---> uname -a: Linux 830a9f80c66e 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% /w/workspace/gexfoundry_device-mqtt-go_PR-152@tmp /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-152 ---> free -m: total used free shared buff/cache available Mem: 1837 665 131 0 1039 1066 Swap: 1023 1 1022 ---> 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) 20:24:34 LINUX RESTART 20:25:01 tps rtps wtps bread/s bwrtn/s 20:26:01 93.14 40.95 52.20 7416.78 6716.06 20:27:01 1.95 0.00 1.95 0.00 41.87 20:28:01 0.38 0.00 0.38 0.00 6.38 20:29:01 0.38 0.00 0.38 0.00 5.83 20:30:01 0.30 0.00 0.30 0.00 4.70 20:31:01 0.43 0.00 0.43 0.00 7.86 20:32:02 0.33 0.02 0.32 0.13 4.73 20:33:01 0.27 0.00 0.27 0.00 2.27 20:34:01 0.40 0.00 0.40 0.00 6.11 20:35:01 0.52 0.18 0.33 10.53 5.73 Average: 9.83 4.12 5.71 744.39 681.65 20:25:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 20:26:01 172572 1708984 90.83 2620 1133664 1114412 38.03 428500 1121016 116 20:27:01 177904 1703652 90.54 2620 1133668 1080832 36.89 427972 1117128 16 20:28:01 177724 1703832 90.55 2620 1133676 1080832 36.89 428108 1117116 8 20:29:01 175968 1705588 90.65 2620 1133676 1080972 36.89 430172 1116464 16 20:30:01 175604 1705952 90.67 2620 1133684 1081044 36.89 437476 1109444 16 20:31:01 176168 1705388 90.64 2620 1133688 1080972 36.89 437592 1109440 8 20:32:02 175572 1705984 90.67 2620 1133696 1081100 36.90 453800 1093732 8 20:33:01 176108 1705448 90.64 2620 1133704 1081028 36.89 453296 1093732 8 20:34:01 175696 1705860 90.66 2620 1133708 1081028 36.89 453300 1093732 8 20:35:01 161760 1719796 91.40 2620 1134068 1095128 37.37 449208 1104068 60 Average: 174508 1707048 90.73 2620 1133723 1085735 37.05 439942 1107587 26 20:25:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 20:26:01 eth0 487.15 278.46 1044.55 89.50 0.00 0.00 0.00 20:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:26:01 docker0 1.73 1.71 0.32 3.46 0.00 0.00 0.00 20:27:01 eth0 0.07 0.12 0.01 0.02 0.00 0.00 0.00 20:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:28:01 eth0 0.77 0.07 0.07 0.01 0.00 0.00 0.00 20:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:29:01 eth0 1.08 0.33 0.32 0.20 0.00 0.00 0.00 20:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:30:01 eth0 0.50 0.33 0.27 0.20 0.00 0.00 0.00 20:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:31:01 eth0 0.18 0.17 0.08 0.07 0.00 0.00 0.00 20:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:31:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:32:02 eth0 0.22 0.18 0.07 0.01 0.00 0.00 0.00 20:32:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:32:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:33:01 eth0 0.07 0.08 0.01 0.01 0.00 0.00 0.00 20:33:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:33:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:34:01 eth0 0.08 0.07 0.01 0.01 0.00 0.00 0.00 20:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:34:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:35:01 eth0 3.75 2.56 3.84 1.27 0.00 0.00 0.00 20:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:35:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 49.50 28.30 105.15 9.15 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.17 0.17 0.03 0.35 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) 20:24:34 LINUX RESTART 20:25:01 CPU %user %nice %system %iowait %steal %idle 20:26:01 all 13.67 0.00 5.58 3.50 0.02 77.23 20:26:01 0 13.63 0.00 5.53 1.26 0.02 79.56 20:26:01 1 12.26 0.00 5.87 3.39 0.02 78.46 20:26:01 2 12.92 0.00 5.66 3.54 0.02 77.86 20:26:01 3 15.89 0.00 5.25 5.86 0.02 72.98 20:27:01 all 0.15 0.00 0.04 0.00 0.00 99.81 20:27:01 0 0.05 0.00 0.07 0.00 0.00 99.88 20:27:01 1 0.05 0.00 0.05 0.00 0.00 99.90 20:27:01 2 0.47 0.00 0.07 0.00 0.00 99.47 20:27:01 3 0.03 0.00 0.03 0.00 0.00 99.93 20:28:01 all 0.15 0.00 0.03 0.00 0.00 99.81 20:28:01 0 0.03 0.00 0.03 0.00 0.00 99.93 20:28:01 1 0.07 0.00 0.03 0.00 0.00 99.90 20:28:01 2 0.52 0.00 0.02 0.00 0.02 99.45 20:28:01 3 0.03 0.00 0.02 0.00 0.00 99.95 20:29:01 all 0.15 0.00 0.03 0.00 0.00 99.83 20:29:01 0 0.02 0.00 0.03 0.00 0.00 99.95 20:29:01 1 0.03 0.00 0.05 0.00 0.00 99.92 20:29:01 2 0.48 0.00 0.02 0.00 0.00 99.50 20:29:01 3 0.03 0.00 0.03 0.00 0.00 99.93 20:30:01 all 0.16 0.00 0.04 0.00 0.00 99.80 20:30:01 0 0.03 0.00 0.03 0.00 0.00 99.93 20:30:01 1 0.05 0.00 0.05 0.00 0.02 99.88 20:30:01 2 0.52 0.00 0.02 0.00 0.00 99.47 20:30:01 3 0.03 0.00 0.07 0.00 0.00 99.90 20:31:01 all 0.16 0.00 0.05 0.00 0.00 99.80 20:31:01 0 0.28 0.00 0.03 0.00 0.00 99.68 20:31:01 1 0.03 0.00 0.03 0.00 0.00 99.93 20:31:01 2 0.27 0.00 0.02 0.00 0.00 99.72 20:31:01 3 0.03 0.00 0.08 0.00 0.00 99.88 20:32:02 all 0.16 0.00 0.07 0.00 0.00 99.77 20:32:02 0 0.05 0.00 0.03 0.00 0.00 99.92 20:32:02 1 0.03 0.00 0.03 0.00 0.00 99.93 20:32:02 2 0.52 0.00 0.02 0.00 0.00 99.47 20:32:02 3 0.05 0.00 0.22 0.00 0.00 99.73 20:33:01 all 0.14 0.00 0.03 0.00 0.00 99.83 20:33:01 0 0.02 0.00 0.02 0.00 0.00 99.97 20:33:01 1 0.15 0.00 0.05 0.00 0.00 99.80 20:33:01 2 0.39 0.00 0.02 0.00 0.00 99.59 20:33:01 3 0.02 0.00 0.03 0.00 0.00 99.95 20:34:01 all 0.04 0.00 0.03 0.00 0.00 99.94 20:34:01 0 0.02 0.00 0.02 0.00 0.00 99.97 20:34:01 1 0.07 0.00 0.03 0.00 0.00 99.90 20:34:01 2 0.03 0.00 0.02 0.00 0.00 99.95 20:34:01 3 0.03 0.00 0.02 0.00 0.00 99.95 20:35:01 all 0.24 0.00 0.24 0.01 0.00 99.51 20:35:01 0 0.30 0.00 0.32 0.00 0.00 99.38 20:35:01 1 0.40 0.00 0.25 0.00 0.00 99.35 20:35:01 2 0.12 0.00 0.13 0.00 0.00 99.75 20:35:01 3 0.15 0.00 0.27 0.00 0.00 99.58 Average: all 1.50 0.00 0.61 0.35 0.00 97.54 Average: 0 1.44 0.00 0.61 0.13 0.00 97.83 Average: 1 1.31 0.00 0.64 0.34 0.00 97.70 Average: 2 1.62 0.00 0.60 0.35 0.00 97.43 Average: 3 1.62 0.00 0.60 0.58 0.00 97.20