---> uname -a: Linux 4fea9ec467ba 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% /w/workspace/exfoundry_go-mod-messaging_PR-55 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/exfoundry_go-mod-messaging_PR-55@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 648 118 0 1071 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) 06/16/20 _x86_64_ (4 CPU) 22:39:37 LINUX RESTART 22:40:03 tps rtps wtps bread/s bwrtn/s 22:41:01 103.69 40.61 63.07 7650.16 15260.61 22:42:01 1.65 0.00 1.65 0.00 30.85 22:43:01 0.50 0.00 0.50 0.00 8.31 22:44:01 0.20 0.00 0.20 0.00 1.75 22:45:01 55.96 45.39 10.57 4425.31 7174.98 Average: 31.93 17.05 14.88 2380.47 4424.01 22:40:03 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 22:41:01 158464 1723092 91.58 2620 1153456 1106912 37.78 411944 1150552 120 22:42:01 163360 1718196 91.32 2620 1153460 1071564 36.57 411648 1146724 16 22:43:01 163140 1718416 91.33 2620 1153468 1071736 36.58 412472 1146716 8 22:44:01 162860 1718696 91.34 2620 1153468 1071764 36.58 412432 1146712 8 22:45:01 72176 1809380 96.16 2620 1160240 1506352 51.41 515832 1124572 9872 Average: 144000 1737556 92.35 2620 1154818 1165666 39.78 432866 1143055 2005 22:40:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 22:41:01 eth0 483.83 276.37 1076.20 90.36 0.00 0.00 0.00 22:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:41:01 docker0 1.50 1.33 0.28 2.52 0.00 0.00 0.00 22:42:01 eth0 0.72 0.10 0.06 0.02 0.00 0.00 0.00 22:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:43:01 eth0 1.70 0.57 1.14 0.18 0.00 0.00 0.00 22:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:44:01 eth0 0.57 0.28 0.27 0.23 0.00 0.00 0.00 22:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:45:01 eth0 98.83 63.62 2327.86 9.08 0.00 0.00 0.00 22:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 114.69 66.81 678.59 19.51 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 0.26 0.06 0.49 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) 06/16/20 _x86_64_ (4 CPU) 22:39:37 LINUX RESTART 22:40:03 CPU %user %nice %system %iowait %steal %idle 22:41:01 all 12.77 0.00 5.42 5.03 0.02 76.76 22:41:01 0 12.92 0.00 6.01 3.91 0.00 77.17 22:41:01 1 12.41 0.00 5.39 5.22 0.02 76.97 22:41:01 2 13.60 0.00 5.17 5.12 0.00 76.11 22:41:01 3 12.17 0.00 5.12 5.90 0.03 76.78 22:42:01 all 0.16 0.00 0.04 0.00 0.00 99.80 22:42:01 0 0.50 0.00 0.03 0.00 0.00 99.47 22:42:01 1 0.03 0.00 0.02 0.00 0.00 99.95 22:42:01 2 0.03 0.00 0.02 0.00 0.00 99.95 22:42:01 3 0.07 0.00 0.07 0.00 0.00 99.87 22:43:01 all 0.17 0.00 0.04 0.00 0.00 99.80 22:43:01 0 0.52 0.00 0.03 0.00 0.00 99.45 22:43:01 1 0.05 0.00 0.03 0.00 0.00 99.92 22:43:01 2 0.05 0.00 0.05 0.00 0.00 99.90 22:43:01 3 0.03 0.00 0.05 0.00 0.00 99.92 22:44:01 all 0.18 0.00 0.03 0.00 0.00 99.79 22:44:01 0 0.30 0.00 0.03 0.00 0.02 99.65 22:44:01 1 0.12 0.00 0.03 0.00 0.00 99.85 22:44:01 2 0.28 0.00 0.07 0.00 0.00 99.65 22:44:01 3 0.03 0.00 0.02 0.00 0.00 99.95 22:45:01 all 2.25 0.00 1.18 0.96 0.01 95.60 22:45:01 0 2.15 0.00 1.18 0.45 0.00 96.21 22:45:01 1 2.45 0.00 1.15 0.65 0.02 95.73 22:45:01 2 2.21 0.00 1.07 1.34 0.00 95.39 22:45:01 3 2.19 0.00 1.29 1.40 0.00 95.12 Average: all 3.03 0.00 1.31 1.17 0.01 94.49 Average: 0 3.20 0.00 1.42 0.85 0.00 94.53 Average: 1 2.94 0.00 1.29 1.14 0.01 94.62 Average: 2 3.15 0.00 1.24 1.26 0.00 94.34 Average: 3 2.82 0.00 1.27 1.42 0.01 94.48