---> uname -a: Linux e444a1de7d1b 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 654 109 0 1073 1077 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) 06/29/20 _x86_64_ (4 CPU) 03:26:01 LINUX RESTART 03:27:03 tps rtps wtps bread/s bwrtn/s 03:28:01 6.32 2.05 4.27 88.08 97.05 03:29:01 1.60 0.00 1.60 0.00 31.31 03:30:01 0.40 0.00 0.40 0.00 6.36 03:31:01 0.32 0.00 0.32 0.00 5.33 Average: 2.12 0.50 1.62 21.46 34.49 03:27:03 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:28:01 157656 1723900 91.62 2620 1149060 1124272 38.37 448160 1115160 20 03:29:01 162572 1718984 91.36 2620 1149064 1083728 36.99 446272 1112964 16 03:30:01 162132 1719424 91.38 2620 1149072 1083800 36.99 448580 1111132 8 03:31:01 162356 1719200 91.37 2620 1149072 1083572 36.98 450904 1108636 12 Average: 161179 1720377 91.43 2620 1149067 1093843 37.33 448479 1111973 14 03:27:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:28:01 eth0 9.53 6.69 6.30 16.14 0.00 0.00 0.00 03:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:28:01 docker0 0.00 0.02 0.00 0.00 0.00 0.00 0.00 03:29:01 eth0 9.68 4.75 7.77 0.46 0.00 0.00 0.00 03:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:01 eth0 0.40 0.33 0.26 0.23 0.00 0.00 0.00 03:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:31:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 03:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:31:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 4.89 2.93 3.56 4.11 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 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) 06/29/20 _x86_64_ (4 CPU) 03:26:01 LINUX RESTART 03:27:03 CPU %user %nice %system %iowait %steal %idle 03:28:01 all 0.58 0.00 0.13 0.15 0.00 99.15 03:28:01 0 0.55 0.00 0.09 0.02 0.00 99.34 03:28:01 1 0.34 0.00 0.17 0.09 0.00 99.40 03:28:01 2 0.93 0.00 0.16 0.07 0.00 98.84 03:28:01 3 0.48 0.00 0.10 0.43 0.00 98.98 03:29:01 all 0.15 0.00 0.06 0.00 0.00 99.79 03:29:01 0 0.07 0.00 0.07 0.00 0.00 99.87 03:29:01 1 0.08 0.00 0.05 0.00 0.00 99.87 03:29:01 2 0.38 0.00 0.07 0.00 0.00 99.55 03:29:01 3 0.07 0.00 0.05 0.00 0.00 99.88 03:30:01 all 0.16 0.00 0.03 0.00 0.00 99.81 03:30:01 0 0.03 0.00 0.02 0.00 0.00 99.95 03:30:01 1 0.02 0.00 0.03 0.00 0.00 99.95 03:30:01 2 0.52 0.00 0.02 0.00 0.00 99.47 03:30:01 3 0.05 0.00 0.05 0.00 0.00 99.90 03:31:01 all 0.12 0.00 0.02 0.00 0.00 99.85 03:31:01 0 0.00 0.00 0.02 0.00 0.00 99.98 03:31:01 1 0.03 0.00 0.03 0.00 0.00 99.93 03:31:01 2 0.03 0.00 0.03 0.00 0.00 99.93 03:31:01 3 0.45 0.00 0.03 0.00 0.00 99.52 Average: all 0.25 0.00 0.06 0.04 0.00 99.65 Average: 0 0.16 0.00 0.05 0.00 0.00 99.79 Average: 1 0.12 0.00 0.07 0.02 0.00 99.79 Average: 2 0.46 0.00 0.07 0.02 0.00 99.45 Average: 3 0.26 0.00 0.06 0.11 0.00 99.58