---> uname -a: Linux 2dd8b116a58d 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% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-166 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-166@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 635 116 0 1084 1095 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) 08/24/20 _x86_64_ (4 CPU) 08:05:45 LINUX RESTART 08:07:01 tps rtps wtps bread/s bwrtn/s 08:08:01 3.91 0.00 3.91 0.00 121.57 08:09:01 0.67 0.00 0.67 0.00 9.59 08:10:01 0.15 0.00 0.15 0.00 2.02 08:11:01 0.18 0.00 0.18 0.00 2.15 08:12:01 0.43 0.00 0.43 0.00 6.85 08:13:01 0.27 0.02 0.25 0.13 2.73 08:14:01 0.32 0.00 0.32 0.00 3.35 08:15:01 159.22 103.36 55.86 7927.27 19904.53 Average: 20.65 12.93 7.72 991.19 2507.27 08:07:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:08:01 177148 1704408 90.59 2620 1151080 1080264 36.87 388872 1154888 12 08:09:01 175588 1705968 90.67 2620 1151084 1080336 36.87 391676 1154392 12 08:10:01 174824 1706732 90.71 2620 1151092 1080532 36.88 392516 1154392 16 08:11:01 174740 1706816 90.71 2620 1151092 1080328 36.87 399692 1147208 12 08:12:01 174452 1707104 90.73 2620 1151096 1080412 36.87 411908 1135312 8 08:13:01 175052 1706504 90.70 2620 1151108 1080364 36.87 411804 1135312 8 08:14:01 175076 1706480 90.70 2620 1151108 1080328 36.87 401396 1145536 12 08:15:01 118500 1763056 93.70 2620 1108220 1237872 42.25 490156 1068848 436 Average: 168173 1713384 91.06 2620 1145735 1100055 37.54 411003 1136986 65 08:07:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:08:01 eth0 0.23 0.10 0.01 0.02 0.00 0.00 0.00 08:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:08:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:09:01 eth0 1.47 0.42 0.68 0.03 0.00 0.00 0.00 08:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:10:01 eth0 1.17 0.57 0.61 0.36 0.00 0.00 0.00 08:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:11:01 eth0 0.10 0.08 0.01 0.04 0.00 0.00 0.00 08:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:12:01 eth0 0.23 0.18 0.08 0.07 0.00 0.00 0.00 08:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:13:01 eth0 0.22 0.13 0.07 0.01 0.00 0.00 0.00 08:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:14:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 08:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:15:01 eth0 106.54 69.06 2335.77 12.38 0.00 0.00 0.00 08:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:15:01 veth7e5d474 0.07 0.13 0.00 0.01 0.00 0.00 0.00 08:15:01 docker0 1.88 1.58 0.33 3.49 0.00 0.00 0.00 Average: eth0 13.76 8.83 292.23 1.62 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth7e5d474 0.01 0.02 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.24 0.20 0.04 0.44 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) 08/24/20 _x86_64_ (4 CPU) 08:05:45 LINUX RESTART 08:07:01 CPU %user %nice %system %iowait %steal %idle 08:08:01 all 0.16 0.00 0.05 0.00 0.00 99.80 08:08:01 0 0.08 0.00 0.03 0.00 0.00 99.88 08:08:01 1 0.47 0.00 0.03 0.00 0.02 99.48 08:08:01 2 0.05 0.00 0.05 0.00 0.00 99.90 08:08:01 3 0.03 0.00 0.05 0.00 0.00 99.92 08:09:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:09:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:09:01 1 0.47 0.00 0.05 0.00 0.00 99.48 08:09:01 2 0.05 0.00 0.03 0.00 0.00 99.92 08:09:01 3 0.08 0.00 0.03 0.00 0.00 99.88 08:10:01 all 0.16 0.00 0.03 0.00 0.00 99.81 08:10:01 0 0.07 0.00 0.02 0.00 0.00 99.92 08:10:01 1 0.50 0.00 0.02 0.00 0.00 99.48 08:10:01 2 0.02 0.00 0.02 0.00 0.00 99.97 08:10:01 3 0.05 0.00 0.05 0.00 0.00 99.90 08:11:01 all 0.09 0.00 0.04 0.00 0.00 99.87 08:11:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:11:01 1 0.28 0.00 0.03 0.00 0.00 99.68 08:11:01 2 0.03 0.00 0.02 0.00 0.00 99.95 08:11:01 3 0.03 0.00 0.08 0.00 0.00 99.88 08:12:01 all 0.15 0.00 0.05 0.00 0.00 99.80 08:12:01 0 0.02 0.00 0.00 0.00 0.00 99.98 08:12:01 1 0.15 0.00 0.03 0.00 0.00 99.82 08:12:01 2 0.38 0.00 0.02 0.00 0.00 99.60 08:12:01 3 0.03 0.00 0.17 0.00 0.00 99.80 08:13:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:13:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:13:01 1 0.03 0.00 0.03 0.00 0.00 99.93 08:13:01 2 0.52 0.00 0.03 0.00 0.00 99.45 08:13:01 3 0.02 0.00 0.03 0.00 0.02 99.93 08:14:01 all 0.15 0.00 0.02 0.00 0.00 99.82 08:14:01 0 0.02 0.00 0.02 0.00 0.00 99.97 08:14:01 1 0.03 0.00 0.03 0.00 0.00 99.93 08:14:01 2 0.52 0.00 0.00 0.00 0.00 99.48 08:14:01 3 0.03 0.00 0.03 0.00 0.00 99.93 08:15:01 all 5.72 0.00 3.55 1.99 0.02 88.73 08:15:01 0 4.43 0.00 3.17 0.89 0.00 91.52 08:15:01 1 6.25 0.00 3.29 4.07 0.02 86.38 08:15:01 2 7.32 0.00 3.55 1.59 0.02 87.53 08:15:01 3 4.90 0.00 4.16 1.43 0.03 89.47 Average: all 0.84 0.00 0.47 0.25 0.00 98.44 Average: 0 0.58 0.00 0.41 0.11 0.00 98.90 Average: 1 1.02 0.00 0.44 0.50 0.00 98.03 Average: 2 1.11 0.00 0.46 0.20 0.00 98.23 Average: 3 0.64 0.00 0.57 0.18 0.01 98.60