---> uname -a: Linux 391226296fad 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 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% /w/workspace/xfoundry_device-modbus-go_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/xfoundry_device-modbus-go_master@tmp /dev/vda1 50.0G 8.5G 41.5G 17% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 782 115 0 939 984 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) 08/24/20 _x86_64_ (4 CPU) 11:22:32 LINUX RESTART 11:24:01 tps rtps wtps bread/s bwrtn/s 11:25:01 2.08 0.00 2.08 0.00 49.65 11:26:01 0.33 0.00 0.33 0.00 4.40 11:27:01 0.37 0.00 0.37 0.00 6.12 11:28:01 0.30 0.00 0.30 0.00 4.19 11:29:01 0.30 0.00 0.30 0.00 5.44 11:30:01 0.42 0.02 0.40 0.13 5.63 11:31:02 0.33 0.00 0.33 0.00 4.51 11:32:01 0.30 0.00 0.30 0.00 5.37 11:33:01 45.37 9.72 35.65 816.24 17907.20 11:34:01 206.91 138.45 68.46 5960.21 14103.90 11:35:01 194.65 69.78 124.88 3697.38 30312.57 11:36:01 125.51 61.55 63.96 5087.13 19401.83 Average: 48.22 23.36 24.85 1300.69 6836.49 11:24:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:25:01 172424 1709132 90.84 2620 1147828 1072228 36.59 437296 1113720 20 11:26:01 172292 1709264 90.84 2620 1147832 1072228 36.59 437716 1113428 8 11:27:01 169868 1711688 90.97 2620 1147892 1072480 36.60 440772 1112820 16 11:28:01 169316 1712240 91.00 2620 1147840 1072528 36.60 446512 1107484 8 11:29:01 170184 1711372 90.96 2620 1147848 1072336 36.60 446888 1106320 8 11:30:01 171004 1710552 90.91 2620 1147856 1072228 36.59 446340 1106316 8 11:31:02 171236 1710320 90.90 2620 1147856 1072228 36.59 440156 1112500 8 11:32:01 171244 1710312 90.90 2620 1147864 1072296 36.60 440036 1112500 8 11:33:01 197612 1683944 89.50 2620 1014632 1463724 49.95 478120 1015528 72280 11:34:01 170320 1711236 90.95 2596 1047492 1367376 46.67 578344 935764 44 11:35:01 89856 1791700 95.22 1728 1034940 1275320 43.52 627224 883700 476 11:36:01 76092 1805464 95.96 1508 987368 1592084 54.33 675556 837500 45520 Average: 158454 1723102 91.58 2451 1105604 1189755 40.60 491247 1046465 9867 11:24:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 11:25:01 eth0 0.22 0.07 0.01 0.01 0.00 0.00 0.00 11:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:26:01 eth0 0.67 0.08 0.06 0.01 0.00 0.00 0.00 11:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:27:01 eth0 1.88 1.33 3.06 0.27 0.00 0.00 0.00 11:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:28:01 eth0 0.37 0.33 0.26 0.20 0.00 0.00 0.00 11:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:29:01 eth0 0.28 0.20 0.14 0.07 0.00 0.00 0.00 11:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:30:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 11:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:31:02 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 11:31:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:31:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:32:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 11:32:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:32:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:33:01 eth0 129.68 65.56 3757.47 8.05 0.00 0.00 0.00 11:33:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:33:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:34:01 eth0 91.85 85.33 265.51 76.34 0.00 0.00 0.00 11:34:01 veth63fc9e1 0.17 0.18 0.02 0.09 0.00 0.00 0.00 11:34:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 11:34:01 docker0 27.92 27.40 3.20 55.89 0.00 0.00 0.00 11:35:01 veth14f5d90 0.13 0.20 0.01 0.02 0.00 0.00 0.00 11:35:01 eth0 643.59 427.78 8301.82 190.31 0.00 0.00 0.00 11:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:35:01 docker0 0.40 0.27 0.07 0.08 0.00 0.00 0.00 11:36:01 eth0 161.45 116.13 2551.56 68.51 0.00 0.00 0.00 11:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:36:01 docker0 22.62 34.30 1.37 186.04 0.00 0.00 0.00 Average: eth0 44.35 30.51 817.81 14.76 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 4.12 5.05 0.36 19.94 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) 11:22:32 LINUX RESTART 11:24:01 CPU %user %nice %system %iowait %steal %idle 11:25:01 all 0.17 0.00 0.07 0.00 0.14 99.61 11:25:01 0 0.45 0.00 0.08 0.00 0.20 99.27 11:25:01 1 0.10 0.00 0.07 0.00 0.12 99.72 11:25:01 2 0.10 0.00 0.08 0.00 0.17 99.65 11:25:01 3 0.07 0.00 0.03 0.00 0.05 99.85 11:26:01 all 0.14 0.00 0.04 0.00 0.20 99.63 11:26:01 0 0.07 0.00 0.03 0.00 0.43 99.47 11:26:01 1 0.08 0.00 0.07 0.00 0.15 99.70 11:26:01 2 0.33 0.00 0.05 0.00 0.18 99.43 11:26:01 3 0.05 0.00 0.02 0.00 0.05 99.88 11:27:01 all 0.11 0.00 0.06 0.00 0.33 99.50 11:27:01 0 0.32 0.00 0.07 0.00 0.32 99.30 11:27:01 1 0.03 0.00 0.05 0.00 0.27 99.65 11:27:01 2 0.05 0.00 0.07 0.00 0.56 99.32 11:27:01 3 0.03 0.00 0.05 0.00 0.17 99.75 11:28:01 all 0.10 0.00 0.06 0.00 0.38 99.46 11:28:01 0 0.17 0.00 0.03 0.00 0.22 99.58 11:28:01 1 0.03 0.00 0.05 0.00 0.35 99.57 11:28:01 2 0.18 0.00 0.07 0.00 0.66 99.09 11:28:01 3 0.03 0.00 0.12 0.00 0.28 99.57 11:29:01 all 0.13 0.00 0.05 0.00 0.35 99.48 11:29:01 0 0.02 0.00 0.03 0.00 0.20 99.75 11:29:01 1 0.40 0.00 0.02 0.00 0.33 99.25 11:29:01 2 0.03 0.00 0.03 0.00 0.27 99.67 11:29:01 3 0.05 0.00 0.10 0.00 0.60 99.25 11:30:01 all 0.13 0.00 0.03 0.00 0.09 99.74 11:30:01 0 0.03 0.00 0.02 0.02 0.07 99.87 11:30:01 1 0.43 0.00 0.07 0.00 0.23 99.27 11:30:01 2 0.05 0.00 0.05 0.00 0.05 99.85 11:30:01 3 0.03 0.00 0.03 0.00 0.02 99.92 11:31:02 all 0.12 0.00 0.03 0.00 0.15 99.69 11:31:02 0 0.03 0.00 0.02 0.00 0.07 99.88 11:31:02 1 0.37 0.00 0.03 0.00 0.10 99.50 11:31:02 2 0.08 0.00 0.05 0.00 0.38 99.48 11:31:02 3 0.02 0.00 0.02 0.00 0.05 99.92 11:32:01 all 0.10 0.00 0.04 0.00 0.10 99.76 11:32:01 0 0.03 0.00 0.03 0.00 0.02 99.92 11:32:01 1 0.08 0.00 0.05 0.00 0.19 99.68 11:32:01 2 0.25 0.00 0.02 0.00 0.05 99.68 11:32:01 3 0.02 0.00 0.03 0.00 0.15 99.80 11:33:01 all 3.38 0.00 2.14 0.08 6.61 87.79 11:33:01 0 3.32 0.00 1.46 0.02 7.31 87.90 11:33:01 1 3.23 0.00 2.01 0.17 6.61 87.98 11:33:01 2 3.50 0.00 2.21 0.03 6.34 87.92 11:33:01 3 3.45 0.00 2.93 0.10 6.19 87.34 11:34:01 all 4.13 0.00 3.78 2.06 13.68 76.35 11:34:01 0 4.30 0.00 3.52 1.82 14.20 76.17 11:34:01 1 3.77 0.00 3.72 1.88 13.48 77.15 11:34:01 2 3.66 0.00 3.71 2.92 13.20 76.51 11:34:01 3 4.82 0.00 4.16 1.61 13.81 75.59 11:35:01 all 5.96 0.00 5.72 1.89 14.93 71.50 11:35:01 0 5.24 0.00 5.62 1.71 15.79 71.64 11:35:01 1 5.40 0.00 4.27 2.20 14.96 73.17 11:35:01 2 6.11 0.00 6.19 2.39 14.04 71.28 11:35:01 3 7.14 0.00 6.86 1.23 14.91 69.86 11:36:01 all 6.26 0.00 4.89 1.45 12.93 74.47 11:36:01 0 9.05 0.00 5.32 1.45 14.00 70.18 11:36:01 1 4.98 0.00 5.00 0.66 13.23 76.13 11:36:01 2 4.52 0.00 4.34 0.98 11.92 78.25 11:36:01 3 6.52 0.00 4.92 2.71 12.58 73.27 Average: all 1.75 0.00 1.43 0.46 4.21 92.15 Average: 0 1.94 0.00 1.37 0.43 4.46 91.80 Average: 1 1.60 0.00 1.31 0.42 4.25 92.42 Average: 2 1.59 0.00 1.42 0.53 4.03 92.43 Average: 3 1.86 0.00 1.61 0.47 4.09 91.97