---> uname -a: Linux 8f3190531abd 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% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_device-modbus-go_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_device-modbus-go_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 865 97 0 873 929 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) 08/12/20 _x86_64_ (4 CPU) 06:56:40 LINUX RESTART 06:57:01 tps rtps wtps bread/s bwrtn/s 06:58:01 190.78 100.07 90.71 11843.31 40281.52 06:59:01 2.40 0.00 2.40 0.00 51.00 07:00:01 0.45 0.00 0.45 0.00 7.16 07:01:01 0.37 0.02 0.35 0.13 4.90 07:02:01 0.42 0.12 0.30 2.13 6.36 07:03:01 0.37 0.00 0.37 0.00 4.45 07:04:01 0.30 0.02 0.28 0.13 3.23 07:05:01 0.22 0.00 0.22 0.00 2.18 07:06:02 0.25 0.00 0.25 0.00 3.81 07:07:01 235.90 149.64 86.25 6668.74 31682.44 07:08:01 432.59 262.55 170.04 6626.90 32410.42 Average: 78.34 46.44 31.90 2279.80 9465.99 06:57:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:58:01 176480 1705076 90.62 2620 1126648 1121656 38.28 414892 1130188 116 06:59:01 182584 1698972 90.30 2620 1126680 1080092 36.86 413564 1126800 16 07:00:01 182080 1699476 90.32 2620 1126688 1080260 36.87 414520 1126792 20 07:01:01 181660 1699896 90.35 2620 1126688 1082436 36.94 414228 1126788 8 07:02:01 179148 1702408 90.48 2620 1126832 1080756 36.88 422876 1120668 8 07:03:01 179924 1701632 90.44 2620 1126836 1080684 36.88 422516 1120668 8 07:04:01 180444 1701112 90.41 2620 1126844 1080600 36.88 421968 1120668 8 07:05:01 180664 1700892 90.40 2620 1126848 1080600 36.88 417988 1124652 8 07:06:02 179188 1702368 90.48 2620 1126856 1080816 36.89 419172 1124652 20 07:07:01 128552 1753004 93.17 2620 1097868 1281968 43.75 542208 1011168 8 07:08:01 90292 1791264 95.20 1492 1025056 1226128 41.85 603884 879332 472 Average: 167365 1714191 91.10 2517 1114895 1116000 38.09 446165 1092034 63 06:57:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 06:58:01 eth0 445.56 264.56 1045.74 86.81 0.00 0.00 0.00 06:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:58:01 docker0 1.53 1.35 0.29 3.30 0.00 0.00 0.00 06:59:01 eth0 0.75 0.08 0.06 0.02 0.00 0.00 0.00 06:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:00:01 eth0 1.67 1.20 1.23 0.26 0.00 0.00 0.00 07:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:01:01 eth0 0.55 0.08 0.06 0.01 0.00 0.00 0.00 07:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:02:01 eth0 0.45 0.38 0.27 0.20 0.00 0.00 0.00 07:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:03:01 eth0 0.28 0.20 0.14 0.07 0.00 0.00 0.00 07:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:04:01 eth0 0.45 0.08 0.02 0.01 0.00 0.00 0.00 07:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:05:01 eth0 0.62 0.08 0.06 0.01 0.00 0.00 0.00 07:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:06:02 eth0 0.52 0.50 0.27 0.21 0.00 0.00 0.00 07:06:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:06:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:07:01 eth0 147.48 110.33 3884.80 16.17 0.00 0.00 0.00 07:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:07:01 docker0 23.30 23.59 2.55 51.45 0.00 0.00 0.00 07:08:01 veth624925f 0.07 0.15 0.00 0.02 0.00 0.00 0.00 07:08:01 eth0 815.96 529.39 8317.44 185.38 0.00 0.00 0.00 07:08:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 07:08:01 docker0 26.10 25.88 3.08 54.50 0.00 0.00 0.00 Average: veth624925f 0.01 0.01 0.00 0.00 0.00 0.00 0.00 Average: eth0 74.33 48.22 757.63 16.89 0.00 0.00 0.00 Average: lo 0.01 0.01 0.00 0.00 0.00 0.00 0.00 Average: docker0 2.38 2.36 0.28 4.96 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) 08/12/20 _x86_64_ (4 CPU) 06:56:40 LINUX RESTART 06:57:01 CPU %user %nice %system %iowait %steal %idle 06:58:01 all 15.66 0.00 8.74 7.61 0.04 67.96 06:58:01 0 15.33 0.00 8.72 6.25 0.03 69.66 06:58:01 1 15.16 0.00 8.02 11.64 0.07 65.11 06:58:01 2 15.81 0.00 9.09 6.20 0.02 68.87 06:58:01 3 16.34 0.00 9.08 6.33 0.03 68.22 06:59:01 all 0.15 0.00 0.04 0.00 0.00 99.81 06:59:01 0 0.02 0.00 0.03 0.00 0.00 99.95 06:59:01 1 0.45 0.00 0.07 0.00 0.00 99.48 06:59:01 2 0.08 0.00 0.05 0.00 0.00 99.87 06:59:01 3 0.03 0.00 0.02 0.00 0.00 99.95 07:00:01 all 0.14 0.00 0.04 0.00 0.00 99.82 07:00:01 0 0.03 0.00 0.03 0.00 0.00 99.93 07:00:01 1 0.45 0.00 0.03 0.00 0.00 99.52 07:00:01 2 0.07 0.00 0.05 0.00 0.00 99.88 07:00:01 3 0.03 0.00 0.02 0.00 0.00 99.95 07:01:01 all 0.16 0.00 0.03 0.00 0.00 99.81 07:01:01 0 0.05 0.00 0.03 0.00 0.00 99.92 07:01:01 1 0.52 0.00 0.02 0.00 0.00 99.47 07:01:01 2 0.03 0.00 0.03 0.00 0.00 99.93 07:01:01 3 0.03 0.00 0.03 0.00 0.00 99.93 07:02:01 all 0.17 0.00 0.05 0.00 0.00 99.78 07:02:01 0 0.03 0.00 0.03 0.00 0.00 99.93 07:02:01 1 0.03 0.00 0.07 0.00 0.00 99.90 07:02:01 2 0.57 0.00 0.05 0.00 0.00 99.38 07:02:01 3 0.03 0.00 0.03 0.00 0.00 99.93 07:03:01 all 0.16 0.00 0.05 0.00 0.00 99.79 07:03:01 0 0.02 0.00 0.02 0.00 0.00 99.97 07:03:01 1 0.35 0.00 0.15 0.00 0.00 99.50 07:03:01 2 0.20 0.00 0.02 0.00 0.00 99.78 07:03:01 3 0.07 0.00 0.02 0.00 0.00 99.92 07:04:01 all 0.15 0.00 0.03 0.00 0.00 99.82 07:04:01 0 0.03 0.00 0.05 0.00 0.00 99.92 07:04:01 1 0.52 0.00 0.03 0.00 0.00 99.45 07:04:01 2 0.03 0.00 0.02 0.02 0.02 99.92 07:04:01 3 0.05 0.00 0.05 0.00 0.00 99.90 07:05:01 all 0.13 0.00 0.03 0.00 0.00 99.85 07:05:01 0 0.02 0.00 0.02 0.00 0.00 99.97 07:05:01 1 0.03 0.00 0.03 0.00 0.00 99.93 07:05:01 2 0.02 0.00 0.02 0.00 0.00 99.97 07:05:01 3 0.43 0.00 0.03 0.00 0.00 99.53 07:06:02 all 0.15 0.00 0.02 0.00 0.00 99.83 07:06:02 0 0.02 0.00 0.02 0.00 0.00 99.97 07:06:02 1 0.03 0.00 0.03 0.00 0.00 99.93 07:06:02 2 0.03 0.00 0.00 0.00 0.00 99.97 07:06:02 3 0.53 0.00 0.03 0.00 0.00 99.43 07:07:01 all 7.40 0.00 4.54 2.01 0.02 86.03 07:07:01 0 6.77 0.00 4.26 2.56 0.02 86.39 07:07:01 1 7.80 0.00 4.62 2.46 0.02 85.11 07:07:01 2 7.85 0.00 4.46 1.40 0.02 86.27 07:07:01 3 7.19 0.00 4.79 1.61 0.05 86.36 07:08:01 all 10.55 2.56 18.53 11.28 0.06 57.03 07:08:01 0 10.11 2.54 18.36 11.50 0.07 57.41 07:08:01 1 10.71 2.70 18.74 11.17 0.05 56.62 07:08:01 2 10.62 2.54 18.22 12.11 0.05 56.46 07:08:01 3 10.74 2.42 18.82 10.33 0.05 57.64 Average: all 3.13 0.23 2.88 1.88 0.01 91.86 Average: 0 2.92 0.23 2.84 1.83 0.01 92.17 Average: 1 3.25 0.24 2.86 2.28 0.01 91.36 Average: 2 3.18 0.23 2.88 1.78 0.01 91.92 Average: 3 3.19 0.22 2.95 1.64 0.01 92.00