---> uname -a: Linux 99475e2dfa61 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% /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 661 115 0 1060 1070 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) 09/01/20 _x86_64_ (4 CPU) 15:37:23 LINUX RESTART 15:38:02 tps rtps wtps bread/s bwrtn/s 15:39:01 67.37 16.99 50.37 5258.77 5099.58 15:40:01 1.70 0.00 1.70 0.00 35.27 15:41:01 0.23 0.00 0.23 0.00 2.98 15:42:01 0.18 0.00 0.18 0.00 1.88 15:43:01 75.46 63.49 11.97 4726.22 7113.47 Average: 28.87 16.10 12.77 1986.61 2442.36 15:38:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:39:01 154420 1727136 91.79 2620 1143812 1108808 37.84 415184 1151396 120 15:40:01 160288 1721268 91.48 2620 1143816 1070164 36.52 414272 1147460 20 15:41:01 159360 1722196 91.53 2620 1143824 1070356 36.53 415368 1147412 20 15:42:01 157604 1723952 91.62 2620 1143824 1070392 36.53 417420 1146764 20 15:43:01 77280 1804276 95.89 2620 1140380 1487632 50.77 513808 1120848 45548 Average: 141790 1739766 92.46 2620 1143131 1161470 39.64 435210 1142776 9146 15:38:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:39:01 eth0 470.92 289.71 1053.32 104.35 0.00 0.00 0.00 15:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:39:01 docker0 5.91 3.55 0.97 10.33 0.00 0.00 0.00 15:40:01 eth0 0.77 0.08 0.06 0.01 0.00 0.00 0.00 15:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:41:01 eth0 0.78 0.47 0.30 0.21 0.00 0.00 0.00 15:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:42:01 eth0 0.58 0.33 0.29 0.20 0.00 0.00 0.00 15:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:43:01 eth0 86.78 60.58 2326.85 8.71 0.00 0.00 0.00 15:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 110.80 69.52 675.05 22.43 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.17 0.70 0.19 2.04 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) 09/01/20 _x86_64_ (4 CPU) 15:37:23 LINUX RESTART 15:38:02 CPU %user %nice %system %iowait %steal %idle 15:39:01 all 11.46 0.00 3.92 2.35 0.01 82.26 15:39:01 0 10.92 0.00 4.33 1.73 0.02 83.01 15:39:01 1 10.65 0.00 3.14 1.31 0.02 84.88 15:39:01 2 11.25 0.00 4.64 4.45 0.02 79.65 15:39:01 3 13.00 0.00 3.58 1.93 0.02 81.48 15:40:01 all 0.13 0.00 0.06 0.00 0.00 99.82 15:40:01 0 0.35 0.00 0.07 0.00 0.00 99.58 15:40:01 1 0.05 0.00 0.03 0.00 0.00 99.92 15:40:01 2 0.03 0.00 0.05 0.00 0.00 99.92 15:40:01 3 0.08 0.00 0.05 0.00 0.00 99.87 15:41:01 all 0.15 0.00 0.04 0.00 0.00 99.80 15:41:01 0 0.03 0.00 0.05 0.00 0.00 99.92 15:41:01 1 0.05 0.00 0.07 0.00 0.00 99.88 15:41:01 2 0.03 0.00 0.05 0.00 0.00 99.92 15:41:01 3 0.48 0.00 0.02 0.00 0.00 99.50 15:42:01 all 0.14 0.00 0.03 0.00 0.00 99.83 15:42:01 0 0.03 0.00 0.02 0.00 0.00 99.95 15:42:01 1 0.03 0.00 0.02 0.00 0.00 99.95 15:42:01 2 0.03 0.00 0.05 0.00 0.00 99.92 15:42:01 3 0.48 0.00 0.03 0.00 0.00 99.48 15:43:01 all 2.44 0.00 1.41 1.77 0.01 94.37 15:43:01 0 1.87 0.00 1.17 0.52 0.02 96.43 15:43:01 1 2.68 0.00 1.64 3.46 0.02 92.21 15:43:01 2 1.90 0.00 1.25 1.22 0.02 95.61 15:43:01 3 3.30 0.00 1.61 1.86 0.00 93.24 Average: all 2.82 0.00 1.08 0.82 0.01 95.28 Average: 0 2.60 0.00 1.11 0.44 0.01 95.84 Average: 1 2.65 0.00 0.97 0.95 0.01 95.42 Average: 2 2.61 0.00 1.19 1.12 0.01 95.07 Average: 3 3.42 0.00 1.05 0.75 0.00 94.78