---> uname -a: Linux 88113332ffb7 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 6.9G 43.0G 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 43.0G 14% /etc/resolv.conf /dev/vda1 50.0G 6.9G 43.0G 14% /etc/hostname /dev/vda1 50.0G 6.9G 43.0G 14% /etc/hosts /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-166 /dev/vda1 50.0G 6.9G 43.0G 14% /w/workspace/gexfoundry_device-mqtt-go_PR-166@tmp /dev/vda1 50.0G 6.9G 43.0G 14% /var/log/sa-host ---> free -m: total used free shared buff/cache available Mem: 1837 635 144 0 1057 1095 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) 09/08/20 _x86_64_ (4 CPU) 21:32:57 LINUX RESTART (4 CPU) 21:34:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 21:35:01 8.18 2.95 5.23 0.00 154.01 140.89 0.00 21:36:01 0.30 0.00 0.30 0.00 0.00 4.60 0.00 21:37:01 0.40 0.00 0.40 0.00 0.00 4.83 0.00 21:38:01 0.37 0.00 0.37 0.00 0.00 5.48 0.00 21:39:01 0.23 0.00 0.23 0.00 0.00 2.85 0.00 21:40:01 0.33 0.02 0.32 0.00 0.13 3.51 0.00 21:41:01 0.28 0.00 0.28 0.00 0.00 3.15 0.00 21:42:01 0.30 0.00 0.30 0.00 0.00 3.51 0.00 21:43:01 0.25 0.00 0.25 0.00 0.00 3.53 0.00 21:44:01 0.18 0.00 0.18 0.00 0.00 2.30 0.00 21:45:01 0.27 0.00 0.27 0.00 0.00 3.46 0.00 Average: 1.00 0.27 0.73 0.00 13.80 16.01 0.00 21:34:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 21:35:01 168192 0 555180 29.51 2620 1155564 1119972 38.22 415880 1136520 16 21:36:01 173844 0 549524 29.21 2620 1155568 1080308 36.87 415884 1132196 16 21:37:01 173396 0 549968 29.23 2620 1155572 1080428 36.87 416400 1132196 8 21:38:01 172776 0 550584 29.26 2620 1155576 1080480 36.87 418812 1131060 8 21:39:01 170264 0 553092 29.40 2620 1155580 1080372 36.87 432020 1119920 16 21:40:01 170064 0 553280 29.41 2620 1155592 1080372 36.87 432160 1119920 12 21:41:01 169508 0 553832 29.43 2620 1155596 1080504 36.88 423692 1128992 8 21:42:01 169640 0 553692 29.43 2620 1155604 1080492 36.88 423612 1128992 20 21:43:01 169112 0 554216 29.46 2620 1155608 1080504 36.88 423848 1128992 16 21:44:01 168972 0 554348 29.46 2620 1155616 1080516 36.88 419076 1133852 20 21:45:01 168732 0 554588 29.47 2620 1155616 1080492 36.88 419712 1133848 16 Average: 170409 0 552937 29.39 2620 1155590 1084040 37.00 421918 1129681 14 21:34:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 21:35:01 eth0 20.56 15.27 20.14 18.44 0.00 0.00 0.00 0.00 21:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:35:01 docker0 1.76 1.47 0.33 3.58 0.00 0.00 0.00 0.00 21:36:01 eth0 3.35 2.05 2.92 0.13 0.00 0.00 0.00 0.00 21:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:36:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:37:01 eth0 0.87 0.30 0.31 0.20 0.00 0.00 0.00 0.00 21:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:38:01 eth0 0.45 0.40 0.30 0.21 0.00 0.00 0.00 0.00 21:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:39:01 eth0 0.22 0.18 0.08 0.07 0.00 0.00 0.00 0.00 21:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:40:01 eth0 0.63 0.07 0.11 0.01 0.00 0.00 0.00 0.00 21:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:41:01 eth0 1.28 0.45 0.37 0.21 0.00 0.00 0.00 0.00 21:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:42:01 eth0 0.80 0.35 0.31 0.20 0.00 0.00 0.00 0.00 21:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:43:01 eth0 1.23 0.38 0.35 0.20 0.00 0.00 0.00 0.00 21:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:44:01 eth0 2.05 0.78 0.76 0.47 0.00 0.00 0.00 0.00 21:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:45:01 eth0 1.33 0.83 0.78 0.48 0.00 0.00 0.00 0.00 21:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.95 1.90 2.38 1.85 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 0.16 0.13 0.03 0.32 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) 09/08/20 _x86_64_ (4 CPU) 21:32:57 LINUX RESTART (4 CPU) 21:34:02 CPU %user %nice %system %iowait %steal %idle 21:35:01 all 1.11 0.00 0.56 0.05 0.00 98.28 21:35:01 0 1.00 0.00 0.58 0.05 0.00 98.37 21:35:01 1 1.37 0.00 0.59 0.02 0.00 98.01 21:35:01 2 1.07 0.00 0.63 0.12 0.00 98.18 21:35:01 3 0.98 0.00 0.46 0.00 0.00 98.56 21:36:01 all 0.16 0.00 0.04 0.00 0.00 99.80 21:36:01 0 0.07 0.00 0.05 0.00 0.00 99.88 21:36:01 1 0.50 0.00 0.03 0.00 0.00 99.47 21:36:01 2 0.07 0.00 0.05 0.00 0.00 99.88 21:36:01 3 0.02 0.00 0.02 0.00 0.00 99.97 21:37:01 all 0.13 0.00 0.03 0.00 0.00 99.84 21:37:01 0 0.02 0.00 0.02 0.00 0.00 99.97 21:37:01 1 0.42 0.00 0.03 0.00 0.00 99.55 21:37:01 2 0.07 0.00 0.02 0.00 0.00 99.92 21:37:01 3 0.03 0.00 0.03 0.00 0.00 99.93 21:38:01 all 0.15 0.00 0.03 0.00 0.00 99.81 21:38:01 0 0.03 0.00 0.03 0.02 0.00 99.92 21:38:01 1 0.50 0.00 0.03 0.00 0.00 99.47 21:38:01 2 0.03 0.00 0.05 0.00 0.00 99.92 21:38:01 3 0.05 0.00 0.02 0.00 0.00 99.93 21:39:01 all 0.16 0.00 0.05 0.00 0.01 99.78 21:39:01 0 0.00 0.00 0.02 0.00 0.00 99.98 21:39:01 1 0.53 0.00 0.03 0.00 0.02 99.42 21:39:01 2 0.08 0.00 0.12 0.00 0.02 99.78 21:39:01 3 0.03 0.00 0.03 0.00 0.00 99.93 21:40:01 all 0.09 0.00 0.03 0.00 0.00 99.88 21:40:01 0 0.28 0.00 0.05 0.00 0.00 99.67 21:40:01 1 0.02 0.00 0.03 0.00 0.00 99.95 21:40:01 2 0.03 0.00 0.03 0.00 0.00 99.93 21:40:01 3 0.02 0.00 0.02 0.00 0.00 99.97 21:41:01 all 0.10 0.00 0.03 0.00 0.00 99.87 21:41:01 0 0.23 0.00 0.03 0.00 0.00 99.73 21:41:01 1 0.08 0.00 0.03 0.00 0.00 99.88 21:41:01 2 0.03 0.00 0.03 0.00 0.00 99.93 21:41:01 3 0.03 0.00 0.03 0.00 0.00 99.93 21:42:01 all 0.16 0.00 0.02 0.00 0.00 99.81 21:42:01 0 0.53 0.00 0.02 0.00 0.00 99.45 21:42:01 1 0.05 0.00 0.05 0.00 0.00 99.90 21:42:01 2 0.03 0.00 0.02 0.00 0.00 99.95 21:42:01 3 0.03 0.00 0.02 0.00 0.00 99.95 21:43:01 all 0.18 0.00 0.03 0.00 0.00 99.78 21:43:01 0 0.52 0.00 0.05 0.00 0.02 99.42 21:43:01 1 0.10 0.00 0.02 0.00 0.00 99.88 21:43:01 2 0.07 0.00 0.03 0.00 0.00 99.90 21:43:01 3 0.05 0.00 0.03 0.00 0.00 99.92 21:44:01 all 0.13 0.00 0.03 0.00 0.00 99.83 21:44:01 0 0.12 0.00 0.02 0.00 0.00 99.87 21:44:01 1 0.05 0.00 0.03 0.00 0.00 99.92 21:44:01 2 0.33 0.00 0.05 0.00 0.02 99.60 21:44:01 3 0.02 0.00 0.03 0.00 0.00 99.95 21:45:01 all 0.16 0.00 0.03 0.00 0.00 99.80 21:45:01 0 0.03 0.00 0.03 0.00 0.00 99.93 21:45:01 1 0.05 0.00 0.05 0.00 0.00 99.90 21:45:01 2 0.53 0.00 0.03 0.00 0.00 99.43 21:45:01 3 0.03 0.00 0.02 0.00 0.00 99.95 Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.23 0.00 0.08 0.00 0.00 99.68 Average: 0 0.26 0.00 0.08 0.01 0.00 99.66 Average: 1 0.33 0.00 0.08 0.00 0.00 99.58 Average: 2 0.21 0.00 0.10 0.01 0.00 99.68 Average: 3 0.12 0.00 0.06 0.00 0.00 99.82