---> uname -a: Linux aecf5df13ed3 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 7.0G 43.0G 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 7.0G 43.0G 14% /etc/resolv.conf /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hostname /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hosts /dev/vda1 50.0G 7.0G 43.0G 14% /var/log/sa-host /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/dry_go-mod-core-contracts_PR-279 /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/dry_go-mod-core-contracts_PR-279@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 643 136 0 1057 1088 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) 09/07/20 _x86_64_ (4 CPU) 05:39:27 LINUX RESTART (4 CPU) 05:40:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 05:41:01 76.71 27.40 49.31 0.00 6550.03 5093.04 0.00 05:42:01 1.70 0.00 1.70 0.00 0.00 34.47 0.00 05:43:01 0.27 0.00 0.27 0.00 0.00 3.50 0.00 05:44:01 0.27 0.00 0.27 0.00 0.00 3.18 0.00 05:45:01 0.27 0.00 0.27 0.00 0.00 3.71 0.00 05:46:01 0.32 0.00 0.32 0.00 0.00 4.63 0.00 05:47:01 45.00 42.88 2.11 0.00 4269.78 60.35 0.00 Average: 17.65 10.00 7.65 0.00 1534.33 733.31 0.00 05:40:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:41:01 165296 0 563412 29.94 2592 1150256 1118192 38.16 411724 1143704 120 05:42:01 170968 0 557552 29.63 2592 1150444 1077416 36.77 410364 1140012 20 05:43:01 171088 0 557428 29.63 2592 1150448 1077476 36.77 412744 1137952 8 05:44:01 168724 0 559788 29.75 2592 1150452 1077620 36.78 415440 1137296 12 05:45:01 169316 0 559192 29.72 2592 1150456 1077584 36.78 434572 1117992 16 05:46:01 168548 0 559948 29.76 2592 1150468 1077608 36.78 435400 1117992 8 05:47:01 82516 0 638368 33.93 2592 1158080 1452508 49.57 500032 1128432 71672 Average: 156637 0 570813 30.34 2592 1151515 1136915 38.80 431468 1131911 10265 05:40:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:41:01 eth0 488.74 281.13 1072.56 104.03 0.00 0.00 0.00 0.00 05:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:41:01 docker0 5.62 3.55 0.97 10.60 0.00 0.00 0.00 0.00 05:42:01 eth0 0.08 0.08 0.01 0.01 0.00 0.00 0.00 0.00 05:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:43:01 eth0 3.71 1.97 2.94 0.13 0.00 0.00 0.00 0.00 05:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:44:01 eth0 1.33 0.50 0.38 0.15 0.00 0.00 0.00 0.00 05:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:45:01 eth0 0.57 0.32 0.27 0.26 0.00 0.00 0.00 0.00 05:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:45:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:46:01 eth0 0.35 0.20 0.15 0.07 0.00 0.00 0.00 0.00 05:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:47:01 eth0 85.51 68.61 736.65 8.56 0.00 0.00 0.00 0.00 05:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 81.97 49.87 257.15 15.97 0.00 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.79 0.50 0.14 1.49 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) 09/07/20 _x86_64_ (4 CPU) 05:39:27 LINUX RESTART (4 CPU) 05:40:02 CPU %user %nice %system %iowait %steal %idle 05:41:01 all 13.19 0.00 3.58 2.00 0.06 81.18 05:41:01 0 11.83 0.00 4.40 3.70 0.05 80.02 05:41:01 1 15.49 0.00 3.34 1.48 0.05 79.64 05:41:01 2 11.90 0.00 3.39 1.36 0.05 83.30 05:41:01 3 13.56 0.00 3.18 1.44 0.07 81.75 05:42:01 all 0.16 0.00 0.03 0.00 0.00 99.80 05:42:01 0 0.47 0.00 0.02 0.00 0.00 99.52 05:42:01 1 0.05 0.00 0.03 0.00 0.00 99.92 05:42:01 2 0.05 0.00 0.05 0.00 0.02 99.88 05:42:01 3 0.08 0.00 0.02 0.00 0.00 99.90 05:43:01 all 0.16 0.00 0.02 0.00 0.00 99.82 05:43:01 0 0.48 0.00 0.03 0.00 0.00 99.48 05:43:01 1 0.05 0.00 0.00 0.00 0.00 99.95 05:43:01 2 0.10 0.00 0.02 0.00 0.00 99.88 05:43:01 3 0.02 0.00 0.02 0.00 0.00 99.97 05:44:01 all 0.16 0.00 0.03 0.00 0.00 99.81 05:44:01 0 0.52 0.00 0.03 0.00 0.00 99.45 05:44:01 1 0.03 0.00 0.03 0.00 0.00 99.93 05:44:01 2 0.07 0.00 0.03 0.00 0.00 99.90 05:44:01 3 0.03 0.00 0.02 0.00 0.00 99.95 05:45:01 all 0.17 0.00 0.05 0.00 0.00 99.78 05:45:01 0 0.52 0.00 0.02 0.00 0.00 99.47 05:45:01 1 0.05 0.00 0.03 0.00 0.00 99.92 05:45:01 2 0.08 0.00 0.13 0.00 0.00 99.78 05:45:01 3 0.02 0.00 0.02 0.00 0.00 99.97 05:46:01 all 0.14 0.00 0.04 0.00 0.00 99.82 05:46:01 0 0.20 0.00 0.02 0.00 0.00 99.78 05:46:01 1 0.02 0.00 0.03 0.00 0.00 99.95 05:46:01 2 0.32 0.00 0.10 0.00 0.00 99.58 05:46:01 3 0.03 0.00 0.00 0.00 0.00 99.97 05:47:01 all 1.78 0.00 0.78 0.91 0.00 96.53 05:47:01 0 2.07 0.00 0.78 0.55 0.00 96.60 05:47:01 1 0.97 0.00 0.53 0.45 0.00 98.05 05:47:01 2 1.82 0.00 0.85 1.45 0.00 95.88 05:47:01 3 2.25 0.00 0.95 1.18 0.00 95.61 Average: all 2.22 0.00 0.64 0.41 0.01 96.73 Average: 0 2.27 0.00 0.75 0.60 0.01 96.38 Average: 1 2.34 0.00 0.56 0.27 0.01 96.82 Average: 2 2.02 0.00 0.65 0.40 0.01 96.93 Average: 3 2.24 0.00 0.59 0.37 0.01 96.79