---> uname -a: Linux 6a3f7b3f55b7 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: 2933.442 BogoMIPS: 5866.88 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 647 114 0 1075 1084 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) 09:57:17 LINUX RESTART 09:58:02 tps rtps wtps bread/s bwrtn/s 09:59:01 62.73 16.20 46.53 5114.83 4945.70 10:00:01 1.28 0.00 1.28 0.00 18.05 10:01:01 0.27 0.02 0.25 0.13 3.90 10:02:01 0.48 0.12 0.37 2.13 5.94 10:03:01 0.25 0.00 0.25 0.00 2.70 10:04:01 0.27 0.00 0.27 0.00 3.91 10:05:01 0.28 0.02 0.27 0.13 3.60 10:06:01 0.22 0.00 0.22 0.00 2.30 10:07:01 0.18 0.00 0.18 0.00 2.30 Average: 7.23 1.79 5.44 560.48 546.44 09:58:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:59:01 176876 1704680 90.60 2620 1144476 1105048 37.71 426024 1119016 116 10:00:01 182152 1699404 90.32 2620 1144480 1070516 36.53 424540 1116056 8 10:01:01 178204 1703352 90.53 2620 1144488 1073036 36.62 428420 1116056 8 10:02:01 176508 1705048 90.62 2620 1144624 1071288 36.56 430100 1115592 8 10:03:01 177904 1703652 90.54 2620 1144632 1071024 36.55 431828 1113072 16 10:04:01 177316 1704240 90.58 2620 1144636 1071104 36.55 432568 1113036 8 10:05:01 177056 1704500 90.59 2620 1144648 1071204 36.56 433048 1113040 12 10:06:01 177668 1703888 90.56 2620 1144648 1071024 36.55 427128 1117964 8 10:07:01 177668 1703888 90.56 2620 1144656 1071024 36.55 427152 1117964 16 Average: 177928 1703628 90.54 2620 1144588 1075030 36.69 428979 1115755 22 09:58:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 09:59:01 eth0 373.85 215.72 861.02 80.26 0.00 0.00 0.00 09:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:59:01 docker0 1.61 1.35 0.31 3.56 0.00 0.00 0.00 10:00:01 eth0 0.45 0.02 0.03 0.00 0.00 0.00 0.00 10:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:01:01 eth0 2.66 1.07 2.30 0.22 0.00 0.00 0.00 10:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:02:01 eth0 0.42 0.32 0.26 0.23 0.00 0.00 0.00 10:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:03:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 10:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:04:01 eth0 0.63 0.18 0.17 0.07 0.00 0.00 0.00 10:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:05:01 eth0 0.78 0.38 0.34 0.20 0.00 0.00 0.00 10:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:06:01 eth0 0.10 0.10 0.01 0.04 0.00 0.00 0.00 10:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:07:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 10:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 41.53 23.88 94.65 8.88 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 0.39 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) 09:57:17 LINUX RESTART 09:58:02 CPU %user %nice %system %iowait %steal %idle 09:59:01 all 9.08 0.00 2.87 2.03 0.02 86.00 09:59:01 0 9.10 0.00 3.64 1.17 0.00 86.09 09:59:01 1 10.00 0.00 2.48 0.92 0.02 86.58 09:59:01 2 8.29 0.00 3.14 4.16 0.02 84.38 09:59:01 3 8.95 0.00 2.23 1.84 0.03 86.95 10:00:01 all 0.14 0.00 0.03 0.00 0.00 99.83 10:00:01 0 0.47 0.00 0.02 0.00 0.00 99.52 10:00:01 1 0.05 0.00 0.05 0.00 0.02 99.88 10:00:01 2 0.02 0.00 0.02 0.00 0.00 99.97 10:00:01 3 0.02 0.00 0.02 0.00 0.00 99.97 10:01:01 all 0.19 0.00 0.03 0.00 0.00 99.78 10:01:01 0 0.53 0.00 0.03 0.00 0.00 99.43 10:01:01 1 0.10 0.00 0.05 0.00 0.00 99.85 10:01:01 2 0.05 0.00 0.02 0.00 0.00 99.93 10:01:01 3 0.07 0.00 0.03 0.00 0.00 99.90 10:02:01 all 0.15 0.00 0.04 0.00 0.00 99.81 10:02:01 0 0.48 0.00 0.05 0.00 0.00 99.47 10:02:01 1 0.07 0.00 0.05 0.02 0.00 99.87 10:02:01 2 0.03 0.00 0.03 0.02 0.00 99.92 10:02:01 3 0.02 0.00 0.02 0.00 0.00 99.97 10:03:01 all 0.15 0.00 0.05 0.00 0.00 99.79 10:03:01 0 0.05 0.00 0.02 0.00 0.00 99.93 10:03:01 1 0.05 0.00 0.05 0.00 0.00 99.90 10:03:01 2 0.03 0.00 0.05 0.00 0.02 99.90 10:03:01 3 0.47 0.00 0.12 0.00 0.00 99.42 10:04:01 all 0.14 0.00 0.03 0.00 0.00 99.82 10:04:01 0 0.02 0.00 0.03 0.00 0.00 99.95 10:04:01 1 0.03 0.00 0.02 0.00 0.00 99.95 10:04:01 2 0.03 0.00 0.02 0.00 0.00 99.95 10:04:01 3 0.50 0.00 0.07 0.00 0.00 99.43 10:05:01 all 0.17 0.00 0.02 0.00 0.00 99.81 10:05:01 0 0.08 0.00 0.00 0.00 0.00 99.92 10:05:01 1 0.07 0.00 0.03 0.00 0.00 99.90 10:05:01 2 0.02 0.00 0.03 0.00 0.00 99.95 10:05:01 3 0.52 0.00 0.02 0.00 0.00 99.47 10:06:01 all 0.15 0.00 0.02 0.00 0.00 99.83 10:06:01 0 0.03 0.00 0.05 0.00 0.02 99.90 10:06:01 1 0.02 0.00 0.02 0.00 0.00 99.97 10:06:01 2 0.02 0.00 0.00 0.00 0.00 99.98 10:06:01 3 0.50 0.00 0.00 0.00 0.00 99.50 10:07:01 all 0.15 0.00 0.02 0.00 0.00 99.83 10:07:01 0 0.03 0.00 0.03 0.00 0.00 99.93 10:07:01 1 0.03 0.00 0.03 0.00 0.00 99.93 10:07:01 2 0.03 0.00 0.02 0.00 0.00 99.95 10:07:01 3 0.50 0.00 0.02 0.00 0.00 99.48 Average: all 1.13 0.00 0.34 0.22 0.00 98.31 Average: 0 1.18 0.00 0.42 0.13 0.00 98.26 Average: 1 1.14 0.00 0.30 0.10 0.00 98.45 Average: 2 0.93 0.00 0.36 0.46 0.00 98.24 Average: 3 1.26 0.00 0.27 0.20 0.00 98.26