---> uname -a: Linux 0e4dcba0b913 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% /w/workspace/dry_go-mod-core-contracts_PR-255 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-255@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 667 118 0 1052 1064 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) 07/17/20 _x86_64_ (4 CPU) 06:13:10 LINUX RESTART 06:14:01 tps rtps wtps bread/s bwrtn/s 06:15:01 62.24 15.13 47.12 4990.99 4921.95 06:16:01 1.58 0.00 1.58 0.00 32.96 06:17:01 0.38 0.00 0.38 0.00 5.56 06:18:01 0.28 0.00 0.28 0.00 3.23 06:19:02 0.20 0.00 0.20 0.00 2.76 06:20:01 0.27 0.00 0.27 0.00 3.30 Average: 10.87 2.53 8.34 835.09 831.52 06:14:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:15:01 174668 1706888 90.72 2620 1115880 1139608 38.89 444148 1102892 120 06:16:01 184944 1696612 90.17 2620 1115884 1076064 36.72 437928 1100560 20 06:17:01 184792 1696764 90.18 2620 1115892 1076128 36.73 439896 1098612 16 06:18:01 182216 1699340 90.32 2620 1115892 1076320 36.73 443008 1098208 20 06:19:02 181680 1699876 90.34 2620 1115956 1076416 36.74 453492 1088220 20 06:20:01 182896 1698660 90.28 2620 1115904 1076176 36.73 453480 1087032 12 Average: 181866 1699690 90.33 2620 1115901 1086785 37.09 445325 1095921 35 06:14:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 06:15:01 eth0 171.11 125.54 683.54 77.00 0.00 0.00 0.00 06:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:15:01 docker0 3.31 2.99 0.75 9.09 0.00 0.00 0.00 06:16:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 06:16:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:16:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:17:01 eth0 1.00 0.07 0.07 0.01 0.00 0.00 0.00 06:17:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:17:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:18:01 eth0 0.85 0.42 0.31 0.18 0.00 0.00 0.00 06:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:18:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:19:02 eth0 0.60 0.35 0.34 0.29 0.00 0.00 0.00 06:19:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:19:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:20:01 eth0 0.17 0.10 0.07 0.01 0.00 0.00 0.00 06:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 29.08 21.17 114.50 12.97 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.55 0.50 0.13 1.52 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) 07/17/20 _x86_64_ (4 CPU) 06:13:10 LINUX RESTART 06:14:01 CPU %user %nice %system %iowait %steal %idle 06:15:01 all 6.71 0.00 3.05 2.48 8.80 78.96 06:15:01 0 4.93 0.00 3.72 0.98 9.16 81.21 06:15:01 1 6.58 0.00 2.82 4.03 8.66 77.92 06:15:01 2 7.90 0.00 2.85 0.83 8.61 79.80 06:15:01 3 7.43 0.00 2.80 4.13 8.76 76.88 06:16:01 all 0.12 0.00 0.06 0.00 0.13 99.68 06:16:01 0 0.03 0.00 0.03 0.00 0.15 99.78 06:16:01 1 0.37 0.00 0.07 0.00 0.17 99.40 06:16:01 2 0.08 0.00 0.10 0.00 0.12 99.70 06:16:01 3 0.03 0.00 0.03 0.00 0.07 99.87 06:17:01 all 0.09 0.00 0.04 0.00 0.25 99.63 06:17:01 0 0.00 0.00 0.03 0.00 0.12 99.85 06:17:01 1 0.27 0.00 0.07 0.00 0.20 99.47 06:17:01 2 0.03 0.00 0.02 0.00 0.50 99.45 06:17:01 3 0.03 0.00 0.03 0.00 0.18 99.75 06:18:01 all 0.10 0.00 0.02 0.00 0.34 99.54 06:18:01 0 0.12 0.00 0.03 0.00 0.30 99.55 06:18:01 1 0.23 0.00 0.02 0.00 0.47 99.29 06:18:01 2 0.03 0.00 0.02 0.00 0.07 99.88 06:18:01 3 0.03 0.00 0.02 0.00 0.53 99.42 06:19:02 all 0.12 0.00 0.03 0.00 0.21 99.64 06:19:02 0 0.38 0.00 0.03 0.00 0.30 99.28 06:19:02 1 0.03 0.00 0.05 0.00 0.25 99.67 06:19:02 2 0.02 0.00 0.02 0.00 0.08 99.88 06:19:02 3 0.03 0.00 0.03 0.00 0.22 99.72 06:20:01 all 0.11 0.00 0.05 0.00 0.15 99.69 06:20:01 0 0.37 0.00 0.05 0.00 0.19 99.39 06:20:01 1 0.02 0.00 0.07 0.00 0.05 99.86 06:20:01 2 0.05 0.00 0.03 0.00 0.15 99.76 06:20:01 3 0.02 0.00 0.02 0.00 0.19 99.78 Average: all 1.21 0.00 0.54 0.41 1.64 96.20 Average: 0 0.98 0.00 0.65 0.16 1.71 96.50 Average: 1 1.25 0.00 0.51 0.67 1.63 95.95 Average: 2 1.35 0.00 0.51 0.14 1.59 96.41 Average: 3 1.25 0.00 0.48 0.68 1.65 95.93