---> uname -a: Linux 8b495a45e50e 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 6.6G 43.4G 13% / 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 6.6G 43.4G 13% /etc/resolv.conf /dev/vda1 50.0G 6.6G 43.4G 13% /etc/hostname /dev/vda1 50.0G 6.6G 43.4G 13% /etc/hosts /dev/vda1 50.0G 6.6G 43.4G 13% /var/log/sa-host /dev/vda1 50.0G 6.6G 43.4G 13% /w/workspace/gexfoundry_device-mqtt-go_PR-169 /dev/vda1 50.0G 6.6G 43.4G 13% /w/workspace/gexfoundry_device-mqtt-go_PR-169@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 583 113 0 1140 1148 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) 09/17/20 _x86_64_ (4 CPU) 08:58:32 LINUX RESTART (4 CPU) 09:00:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 09:01:01 24.78 8.73 16.05 0.00 4153.56 1953.71 0.00 09:02:02 0.53 0.07 0.46 0.00 1.45 8.86 0.00 09:03:01 0.25 0.00 0.25 0.00 0.00 3.16 0.00 09:04:01 0.30 0.00 0.30 0.00 0.00 3.86 0.00 09:05:01 0.28 0.00 0.28 0.00 0.00 3.66 0.00 09:06:01 0.32 0.02 0.30 0.00 0.13 4.26 0.00 09:07:01 0.17 0.00 0.17 0.00 0.00 1.90 0.00 09:08:01 0.17 0.00 0.17 0.00 0.00 2.43 0.00 09:09:01 0.27 0.00 0.27 0.00 0.00 3.87 0.00 09:10:02 0.27 0.00 0.27 0.00 0.00 2.57 0.00 09:11:01 0.22 0.00 0.22 0.00 0.00 2.05 0.00 09:12:01 0.22 0.00 0.22 0.00 0.00 3.85 0.00 09:13:01 0.23 0.00 0.23 0.00 0.00 3.75 0.00 09:14:01 16.61 16.23 0.38 0.00 1354.19 6.49 0.00 Average: 3.19 1.79 1.40 0.00 394.33 143.49 0.00 09:00:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:01:01 179712 0 513184 27.27 2620 1186040 1062164 36.25 372432 1167920 20 09:02:02 192548 0 500176 26.58 2620 1186212 970752 33.13 365908 1164632 24 09:03:01 190452 0 502296 26.70 2620 1186188 970800 33.13 367908 1164020 12 09:04:01 190232 0 502512 26.71 2620 1186192 970860 33.13 372920 1159384 8 09:05:01 188512 0 504228 26.80 2620 1186196 970896 33.13 390864 1143388 8 09:06:01 190580 0 502152 26.69 2620 1186204 970512 33.12 388704 1143388 8 09:07:01 189508 0 503220 26.74 2620 1186208 970896 33.13 387852 1145764 8 09:08:01 189180 0 503544 26.76 2620 1186212 970920 33.14 387924 1145764 8 09:09:01 189836 0 502880 26.73 2620 1186220 970836 33.13 387668 1145764 8 09:10:02 190252 0 502460 26.70 2620 1186224 970740 33.13 381284 1151532 8 09:11:01 190216 0 502492 26.71 2620 1186228 970800 33.13 381624 1151532 8 09:12:01 189408 0 503296 26.75 2620 1186232 970936 33.14 382120 1151532 8 09:13:01 188924 0 503772 26.77 2620 1186240 970996 33.14 382580 1151536 12 09:14:01 134344 0 514780 27.36 2620 1229812 996588 34.01 388996 1194580 148 Average: 185265 0 504357 26.81 2620 1189315 979193 33.42 381342 1155767 21 09:00:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:01:01 eth0 64.75 49.09 340.33 38.08 0.00 0.00 0.00 0.00 09:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:01:01 docker0 1.68 1.50 0.33 3.58 0.00 0.00 0.00 0.00 09:02:02 eth0 2.89 0.36 0.47 0.17 0.00 0.00 0.00 0.00 09:02:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:02:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:01 eth0 4.46 0.57 0.88 0.41 0.00 0.00 0.00 0.00 09:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 eth0 1.90 0.50 0.65 0.36 0.00 0.00 0.00 0.00 09:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:05:01 eth0 2.04 0.68 0.74 0.49 0.00 0.00 0.00 0.00 09:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:06:01 eth0 2.75 0.08 0.25 0.04 0.00 0.00 0.00 0.00 09:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:07:01 eth0 2.88 1.00 1.19 0.78 0.00 0.00 0.00 0.00 09:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:08:01 eth0 2.13 0.58 0.64 0.40 0.00 0.00 0.00 0.00 09:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:09:01 eth0 1.10 0.57 0.57 0.40 0.00 0.00 0.00 0.00 09:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:10:02 eth0 1.58 0.15 0.20 0.07 0.00 0.00 0.00 0.00 09:10:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:10:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:11:01 eth0 1.46 0.32 0.41 0.20 0.00 0.00 0.00 0.00 09:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:12:01 eth0 1.32 0.35 0.36 0.20 0.00 0.00 0.00 0.00 09:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:13:01 eth0 2.18 0.90 0.89 0.59 0.00 0.00 0.00 0.00 09:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:14:01 eth0 11.22 7.79 7.49 14.00 0.00 0.00 0.00 0.00 09:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 7.34 4.50 25.42 4.02 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 0.12 0.11 0.02 0.26 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) 09/17/20 _x86_64_ (4 CPU) 08:58:32 LINUX RESTART (4 CPU) 09:00:01 CPU %user %nice %system %iowait %steal %idle 09:01:01 all 2.00 0.00 1.83 0.43 6.96 88.78 09:01:01 0 1.55 0.00 1.74 0.68 7.58 88.46 09:01:01 1 2.00 0.00 1.49 0.26 7.16 89.09 09:01:01 2 2.10 0.00 2.23 0.39 6.73 88.55 09:01:01 3 2.35 0.00 1.87 0.39 6.37 89.02 09:02:02 all 0.39 0.00 0.20 0.00 2.10 97.32 09:02:02 0 0.81 0.00 0.13 0.00 1.81 97.25 09:02:02 1 0.35 0.00 0.23 0.00 2.45 96.98 09:02:02 2 0.25 0.00 0.31 0.00 2.32 97.12 09:02:02 3 0.15 0.00 0.12 0.00 1.81 97.93 09:03:01 all 0.16 0.00 0.05 0.00 1.10 98.68 09:03:01 0 0.20 0.00 0.02 0.00 0.76 99.02 09:03:01 1 0.05 0.00 0.10 0.00 0.99 98.86 09:03:01 2 0.32 0.00 0.07 0.00 1.69 97.92 09:03:01 3 0.08 0.00 0.03 0.00 0.96 98.92 09:04:01 all 0.06 0.00 0.04 0.00 0.88 99.01 09:04:01 0 0.02 0.00 0.02 0.00 0.51 99.45 09:04:01 1 0.10 0.00 0.03 0.02 1.35 98.50 09:04:01 2 0.07 0.00 0.02 0.00 1.25 98.66 09:04:01 3 0.07 0.00 0.10 0.00 0.38 99.45 09:05:01 all 0.08 0.00 0.04 0.00 0.92 98.96 09:05:01 0 0.03 0.00 0.02 0.00 0.41 99.54 09:05:01 1 0.25 0.00 0.03 0.00 1.93 97.79 09:05:01 2 0.03 0.00 0.03 0.00 0.83 99.11 09:05:01 3 0.02 0.00 0.08 0.00 0.48 99.42 09:06:01 all 0.07 0.00 0.02 0.00 0.84 99.07 09:06:01 0 0.03 0.00 0.02 0.00 1.01 98.94 09:06:01 1 0.02 0.00 0.03 0.00 1.15 98.80 09:06:01 2 0.02 0.00 0.02 0.00 0.50 99.47 09:06:01 3 0.20 0.00 0.03 0.00 0.70 99.07 09:07:01 all 0.13 0.00 0.02 0.00 0.20 99.64 09:07:01 0 0.10 0.00 0.05 0.00 0.27 99.58 09:07:01 1 0.05 0.00 0.00 0.00 0.13 99.82 09:07:01 2 0.03 0.00 0.03 0.00 0.18 99.75 09:07:01 3 0.33 0.00 0.02 0.02 0.23 99.40 09:08:01 all 0.11 0.00 0.04 0.00 0.10 99.75 09:08:01 0 0.02 0.00 0.03 0.00 0.05 99.90 09:08:01 1 0.02 0.00 0.03 0.00 0.03 99.92 09:08:01 2 0.05 0.00 0.07 0.00 0.10 99.78 09:08:01 3 0.35 0.00 0.03 0.00 0.23 99.38 09:09:01 all 0.14 0.00 0.08 0.00 0.87 98.91 09:09:01 0 0.12 0.00 0.10 0.00 1.16 98.62 09:09:01 1 0.08 0.00 0.08 0.00 0.70 99.14 09:09:01 2 0.05 0.00 0.10 0.00 0.83 99.02 09:09:01 3 0.31 0.00 0.05 0.00 0.78 98.86 09:10:02 all 0.19 0.00 0.19 0.00 1.56 98.06 09:10:02 0 0.12 0.00 0.13 0.00 1.28 98.47 09:10:02 1 0.17 0.00 0.18 0.00 1.84 97.81 09:10:02 2 0.30 0.00 0.25 0.00 1.89 97.56 09:10:02 3 0.18 0.00 0.18 0.00 1.25 98.39 09:11:01 all 0.12 0.00 0.04 0.00 0.83 99.01 09:11:01 0 0.07 0.00 0.07 0.00 1.35 98.52 09:11:01 1 0.05 0.00 0.03 0.00 0.74 99.17 09:11:01 2 0.34 0.00 0.05 0.00 0.86 98.75 09:11:01 3 0.02 0.00 0.02 0.00 0.37 99.59 09:11:01 CPU %user %nice %system %iowait %steal %idle 09:12:01 all 0.15 0.00 0.03 0.00 0.52 99.31 09:12:01 0 0.03 0.00 0.02 0.00 0.73 99.22 09:12:01 1 0.07 0.00 0.02 0.00 0.37 99.55 09:12:01 2 0.23 0.00 0.05 0.00 0.47 99.25 09:12:01 3 0.25 0.00 0.05 0.00 0.50 99.20 09:13:01 all 0.13 0.00 0.03 0.00 0.13 99.71 09:13:01 0 0.02 0.00 0.02 0.00 0.08 99.88 09:13:01 1 0.03 0.00 0.02 0.00 0.05 99.90 09:13:01 2 0.07 0.00 0.05 0.00 0.27 99.62 09:13:01 3 0.42 0.00 0.03 0.00 0.12 99.43 09:14:01 all 0.50 0.00 0.24 0.28 0.39 98.60 09:14:01 0 0.58 0.00 0.35 0.07 0.32 98.68 09:14:01 1 0.50 0.00 0.12 0.07 0.20 99.12 09:14:01 2 0.28 0.00 0.23 0.47 0.65 98.37 09:14:01 3 0.62 0.00 0.27 0.52 0.38 98.21 Average: all 0.30 0.00 0.21 0.05 1.25 98.18 Average: 0 0.27 0.00 0.20 0.05 1.25 98.23 Average: 1 0.27 0.00 0.17 0.02 1.38 98.15 Average: 2 0.30 0.00 0.25 0.06 1.33 98.05 Average: 3 0.38 0.00 0.21 0.07 1.05 98.29