---> uname -a: Linux 4a773b90559f 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: 2933.436 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% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-159 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-159@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 666 132 0 1038 1065 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) 07/22/20 _x86_64_ (4 CPU) 04:59:24 LINUX RESTART 05:00:02 tps rtps wtps bread/s bwrtn/s 05:01:01 59.17 15.09 44.08 5030.80 4830.00 05:02:01 1.71 0.08 1.63 1.60 29.04 05:03:01 0.25 0.00 0.25 0.00 2.45 05:04:01 0.18 0.00 0.18 0.00 2.02 05:05:01 0.17 0.00 0.17 0.00 1.82 05:06:02 0.27 0.00 0.27 0.00 3.25 05:07:01 0.37 0.02 0.36 0.14 3.71 05:08:01 0.45 0.00 0.45 0.00 5.61 05:09:01 0.15 0.00 0.15 0.00 1.88 05:10:01 0.35 0.00 0.35 0.00 3.36 05:11:01 0.55 0.00 0.55 0.00 6.64 Average: 5.72 1.36 4.35 451.68 438.95 05:00:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:01:01 160836 1720720 91.45 2620 1133504 1129248 38.54 435728 1124452 12 05:02:01 168832 1712724 91.03 2620 1133648 1073852 36.65 432772 1121060 8 05:03:01 169172 1712384 91.01 2620 1133652 1073852 36.65 432776 1121060 8 05:04:01 166500 1715056 91.15 2620 1133656 1074032 36.65 435556 1120484 8 05:05:01 166556 1715000 91.15 2620 1133660 1074080 36.66 441312 1114916 12 05:06:02 167396 1714160 91.10 2620 1133696 1073876 36.65 440256 1114896 20 05:07:01 167856 1713700 91.08 2620 1133672 1073852 36.65 440176 1114896 8 05:08:01 167988 1713568 91.07 2620 1133676 1073852 36.65 431880 1123088 8 05:09:01 167816 1713740 91.08 2620 1133684 1073852 36.65 432044 1123084 16 05:10:01 165836 1715720 91.19 2620 1133688 1073972 36.65 432384 1125136 20 05:11:01 165720 1715836 91.19 2620 1133692 1073948 36.65 432028 1125136 12 Average: 166773 1714783 91.14 2620 1133657 1078947 36.82 435174 1120746 12 05:00:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 05:01:01 eth0 260.96 145.31 697.61 67.91 0.00 0.00 0.00 05:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:01:01 docker0 2.03 1.68 0.32 3.44 0.00 0.00 0.00 05:02:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 05:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:03:01 eth0 0.50 0.08 0.05 0.01 0.00 0.00 0.00 05:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:04:01 eth0 1.50 0.37 0.37 0.20 0.00 0.00 0.00 05:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:05:01 eth0 1.05 0.77 0.61 0.44 0.00 0.00 0.00 05:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:06:02 eth0 0.17 0.12 0.07 0.04 0.00 0.00 0.00 05:06:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:06:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:07:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 05:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:08:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 05:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:09:01 eth0 0.12 0.08 0.01 0.01 0.00 0.00 0.00 05:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:10:01 eth0 0.18 0.15 0.08 0.04 0.00 0.00 0.00 05:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:11:01 eth0 0.20 0.17 0.07 0.04 0.00 0.00 0.00 05:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 23.79 13.22 62.73 6.17 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 0.15 0.03 0.31 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) 07/22/20 _x86_64_ (4 CPU) 04:59:24 LINUX RESTART 05:00:02 CPU %user %nice %system %iowait %steal %idle 05:01:01 all 7.32 0.00 2.28 1.83 0.25 88.33 05:01:01 0 6.76 0.00 3.10 2.41 0.24 87.49 05:01:01 1 7.57 0.00 2.39 1.93 0.21 87.90 05:01:01 2 9.44 0.00 1.50 1.43 0.17 87.46 05:01:01 3 5.50 0.00 2.10 1.52 0.34 90.54 05:02:01 all 0.17 0.00 0.05 0.00 0.01 99.78 05:02:01 0 0.53 0.00 0.07 0.00 0.02 99.38 05:02:01 1 0.05 0.00 0.05 0.02 0.02 99.87 05:02:01 2 0.05 0.00 0.03 0.00 0.00 99.92 05:02:01 3 0.05 0.00 0.05 0.00 0.02 99.88 05:03:01 all 0.10 0.00 0.03 0.00 0.00 99.86 05:03:01 0 0.25 0.00 0.07 0.00 0.00 99.68 05:03:01 1 0.05 0.00 0.02 0.00 0.00 99.93 05:03:01 2 0.03 0.00 0.02 0.00 0.02 99.93 05:03:01 3 0.07 0.00 0.02 0.00 0.02 99.90 05:04:01 all 0.15 0.00 0.03 0.00 0.00 99.82 05:04:01 0 0.50 0.00 0.02 0.00 0.02 99.47 05:04:01 1 0.05 0.00 0.02 0.00 0.00 99.93 05:04:01 2 0.03 0.00 0.03 0.00 0.00 99.93 05:04:01 3 0.03 0.00 0.03 0.00 0.00 99.93 05:05:01 all 0.16 0.00 0.05 0.00 0.00 99.79 05:05:01 0 0.12 0.00 0.02 0.00 0.00 99.87 05:05:01 1 0.07 0.00 0.03 0.00 0.00 99.90 05:05:01 2 0.45 0.00 0.03 0.00 0.00 99.52 05:05:01 3 0.03 0.00 0.10 0.00 0.02 99.85 05:06:02 all 0.15 0.00 0.04 0.00 0.00 99.81 05:06:02 0 0.02 0.00 0.02 0.00 0.00 99.97 05:06:02 1 0.05 0.00 0.05 0.00 0.02 99.88 05:06:02 2 0.50 0.00 0.02 0.00 0.02 99.47 05:06:02 3 0.02 0.00 0.08 0.00 0.00 99.90 05:07:01 all 0.15 0.00 0.02 0.00 0.01 99.82 05:07:01 0 0.02 0.00 0.02 0.00 0.00 99.97 05:07:01 1 0.07 0.00 0.07 0.00 0.02 99.85 05:07:01 2 0.51 0.00 0.00 0.00 0.00 99.49 05:07:01 3 0.03 0.00 0.02 0.00 0.00 99.95 05:08:01 all 0.15 0.00 0.03 0.00 0.00 99.82 05:08:01 0 0.00 0.00 0.03 0.00 0.00 99.97 05:08:01 1 0.05 0.00 0.05 0.00 0.00 99.90 05:08:01 2 0.50 0.00 0.02 0.00 0.00 99.48 05:08:01 3 0.02 0.00 0.02 0.00 0.00 99.97 05:09:01 all 0.16 0.00 0.02 0.00 0.01 99.81 05:09:01 0 0.03 0.00 0.02 0.00 0.00 99.95 05:09:01 1 0.07 0.00 0.03 0.00 0.02 99.88 05:09:01 2 0.52 0.00 0.02 0.00 0.00 99.47 05:09:01 3 0.03 0.00 0.00 0.00 0.00 99.97 05:10:01 all 0.11 0.00 0.04 0.00 0.00 99.85 05:10:01 0 0.03 0.00 0.03 0.00 0.00 99.93 05:10:01 1 0.07 0.00 0.02 0.00 0.00 99.92 05:10:01 2 0.32 0.00 0.08 0.00 0.02 99.58 05:10:01 3 0.03 0.00 0.03 0.00 0.00 99.93 05:11:01 all 0.05 0.00 0.03 0.00 0.00 99.91 05:11:01 0 0.03 0.00 0.03 0.00 0.00 99.93 05:11:01 1 0.03 0.00 0.03 0.00 0.02 99.92 05:11:01 2 0.10 0.00 0.03 0.00 0.00 99.87 05:11:01 3 0.05 0.00 0.02 0.00 0.00 99.93 Average: all 0.78 0.00 0.23 0.16 0.03 98.80 Average: 0 0.74 0.00 0.30 0.21 0.02 98.72 Average: 1 0.72 0.00 0.25 0.17 0.03 98.83 Average: 2 1.11 0.00 0.16 0.13 0.02 98.58 Average: 3 0.52 0.00 0.22 0.14 0.03 99.08