---> uname -a: Linux c791b9bc64c9 3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018 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 L1tf: Mitigation; PTE Inversion; VMX SMT disabled, L1D conditional cache flushes Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline 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 6.3G 43.7G 13% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 919.1M 0 919.1M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 6.3G 43.7G 13% /etc/resolv.conf /dev/vda1 50.0G 6.3G 43.7G 13% /etc/hostname /dev/vda1 50.0G 6.3G 43.7G 13% /etc/hosts /dev/vda1 50.0G 6.3G 43.7G 13% /w/workspace/xfoundry_device-modbus-go_PR-139 /dev/vda1 50.0G 6.3G 43.7G 13% /w/workspace/xfoundry_device-modbus-go_PR-139@tmp /dev/vda1 50.0G 6.3G 43.7G 13% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1838 596 80 0 1160 1136 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 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 04/21/20 _x86_64_ (4 CPU) 17:41:03 LINUX RESTART 17:42:01 tps rtps wtps bread/s bwrtn/s 17:43:01 9.89 0.07 9.83 2.13 1927.23 17:44:01 2.83 0.00 2.83 0.00 88.78 17:45:01 0.30 0.00 0.30 0.00 3.48 17:46:01 0.35 0.00 0.35 0.00 5.66 17:47:01 0.27 0.00 0.27 0.00 4.96 17:48:01 0.40 0.00 0.40 0.00 6.40 17:49:01 0.33 0.00 0.33 0.00 5.45 17:50:02 0.27 0.00 0.27 0.00 4.01 17:51:01 79.67 52.72 26.95 3543.05 9414.44 Average: 10.35 5.78 4.57 388.20 1258.64 17:42:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:43:01 122120 1760184 93.51 2620 1226752 947072 32.31 428392 1168316 8 17:44:01 124496 1757808 93.39 2620 1226760 908892 31.01 427384 1168008 8 17:45:01 123924 1758380 93.42 2620 1226768 909016 31.02 427928 1168004 16 17:46:01 125248 1757056 93.35 2620 1226768 908788 31.01 426608 1168004 16 17:47:01 124932 1757372 93.36 2620 1226776 908872 31.01 427208 1168004 8 17:48:01 123936 1758368 93.42 2620 1226780 909136 31.02 428016 1168004 16 17:49:01 126864 1755440 93.26 2620 1226784 909160 31.02 424720 1168000 8 17:50:02 127520 1754784 93.23 2620 1226788 909016 31.02 424172 1168000 12 17:51:01 79412 1802892 95.78 2620 1213684 1110876 37.90 478668 1140992 81356 Average: 119828 1762476 93.63 2620 1225318 935648 31.92 432566 1165037 9050 17:42:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 17:43:01 eth0 1.83 0.75 0.93 0.23 0.00 0.00 0.00 17:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:44:01 eth0 1.90 0.28 0.39 0.20 0.00 0.00 0.00 17:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:45:01 eth0 1.20 0.83 0.76 0.41 0.00 0.00 0.00 17:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:46:01 eth0 0.10 0.07 0.01 0.01 0.00 0.00 0.00 17:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:47:01 eth0 0.68 0.12 0.17 0.07 0.00 0.00 0.00 17:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:48:01 eth0 0.85 0.43 0.30 0.21 0.00 0.00 0.00 17:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:49:01 eth0 0.75 0.42 0.30 0.21 0.00 0.00 0.00 17:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:50:02 eth0 0.90 0.33 0.30 0.20 0.00 0.00 0.00 17:50:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:50:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:51:01 eth0 92.72 76.69 2362.39 8.74 0.00 0.00 0.00 17:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 11.07 8.76 259.03 1.13 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 04/21/20 _x86_64_ (4 CPU) 17:41:03 LINUX RESTART 17:42:01 CPU %user %nice %system %iowait %steal %idle 17:43:01 all 0.19 0.00 0.10 0.00 0.00 99.72 17:43:01 0 0.08 0.00 0.12 0.00 0.00 99.80 17:43:01 1 0.12 0.00 0.13 0.00 0.00 99.75 17:43:01 2 0.53 0.00 0.10 0.00 0.02 99.35 17:43:01 3 0.05 0.00 0.03 0.00 0.00 99.92 17:44:01 all 0.18 0.00 0.06 0.00 0.00 99.75 17:44:01 0 0.40 0.00 0.07 0.00 0.02 99.52 17:44:01 1 0.13 0.00 0.08 0.00 0.00 99.78 17:44:01 2 0.10 0.00 0.03 0.00 0.00 99.87 17:44:01 3 0.07 0.00 0.07 0.00 0.00 99.87 17:45:01 all 0.20 0.00 0.07 0.00 0.00 99.73 17:45:01 0 0.47 0.00 0.07 0.00 0.00 99.47 17:45:01 1 0.08 0.00 0.08 0.00 0.00 99.83 17:45:01 2 0.18 0.00 0.08 0.00 0.00 99.73 17:45:01 3 0.07 0.00 0.03 0.00 0.00 99.90 17:46:01 all 0.18 0.00 0.06 0.00 0.00 99.75 17:46:01 0 0.05 0.00 0.05 0.00 0.00 99.90 17:46:01 1 0.12 0.00 0.07 0.00 0.02 99.80 17:46:01 2 0.55 0.00 0.07 0.00 0.00 99.38 17:46:01 3 0.03 0.00 0.05 0.00 0.02 99.90 17:47:01 all 0.19 0.00 0.05 0.00 0.00 99.75 17:47:01 0 0.03 0.00 0.03 0.00 0.00 99.93 17:47:01 1 0.07 0.00 0.07 0.00 0.00 99.87 17:47:01 2 0.57 0.00 0.08 0.00 0.00 99.35 17:47:01 3 0.08 0.00 0.08 0.00 0.00 99.83 17:48:01 all 0.21 0.00 0.05 0.00 0.00 99.74 17:48:01 0 0.12 0.00 0.05 0.00 0.00 99.83 17:48:01 1 0.08 0.00 0.08 0.00 0.00 99.83 17:48:01 2 0.55 0.00 0.02 0.00 0.00 99.43 17:48:01 3 0.08 0.00 0.02 0.00 0.00 99.90 17:49:01 all 0.17 0.00 0.06 0.00 0.00 99.77 17:49:01 0 0.05 0.00 0.05 0.00 0.00 99.90 17:49:01 1 0.05 0.00 0.03 0.00 0.00 99.92 17:49:01 2 0.55 0.00 0.12 0.00 0.00 99.33 17:49:01 3 0.05 0.00 0.03 0.00 0.00 99.92 17:50:02 all 0.10 0.00 0.05 0.00 0.00 99.85 17:50:02 0 0.07 0.00 0.03 0.00 0.00 99.90 17:50:02 1 0.07 0.00 0.03 0.00 0.00 99.90 17:50:02 2 0.10 0.00 0.05 0.00 0.02 99.83 17:50:02 3 0.13 0.00 0.08 0.00 0.00 99.78 17:51:01 all 3.15 0.00 1.68 1.26 0.01 93.89 17:51:01 0 3.18 0.00 1.80 0.95 0.02 94.05 17:51:01 1 2.67 0.00 1.75 0.43 0.02 95.13 17:51:01 2 4.00 0.00 1.79 1.91 0.00 92.30 17:51:01 3 2.76 0.00 1.38 1.75 0.00 94.11 Average: all 0.50 0.00 0.24 0.14 0.00 99.12 Average: 0 0.49 0.00 0.25 0.10 0.00 99.16 Average: 1 0.37 0.00 0.26 0.05 0.00 99.32 Average: 2 0.78 0.00 0.26 0.21 0.00 98.75 Average: 3 0.36 0.00 0.19 0.19 0.00 99.25