---> uname -a: Linux df1a306b3ba6 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: 2933.438 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-244 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-244@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 647 116 0 1073 1084 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) 06/22/20 _x86_64_ (4 CPU) 03:57:46 LINUX RESTART 03:59:01 tps rtps wtps bread/s bwrtn/s 04:00:01 9.44 2.14 7.30 504.29 186.27 04:01:01 0.30 0.02 0.28 0.13 4.18 04:02:02 0.43 0.12 0.32 2.13 6.09 04:03:01 42.74 42.18 0.56 4119.66 13.40 Average: 13.10 10.98 2.12 1143.93 52.66 03:59:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:00:01 151912 1729644 91.93 2620 1153320 1136348 38.78 419132 1149308 8 04:01:01 163004 1718552 91.34 2620 1153324 1077580 36.78 413568 1145208 8 04:02:02 162600 1718956 91.36 2620 1153468 1075580 36.71 414960 1145056 16 04:03:01 67060 1814496 96.44 2620 1206132 1276900 43.58 445252 1204012 5688 Average: 136144 1745412 92.76 2620 1166561 1141602 38.96 423228 1160896 1430 03:59:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 04:00:01 eth0 26.62 24.53 31.56 30.86 0.00 0.00 0.00 04:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:00:01 docker0 6.88 4.41 0.90 8.98 0.00 0.00 0.00 04:01:01 eth0 0.35 0.12 0.04 0.01 0.00 0.00 0.00 04:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:02:02 eth0 1.18 0.63 0.57 0.40 0.00 0.00 0.00 04:02:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:02:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:03:01 eth0 24.97 17.92 122.02 6.32 0.00 0.00 0.00 04:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 13.23 10.77 38.19 9.41 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.73 1.11 0.23 2.25 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) 06/22/20 _x86_64_ (4 CPU) 03:57:46 LINUX RESTART 03:59:01 CPU %user %nice %system %iowait %steal %idle 04:00:01 all 1.33 0.00 0.78 0.14 3.91 93.84 04:00:01 0 1.18 0.00 0.79 0.10 4.08 93.86 04:00:01 1 1.55 0.00 0.81 0.07 4.10 93.47 04:00:01 2 0.96 0.00 0.61 0.02 3.44 94.98 04:00:01 3 1.63 0.00 0.92 0.41 3.99 93.04 04:01:01 all 0.11 0.00 0.06 0.00 0.51 99.32 04:01:01 0 0.03 0.00 0.03 0.00 0.10 99.83 04:01:01 1 0.25 0.00 0.07 0.02 0.70 98.97 04:01:01 2 0.13 0.00 0.08 0.00 0.98 98.81 04:01:01 3 0.03 0.00 0.05 0.00 0.25 99.67 04:02:02 all 0.10 0.00 0.05 0.01 0.32 99.52 04:02:02 0 0.03 0.00 0.02 0.00 0.32 99.63 04:02:02 1 0.10 0.00 0.07 0.02 0.30 99.52 04:02:02 2 0.22 0.00 0.05 0.00 0.58 99.15 04:02:02 3 0.07 0.00 0.02 0.00 0.08 99.83 04:03:01 all 1.05 0.00 0.60 1.84 3.00 93.52 04:03:01 0 0.45 0.00 0.58 1.42 3.64 93.90 04:03:01 1 1.24 0.00 0.65 4.32 3.08 90.71 04:03:01 2 0.55 0.00 0.28 0.05 2.91 96.21 04:03:01 3 1.96 0.00 0.88 1.58 2.36 93.22 Average: all 0.65 0.00 0.37 0.49 1.94 96.55 Average: 0 0.43 0.00 0.36 0.38 2.04 96.80 Average: 1 0.78 0.00 0.40 1.10 2.05 95.67 Average: 2 0.46 0.00 0.26 0.02 1.98 97.28 Average: 3 0.92 0.00 0.47 0.50 1.67 96.44