---> uname -a: Linux 83d983cec43d 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 633 123 0 1079 1098 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) 07:53:21 LINUX RESTART 07:54:01 tps rtps wtps bread/s bwrtn/s 07:55:01 56.39 15.05 41.34 4932.22 4676.33 07:56:01 1.67 0.00 1.67 0.00 28.56 07:57:01 0.42 0.00 0.42 0.00 6.40 07:58:01 0.23 0.00 0.23 0.00 2.83 07:59:01 0.23 0.00 0.23 0.00 3.30 08:00:01 0.33 0.00 0.33 0.00 4.23 08:01:01 0.27 0.03 0.23 0.27 2.16 08:02:01 0.42 0.08 0.33 1.60 6.21 08:03:01 0.27 0.00 0.27 0.00 3.30 08:04:02 0.18 0.00 0.18 0.00 2.03 08:05:01 0.42 0.20 0.22 15.72 3.00 Average: 5.54 1.40 4.14 450.89 431.64 07:54:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:55:01 168828 1712728 91.03 2620 1160092 1115960 38.09 415312 1137604 20 07:56:01 173220 1708336 90.79 2620 1160096 1084232 37.00 413736 1134936 8 07:57:01 172568 1708988 90.83 2620 1160104 1084448 37.01 415016 1134940 8 07:58:01 171592 1709964 90.88 2620 1160104 1084424 37.01 416488 1134332 8 07:59:01 172412 1709144 90.84 2620 1160108 1084316 37.01 423236 1127120 16 08:00:01 172836 1708720 90.81 2620 1160116 1084280 37.00 423084 1127120 12 08:01:01 171776 1709780 90.87 2620 1160124 1086704 37.09 423584 1127120 8 08:02:01 171348 1710208 90.89 2620 1160252 1084932 37.03 416360 1135020 8 08:03:01 172652 1708904 90.82 2620 1160260 1084740 37.02 415216 1135024 12 08:04:02 169828 1711728 90.97 2620 1160264 1084812 37.02 415088 1138308 16 08:05:01 161684 1719872 91.41 2620 1160752 1086532 37.08 417372 1138668 44 Average: 170795 1710761 90.92 2620 1160207 1087762 37.12 417681 1133654 15 07:54:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 07:55:01 eth0 249.52 162.13 648.36 70.17 0.00 0.00 0.00 07:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:55:01 docker0 3.18 2.06 0.41 3.69 0.00 0.00 0.00 07:56:01 eth0 0.72 0.00 0.06 0.00 0.00 0.00 0.00 07:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:57:01 eth0 0.78 0.40 0.33 0.21 0.00 0.00 0.00 07:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:58:01 eth0 0.65 0.38 0.29 0.20 0.00 0.00 0.00 07:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:59:01 eth0 0.18 0.15 0.08 0.04 0.00 0.00 0.00 07:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:00:01 eth0 0.23 0.22 0.09 0.04 0.00 0.00 0.00 08:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:01:01 eth0 1.28 0.08 0.12 0.01 0.00 0.00 0.00 08:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:02:01 eth0 0.85 0.65 0.53 0.37 0.00 0.00 0.00 08:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:03:01 eth0 0.10 0.08 0.01 0.04 0.00 0.00 0.00 08:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:04:02 eth0 0.70 0.15 0.13 0.04 0.00 0.00 0.00 08:04:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:04:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:05:01 eth0 3.52 2.24 3.76 1.16 0.00 0.00 0.00 08:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 23.55 15.16 59.55 6.58 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.29 0.19 0.04 0.34 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) 07:53:21 LINUX RESTART 07:54:01 CPU %user %nice %system %iowait %steal %idle 07:55:01 all 5.07 0.00 2.78 2.53 0.01 89.61 07:55:01 0 4.98 0.00 2.65 0.70 0.02 91.66 07:55:01 1 5.67 0.00 3.04 3.90 0.00 87.40 07:55:01 2 5.02 0.00 2.98 1.92 0.02 90.07 07:55:01 3 4.63 0.00 2.45 3.59 0.02 89.32 07:56:01 all 0.12 0.00 0.05 0.00 0.00 99.84 07:56:01 0 0.05 0.00 0.05 0.00 0.00 99.90 07:56:01 1 0.38 0.00 0.05 0.00 0.00 99.57 07:56:01 2 0.02 0.00 0.03 0.00 0.00 99.95 07:56:01 3 0.02 0.00 0.03 0.00 0.00 99.95 07:57:01 all 0.15 0.00 0.03 0.00 0.00 99.81 07:57:01 0 0.07 0.00 0.03 0.00 0.00 99.90 07:57:01 1 0.48 0.00 0.02 0.00 0.00 99.50 07:57:01 2 0.02 0.00 0.03 0.00 0.00 99.95 07:57:01 3 0.05 0.00 0.02 0.00 0.00 99.93 07:58:01 all 0.15 0.00 0.03 0.00 0.00 99.82 07:58:01 0 0.03 0.00 0.05 0.00 0.00 99.92 07:58:01 1 0.52 0.00 0.03 0.00 0.00 99.45 07:58:01 2 0.05 0.00 0.03 0.00 0.00 99.92 07:58:01 3 0.00 0.00 0.03 0.00 0.00 99.97 07:59:01 all 0.16 0.00 0.05 0.00 0.00 99.78 07:59:01 0 0.05 0.00 0.13 0.00 0.00 99.82 07:59:01 1 0.52 0.00 0.03 0.00 0.00 99.45 07:59:01 2 0.03 0.00 0.02 0.00 0.00 99.95 07:59:01 3 0.05 0.00 0.02 0.00 0.00 99.93 08:00:01 all 0.10 0.00 0.05 0.00 0.00 99.85 08:00:01 0 0.02 0.00 0.07 0.00 0.00 99.92 08:00:01 1 0.33 0.00 0.08 0.00 0.00 99.58 08:00:01 2 0.03 0.00 0.05 0.00 0.00 99.92 08:00:01 3 0.02 0.00 0.02 0.00 0.00 99.97 08:01:01 all 0.04 0.00 0.05 0.00 0.00 99.92 08:01:01 0 0.02 0.00 0.05 0.00 0.00 99.93 08:01:01 1 0.03 0.00 0.05 0.00 0.00 99.92 08:01:01 2 0.07 0.00 0.05 0.00 0.00 99.88 08:01:01 3 0.03 0.00 0.05 0.00 0.00 99.92 08:02:01 all 0.16 0.00 0.04 0.00 0.00 99.79 08:02:01 0 0.05 0.00 0.02 0.00 0.00 99.93 08:02:01 1 0.55 0.00 0.05 0.00 0.00 99.40 08:02:01 2 0.03 0.00 0.05 0.00 0.00 99.92 08:02:01 3 0.02 0.00 0.03 0.02 0.00 99.93 08:03:01 all 0.15 0.00 0.02 0.00 0.00 99.83 08:03:01 0 0.03 0.00 0.02 0.00 0.00 99.95 08:03:01 1 0.53 0.00 0.02 0.00 0.02 99.43 08:03:01 2 0.03 0.00 0.03 0.00 0.00 99.93 08:03:01 3 0.02 0.00 0.02 0.00 0.00 99.97 08:04:02 all 0.15 0.00 0.03 0.00 0.00 99.81 08:04:02 0 0.02 0.00 0.03 0.00 0.00 99.95 08:04:02 1 0.50 0.00 0.02 0.00 0.00 99.48 08:04:02 2 0.03 0.00 0.05 0.00 0.00 99.92 08:04:02 3 0.02 0.00 0.03 0.00 0.00 99.95 08:05:01 all 0.23 0.00 0.09 0.00 0.00 99.67 08:05:01 0 0.14 0.00 0.10 0.00 0.00 99.76 08:05:01 1 0.56 0.00 0.07 0.00 0.00 99.37 08:05:01 2 0.12 0.00 0.07 0.02 0.00 99.80 08:05:01 3 0.12 0.00 0.12 0.00 0.00 99.76 Average: all 0.59 0.00 0.29 0.23 0.00 98.89 Average: 0 0.49 0.00 0.29 0.06 0.00 99.15 Average: 1 0.92 0.00 0.31 0.35 0.00 98.42 Average: 2 0.49 0.00 0.31 0.18 0.00 99.02 Average: 3 0.45 0.00 0.26 0.33 0.00 98.97