---> uname -a: Linux ecb5921d46cf 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 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/xfoundry_device-modbus-go_PR-162 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-162@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 667 120 0 1049 1064 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) 09/02/20 _x86_64_ (4 CPU) 03:36:02 LINUX RESTART 03:37:01 tps rtps wtps bread/s bwrtn/s 03:38:01 5.94 2.15 3.80 124.28 85.93 03:39:01 0.18 0.00 0.18 0.00 1.88 03:40:01 0.37 0.00 0.37 0.00 5.30 03:41:01 0.23 0.00 0.23 0.00 3.18 03:42:01 0.22 0.00 0.22 0.00 3.25 03:43:01 0.47 0.02 0.45 0.13 6.53 03:44:01 0.60 0.00 0.60 0.00 6.13 03:45:01 0.58 0.00 0.58 0.00 6.40 03:46:01 0.58 0.00 0.58 0.00 5.65 03:47:01 0.62 0.00 0.62 0.00 6.76 Average: 0.98 0.22 0.76 12.45 13.10 03:37:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:38:01 157684 1723872 91.62 2620 1140988 1118212 38.16 414808 1149200 16 03:39:01 162968 1718588 91.34 2620 1140992 1080376 36.87 418184 1141596 16 03:40:01 159924 1721632 91.50 2620 1141000 1080572 36.88 421000 1141592 16 03:41:01 158920 1722636 91.55 2620 1141000 1080572 36.88 422808 1140980 12 03:42:01 159732 1721824 91.51 2620 1141004 1080464 36.87 427452 1135852 12 03:43:01 159836 1721720 91.51 2620 1141016 1080416 36.87 427080 1135852 20 03:44:01 159340 1722216 91.53 2620 1141020 1080560 36.88 425144 1138708 8 03:45:01 159800 1721756 91.51 2620 1141028 1080792 36.89 424792 1138708 8 03:46:01 160044 1721512 91.49 2620 1141032 1080636 36.88 424184 1138708 8 03:47:01 159796 1721760 91.51 2620 1141040 1080720 36.88 414416 1148820 8 Average: 159804 1721752 91.51 2620 1141012 1084332 37.01 421987 1141002 12 03:37:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:38:01 eth0 20.53 16.80 16.74 27.96 0.00 0.00 0.00 03:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:38:01 docker0 1.85 1.33 0.34 3.70 0.00 0.00 0.00 03:39:01 eth0 1.33 0.45 0.77 0.03 0.00 0.00 0.00 03:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:40:01 eth0 1.17 0.45 0.43 0.21 0.00 0.00 0.00 03:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:41:01 eth0 0.52 0.43 0.27 0.21 0.00 0.00 0.00 03:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:42:01 eth0 0.18 0.13 0.08 0.07 0.00 0.00 0.00 03:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:43:01 eth0 0.85 0.12 0.12 0.01 0.00 0.00 0.00 03:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:44:01 eth0 1.02 0.37 0.36 0.14 0.00 0.00 0.00 03:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:45:01 eth0 0.52 0.33 0.27 0.26 0.00 0.00 0.00 03:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:46:01 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 03:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:47:01 eth0 0.32 0.17 0.14 0.07 0.00 0.00 0.00 03:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.66 1.93 1.92 2.90 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.18 0.13 0.03 0.37 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) 09/02/20 _x86_64_ (4 CPU) 03:36:02 LINUX RESTART 03:37:01 CPU %user %nice %system %iowait %steal %idle 03:38:01 all 0.95 0.00 0.29 0.04 0.00 98.72 03:38:01 0 0.75 0.00 0.35 0.08 0.00 98.81 03:38:01 1 0.90 0.00 0.42 0.05 0.00 98.63 03:38:01 2 0.92 0.00 0.25 0.02 0.00 98.82 03:38:01 3 1.22 0.00 0.13 0.00 0.02 98.63 03:39:01 all 0.16 0.00 0.02 0.00 0.00 99.81 03:39:01 0 0.52 0.00 0.02 0.00 0.00 99.47 03:39:01 1 0.03 0.00 0.02 0.00 0.00 99.95 03:39:01 2 0.07 0.00 0.02 0.00 0.00 99.92 03:39:01 3 0.03 0.00 0.03 0.00 0.00 99.93 03:40:01 all 0.17 0.00 0.02 0.00 0.00 99.82 03:40:01 0 0.53 0.00 0.02 0.00 0.00 99.45 03:40:01 1 0.07 0.00 0.02 0.00 0.00 99.92 03:40:01 2 0.03 0.00 0.03 0.00 0.00 99.93 03:40:01 3 0.03 0.00 0.02 0.00 0.00 99.95 03:41:01 all 0.07 0.00 0.03 0.00 0.00 99.90 03:41:01 0 0.17 0.00 0.05 0.00 0.00 99.78 03:41:01 1 0.05 0.00 0.03 0.00 0.00 99.92 03:41:01 2 0.02 0.00 0.00 0.00 0.00 99.98 03:41:01 3 0.03 0.00 0.03 0.00 0.00 99.93 03:42:01 all 0.04 0.00 0.03 0.00 0.00 99.92 03:42:01 0 0.03 0.00 0.02 0.00 0.00 99.95 03:42:01 1 0.03 0.00 0.08 0.00 0.00 99.88 03:42:01 2 0.05 0.00 0.02 0.00 0.00 99.93 03:42:01 3 0.03 0.00 0.02 0.00 0.00 99.95 03:43:01 all 0.11 0.00 0.03 0.00 0.00 99.86 03:43:01 0 0.35 0.00 0.02 0.00 0.00 99.63 03:43:01 1 0.05 0.00 0.03 0.02 0.00 99.90 03:43:01 2 0.03 0.00 0.03 0.00 0.02 99.92 03:43:01 3 0.00 0.00 0.02 0.00 0.00 99.98 03:44:01 all 0.16 0.00 0.02 0.00 0.00 99.82 03:44:01 0 0.52 0.00 0.03 0.00 0.00 99.45 03:44:01 1 0.05 0.00 0.02 0.00 0.00 99.93 03:44:01 2 0.05 0.00 0.03 0.00 0.00 99.92 03:44:01 3 0.02 0.00 0.02 0.00 0.00 99.97 03:45:01 all 0.15 0.00 0.02 0.00 0.00 99.82 03:45:01 0 0.52 0.00 0.02 0.00 0.00 99.47 03:45:01 1 0.02 0.00 0.03 0.00 0.00 99.95 03:45:01 2 0.07 0.00 0.05 0.00 0.00 99.88 03:45:01 3 0.02 0.00 0.02 0.00 0.00 99.97 03:46:01 all 0.16 0.00 0.02 0.00 0.00 99.82 03:46:01 0 0.52 0.00 0.00 0.00 0.00 99.48 03:46:01 1 0.03 0.00 0.02 0.00 0.02 99.93 03:46:01 2 0.07 0.00 0.03 0.00 0.00 99.90 03:46:01 3 0.03 0.00 0.02 0.00 0.00 99.95 03:47:01 all 0.15 0.00 0.02 0.00 0.00 99.83 03:47:01 0 0.52 0.00 0.02 0.00 0.00 99.47 03:47:01 1 0.02 0.00 0.02 0.00 0.00 99.97 03:47:01 2 0.05 0.00 0.03 0.00 0.02 99.90 03:47:01 3 0.02 0.00 0.02 0.00 0.00 99.97 Average: all 0.21 0.00 0.05 0.00 0.00 99.73 Average: 0 0.44 0.00 0.05 0.01 0.00 99.50 Average: 1 0.12 0.00 0.07 0.01 0.00 99.80 Average: 2 0.14 0.00 0.05 0.00 0.00 99.81 Average: 3 0.14 0.00 0.03 0.00 0.00 99.82