 43.1G 14% /etc/hosts /dev/vda1 50.0G 6.9G 43.1G 14% /var/log/sa /dev/vda1 50.0G 6.9G 43.1G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-152 /dev/vda1 50.0G 6.9G 43.1G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-152@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 638 126 0 1071 1093 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) 06/11/20 _x86_64_ (4 CPU) 22:54:56 LINUX RESTART 22:56:01 tps rtps wtps bread/s bwrtn/s 22:57:01 0.58 0.00 0.58 0.00 11.92 22:58:01 39.91 11.23 28.68 4497.22 2354.60 22:59:01 5.04 0.45 4.60 25.97 136.36 23:00:01 0.24 0.00 0.24 0.00 3.69 23:01:01 0.47 0.02 0.45 0.13 7.26 23:02:01 0.48 0.12 0.37 2.13 6.26 23:03:01 0.27 0.00 0.27 0.00 3.28 23:04:01 0.18 0.02 0.17 0.13 1.65 23:05:01 0.20 0.00 0.20 0.00 1.93 23:06:01 0.28 0.00 0.28 0.00 3.51 23:07:01 0.25 0.00 0.25 0.00 3.60 23:08:01 0.20 0.00 0.20 0.00 2.07 23:09:01 0.20 0.00 0.20 0.00 1.93 23:10:01 0.40 0.20 0.20 6.26 1.65 Average: 3.49 0.86 2.62 324.41 181.79 22:56:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 22:57:01 114824 1766732 93.90 2620 1321036 987436 33.70 289744 1322276 20 22:58:01 114088 1767468 93.94 2620 1159572 1560992 53.27 462688 1143088 640 22:59:01 164464 1717092 91.26 2620 1160032 1102924 37.64 418464 1138880 20 23:00:01 168960 1712596 91.02 2620 1160032 1080512 36.88 420108 1133404 8 23:01:01 168172 1713384 91.06 2620 1160036 1083352 36.97 421228 1133404 8 23:02:01 168520 1713036 91.04 2620 1160180 1081056 36.89 420600 1133480 16 23:03:01 167808 1713748 91.08 2620 1160184 1081176 36.90 421160 1133480 8 23:04:01 168980 1712576 91.02 2620 1160192 1081148 36.90 420340 1133480 12 23:05:01 167584 1713972 91.09 2620 1160200 1081340 36.90 421376 1133480 8 23:06:01 168884 1712672 91.02 2620 1160204 1081220 36.90 408784 1145416 20 23:07:01 168948 1712608 91.02 2620 1160212 1081184 36.90 408604 1145420 16 23:08:01 169368 1712188 91.00 2620 1160216 1081148 36.90 408320 1145512 8 23:09:01 169196 1712360 91.01 2620 1160256 1081148 36.90 408352 1145520 24 23:10:01 168280 1713276 91.06 2620 1160252 1081256 36.90 409020 1145364 24 Average: 160577 1720979 91.47 2620 1171615 1110421 37.90 409913 1152300 59 22:56:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 22:57:01 eth0 0.93 0.70 0.64 0.25 0.00 0.00 0.00 22:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:58:01 eth0 220.15 144.42 662.42 56.87 0.00 0.00 0.00 22:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:58:01 veth96eaa20 1.70 1.60 0.35 3.46 0.00 0.00 0.00 22:58:01 docker0 1.70 1.50 0.32 3.45 0.00 0.00 0.00 22:59:01 eth0 11.17 8.08 10.23 13.49 0.00 0.00 0.00 22:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:00:01 eth0 0.17 0.08 0.01 0.01 0.00 0.00 0.00 23:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:01:01 eth0 0.22 0.17 0.08 0.07 0.00 0.00 0.00 23:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 eth0 0.63 0.13 0.12 0.01 0.00 0.00 0.00 23:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 eth0 0.42 0.30 0.26 0.17 0.00 0.00 0.00 23:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 eth0 0.50 0.08 0.05 0.04 0.00 0.00 0.00 23:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:05:01 eth0 0.48 0.45 0.27 0.21 0.00 0.00 0.00 23:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:06:01 eth0 0.20 0.17 0.08 0.04 0.00 0.00 0.00 23:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:07:01 eth0 0.17 0.12 0.07 0.04 0.00 0.00 0.00 23:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:08:01 eth0 0.15 0.10 0.01 0.01 0.00 0.00 0.00 23:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:09:01 eth0 0.13 0.10 0.01 0.01 0.00 0.00 0.00 23:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:10:01 eth0 0.53 0.32 0.27 0.20 0.00 0.00 0.00 23:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 16.88 11.11 48.29 5.11 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.12 0.11 0.02 0.25 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) 06/11/20 _x86_64_ (4 CPU) 22:54:56 LINUX RESTART 22:56:01 CPU %user %nice %system %iowait %steal %idle 22:57:01 all 0.12 0.00 0.04 0.00 0.03 99.80 22:57:01 0 0.08 0.00 0.02 0.00 0.02 99.88 22:57:01 1 0.05 0.00 0.05 0.00 0.02 99.88 22:57:01 2 0.07 0.00 0.10 0.00 0.05 99.78 22:57:01 3 0.32 0.00 0.03 0.00 0.03 99.62 22:58:01 all 5.48 0.00 2.01 1.40 0.83 90.28 22:58:01 0 5.49 0.00 2.25 0.32 0.72 91.23 22:58:01 1 5.81 0.00 2.24 0.32 0.90 90.74 22:58:01 2 5.28 0.00 1.82 0.02 0.75 92.13 22:58:01 3 5.35 0.00 1.74 4.91 0.95 87.05 22:59:01 all 0.83 0.00 0.15 0.02 0.04 98.96 22:59:01 0 0.40 0.00 0.15 0.03 0.03 99.38 22:59:01 1 1.40 0.00 0.18 0.00 0.05 98.37 22:59:01 2 0.73 0.00 0.10 0.05 0.02 99.10 22:59:01 3 0.78 0.00 0.18 0.00 0.05 98.98 23:00:01 all 0.10 0.00 0.03 0.00 0.01 99.85 23:00:01 0 0.00 0.00 0.02 0.00 0.02 99.97 23:00:01 1 0.03 0.00 0.03 0.00 0.00 99.93 23:00:01 2 0.34 0.00 0.07 0.00 0.03 99.56 23:00:01 3 0.03 0.00 0.02 0.00 0.00 99.95 23:01:01 all 0.16 0.00 0.03 0.00 0.02 99.78 23:01:01 0 0.03 0.00 0.03 0.00 0.00 99.93 23:01:01 1 0.03 0.00 0.02 0.00 0.02 99.93 23:01:01 2 0.53 0.00 0.05 0.00 0.03 99.38 23:01:01 3 0.03 0.00 0.03 0.00 0.02 99.92 23:02:01 all 0.13 0.00 0.02 0.00 0.07 99.77 23:02:01 0 0.02 0.00 0.03 0.00 0.08 99.87 23:02:01 1 0.05 0.00 0.02 0.02 0.03 99.88 23:02:01 2 0.43 0.00 0.03 0.00 0.17 99.37 23:02:01 3 0.03 0.00 0.02 0.02 0.03 99.90 23:03:01 all 0.14 0.00 0.02 0.00 0.09 99.75 23:03:01 0 0.02 0.00 0.00 0.00 0.03 99.95 23:03:01 1 0.38 0.00 0.03 0.00 0.08 99.50 23:03:01 2 0.10 0.00 0.03 0.00 0.10 99.77 23:03:01 3 0.03 0.00 0.03 0.00 0.13 99.80 23:04:01 all 0.12 0.00 0.02 0.00 0.09 99.76 23:04:01 0 0.02 0.00 0.03 0.00 0.03 99.92 23:04:01 1 0.47 0.00 0.02 0.00 0.08 99.43 23:04:01 2 0.02 0.00 0.02 0.00 0.10 99.87 23:04:01 3 0.02 0.00 0.05 0.00 0.12 99.82 23:05:01 all 0.12 0.00 0.04 0.00 0.16 99.68 23:05:01 0 0.02 0.00 0.02 0.00 0.08 99.88 23:05:01 1 0.35 0.00 0.03 0.00 0.08 99.53 23:05:01 2 0.08 0.00 0.07 0.00 0.30 99.55 23:05:01 3 0.03 0.00 0.02 0.00 0.18 99.77 23:06:01 all 0.14 0.00 0.03 0.00 0.04 99.79 23:06:01 0 0.02 0.00 0.03 0.00 0.07 99.88 23:06:01 1 0.48 0.00 0.02 0.00 0.02 99.48 23:06:01 2 0.02 0.00 0.03 0.00 0.02 99.93 23:06:01 3 0.03 0.00 0.03 0.00 0.07 99.87 23:07:01 all 0.15 0.00 0.02 0.00 0.05 99.78 23:07:01 0 0.02 0.00 0.02 0.00 0.02 99.95 23:07:01 1 0.05 0.00 0.02 0.00 0.02 99.92 23:07:01 2 0.48 0.00 0.05 0.00 0.07 99.40 23:07:01 3 0.03 0.00 0.00 0.00 0.12 99.85 23:08:01 all 0.08 0.00 0.04 0.00 0.01 99.88 23:08:01 0 0.00 0.00 0.02 0.00 0.02 99.97 23:08:01 1 0.05 0.00 0.07 0.00 0.00 99.88 23:08:01 2 0.23 0.00 0.07 0.00 0.02 99.68 23:08:01 3 0.02 0.00 0.02 0.00 0.00 99.97 23:09:01 all 0.15 0.00 0.02 0.00 0.00 99.83 23:09:01 0 0.02 0.00 0.02 0.00 0.00 99.97 23:09:01 1 0.50 0.00 0.02 0.00 0.02 99.47 23:09:01 2 0.05 0.00 0.02 0.00 0.02 99.92 23:09:01 3 0.03 0.00 0.02 0.00 0.00 99.95 23:10:01 all 0.15 0.00 0.05 0.00 0.02 99.78 23:10:01 0 0.00 0.00 0.05 0.02 0.02 99.92 23:10:01 1 0.52 0.00 0.03 0.00 0.03 99.42 23:10:01 2 0.07 0.00 0.07 0.00 0.05 99.82 23:10:01 3 0.02 0.00 0.02 0.00 0.00 99.97 Average: all 0.56 0.00 0.18 0.10 0.11 99.05 Average: 0 0.44 0.00 0.19 0.03 0.08 99.27 Average: 1 0.73 0.00 0.20 0.02 0.10 98.95 Average: 2 0.60 0.00 0.18 0.00 0.12 99.09 Average: 3 0.48 0.00 0.16 0.35 0.12 98.89