---> uname -a: Linux a8d20bb277d0 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: 2933.436 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% /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 657 116 0 1063 1075 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) 07/03/20 _x86_64_ (4 CPU) 02:09:36 LINUX RESTART 02:10:01 tps rtps wtps bread/s bwrtn/s 02:11:01 97.24 38.80 58.44 7339.15 11618.29 02:12:01 1.45 0.00 1.45 0.00 23.98 02:13:02 0.20 0.00 0.20 0.00 2.56 02:14:01 0.27 0.00 0.27 0.00 3.44 Average: 24.90 9.74 15.16 1843.15 2925.32 02:10:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:11:01 144448 1737108 92.32 2620 1155712 1125552 38.41 452208 1122784 120 02:12:01 151052 1730504 91.97 2620 1155716 1079056 36.83 449136 1120772 20 02:13:02 150348 1731208 92.01 2620 1155724 1079276 36.83 449984 1120760 20 02:14:01 151604 1729952 91.94 2620 1155724 1079060 36.83 448944 1120760 16 Average: 149363 1732193 92.06 2620 1155719 1090736 37.22 450068 1121269 44 02:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 02:11:01 eth0 478.08 265.26 1053.09 98.90 0.00 0.00 0.00 02:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:11:01 docker0 4.83 3.51 0.82 8.85 0.00 0.00 0.00 02:12:01 eth0 1.30 0.40 0.96 0.03 0.00 0.00 0.00 02:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:13:02 eth0 1.40 0.70 0.58 0.37 0.00 0.00 0.00 02:13:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:13:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:14:01 eth0 0.05 0.05 0.00 0.04 0.00 0.00 0.00 02:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 120.75 66.91 264.86 24.95 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.21 0.88 0.21 2.22 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) 07/03/20 _x86_64_ (4 CPU) 02:09:36 LINUX RESTART 02:10:01 CPU %user %nice %system %iowait %steal %idle 02:11:01 all 12.99 0.00 5.53 3.70 0.49 77.30 02:11:01 0 12.72 0.00 6.03 2.86 0.49 77.90 02:11:01 1 12.64 0.00 5.74 3.85 0.49 77.28 02:11:01 2 14.14 0.00 4.69 6.53 0.46 74.19 02:11:01 3 12.46 0.00 5.65 1.57 0.49 79.82 02:12:01 all 0.15 0.00 0.04 0.00 0.01 99.80 02:12:01 0 0.07 0.00 0.03 0.00 0.00 99.90 02:12:01 1 0.03 0.00 0.05 0.00 0.00 99.92 02:12:01 2 0.03 0.00 0.03 0.00 0.00 99.93 02:12:01 3 0.45 0.00 0.03 0.00 0.03 99.48 02:13:02 all 0.14 0.00 0.03 0.00 0.00 99.83 02:13:02 0 0.05 0.00 0.05 0.00 0.02 99.88 02:13:02 1 0.03 0.00 0.03 0.00 0.00 99.93 02:13:02 2 0.20 0.00 0.03 0.00 0.02 99.75 02:13:02 3 0.27 0.00 0.03 0.00 0.00 99.70 02:14:01 all 0.15 0.00 0.02 0.00 0.00 99.83 02:14:01 0 0.02 0.00 0.00 0.00 0.00 99.98 02:14:01 1 0.05 0.00 0.03 0.00 0.02 99.90 02:14:01 2 0.49 0.00 0.03 0.00 0.00 99.47 02:14:01 3 0.02 0.00 0.00 0.00 0.00 99.98 Average: all 3.34 0.00 1.40 0.92 0.12 94.22 Average: 0 3.19 0.00 1.52 0.71 0.13 94.45 Average: 1 3.17 0.00 1.46 0.96 0.13 94.29 Average: 2 3.70 0.00 1.19 1.62 0.12 93.37 Average: 3 3.28 0.00 1.42 0.39 0.13 94.78