---> uname -a: Linux ba9e55a3e10d 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 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-162 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-modbus-go_PR-162@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 634 121 0 1082 1098 Swap: 1023 0 1023 ---> 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) 08/18/20 _x86_64_ (4 CPU) 02:31:30 LINUX RESTART 02:32:01 tps rtps wtps bread/s bwrtn/s 02:33:01 81.77 36.72 45.06 7466.58 4869.04 02:34:01 1.63 0.00 1.63 0.00 27.09 02:35:01 0.23 0.00 0.23 0.00 3.20 02:36:01 0.23 0.00 0.23 0.00 2.85 02:37:01 0.27 0.00 0.27 0.00 3.55 02:38:01 0.35 0.00 0.35 0.00 4.40 02:39:01 0.25 0.02 0.23 0.13 2.16 02:40:01 0.23 0.00 0.23 0.00 3.35 02:41:02 0.28 0.00 0.28 0.00 2.86 Average: 9.48 4.08 5.39 830.08 546.79 02:32:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:33:01 182912 1698644 90.28 2620 1142160 1132548 38.65 381368 1157160 16 02:34:01 190064 1691492 89.90 2620 1142348 1079448 36.84 379280 1153428 8 02:35:01 188876 1692680 89.96 2620 1142352 1079676 36.85 380692 1153416 8 02:36:01 187388 1694168 90.04 2620 1142356 1079664 36.85 382704 1153176 8 02:37:01 188452 1693104 89.98 2620 1142360 1079448 36.84 391692 1143024 8 02:38:01 188296 1693260 89.99 2620 1142368 1079556 36.84 392164 1143024 8 02:39:01 188572 1692984 89.98 2620 1142372 1079448 36.84 391592 1143028 0 02:40:01 188844 1692712 89.96 2620 1142380 1079448 36.84 387472 1147156 20 02:41:02 188284 1693272 89.99 2620 1142384 1079448 36.84 387600 1147156 8 Average: 187965 1693591 90.01 2620 1142342 1085409 37.04 386063 1148952 9 02:32:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:33:01 eth0 497.82 258.49 1050.83 88.80 0.00 0.00 0.00 02:33:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:33:01 docker0 1.75 1.43 0.30 3.45 0.00 0.00 0.00 02:34:01 eth0 0.67 0.10 0.06 0.02 0.00 0.00 0.00 02:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:34:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:35:01 eth0 1.12 0.80 0.81 0.20 0.00 0.00 0.00 02:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:35:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:36:01 eth0 0.83 0.35 0.31 0.23 0.00 0.00 0.00 02:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:36:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:37:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 02:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:38:01 eth0 0.30 0.22 0.14 0.07 0.00 0.00 0.00 02:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:39:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 02:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:40:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 02:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:41:02 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 02:41:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:41:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 55.70 28.94 116.97 9.93 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.19 0.16 0.03 0.38 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) 08/18/20 _x86_64_ (4 CPU) 02:31:30 LINUX RESTART 02:32:01 CPU %user %nice %system %iowait %steal %idle 02:33:01 all 13.17 0.00 4.99 3.27 0.01 78.56 02:33:01 0 12.64 0.00 6.47 5.95 0.00 74.94 02:33:01 1 14.03 0.00 4.56 2.18 0.02 79.22 02:33:01 2 13.48 0.00 4.13 2.31 0.00 80.08 02:33:01 3 12.54 0.00 4.84 2.64 0.02 79.97 02:34:01 all 0.14 0.00 0.04 0.00 0.00 99.82 02:34:01 0 0.05 0.00 0.03 0.00 0.00 99.92 02:34:01 1 0.05 0.00 0.02 0.00 0.00 99.93 02:34:01 2 0.38 0.00 0.05 0.00 0.00 99.57 02:34:01 3 0.03 0.00 0.03 0.00 0.00 99.93 02:35:01 all 0.17 0.00 0.03 0.00 0.00 99.80 02:35:01 0 0.05 0.00 0.03 0.00 0.00 99.92 02:35:01 1 0.07 0.00 0.03 0.00 0.00 99.90 02:35:01 2 0.55 0.00 0.03 0.00 0.00 99.42 02:35:01 3 0.02 0.00 0.02 0.00 0.00 99.97 02:36:01 all 0.17 0.00 0.03 0.00 0.00 99.80 02:36:01 0 0.02 0.00 0.03 0.00 0.00 99.95 02:36:01 1 0.07 0.00 0.05 0.00 0.00 99.88 02:36:01 2 0.53 0.00 0.05 0.00 0.00 99.42 02:36:01 3 0.07 0.00 0.02 0.00 0.00 99.92 02:37:01 all 0.16 0.00 0.04 0.00 0.00 99.80 02:37:01 0 0.03 0.00 0.02 0.00 0.00 99.95 02:37:01 1 0.07 0.00 0.03 0.00 0.02 99.88 02:37:01 2 0.53 0.00 0.08 0.00 0.00 99.38 02:37:01 3 0.02 0.00 0.00 0.00 0.00 99.98 02:38:01 all 0.09 0.00 0.08 0.00 0.00 99.84 02:38:01 0 0.03 0.00 0.03 0.00 0.00 99.93 02:38:01 1 0.03 0.00 0.03 0.00 0.00 99.93 02:38:01 2 0.27 0.00 0.22 0.00 0.00 99.52 02:38:01 3 0.02 0.00 0.03 0.00 0.00 99.95 02:39:01 all 0.04 0.00 0.03 0.00 0.00 99.92 02:39:01 0 0.03 0.00 0.02 0.00 0.00 99.95 02:39:01 1 0.05 0.00 0.03 0.00 0.00 99.92 02:39:01 2 0.03 0.00 0.03 0.00 0.00 99.93 02:39:01 3 0.05 0.00 0.05 0.00 0.00 99.90 02:40:01 all 0.10 0.00 0.03 0.00 0.00 99.87 02:40:01 0 0.03 0.00 0.05 0.00 0.00 99.92 02:40:01 1 0.03 0.00 0.02 0.00 0.00 99.95 02:40:01 2 0.33 0.00 0.05 0.00 0.00 99.62 02:40:01 3 0.00 0.00 0.02 0.00 0.00 99.98 02:41:02 all 0.13 0.00 0.04 0.00 0.00 99.84 02:41:02 0 0.40 0.00 0.07 0.00 0.00 99.53 02:41:02 1 0.02 0.00 0.02 0.00 0.00 99.97 02:41:02 2 0.07 0.00 0.05 0.00 0.00 99.88 02:41:02 3 0.02 0.00 0.00 0.00 0.00 99.98 Average: all 1.57 0.00 0.59 0.36 0.00 97.48 Average: 0 1.47 0.00 0.75 0.66 0.00 97.13 Average: 1 1.60 0.00 0.53 0.24 0.00 97.63 Average: 2 1.79 0.00 0.52 0.26 0.00 97.43 Average: 3 1.41 0.00 0.55 0.29 0.00 97.75