---> uname -a: Linux 272d49b5e30a 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/dry_go-mod-core-contracts_PR-236 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-236@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 639 127 0 1071 1093 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) 06/23/20 _x86_64_ (4 CPU) 08:09:33 LINUX RESTART 08:10:01 tps rtps wtps bread/s bwrtn/s 08:11:01 71.39 21.64 49.75 5645.01 5116.89 08:12:01 1.72 0.00 1.72 0.00 33.14 08:13:01 0.33 0.00 0.33 0.00 5.73 08:14:02 0.28 0.00 0.28 0.00 4.60 Average: 18.44 5.41 13.03 1411.84 1290.62 08:10:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:11:01 165244 1716312 91.22 2620 1154568 1113456 38.00 431888 1123728 8 08:12:01 171348 1710208 90.89 2620 1154576 1070740 36.54 429460 1120540 8 08:13:01 170424 1711132 90.94 2620 1154584 1071056 36.55 431176 1120536 8 08:14:02 167984 1713572 91.07 2620 1154584 1071104 36.55 433404 1120360 8 Average: 168750 1712806 91.03 2620 1154578 1081589 36.91 431482 1121291 8 08:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:11:01 eth0 376.51 226.48 1019.00 95.08 0.00 0.00 0.00 08:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:11:01 docker0 3.26 2.71 0.71 8.67 0.00 0.00 0.00 08:12:01 eth0 0.68 0.10 0.06 0.01 0.00 0.00 0.00 08:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:13:01 eth0 2.70 1.57 1.92 0.28 0.00 0.00 0.00 08:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:14:02 eth0 0.45 0.38 0.30 0.20 0.00 0.00 0.00 08:14:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:14:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 95.13 57.16 255.43 23.90 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.82 0.68 0.18 2.17 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) 06/23/20 _x86_64_ (4 CPU) 08:09:33 LINUX RESTART 08:10:01 CPU %user %nice %system %iowait %steal %idle 08:11:01 all 12.75 0.00 3.87 2.34 0.02 81.02 08:11:01 0 12.75 0.00 4.43 1.14 0.02 81.67 08:11:01 1 14.50 0.00 2.80 1.78 0.02 80.90 08:11:01 2 11.53 0.00 3.99 3.29 0.02 81.17 08:11:01 3 12.24 0.00 4.26 3.14 0.02 80.35 08:12:01 all 0.16 0.00 0.04 0.00 0.00 99.80 08:12:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:12:01 1 0.07 0.00 0.05 0.00 0.00 99.88 08:12:01 2 0.28 0.00 0.05 0.00 0.00 99.67 08:12:01 3 0.28 0.00 0.03 0.00 0.00 99.68 08:13:01 all 0.18 0.00 0.04 0.00 0.00 99.78 08:13:01 0 0.10 0.00 0.07 0.00 0.00 99.83 08:13:01 1 0.03 0.00 0.03 0.00 0.02 99.92 08:13:01 2 0.55 0.00 0.03 0.00 0.00 99.42 08:13:01 3 0.03 0.00 0.02 0.00 0.00 99.95 08:14:02 all 0.14 0.00 0.04 0.00 0.00 99.82 08:14:02 0 0.02 0.00 0.03 0.00 0.00 99.95 08:14:02 1 0.07 0.00 0.03 0.00 0.00 99.90 08:14:02 2 0.43 0.00 0.08 0.00 0.00 99.48 08:14:02 3 0.03 0.00 0.03 0.00 0.00 99.93 Average: all 3.29 0.00 0.99 0.58 0.01 95.13 Average: 0 3.20 0.00 1.13 0.28 0.00 95.37 Average: 1 3.65 0.00 0.73 0.44 0.01 95.17 Average: 2 3.19 0.00 1.03 0.82 0.00 94.96 Average: 3 3.13 0.00 1.08 0.78 0.00 95.00