---> uname -a: Linux e8fd2349453d 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-271 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-271@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 628 125 0 1083 1103 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) 08/31/20 _x86_64_ (4 CPU) 18:09:21 LINUX RESTART 18:10:02 tps rtps wtps bread/s bwrtn/s 18:11:01 48.78 10.51 38.27 4409.48 2341.05 18:12:01 1.68 0.00 1.68 0.00 30.69 18:13:01 0.23 0.00 0.23 0.00 2.85 18:14:01 0.28 0.00 0.28 0.00 3.51 Average: 12.60 2.60 10.00 1088.96 587.44 18:10:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 18:11:01 163104 1718452 91.33 2620 1165336 1111656 37.94 428096 1129516 20 18:12:01 168116 1713440 91.07 2620 1165340 1074992 36.69 426140 1126640 8 18:13:01 167572 1713984 91.09 2620 1165344 1075240 36.70 428484 1125488 8 18:14:01 165928 1715628 91.18 2620 1165348 1075252 36.70 430536 1125156 16 Average: 166180 1715376 91.17 2620 1165342 1084285 37.00 428314 1126700 13 18:10:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 18:11:01 eth0 133.41 90.61 464.16 52.19 0.00 0.00 0.00 18:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:11:01 docker0 5.67 3.93 0.97 10.34 0.00 0.00 0.00 18:12:01 eth0 0.42 0.02 0.03 0.00 0.00 0.00 0.00 18:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:13:01 eth0 0.85 0.38 0.31 0.20 0.00 0.00 0.00 18:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:14:01 eth0 1.50 0.50 0.36 0.21 0.00 0.00 0.00 18:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 33.64 22.60 114.80 12.99 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.40 0.97 0.24 2.55 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) 08/31/20 _x86_64_ (4 CPU) 18:09:21 LINUX RESTART 18:10:02 CPU %user %nice %system %iowait %steal %idle 18:11:01 all 3.69 0.00 1.89 2.27 0.02 92.13 18:11:01 0 3.86 0.00 1.97 1.58 0.00 92.58 18:11:01 1 3.38 0.00 1.60 2.48 0.00 92.54 18:11:01 2 3.64 0.00 2.12 0.63 0.02 93.59 18:11:01 3 3.89 0.00 1.87 4.40 0.03 89.80 18:12:01 all 0.13 0.00 0.05 0.00 0.00 99.82 18:12:01 0 0.43 0.00 0.05 0.00 0.00 99.52 18:12:01 1 0.03 0.00 0.05 0.00 0.00 99.92 18:12:01 2 0.03 0.00 0.05 0.00 0.00 99.92 18:12:01 3 0.02 0.00 0.03 0.00 0.00 99.95 18:13:01 all 0.19 0.00 0.03 0.00 0.00 99.78 18:13:01 0 0.55 0.00 0.02 0.00 0.00 99.43 18:13:01 1 0.05 0.00 0.05 0.00 0.00 99.90 18:13:01 2 0.08 0.00 0.02 0.00 0.00 99.90 18:13:01 3 0.05 0.00 0.05 0.00 0.00 99.90 18:14:01 all 0.16 0.00 0.03 0.00 0.00 99.81 18:14:01 0 0.52 0.00 0.03 0.00 0.02 99.43 18:14:01 1 0.05 0.00 0.03 0.00 0.00 99.92 18:14:01 2 0.03 0.00 0.02 0.00 0.00 99.95 18:14:01 3 0.03 0.00 0.05 0.00 0.00 99.92 Average: all 1.03 0.00 0.50 0.56 0.01 97.91 Average: 0 1.33 0.00 0.51 0.39 0.00 97.77 Average: 1 0.87 0.00 0.43 0.61 0.00 98.10 Average: 2 0.93 0.00 0.54 0.15 0.00 98.36 Average: 3 0.98 0.00 0.49 1.08 0.01 97.43