---> uname -a: Linux 2ecb904abc29 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% /w/workspace/dry_go-mod-core-contracts_PR-236@tmp /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 ---> free -m: total used free shared buff/cache available Mem: 1837 637 113 0 1086 1095 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) 06/24/20 _x86_64_ (4 CPU) 04:17:19 LINUX RESTART 04:18:01 tps rtps wtps bread/s bwrtn/s 04:19:01 56.71 11.09 45.62 4618.11 4775.37 04:20:01 1.62 0.00 1.62 0.00 30.57 04:21:01 0.38 0.00 0.38 0.00 5.60 04:22:01 0.18 0.00 0.18 0.00 1.88 Average: 14.73 2.77 11.95 1154.91 1203.75 04:18:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:19:01 163136 1718420 91.33 2620 1159448 1134172 38.71 436088 1120632 28 04:20:01 171076 1710480 90.91 2620 1159452 1072596 36.61 430908 1118972 16 04:21:01 170004 1711552 90.96 2620 1159460 1072860 36.61 432544 1118976 8 04:22:01 170240 1711316 90.95 2620 1159460 1072596 36.61 432940 1118352 8 Average: 168614 1712942 91.04 2620 1159455 1088056 37.13 433120 1119233 15 04:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 04:19:01 eth0 95.19 73.05 468.79 54.97 0.00 0.00 0.00 04:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:19:01 docker0 3.13 2.61 0.71 8.67 0.00 0.00 0.00 04:20:01 eth0 0.60 0.03 0.06 0.00 0.00 0.00 0.00 04:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:21:01 eth0 1.32 0.57 0.66 0.33 0.00 0.00 0.00 04:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:22:01 eth0 0.10 0.08 0.01 0.07 0.00 0.00 0.00 04:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 24.31 18.44 117.42 13.85 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.78 0.65 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) 06/24/20 _x86_64_ (4 CPU) 04:17:19 LINUX RESTART 04:18:01 CPU %user %nice %system %iowait %steal %idle 04:19:01 all 4.09 0.00 2.13 1.81 0.98 90.98 04:19:01 0 3.98 0.00 2.17 0.47 1.02 92.36 04:19:01 1 3.81 0.00 2.01 0.38 0.92 92.88 04:19:01 2 4.31 0.00 1.80 2.45 1.03 90.40 04:19:01 3 4.30 0.00 2.54 3.95 0.95 88.26 04:20:01 all 0.16 0.00 0.04 0.00 0.02 99.78 04:20:01 0 0.48 0.00 0.00 0.00 0.02 99.50 04:20:01 1 0.08 0.00 0.08 0.00 0.03 99.80 04:20:01 2 0.05 0.00 0.02 0.00 0.02 99.92 04:20:01 3 0.02 0.00 0.05 0.00 0.03 99.90 04:21:01 all 0.15 0.00 0.04 0.00 0.02 99.80 04:21:01 0 0.45 0.00 0.05 0.00 0.00 99.50 04:21:01 1 0.07 0.00 0.03 0.00 0.03 99.87 04:21:01 2 0.05 0.00 0.02 0.00 0.03 99.90 04:21:01 3 0.02 0.00 0.03 0.00 0.00 99.95 04:22:01 all 0.14 0.00 0.05 0.00 0.03 99.78 04:22:01 0 0.48 0.00 0.02 0.00 0.03 99.47 04:22:01 1 0.03 0.00 0.05 0.00 0.02 99.90 04:22:01 2 0.03 0.00 0.07 0.00 0.02 99.88 04:22:01 3 0.02 0.00 0.03 0.00 0.05 99.90 Average: all 1.13 0.00 0.56 0.45 0.26 97.59 Average: 0 1.35 0.00 0.56 0.12 0.27 97.71 Average: 1 1.00 0.00 0.54 0.10 0.25 98.12 Average: 2 1.11 0.00 0.48 0.61 0.28 97.53 Average: 3 1.08 0.00 0.66 0.98 0.26 97.01