---> uname -a: Linux 6db43b96b9ae 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% /w/workspace/dry_go-mod-core-contracts_PR-250@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-250 ---> free -m: total used free shared buff/cache available Mem: 1837 636 118 0 1082 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) 07/07/20 _x86_64_ (4 CPU) 15:56:24 LINUX RESTART 15:57:01 tps rtps wtps bread/s bwrtn/s 15:58:01 56.79 13.06 43.73 4800.93 4766.97 15:59:01 1.60 0.00 1.60 0.00 30.86 16:00:01 0.22 0.00 0.22 0.00 2.61 16:01:02 0.30 0.02 0.28 0.13 3.86 Average: 14.74 3.27 11.46 1201.12 1201.92 15:57:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:58:01 157580 1723976 91.63 2620 1159300 1165224 39.77 425704 1136192 20 15:59:01 167192 1714364 91.11 2620 1159304 1088292 37.14 420384 1133336 16 16:00:01 166316 1715240 91.16 2620 1159312 1088584 37.15 421796 1133336 8 16:01:02 164964 1716592 91.23 2620 1159312 1090832 37.23 422828 1132744 8 Average: 164013 1717543 91.28 2620 1159307 1108233 37.82 422678 1133902 13 15:57:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:58:01 eth0 338.75 218.87 701.07 83.88 0.00 0.00 0.00 15:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:58:01 docker0 3.31 2.91 0.72 8.86 0.00 0.00 0.00 15:59:01 eth0 0.72 0.08 0.06 0.01 0.00 0.00 0.00 15:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:00:01 eth0 1.40 0.68 0.58 0.40 0.00 0.00 0.00 16:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:01:02 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 16:01:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16:01:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 85.30 54.97 175.56 21.09 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.83 0.73 0.18 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) 07/07/20 _x86_64_ (4 CPU) 15:56:24 LINUX RESTART 15:57:01 CPU %user %nice %system %iowait %steal %idle 15:58:01 all 7.06 0.00 2.95 1.84 0.02 88.13 15:58:01 0 6.97 0.00 3.15 0.12 0.02 89.75 15:58:01 1 7.59 0.00 2.64 4.85 0.02 84.91 15:58:01 2 6.63 0.00 3.01 1.17 0.02 89.17 15:58:01 3 7.04 0.00 3.03 1.21 0.02 88.71 15:59:01 all 0.15 0.00 0.03 0.00 0.00 99.81 15:59:01 0 0.23 0.00 0.05 0.00 0.00 99.72 15:59:01 1 0.05 0.00 0.02 0.00 0.00 99.93 15:59:01 2 0.30 0.00 0.03 0.00 0.00 99.67 15:59:01 3 0.07 0.00 0.03 0.00 0.00 99.90 16:00:01 all 0.18 0.00 0.03 0.00 0.00 99.79 16:00:01 0 0.03 0.00 0.03 0.00 0.00 99.93 16:00:01 1 0.05 0.00 0.02 0.00 0.00 99.93 16:00:01 2 0.55 0.00 0.03 0.00 0.00 99.42 16:00:01 3 0.07 0.00 0.05 0.00 0.02 99.87 16:01:02 all 0.13 0.00 0.04 0.00 0.00 99.83 16:01:02 0 0.02 0.00 0.03 0.00 0.00 99.95 16:01:02 1 0.13 0.00 0.05 0.00 0.00 99.82 16:01:02 2 0.32 0.00 0.02 0.00 0.00 99.67 16:01:02 3 0.05 0.00 0.05 0.00 0.00 99.90 Average: all 1.88 0.00 0.76 0.46 0.00 96.90 Average: 0 1.81 0.00 0.81 0.03 0.00 97.35 Average: 1 1.95 0.00 0.68 1.21 0.00 96.16 Average: 2 1.94 0.00 0.77 0.29 0.00 96.99 Average: 3 1.80 0.00 0.79 0.30 0.01 97.10