---> uname -a: Linux 5144f32498b5 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 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% /w/workspace/gexfoundry_device-mqtt-go_master@tmp /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 ---> free -m: total used free shared buff/cache available Mem: 1837 764 111 0 960 1004 Swap: 1023 3 1020 ---> 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) 08/31/20 _x86_64_ (4 CPU) 20:54:57 LINUX RESTART 20:56:01 tps rtps wtps bread/s bwrtn/s 20:57:01 2.51 0.00 2.51 0.00 57.64 20:58:01 0.45 0.00 0.45 0.00 7.20 20:59:01 0.17 0.00 0.17 0.00 1.88 21:00:01 0.27 0.00 0.27 0.00 3.46 21:01:01 0.40 0.02 0.38 0.13 5.96 21:02:01 0.48 0.13 0.35 2.26 6.53 21:03:01 254.15 144.90 109.26 6620.75 32454.72 21:04:01 237.11 107.47 129.64 6577.47 32740.77 Average: 61.97 31.58 30.39 1650.69 8162.84 20:56:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 20:57:01 168444 1713112 91.05 2620 1147792 1103996 37.68 415476 1138180 12 20:58:01 167728 1713828 91.09 2620 1147796 1096800 37.43 418616 1136080 16 20:59:01 170500 1711056 90.94 2620 1147804 1073156 36.62 416960 1135280 12 21:00:01 168328 1713228 91.05 2620 1147804 1073312 36.63 419716 1134788 8 21:01:01 166112 1715444 91.17 2620 1147808 1076148 36.73 437684 1118004 8 21:02:01 167416 1714140 91.10 2620 1147956 1073880 36.65 437324 1118080 8 21:03:01 200836 1680720 89.33 2596 1052560 1095764 37.40 530884 952300 24 21:04:01 142944 1738612 92.40 1496 1007604 1129884 38.56 623048 822880 88 Average: 169039 1712518 91.02 2477 1118391 1090368 37.21 462464 1069449 22 20:56:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 20:57:01 eth0 1.62 0.48 0.40 0.20 0.00 0.00 0.00 20:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:58:01 eth0 2.30 0.90 1.06 0.59 0.00 0.00 0.00 20:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:59:01 eth0 0.82 0.10 0.07 0.04 0.00 0.00 0.00 20:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:00:01 eth0 1.75 0.40 0.37 0.20 0.00 0.00 0.00 21:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:01:01 eth0 0.92 0.53 0.43 0.27 0.00 0.00 0.00 21:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:02:01 eth0 0.98 0.35 0.32 0.20 0.00 0.00 0.00 21:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:03:01 eth0 224.36 175.24 4060.80 81.08 0.00 0.00 0.00 21:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:03:01 docker0 21.80 19.93 2.65 79.56 0.00 0.00 0.00 21:04:01 eth0 208.24 161.91 3442.77 77.93 0.00 0.00 0.00 21:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:04:01 docker0 25.84 28.87 1.39 198.46 0.00 0.00 0.00 Average: eth0 55.14 42.50 938.60 20.07 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 5.96 6.10 0.50 34.77 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) 08/31/20 _x86_64_ (4 CPU) 20:54:57 LINUX RESTART 20:56:01 CPU %user %nice %system %iowait %steal %idle 20:57:01 all 0.15 0.00 0.04 0.00 0.00 99.81 20:57:01 0 0.08 0.00 0.03 0.00 0.00 99.88 20:57:01 1 0.40 0.00 0.05 0.00 0.00 99.55 20:57:01 2 0.05 0.00 0.03 0.00 0.02 99.90 20:57:01 3 0.08 0.00 0.03 0.00 0.00 99.88 20:58:01 all 0.15 0.00 0.03 0.00 0.00 99.83 20:58:01 0 0.48 0.00 0.03 0.00 0.02 99.47 20:58:01 1 0.02 0.00 0.00 0.00 0.00 99.98 20:58:01 2 0.03 0.00 0.03 0.00 0.00 99.93 20:58:01 3 0.03 0.00 0.03 0.00 0.00 99.93 20:59:01 all 0.14 0.00 0.02 0.00 0.00 99.84 20:59:01 0 0.47 0.00 0.03 0.00 0.00 99.50 20:59:01 1 0.05 0.00 0.02 0.00 0.00 99.93 20:59:01 2 0.02 0.00 0.03 0.00 0.00 99.95 20:59:01 3 0.02 0.00 0.02 0.00 0.00 99.97 21:00:01 all 0.13 0.00 0.03 0.00 0.00 99.84 21:00:01 0 0.40 0.00 0.05 0.00 0.00 99.55 21:00:01 1 0.03 0.00 0.00 0.00 0.00 99.97 21:00:01 2 0.08 0.00 0.02 0.00 0.00 99.90 21:00:01 3 0.03 0.00 0.00 0.00 0.00 99.97 21:01:01 all 0.09 0.00 0.06 0.00 0.00 99.85 21:01:01 0 0.23 0.00 0.15 0.00 0.00 99.62 21:01:01 1 0.05 0.00 0.05 0.00 0.00 99.90 21:01:01 2 0.03 0.00 0.03 0.00 0.00 99.93 21:01:01 3 0.03 0.00 0.03 0.00 0.00 99.93 21:02:01 all 0.15 0.00 0.02 0.00 0.00 99.83 21:02:01 0 0.53 0.00 0.03 0.02 0.00 99.42 21:02:01 1 0.03 0.00 0.02 0.00 0.00 99.95 21:02:01 2 0.00 0.00 0.02 0.00 0.00 99.98 21:02:01 3 0.02 0.00 0.03 0.00 0.00 99.95 21:03:01 all 9.28 0.00 5.07 2.50 0.03 83.11 21:03:01 0 9.45 0.00 5.20 3.25 0.03 82.06 21:03:01 1 8.77 0.00 5.01 3.22 0.02 82.97 21:03:01 2 8.56 0.00 4.62 1.72 0.03 85.08 21:03:01 3 10.36 0.00 5.43 1.82 0.03 82.35 21:04:01 all 10.58 0.00 6.59 2.86 0.03 79.94 21:04:01 0 10.20 0.00 6.58 2.05 0.03 81.14 21:04:01 1 9.90 0.00 7.54 2.95 0.03 79.57 21:04:01 2 10.45 0.00 5.44 3.68 0.03 80.40 21:04:01 3 11.75 0.00 6.80 2.77 0.02 78.66 Average: all 2.56 0.00 1.47 0.66 0.01 95.30 Average: 0 2.71 0.00 1.50 0.66 0.01 95.12 Average: 1 2.39 0.00 1.57 0.76 0.01 95.27 Average: 2 2.38 0.00 1.27 0.67 0.01 95.67 Average: 3 2.76 0.00 1.53 0.57 0.01 95.13